Commit Graph

1247 Commits

Author SHA1 Message Date
PKEuS ce961578c2 New checks (inconclusive): Suspicious calculation with sizeof()
- Check for sizeof(ptr)/something: This indicates that programmer was trying to calculate array size, but sizeof(ptr) doesn't return the length of the memory area, but size of a pointer.
- Check for sizeof()*sizeof(): This indicates that programmer misunderstood what sizeof() does: It does return the length in bytes of the given variable, not e.g. the number of elements in an array.
2012-11-09 18:08:20 +01:00
PKEuS aa2ad41629 Print message "Found calculation inside sizeof()" also for increment/decrement operator. 2012-11-06 11:39:47 -08:00
PKEuS bbe06c65c0 Added support for wide-strings (wcs* functions, std::wstring, std::*wstringstream) at many places. 2012-11-06 10:54:52 -08:00
Zachary Blair 51d128c918 Fixed #2029 (free invalid address) by reporting previously-unreported errors as "inconclusive" 2012-11-05 21:02:51 -08:00
PKEuS 1c399c86ca Improved fix for #4311; Added back support for "this." (fixes again #4291)
Added TODO unit test for missing varid.
2012-11-03 21:16:05 +01:00
Daniel Marjamäki 6c2563c467 Fixed #4311 (False positive: warning (selfAssignment): Redundant assignment of 'm_bar' to itself. 2012-11-03 13:18:43 +01:00
PKEuS a36e008967 Fixed #4314: Using CheckNullPointer::isPointerDeRef() here is overkill and doesn't work as intended, since this function is designed to return 'false' if it isn't sure. 2012-11-03 10:25:32 +01:00
Daniel Marjamäki e7483af028 Opposite inner conditions - made check 'experimental' because there are unsolved false positives. 2012-10-21 18:18:29 +02:00
Baris Demiray d84d360afc Fixed #4291 (Variable ID is not set when variable is accessed through 'this') 2012-10-19 06:18:13 +02:00
Robert Reif c7961b147d speed up checks by caching commonly looked up stuff in the symbol database 2012-10-11 06:12:24 +02:00
Robert Reif bbfd676b4e speed up checks by caching commonly looked up stuff in the symbol database 2012-10-10 20:42:07 +02:00
Robert Reif 8ccbde117a Fixed #4261 (CheckOther::checkComparisonOfFuncReturningBool using wrong function scope test) 2012-10-08 16:15:07 +02:00
Alexander Mai 3656366c7e Fixed #4257 (False Positive: String literal compared with variable - for non-pointer variable) 2012-10-07 16:26:03 +02:00
Daniel Marjamäki 2f069f550f Removed Java/C# handling 2012-10-02 18:44:36 +02:00
Edoardo Prezioso 72666e10d1 Related to previous commit: reduce scope level, remove the now redundant check. 2012-10-02 15:19:29 +02:00
Edoardo Prezioso 60de3e75af CheckOther::checkComparisonOfBoolWithBool,checkComparisonOfFuncReturningBool: use symbolDatabase to check only tokens in executable code. 2012-10-01 15:38:31 +02:00
PKEuS 7a1e64fdd4 Replaced unsafe local isFunction() function by symboldatabase. 2012-09-29 11:32:11 +02:00
PKEuS c17853949d Fixed scope handling problems with CheckOther::checkComparisonOfFuncReturningBool(), removed its experimental status. 2012-09-29 11:23:30 +02:00
Daniel Marjamäki 52be4a5925 Disabled checkComparisonOfBoolWithBool since there are false positives. Ticket #2617 2012-09-28 19:11:36 +02:00
Daniel Marjamäki ff4f8b58f3 Disable checkComparisonOfFuncReturningBool check because of false warnings. Ticket #2617 2012-09-28 18:51:10 +02:00
Edoardo Prezioso 7362ca9e8f Fixed #4242 (segmentation fault of cppcheck (invalid code: '<')) 2012-09-28 11:24:35 +02:00
Mohit Mate 9e297c95f2 Fixed #2617 (improve check: comparing boolean with '<') 2012-09-26 18:18:36 +02:00
PKEuS 508e9394d3 Added some nullpointer-checks and removed some redundant ones based on VS2012 code analysis results. 2012-09-17 15:22:51 +02:00
PKEuS 5237ed2de9 Message refactorization: checkother.cpp 2012-09-16 19:44:02 +02:00
PKEuS 9a624576f4 Revert "CheckOther::clarifyStatement: improved message to show what's the 'bad' and the 'good' expression."
This reverts commit f8591f9004.
2012-09-15 20:19:02 +02:00
Daniel Marjamäki 7ec825cd5d Cppcheck: Fixed Cppcheck warning about variable scope 2012-09-15 15:54:52 +02:00
PKEuS 22a8e3f4e6 Replaced Tokenizer::getFunctionTokenByName() by SymbolDatabase::findFunctionByName(), which handles scopes slightly better. 2012-09-11 18:03:47 +02:00
PKEuS 5940d77a62 Disabled C++ specific checks and simplifications when checking a C or non-C++ file. 2012-09-10 19:02:32 +02:00
PKEuS a4b5824dec New internal check: checkRedundantNextPrevious().
Fixed findings by new internal check
2012-09-07 12:36:40 +02:00
PKEuS e4a693eaab Refactorizations:
- Fixed several findings of CheckInternal.
- Removed some debug code from CheckOther::checkRedundantAssignment().
2012-09-07 11:59:20 +02:00
Edoardo Prezioso 097d0816d0 Fixed #4150 (new ineffective statement check warning wrong). 2012-09-06 17:48:30 +02:00
Arpit Chaudhary 67e40a85e5 Improved check for shifting by negative values and removed false positives 2012-09-05 16:09:40 +02:00
Nilesh Kumar c7633fc73c Fixed #3645 2012-09-05 13:48:00 +02:00
Zachary Blair 8546bcc94e Fixed #2029 (new check: free invalid address) 2012-09-04 23:31:23 -07:00
Daniel Marjamäki 2197b84d78 astyle formatting 2012-09-04 16:29:23 +02:00
Edoardo Prezioso f8591f9004 CheckOther::clarifyStatement: improved message to show what's the 'bad' and the 'good' expression. 2012-09-04 02:07:55 +02:00
anuraggarg011 b156c727b0 Fixed #3939: Support ****foo++; 2012-09-03 17:10:27 +02:00
Ankita Gupta c3a65dca40 Fixed #3793 (improve check: calculation in sizeof) 2012-09-03 15:56:10 +02:00
PKEuS 27cafd495a Don't bailout for noreturn functions in checkRedundantAssignments outside switch. 2012-09-03 12:03:30 +02:00
PKEuS d98ee357d4 Fixed crash #4135 when using Q_DECLARE_METATYPE 2012-09-03 11:30:36 +02:00
PKEuS 2be2738c6e Moved duplicate code into function in CheckOther::checkRedundantAssignment() 2012-09-03 10:46:51 +02:00
PKEuS 81ff721113 Fixed variable shadow warning 2012-09-02 17:00:16 +02:00
PKEuS 7bd732efe4 Invented a fix that compiles on GCC and doesn't crash. 2012-09-02 16:53:38 +02:00
PKEuS 794a491515 Fixed two other compilation errors on GCC. 2012-09-02 16:42:38 +02:00
PKEuS 2d64b69cf4 New check: Detect redundant assignment to a variable and redundant copying to a buffer
This check partially replaces the check for redundant assignments in switch
2012-09-02 13:09:32 +02:00
pranav1509 6f6baa67e4 Added more patterns to redundant condition check. 2012-09-01 13:39:32 +02:00
PKEuS 808c3468c9 New check: detect suspicious comparison of string literal with char* variable
Bugfix: Update Token type when varId is set
2012-08-24 14:25:17 +02:00
PKEuS 76fbcce13f Restored (intentional) content of screwed up commits 1bcdf4ce3d and 674f7980d519712ff16d8f874dfe55a84deb4b5b:
- New check (Inconclusive): Array filled incompletely with memset/memcpy/memmove
-- This check only warns if the number of elements is given as size in bytes to memset, memcpy or memmove and if the size of an element is larger than 1 Byte. It does not warn for random numbers

- New check: Detect ineffective statements like '*foo++;' (Should be: '(*foo)++;')

Sorry for the inconveniences.
2012-08-24 11:28:50 +02:00
Edoardo Prezioso 0f1accc2da Revert latest two commits as they break the compilation and the style. PKEuS??? 2012-08-24 00:10:19 +02:00
PKEuS 1bcdf4ce3d New check: Detect ineffective statements like '*foo++;' (Should be: '(*foo)++;') 2012-08-23 12:28:40 -07:00
PKEuS 674f7980d5 New check (Inconclusive): Array filled incompletely with memset/memcpy/memmove.
This check only warns if the number of elements is given as size in bytes to memset, memcpy or memmove and if the size of an element is larger than 1 Byte. It does not warn for random numbers
2012-08-23 11:27:00 -07:00
Arpit Chaudhary 7c8da17c44 Added check for detecting if a variable or number is shifted by negative right operand. Statements like:
int i = -1;
 a << i;

 would result in an error message stating undefined behavior.
2012-08-22 15:44:20 +02:00
Kumar Ashwani afe030ce9b Fixed #2628: Detect redudant usage of operator++/-- in switch. 2012-08-22 14:40:57 +02:00
Edoardo Prezioso 2b5cd2effc Fixed G++ [-Wparentheses] warning. This also fixed #4073 (Crash on self assignment). 2012-08-21 20:15:04 +02:00
PKEuS b4b5c80db9 Improved check: Added message when checking sign of a pointer. 2012-08-21 03:28:02 -07:00
PKEuS b641a10e35 Fixed false negative: memset(foo, 0, sizeof(&foo)); is as suspicious as memset(foo, 0, sizeof(foo)); 2012-08-20 10:08:18 -07:00
PKEuS a243983242 Refactorized type handling in CheckIO and CheckOther:
- Added several types (std::) to isComplexType
- Types in namespace std:: are considered to have no side-effects (solved one TODO)
- Scope of a pointer can be limited without side effects
2012-08-20 08:57:28 -07:00
PKEuS c8773b891d Refactorization: Make use of Token::scope() replacing certain indentation counters 2012-08-12 03:13:07 -07:00
PKEuS 452f95cea0 More robust template detection in clarifyCondition check based on Token::link. (#3818)
Create links between < and > only on non-C code.
AStyle fix
2012-08-02 04:03:01 -07:00
Ettl Martin 98d608231d spelling fixes 2012-07-31 23:35:56 +02:00
PKEuS 4e2a86260f Really fixed #3941. 2012-07-29 06:50:05 -07:00
PKEuS 26a2379f9f Fixed false positive #3941. 2012-07-29 06:39:43 -07:00
PKEuS ae6201d289 Fixed false positive "Parameter 'x' is passed as a value" for types like std::vector<T>::size_type (#3986) 2012-07-23 01:41:20 -07:00
Zhao Qifa 188d2e143d add a performance checker for const assignment 2012-07-22 09:17:00 +02:00
PKEuS 41fecb2e6d Fixed evaluation of redundant conditions (#3972) 2012-07-13 06:01:19 -07:00
PKEuS e8f4dce25f Added check to CheckInternal: detect invalid patterns like "%typ%"
Replaced some Token::Match by Token::simpleMatch (suggestions of internal checks)
2012-07-11 08:45:16 -07:00
Robert Morin 25c1cc4c8e Improve check: warn when comparing boolean value with < <= > >=. Ticket: #2617 2012-07-03 06:39:13 +02:00
Daniel Marjamäki 162a430354 Fixed #3868 (false positive: (style) Same expression on both sides of '|'.) 2012-06-23 19:54:15 +02:00
Daniel Marjamäki a15dac9285 simple spell checking 'itis' => 'it is' 2012-06-23 10:08:18 +02:00
Daniel Marjamäki 3db58bb57f Reviewed C handling in CheckOther::clarifyCondition, never treat x<..> as a template in C files. 2012-06-23 07:29:49 +02:00
Daniel Marjamäki 8aba801360 Fixed #3800 (False negative: Self-assignement of variable declared as 'extern') 2012-06-22 11:23:50 +02:00
Zachary Blair fa2bca1e09 Ticket #3876: Improved check by only bailing of loops that contain break or continue 2012-06-16 13:11:09 -07:00
Daniel Marjamäki 89b1b4ea6e Fixed #3892 (False positive: 'if (var >= 0.0) then if (var >= 0.0) always returns true 2012-06-15 16:54:02 +02:00
Zachary Blair e2348560e4 Fixed Ticket #3876 (Error (double free) detected that can't possibly happen) 2012-06-10 17:50:31 -07:00
Daniel Marjamäki 905615e991 Fixed #3878 (Sign extension with unsigned char false positive) 2012-06-09 08:43:13 +02:00
PKEuS e191f0d7d4 Fixed test failures in testio caused by my last commit. 2012-06-08 10:35:08 -07:00
PKEuS c463d97386 Refactorization:
- Implemented consistent behaviour of Variable::typeStartToken/typeEndToken: Skip const and static on all variables.
- Simplified patterns containing "static|" or "const|" when matching typeStartToken.
2012-06-08 09:05:02 -07:00
Daniel Marjamäki 69846b2a06 Fixed #3872 ('char variables in bit operations' warning) 2012-06-08 17:24:54 +02:00
Zachary Blair 2bd171dded Fixed #3794 (New check: Missing break in switch (duplicate bitwise operation)) 2012-05-28 21:19:22 -07:00
PKEuS 9dc8123151 Refactorizations:
- Use const string references instead of const strings copies when possible
- Fixed cppcheck warning about postfix increment in CheckIO
- Use symbolDatabase to detect pointers in CheckOther::checkAssignBoolToPointer
2012-05-25 03:09:41 -07:00
PKEuS e2bab4b6a3 Implemented Function::nestedIn to be able to identify the scope the function belongs to, even if Function::functionScope.functionOf is not available.
Refactorized usage of SymbolDatabase in checkOther:
- Don't copy Function instances in checkExpressionRange
- Simplifications by more accurate usage of information in database
2012-05-24 08:40:43 -07:00
PKEuS 97c4af44ca Refactorizations in checkOther:
- More accurate usage of symbolDatabase to reduce code and false negatives
- Avoided unnecessary construction of pattern string
- Only search for class/struct definition before usage
2012-05-24 06:34:59 -07:00
PKEuS 334fc16f29 Refactorized CheckOther::checkSizeofForArrayParameter: Use symboldatabase to detect arrays. 2012-05-24 00:39:16 -07:00
Daniel Marjamäki 77e9106ec0 Fixed #3634 (False positive: compareBoolExpressionWithInt when using boost::tuples) 2012-05-22 19:01:21 +02:00
PKEuS b81eafe0dc Splitted CheckIO from CheckOther. 2012-05-20 02:57:07 -07:00
PKEuS be7b104a8e Added missing checks to CheckClass::classInfo()
Replaced tokAt(1) with next() in checkother.cpp
2012-05-19 01:51:47 -07:00
Andy Maloney 4686294d7e Fix compiler warning about empty for body 2012-05-18 14:00:10 -04:00
PKEuS a9cfe2814a Made some functions const according to cppcheck results 2012-05-17 02:54:17 -07:00
Daniel Marjamäki f803a18d50 Fixed #3749 (false positive: same expression on both sides of operator) 2012-05-17 07:26:57 +02:00
PKEuS 06a77679d4 Refactorizations:
- Added support for pointers in self assignement check
- Removed redundant for loop in checknullpointer.cpp
- Fixed warning about signed/unsigned mismatch in cppcheck.cpp by making Settings::_maxConfig unsigned
2012-05-11 10:38:19 -07:00
PKEuS ec00824fd3 Fixed #3357:
- Print "inconclusive" tag in cli
- Fixed inconclusive handling in checkbufferoverrun.cpp
- Merged reportInconclusiveError into reportError by adding an additional parameter "bool inconclusive" which is false per default
2012-05-06 10:37:41 -07:00
Ettl Martin bb8342fbb4 fixed misspelled word 'Comparision' --> 'Comparison' 2012-04-26 23:04:55 +02:00
PKEuS 92737578ac Refactorizations:
- removed unused function CheckOther::concatNames
- Replaced one indendation counter by Token::link() in checkother.cpp
- Forward declaration of Settings in threadexecutor.h
2012-04-26 15:29:39 +02:00
PKEuS 5ac7552e4e New check: Comparision of modulo results that are always true/false. 2012-04-26 15:23:47 +02:00
PKEuS dd5e9aa454 Make use of recently implemented Token::type() functionality 2012-04-25 09:56:07 +02:00
PKEuS 6a37c36ee8 Fixed #3741
Removed redundant nullpointer check (cppcheck catch)
2012-04-18 16:35:04 +02:00
PKEuS 8e5949c6ce Added several C++11 algorithms and containers to CheckStl
Added pattern "> %varid%" to CheckStl::stlBoundries()
Fixed message in checkOther (#1320)
2012-04-17 12:54:01 +02:00
PKEuS bac8ed7127 Refactorized stringification of tokens:
- Function that stringifies one token: Token::stringify()
- Functions that stringify a list of tokens: Token::stringifyList()
-- Single and powerful "base" function, used by several "light" functions
Refactorized
- testtokenize.cpp and testsimplifytokens.cpp: Use improved stringification functions instead of several local implementations
- Avoided redundand creation of std::string when using TestTokenizer::tokenizeAndStringify and in cmdlineparser.cpp
2012-04-16 19:51:07 +02:00
Daniel Marjamäki 66227c4da0 Fixed #3609 (clarifyCondition delivers false positives when using Windows-Traits as a template) 2012-04-08 18:07:11 +02:00
Daniel Marjamäki 6360afdcfa CheckOther: Use reportInconclusiveError to report inconclusive error 2012-04-08 10:47:01 +02:00
PKEuS b0f571b25c Fixed #3383: If there is an empty line between subsequent break statements, only issue a message for inconclusive checking 2012-04-05 10:38:29 +02:00
PKEuS c1fc7a2218 Improved CheckOther::checkComparisonOfBoolWithInt and CheckOther::checkComparisonOfBoolExpressionWithInt:
- Added support for comparision of bool constant with number constant (-> fixed #1877) and integer variable with boolean expression
- Moved a check from checkComparisonOfBoolWithInt to checkComparisonOfBoolExpressionWithInt
- Generalized some patterns
- Made error message more accurate concnerning the "neither 0 nor 1" part.
- Reduced number of Token::Match calls
2012-04-02 15:45:51 +02:00
PKEuS 033e4a2c1f Fixed #3676. 2012-04-02 11:21:04 +02:00
PKEuS 989ac449e4 Made invalidPointerCast message inconclusive for casting from floating point type* to char* (Fixed #3639) 2012-03-25 12:55:39 +02:00
Daniel Marjamäki 1d95416840 astyle formatting 2012-03-25 11:51:59 +02:00
Daniel Marjamäki ca6a93816b Merge pull request #89 from HeisSpiter/master
Merged two checks to get a better one regarding sizeof
2012-03-25 02:38:04 -07:00
PKEuS e4d92055e7 Improved sizeofCalculation check:
- Bailout on expanded macros for conclusive checking
- Support for more operators
- Removed indendation counter
Improved checkSignOfUnsignedVariable:
- Made the patterns more generic
- Improved verbose error message (-> Fixed #3080)
2012-03-25 11:32:00 +02:00
Pierre Schweitzer 2b5ddb7858 Merge the strncmp & malloc sizeof checks into a more generic test that handles several cases where sizeof is misused, or could be misused 2012-03-23 21:47:13 +01:00
PKEuS e938235385 Store functions which are declared but not implemented in the function list of the containing scope -> Fixed #3679
Refactorizations:
- Simplified some code
- Improved condition in findVariableType to reduce unnecessary comparisions of empty strings.
2012-03-23 17:59:51 +01:00
Pierre Schweitzer ec44967e13 Add a new test to check improper sizeof usage. It's for the moment limited to malloc calls. 2012-03-21 21:13:09 +01:00
PKEuS 4587a1a06c Fixed recently introduced assertion failure in debug mode 2012-03-15 21:06:24 +01:00
PKEuS b6057a1148 Improved CheckOther::checkIncorrectLogicOperator:
- Added a lot of additional pattern
- Rewrote error messages to make them more understandable and better fitting to the situation. (Fixed #3664)
- Cleanup in unit tests
Improved message of static string comparision check
2012-03-15 20:38:28 +01:00
PKEuS 7cfffc9c9d Improved CheckOther::checkIncorrectLogicOperator:
- Implemented automatic swapping of conditions and operands
- Added several patterns
- Added support for conditions outside of if/while
2012-03-12 19:06:30 +01:00
PKEuS 6f164de609 Improved static string comparision check: Implemented #3214
Fixed false negative on argument count of fnprintf/snprintf when first variable argument is a string. (#3655)
Uncommented call of virtualDestructorError in getErrorMessages in checkclass.h
Refactorizations:
- Rearranged code in checkother.h to make ordering more consistent and to increase encapsulation of private data
- Replaced some single-token-patterns
2012-03-11 11:01:39 +01:00
Daniel Marjamäki 3f1ab5af9b charvar: dont write warning about char type array index when array is small and the full valid range is accessible with the char type. If there are out of bounds access then, it is not because the type of the variable. 2012-03-10 12:19:28 +01:00
Simon Martin 190cba519d Fixed shadowing warning 2012-03-09 08:06:58 +01:00
PKEuS ef6e381d47 Improved bitwise on boolean check to make it working on more code patterns
Refactorizations in checkother.cpp:
- Make use of symboldabase instead of: indentation counters, manual detection of variable declarations
- Removed some indexing variables to reduce calls to tokAt and the numbers given to this function
- Use tok->nextArgument() to jump to a specific argument
2012-03-03 21:14:20 +01:00
PKEuS 1ef99e2f21 Improved checkautovariables:
- Added support for checking a few more code patterns
- Simplified code by using more information from the symboldatabase
- Moved redundant part of c_str-check to checkstl
Two fixes according to output of pvs studio in testsimplifytokens.cpp
2012-03-01 18:38:20 +01:00
Ettl Martin 2ac907b40a fixed compiler warning (gcc-4.6.1) 2012-02-27 14:13:34 +01:00
PKEuS 1747813a8b Added check for invalid pointer casts (#1255)
Detect sign extension problems when variable is a reference (#3637)
Refactorizations:
- Tokenizer::getFiles returns a reference instead of a pointer, because its guaranteed that no nullpointer is returned
- Remove signed/unsigned in one step for "%type% signed|unsigned"
- Fixed recently introduced compiler warning in symboldatabase.cpp
2012-02-26 11:56:32 +01:00
Zachary Blair 9d75641ef8 Fixed #3598 (false positive: (error) Memory pointed to by 'a' is freed twice.) 2012-02-16 21:03:38 -08:00
Zachary Blair 8f827aa65f FIxed #3581 (double free false positive when exception rethrown) 2012-02-04 11:24:40 -08:00
PKEuS d5c2c7db88 - Moved checkCatchExceptionByValue from CheckOther to CheckExceptionSafety
- Fixed false positive: throw outerCatchVar; in inner catch is now correctly handled
- Added eTry and eCatch to Scope::isLocal -> Scopes inside catch are now detected by symbol database
2012-02-02 16:17:42 +01:00
PKEuS 22c1ce8a68 Fixes for #3480 and #3568. 2012-01-31 15:49:34 +01:00
Edoardo Prezioso bb703f4d0b Fixed: (warning) Found simple pattern inside Token::Match() call. 2012-01-28 20:31:12 +01:00
PKEuS 91a01a0a0d - checkUnsignedDivision checks for variable/variable (inconclusive). General bailout for if-statements.
- Make use of recently implemented symboldatabase functions (catch-support, reference-support)
- Other refactorizations
2012-01-28 12:32:28 +01:00
Zachary Blair 589a2461bd Fixed ticket #3550 (false positive: (error) Memory pointed to by 'pxpm' is freed twice) 2012-01-24 22:43:44 -08:00
PKEuS 36479499e7 - Solved FIXME: Made detection of code that is no pointer-dereference more robust, uncommented code (checknullpointer.cpp)
- Removed more indendation level counters
- Make use of symbol database more often
- Other refactorizations
2012-01-21 19:55:32 +01:00
PKEuS 96ae010e48 - Correctly set Scope::function variable in symboldatabase
- Refactorizations
- Fixed some cppcheck warnings
2012-01-21 10:08:09 +01:00
Zachary Blair 0415444e28 Merge branch 'master' of github.com:danmar/cppcheck 2012-01-19 23:02:33 -08:00
Zachary Blair b89adff9fd Fixed Ticket #3300 (false negative: doublefree of pointer) 2012-01-19 22:59:54 -08:00
Daniel Marjamäki 525e7fba20 Fixed #3490 (False positive: sscanf with %c) 2012-01-18 23:57:08 +01:00
Stefan Weil 7607e4c68d Fixed #3519 (Wrong line number in warning charBitOpError) 2012-01-18 13:09:46 +01:00
PKEuS c294b15360 Removed more indendation counters. 2012-01-15 12:31:49 +01:00
Reijo Tomperi dd18f595b1 Fix #3516 (inaccurate warning: "An unsigned variable will always be positive" (unsigned n; if (n >=0);))
http://sourceforge.net/apps/trac/cppcheck/ticket/3516
2012-01-14 12:50:09 +02:00
Daniel Marjamäki 65ce55e675 Fixed #3472 (false positive: (error) Passing value 0 to log() leads to undefined result) 2012-01-08 12:07:25 +01:00
PKEuS eabdc9082e Fixed false positives related to %*[] in scanf format string (#3468) 2012-01-04 11:22:42 +01:00
PKEuS 621d43e9e4 Fixed #3461: Support for %m* on scanf-functions 2012-01-02 14:05:58 +01:00
Reijo Tomperi 8cae17fda8 Update year to 2012 2012-01-01 01:05:37 +02:00
Erik Lax 3d0c1a3301 Fix #3457 (Statement following goto can be executed)
http://sourceforge.net/apps/trac/cppcheck/ticket/3457
2012-01-01 00:11:03 +02:00
Reijo Tomperi 65b58bcb99 Partial fix to #3452 (ErrorLogger: complain/raise assertion when error message has extra newlines etc)
http://sourceforge.net/apps/trac/cppcheck/ticket/3452
Add assert for newlines.
2011-12-30 01:22:16 +02:00
Marek Zmysłowski dd8316474a Fixed #3335 (new check: warn about potential missuse of isgraph-like functions) 2011-12-29 08:08:37 +01:00
Reijo Tomperi 90e1a397a2 Refactoring: Remove duplicate function from tokenizer: code_is_c() -> isC() 2011-12-29 00:36:16 +02:00
Edoardo Prezioso bbac4f1faf Fix ticket #3451 (A (style) type warning witout message text). 2011-12-28 17:15:04 +01:00
Daniel Marjamäki 8e94e2261b Comparing bool with int: Fixed false positives 2011-12-23 19:11:51 +01:00
PKEuS 8213a15b2a improving checkSizeofForStrncmpSize 2011-12-23 18:11:34 +01:00
Daniel Marjamäki e9d697b636 Fixed #3419 (false positive: (style) Same expression on both sides of '&'.) 2011-12-23 16:08:53 +01:00
PKEuS 409364747c Fixed #3441 (segmentation fault of cppcheck (%: return ; ())) 2011-12-23 12:46:59 +01:00
Daniel Marjamäki df8504f0ea Clarify calculation: Fixed false positives when there are various function calls 2011-12-23 12:13:39 +01:00
Daniel Marjamäki fd0d9c8694 CheckOther: Added line break to make the code more readable 2011-12-20 20:54:14 +01:00
Daniel Marjamäki f8181df340 Fixed #3410 (Comparing bool against bool produces false positive) 2011-12-20 06:38:05 +01:00
PKEuS 6dc2a6e7ab Refactorized CheckUnusedVar 2011-12-18 20:15:41 +01:00
PKEuS 0205582161 Fixed #3327 (printf with std::string as parameter) 2011-12-18 19:41:21 +01:00
PKEuS f306246c7f Improved support for references and pointers in SymbolDatabase
Replaced several isPointer functions by Variable::isPointer function
Refactorizations & Make use of symbolDatabase more often
2011-12-17 19:04:03 +01:00
PKEuS 4abee3a345 Refactorings. Use reportError instead of reportInconclusiveError. 2011-12-17 11:39:20 +01:00
PKEuS a311904a0f Patch that fixes some bailouts for isEnabled('style') in both directions. Improved checkSizeofForNumericParameter's error message, made it 'warning', made it non-experimental. 2011-12-16 19:21:14 +01:00
PKEuS c9f5117cf5 Fixed #3407 (False positive: (inconclusive) Found duplicate branches for if and else. (inline assembler)) 2011-12-13 21:42:38 +01:00
PKEuS 91a0a071d0 Take symbol database into use or improve its usage in some checks. 2011-12-09 23:28:10 +02:00
PKEuS 97eecb78a7 Fixed #3381 (false positive: (style) Statements following return, break, continue, goto or throw will never be executed) 2011-12-07 18:20:52 +01:00
PKEuS 501d7ccb2d Optimize checkother.cpp by taking symbolDatabase into use. 2011-12-04 20:49:01 +02:00
PKEuS 1f438b0505 Fixed #3375 (Improve check: Detect unreachable code) 2011-12-03 11:43:23 +01:00
Daniel Marjamäki 69d3d4a17d Fixed gcc compiler warnings 2011-12-03 09:57:56 +01:00
Daniel Marjamäki 9a84c5845a Fixed #3373 (False posititive: incorrect %* handling in sscanf) 2011-12-02 17:09:32 +01:00
Richard Quirk d2c8b9be56 Fix possible null pointer dereference 2011-12-01 19:57:04 +01:00
Richard Quirk b2ea78543b Fix false positive with non-const function calls 2011-12-01 19:57:04 +01:00
Richard Quirk a880469c5a Refactor the same expression check
Work out if a function is inconclusive when creating the entry in the
Expressions class instead of when checking the counts at the end. Store
the result in a new bool flag in the ExpressionTokens helper struct.

The pointer to symbol database and ref to list of const functions are
temporarily stored in  the Expressions helper class to avoid passing
them in too on every endExpr(tok) call.

Use a const reference to ExpressionTokens in the check loop to avoid
repeating the it->second several times, which clarifies what that code
does.
2011-12-01 19:57:04 +01:00
PKEuS 5017646488 Coding fixes and refactorings 2011-12-01 19:43:51 +01:00
Daniel Marjamäki 93b21c6cc5 Fixed Visual Studio compiler warnings 2011-12-01 18:27:25 +01:00
Daniel Marjamäki 98480bf504 Fixed #3354 (Incorrect both sides of '||' expression match when using increment in expression.) 2011-12-01 17:46:33 +01:00
Daniel Marjamäki fddfd16758 checkDuplicateExpressions: validate tokens instead of string. Fix for my previous commit. 2011-12-01 17:43:29 +01:00
Daniel Marjamäki 31b576de3b Fixed #3334 (Test for same expression on both sides of '&' reports false positive) 2011-12-01 17:07:55 +01:00
Edoardo Prezioso 767413adad 1)internal check found a 'findmatch' with simple string argument;
2)Style: uniform 'while (...)' when inside it there's an assignment;
3)Replace '0' with 'NULL' where there's comparison with a pointer.
2011-12-01 12:04:47 +01:00
PKEuS ee3e10ea97 Fixed #3364 (Crash in printf parsing) 2011-11-30 20:23:29 +01:00
Daniel Marjamäki 0d48cd390b astyle formatting 2011-11-29 20:44:23 +01:00
Edoardo Prezioso 5c90c69ccf Fixed ticket #3366 (Build breakage) 2011-11-29 19:46:36 +01:00
Daniel Marjamäki b61c01c6a4 Fixed #3356 (false positive: (warning) Comparison of a boolean with integer that is neither 1 nor 0) 2011-11-29 18:14:57 +01:00
Daniel Marjamäki b538f49a6e Merge pull request #61 from richq/sameexpr
Fix for #3317 - same expression on both side of '&&' false positives
2011-11-29 08:50:02 -08:00
Daniel Marjamäki 522da8d258 sizeof for numeric constant : disabled check. see ticket #3179 2011-11-27 18:50:21 +01:00
PKEuS 71c8669261 Fixed #3311, #3313 and #3339 (printf format string false positives) 2011-11-27 07:29:09 +01:00
PKEuS 6b1594244e code cleanups and refactorings 2011-11-26 21:15:16 +01:00
Richard Quirk d28cf42d4c Fix ticket #3317 (same expression false positives)
Add a check for function calls that have no side effects. That means
known const methods and a list including strcmp, strlen, etc.

If the function is not known to be side effect-free then no style
warning is given.

Add test cases for the duplicate expressions.
2011-11-23 21:39:03 +01:00
Richard Quirk 511ac0ab1f Remove false positives for nested logic 2011-11-23 21:39:03 +01:00
Daniel Marjamäki 2e08c8c5b1 DJGPP: Fixed a few compiler errors by using std::size_t instead of size_t 2011-11-22 21:14:14 +01:00
Daniel Marjamäki 5b5ea29f23 Mismatching format string parameters. Made check experimental. See tickets #3311, #3313 and #3339 2011-11-21 07:31:06 +01:00
Richard Quirk 91713ffe84 Fix false positives for %[ in scanf 2011-11-20 16:48:54 +01:00
Edoardo Prezioso a32b05197d Change every 'tokAt(1)' to 'next()' and every 'tokAt(-1)' to 'previous()'.
Added a safety check to ensure that a 'previous()' call doesn't crash (not sure if it's needed or not).
2011-11-20 15:59:37 +01:00
Edoardo Prezioso 11dd3c09ce Change every 'tokAt(1)->' to 'next()->' because 'tokAt(1) == 0' is equivalent to 'next() == 0', hence the equivalent cppcheck crash. 2011-11-20 15:09:57 +01:00
Edoardo Prezioso 42e369a4b4 Change every 'tokAt(..)->link()' to 'linkAt(..)'. 2011-11-20 14:24:27 +01:00
Marek Zmysłowski 994f08fdf0 Fixed #886 (new check: wrong value passed to isgraph function) 2011-11-17 16:31:16 +01:00
Edoardo Prezioso 2c64d299ca Change every 'tokAt(...)->str()' to 'strAt(...)'. 2011-11-13 13:10:59 +01:00
Thomas Jarosch c010ca33a5 Run astyle 2011-11-09 20:34:58 +01:00
Daniel Marjamäki b7cc9779c4 Merge pull request #59 from richq/sameexpr
Improved same expression check for ticket #3274
2011-11-08 23:56:36 -08:00
Reijo Tomperi 7a294c1f79 Fix #3307 (Invalid format string/parameter mismatch warning)
http://sourceforge.net/apps/trac/cppcheck/ticket/3307
2011-11-09 00:16:37 +02:00
Richard Quirk d1bc8819f9 Fix for same expression separated by commas
The code branch tested by the previous check for && is now different, so
I've changed the test to use == instead. There was also a missing case
when the expression was followed by a comma instead of being preceded by
one.
2011-11-08 21:56:54 +01:00
Richard Quirk d5664dd6cf Improved %or% and & checks 2011-11-08 21:56:54 +01:00
Richard Quirk 4cb97edbaf Improved same expression check for ticket #3274
Expand the logic for the check for the same expression on both sides of
the || and && operators. Now expressions can be more complex, with the
"alt" variable helping to fudge operator precedence to avoid false
positives.
2011-11-08 21:54:42 +01:00
Daniel Marjamäki fa076598ad Fixed #3233 (false positive: (style) Checking if unsigned variable 'i' is less than zero.) 2011-11-06 18:24:37 +01:00
Edoardo Prezioso 6e2f2816de Improve same expression check: remove '%op%' pattern and add ',' for the same expressions as an argument inside a function.
Improve compound assignment simplification: use already defined 'isAssignmentOp' and extend the adding parenthesis to a generic operator, not only to the arithmetical ones. See: http://en.cppreference.com/w/cpp/language/operator_precedence
2011-11-06 14:35:53 +01:00
Daniel Marjamäki f092779a4d Fixed #3282 (Invalid report that an array index is of type char.) 2011-11-06 11:26:28 +01:00
Daniel Marjamäki e11c1f7975 Fixed #3265 (false positive: comparison of bool with nonzero integer) 2011-11-06 08:21:34 +01:00
Edoardo Prezioso 99463d3368 Improve same expression check: take count of operations and assignments before the same expression and add missing 'return' pattern to the struct member variable part of the check. 2011-11-05 22:25:01 +01:00
Daniel Marjamäki d4a8184339 Fixed #3251 (Redundant code: Found a statement that begins with numeric constant) 2011-11-05 20:28:52 +01:00
Richard Quirk a3f2c1e651 Improve for same expression on both sides of operator 2011-11-05 15:46:11 +01:00
PKEuS 0c469bae41 Fixed #3089 (New Check: Detect wrong usage of printf/scanf) 2011-11-05 07:29:53 +01:00
Edoardo Prezioso 4295439e53 Fixed ticket #3269 (Regression, I think it's somehow related to symbol database) 2011-10-31 15:05:52 +01:00
Edoardo Prezioso ba5909ef1d General code tweaking, nothing strange. 2011-10-31 02:24:59 +01:00
Edoardo Prezioso 4fc7e86d7d Fixed: with checkConst and checkVariableScope wanted still required "information" settings instead of "style". 2011-10-30 10:58:15 +01:00
Daniel Marjamäki 3c509589b5 use reportInconclusiveError instead of reportError if checking is inconclusive 2011-10-29 15:16:27 +02:00
Daniel Marjamäki f04210ad9f updated comment. removed a inconclusive condition, I don't think it's needed. 2011-10-29 12:52:46 +02:00
Daniel Marjamäki 6c02de151f strncmp sizeof: tweaked the check. 2011-10-29 12:27:19 +02:00
Daniel Marjamäki 8416768e03 Merge pull request #50 from richq/strncmp
Improved strncmp checks
 * strings are always the same
 * inconclusive: using sizeof(char *) as size parameter
2011-10-29 03:13:21 -07:00
Richard Quirk 45d0709ed5 Only run sizeof(char*) check if inconclusive is set 2011-10-29 11:59:24 +02:00
Richard Quirk c2d7824130 Move string comparison out of the report function 2011-10-29 11:52:19 +02:00
Edoardo Prezioso dd719b41bf Definitely check correctly 'sizeof %num%' when '%num%' has '-' sign. 2011-10-29 00:11:38 +02:00
Richard Quirk 665cdfabdc Warn when sizeof is used in strncmp ticket #2095
This checks for the case where the user thought sizeof(buf) gave the
size in bytes of 'buf' in code like the following:

  const char *buf = "Hello World";
  strncmp(buf, other, sizeof(buf));
2011-10-28 22:14:55 +02:00
Richard Quirk 90c7db15a0 Add check for comparison of identical string variables 2011-10-28 22:12:51 +02:00
Richard Quirk 4ba6ac7332 Add strncmp to the list of static string comparison functions 2011-10-28 22:12:51 +02:00
Thomas Jarosch 434fb933a8 Implement Token::findsimplematch und use it for simple patterns 2011-10-27 15:59:22 +02:00
Thomas Jarosch 54adb910ec Use Token::simpleMatch instead of Token::Match for simple patterns 2011-10-27 15:59:22 +02:00
seb777 de71c41379 Fixed Ticket 2144 (false negatives: Old Style Pointer Cast apply only on .cpp files) 2011-10-26 21:17:27 +02:00
Reijo Tomperi 3568b5a841 Improved memset with 0 bytes check. TODO done (unit test).
Patch from: PKEuS <philipp.kloke@web.de>
2011-10-22 23:34:10 +03:00
Edoardo Prezioso 91c6608175 Improve fix of #934 (be careful of macros code). 2011-10-22 20:43:42 +02:00
PKEuS 20179673ce Fixed #934 (new check: missuse of std::cout) 2011-10-22 17:12:52 +02:00
PKEuS ccf087d2ea checkMathFunctions: Refactoring the check 2011-10-22 12:31:47 +02:00
PKEuS ea02bd905a Fixed #3225 (Boolean comparison with string literals) 2011-10-18 21:37:03 +02:00
Thomas Jarosch a52b73f9f9 Fix #3208 (Simplify pointer to standard type, C only)
The symbol database is unavailable during token simplification
and &data[0] might return something completely different for C++.

Moved code_is_c() from checkOther to Tokenizer.
2011-10-16 08:09:57 +02:00
Daniel Marjamäki 6f8e42a5af changed the astyle formatting flags 2011-10-13 20:53:06 +02:00
Zachary Blair 82366918ff Fixed #2627 (switch case fall through: redundant strcpy) 2011-10-13 01:27:22 -07:00
Robert Reif af6a6f9c2d run astyle 2011-10-12 09:08:54 -04:00
Thomas Jarosch 849bee8437 [PATCH] Detect suspicious use of semicolon after 'if/for/while'
statements if they are followed by a {..} block.

Examples are:

for (int i = 0; i < 10; ++i);
{
   printf("i)";
}

or

if (i == 100);
{
   die("Wrong argument");
}

This new check is active if you enable inconclusive checks.
2011-10-11 08:41:39 +02:00
Zachary Blair fcf360825a Fixed #2955 (New check: Using && instead of &) 2011-10-10 10:11:17 -07:00
PKEuS 5f9b916dcc Fixed #2115 (new check: endless loop (unsigned comparison that is always true)) 2011-10-09 20:35:46 +02:00
Daniel Marjamäki 73fb6725e6 Readded CheckOther::bitwiseOnBoolean as inconclusive check 2011-10-06 22:01:48 +02:00
Daniel Marjamäki 09109f19f8 Removed CheckOther::bitwiseOnBoolean check. The reasons can be seen in my comments in ticket #3062. 2011-10-05 20:46:07 +02:00
PKEuS 494d3af3d1 Fixed #1877 (Be more strict about int vs. bool, part II) 2011-10-05 20:30:36 +02:00
Kimmo Varis 3cfe7ca1a7 Move "information" errors to "style" errors.
"information" severity is documented in lib/errorlogger.h as:

  Checking information.
  Information message about the checking (process) itself. These
  messages inform about header files not found etc issues that are
  not errors in the code but something user needs to know.

It IS NOT for errors in the code. All the current "information"-
severity errors fit nicely into description of the "style"-
severity.

We definitely need to separate processing information and actual
errors in the code. It is highly confusing for users to mix these
two different things. Hence all current "information" code error
messages are moved to "style" category.

Ticket: #3165 (Stop misusing the 'information' error severity!)
2011-10-05 20:44:00 +03:00
Robert Reif 2d717d77cd reduce false negatives for checking for CheckOther::checkSignOfUnsignedVariable() 2011-09-26 21:24:34 -04:00
Robert Reif 735ff11469 fix #3110 (false positve: style) Boolean result is used in bitwise operation. Clarify expression with parentheses) 2011-09-12 07:32:55 -04:00
Daniel Marjamäki 55230baf78 Fixed #3086 (false positive: Boolean result is used in bitwise operation.) 2011-09-11 09:46:01 +02:00
Philipp Kloke 2f62d180fe Fixed #1740 (Undefined Behavior: Divide by zero) 2011-09-10 16:12:53 +02:00
seb777 074ad10a30 fix #195 Unusual shift operation - check this kind of code
return x >> ! y ? 8 : 2;
2011-09-06 22:37:19 +02:00
Robert Reif b27bbea44a really fix #3079 (Spelling error in unsigned variable check 'never alwayw') 2011-09-05 09:48:59 -04:00
Robert Reif 2250a2dfc3 fix #3079 (Spelling error in unsigned variable check 'never alwayw') 2011-09-05 09:04:27 -04:00
seb777 5c7ed46e0c Following the discussion XX, replace the keyword C99 '_Bool' with the 'bool' keyword in the process of tokenization\nSee f29b7f9f08 2011-09-03 23:15:33 +02:00
Daniel Marjamäki d23c58d387 enable: break out 'performance' and 'portability' from the 'style' id. Ticket: #3074 2011-09-03 15:30:30 +02:00
Robert Reif f29b7f9f08 fix #3062 (false negative: Boolean variable is used in bitwise operation) 2011-09-02 17:19:06 -04:00
Robert Reif 2dd93dff75 move unused variable checks from checkother to checkunusedvar 2011-08-19 14:35:25 -04:00
Robert Reif 9fbef3ca7b fix #3011 (new check: when first comparison is true, the 2nd comparison is always true) 2011-08-19 13:28:37 -04:00
Daniel Marjamäki a735790e77 using boolean result in bitwise operation. fix false positive for '.. != (char *) &x' 2011-08-19 18:55:20 +02:00
Daniel Marjamäki 2dd1e290eb fixed false positives for the 'bitwise operator / comparison operator' check 2011-08-19 18:06:28 +02:00
Robert Reif eda9ff6fc5 refactor checkother to move error messages to follow check and rename some error functions to end in Error 2011-08-19 11:53:43 -04:00
Daniel Marjamäki 314d5f1e79 fixed false positive for 'using bitwise operation on boolean result' 2011-08-19 17:07:26 +02:00
Daniel Marjamäki c107fdd2d4 Fixed #3018 (false positive: (style) Suspicious condition (assignment+comparison), it can be clarified with parentheses) 2011-08-19 13:54:06 +02:00
Daniel Marjamäki 40b493e621 Improve check: Clarify condition (using boolean result in bitwise operation) 2011-08-19 13:40:54 +02:00
Daniel Marjamäki 0d7c80ef21 improved comment of previous commit 2011-08-19 07:28:15 +02:00
Daniel Marjamäki 4606251ce8 Fixed #3001 (False Positive: Redundant assignment to itself) 2011-08-19 07:23:11 +02:00
Daniel Marjamäki e5ff920ea9 Suspicious condition: Better handling when rhs is non-numeric 2011-08-19 00:56:15 +02:00
Daniel Marjamäki a7728fef48 New check: warn about such suspicious conditions: '(a & b == c)' 2011-08-19 00:15:20 +02:00
Daniel Marjamäki 4f962acf16 Fixed #3009 (Using numeric constants in kernel space code) 2011-08-16 20:16:33 +02:00
Robert Reif ad45ba718c convert CheckOther::checkCharVariable() to use symbol database 2011-08-14 10:39:45 -04:00
Robert Reif cd2c0fd9c8 convert CheckOther::checkSizeofForNumericParameter() to use the symbol database 2011-08-14 10:21:07 -04:00
Robert Reif 741eabba16 convert CheckOther::checkIncrementBoolean() to use the symbol database 2011-08-14 10:16:39 -04:00
Daniel Marjamäki 003956e42e Fixed #2982 (false positive: using char type as array index (using string as key)) 2011-08-09 17:03:22 +02:00
Daniel Marjamäki 8a6a999f09 Fixed #2979 (Improve message: using char as array index) 2011-08-08 19:35:11 +02:00
Kimmo Varis cfcfa3f000 Use "enabled" list for the style checking.
Settings-class currently enables style checking via dedicated
boolean attribute. All other CLI's enable-options are handled
through the enable-list. This commit moves style-check enabling
to use the enable-list.

Main advantage is the consistency how options are handled/stored
in the Settings class. Which also unifies using them for the other
code. You need to enable certain type of checks? Use the
addEnabled()-method. You want to check if certain type of checks
are enabled? Use the isEnabled()-method.
2011-08-07 10:28:52 +03:00
Robert Reif 85b2bd21dc fix #2968 (new check: testing if unsigned variable is less than 0) 2011-08-06 19:23:09 -04:00
Moritz Lipp 8d68981119 Fixed #2793 (SIGABRT on filenames without file extension) 2011-07-31 18:35:28 +02:00
Robert Reif 2f4aee2923 fix missing else in patch that added support for unused const local variables 2011-07-30 07:16:59 -04:00
Robert Reif cb4282d69a use simpleMatch where possible in checkother.cpp 2011-07-29 22:37:05 -04:00
Daniel Marjamäki dc629b4c39 Fixed 'possible null pointer dereference' warning messages 2011-07-28 08:12:21 +02:00
Daniel Marjamäki d2c0e5e7e6 Fixed #2821 (New Check : bool pointer null truth assignment) 2011-07-28 07:28:24 +02:00
Robert Reif 9a4447c835 add support for unused const local variables 2011-07-24 12:09:59 -04:00
Simon Martin 539c2e5acb Fixed #2932 (segmentation fault of cppcheck ( i / i )) 2011-07-24 09:06:38 +02:00
Robert Reif c3c3eb74e8 fix #2929 (Additional Unused variable check) 2011-07-21 18:37:37 -04:00
Robert Reif ed30edf9d3 simplify CheckOther::checkIncorrectLogicOperator() by using more pattern matching 2011-07-18 07:34:49 -04:00
Robert Reif 76d0872c0d made #2827 fix more generic by adding more ops and using pattern matching rather than string matching 2011-07-17 16:28:00 -04:00
Robert Reif 4149617978 fix #2827 to use numeric comparisons 2011-07-16 23:05:35 -04:00
Robert Reif 430d22032d fix #2827 condition always false or true) 2011-07-16 22:06:23 -04:00
Zachary Blair 997a3652d2 Fixed #2822 (New check: Duplicate break statements in switch) 2011-07-14 17:12:56 -07:00
Robert Reif 270b2b1772 fix #2904 (Memory leak not detected when creating a new class instance) 2011-07-14 19:15:59 -04:00
Daniel Marjamäki 0007351ef4 spell check of error message. contant => constant 2011-07-05 19:59:58 +02:00
Daniel Marjamäki 8cd2c3115e Fixed #2866 (Detect sign extension bugs) 2011-07-05 18:41:27 +02:00
Greg Hewgill 657b003dc8 Fix spelling error in warning identifier 2011-07-05 19:54:23 +12:00
Robert Reif b32b2c6d87 add support for checking unused std::string local variables 2011-07-02 19:25:10 -04:00
Robert Reif 301e59cea0 fix false positive for unused local class/struct variable 2011-07-01 08:45:29 -04:00
Robert Reif 18e6509c5d add support in CheckOther::functionVariableUsage() for checking structures that are declared with struct keyword 2011-07-01 07:42:20 -04:00
Robert Reif 3225c9dd9b cleanup isStatic in CheckOther::functionVariableUsage() 2011-07-01 07:15:59 -04:00
Robert Reif 7826b5e22d add support for detecting unused function variables of type class or struct 2011-06-30 21:58:11 -04:00
Daniel Marjamäki 97d47fa20e Fixed #2805 (false positive: [NotAssigned1.cpp:5]: (style) Variable 'y' is not assigned a value) 2011-06-08 19:54:01 +02:00
seb777 e06b2419a4 fix #2786 (new check: Using sizeof with numeric constant)
Add unit test and improve check with negative constant because in cppcheck %num%
means 'integer'
2011-05-28 16:40:01 +08:00
seb777 287840e6bc fix #2786 2011-05-25 01:45:58 +08:00
Daniel Marjamäki 144d811e54 Fixed #2780 (false positive: variable p is not assigned a value 'int p[2]; *p = 0;') 2011-05-11 18:58:25 +02:00
Robert Reif 2db67863a7 #2700 (common logic or cut and paste errors) make duplicate branches inclnclusive 2011-05-08 13:22:42 -04:00
Daniel Marjamäki 3629f953f0 Fixed #2770 (False positives (scope can be reduced / variable is assigned value that is never used)) 2011-05-06 21:16:01 +02:00
Zachary Blair 46645ab327 Fixed #2722 (new check: statement that is always true (strcmp)) 2011-04-25 22:45:27 -07:00
Daniel Marjamäki 46afc54c10 astyle formatting 2011-04-20 06:41:26 +02:00
Daniel Marjamäki 8417c4eb28 const parameter: Added comment to reduce false negatives for various classes in the std namespace 2011-04-20 05:40:06 +02:00
Daniel Marjamäki 68e7003bb1 Fixed #2734 (False positive: reports 'should be passed by reference' for std::streamoff) 2011-04-19 20:07:54 +02:00
Robert Reif c238b1bba6 fix #2730 (The same expression on both sides of != is OK when checking for NaN) 2011-04-18 19:20:27 -04:00
Robert Reif 56212370d1 add check for same expression on both sides of an operator (part of #2700) 2011-04-10 10:25:02 -04:00
Robert Reif 434783530a Merge branch 'master' of github.com:danmar/cppcheck 2011-04-10 09:57:34 -04:00
Robert Reif 4a50aca7b2 fix a bug in checkDuplicateBranch where removed type info like signed/unsigned was not checked for difference 2011-04-10 09:57:09 -04:00
Daniel Marjamäki e5d43d4ed2 Renamed Settings::stupid to Settings::experimental 2011-04-10 15:55:08 +02:00
Daniel Marjamäki 30ee9ba6e4 Added Settings::stupid flag that can be used to hide checking that generates false positives. 2011-04-10 13:23:45 +02:00
Daniel Marjamäki f284c3a11f CheckOther: Code cleanup. Use %oror% 2011-04-10 11:52:12 +02:00
Daniel Marjamäki ec5ddb16b4 CheckOther: Use %op% in CheckUnsignedDivision 2011-04-10 11:31:04 +02:00
Robert Reif 66de41b313 partial fix for #2700 (common logic or cut and paste errors) 2011-04-09 17:05:27 -04:00
Robert Reif d22fcb8184 fix bug in previous commit: fix #311 (add detection of duplicated if else-cases) 2011-04-09 16:34:16 -04:00
Robert Reif 7e403ae210 fix #311 (add detection of duplicated if else-cases) 2011-04-09 15:14:01 -04:00
Daniel Marjamäki 7d93bfb42e Refactoring: Use Token::isArithmeticalOp instead of hardcoded conditions 2011-04-09 18:50:05 +02:00
Daniel Marjamäki 8e711b7925 Refactoring: there was almost duplicate functions 'isOp'. Created a new Token::isOp function instead. 2011-04-08 19:40:22 +02:00
Daniel Marjamäki 4ac3c7fe3b clarify calculation: fixed false negative for 'int x = a - b ? 2 : 3' 2011-04-04 21:33:16 +02:00
Daniel Marjamäki 63acd9bb3e Clarify calculation: Added warnings for << and >> 2011-04-03 22:12:22 +02:00
Daniel Marjamäki 29422b8552 clarify precedence: made the short message shorter 2011-04-02 17:27:36 +02:00
Daniel Marjamäki 855b01cd5a Clarify precedence 'a*b?c:d' : warn for addition, subtraction and division also. tried to clarify the message more 2011-04-02 11:43:20 +02:00
Daniel Marjamäki b8cda19ca6 Fixed #2655 (false positive: (warning) Redundant code: Found a statement that begins with numeric constant) 2011-03-30 21:57:01 +02:00
Stefan Weil 0e4cf7a2d6 Spell checks 2011-03-30 16:44:16 +02:00
Daniel Marjamäki 27506b4231 Fixed #2661 (False positive: object destroyed immediately) 2011-03-20 09:55:26 +01:00
Daniel Marjamäki 3e1df1b463 Clarify condition: re-enabled check 2011-03-13 12:16:55 +01:00
Daniel Marjamäki ed11a9e3cb Fixed #2639 (False positive: confusion between struct and function) 2011-03-13 08:38:40 +01:00
Daniel Marjamäki 29ab409af5 Merge branch '2390b' of https://github.com/elfring/cppcheck into elfring-2390b 2011-03-12 11:58:24 +01:00
Greg Hewgill 2716b856f4 throwing an exception is a valid immediate exit from switch 2011-03-12 07:27:31 +13:00
Robert Reif 79f0fe7d1c refactor symbol database and checks to use list of Scope rather than list of Scope pointers 2011-03-10 19:43:29 -05:00
Daniel Marjamäki db48158b28 Suspicious condition: Added new check for conditions that contains assignment+comparison 2011-03-09 22:20:14 +01:00
Daniel Marjamäki 06abaf95a5 Incorrect string compare: reduce noise when using strncmp on string literal 2011-03-07 21:37:13 +01:00
Greg Hewgill b9df7735c5 switchCaseFallThrough is now an inconclusive check 2011-03-06 13:06:30 +13:00
Greg Hewgill 8c245cfd2f switchCaseFallThrough is now a coding style check (ticket #2623) 2011-03-06 09:43:27 +13:00
Greg Hewgill 70fcbe94f4 avoid warning on first case (in case there are declarations before first case) 2011-03-05 00:45:58 +13:00
Greg Hewgill 8c1d7ef316 avoid crash when else condition doesn't have braces to link 2011-03-05 00:45:58 +13:00
Greg Hewgill ad45737805 more gracefully handle unexpected blocks inside switch 2011-03-05 00:45:57 +13:00
Greg Hewgill a532a9690e full implementation of switch case fall through 2011-03-05 00:45:57 +13:00
Greg Hewgill 93ea774484 initial simplistic implementation of switchCaseFallThrough 2011-03-05 00:45:57 +13:00
Zachary Blair e1b2569b81 Fixed #432 (New check: wrong usage of ! operator in conditions) 2011-02-27 12:30:22 -08:00
Daniel Marjamäki 85b1ea21cf Fixed #2590 (segmentation fault of cppcheck ( {}int )) 2011-02-19 09:56:17 +01:00
Daniel Marjamäki dfba4b7332 Fixed #2585 (segmentation fault of cppcheck (CheckOther::clarifyCalculation)) 2011-02-17 21:30:59 +01:00
Daniel Marjamäki 2657d36d03 Fixed #2502 (False positive: redundant assingment of object to itself) 2011-02-12 14:27:07 +01:00
Sébastien Debrard f5ed52b84b fix #2569 check postfix increment on boolean 2011-02-11 23:38:23 +01:00
Daniel Marjamäki 5175e4ff3f Fixed #2535 (false positive: (style) Variable 'A' is not assigned a value) 2011-02-09 19:20:44 +01:00
Erik Lax aeae5a867d Fixed #2550 (Bad substr/strncmp comparison) 2011-02-08 19:49:29 +01:00
Daniel Marjamäki 5640845a17 Fixed #2498 (False positive: redundant assignment) 2011-02-04 21:08:42 +01:00
Kimmo Varis 7d73b523be Clarify few verbose messages.
Dan pointed out to me earlier that he wants both short- and
verbose messages to be independently understandable. So modifying
some verbose messages to be easier to understand without the short
message.
2011-02-04 11:10:24 +02:00
Raphael Geissert f8e2d50e6f Use Token::simpleMatch where no special patterns are needed 2011-02-02 13:27:02 -06:00
Raphael Geissert 8d5863133c Use Token::simpleMatch where no patterns are used 2011-02-02 13:27:01 -06:00
Raphael Geissert cf2b6f7bc1 Remove useless spacing at the end of *Match strings 2011-02-02 13:27:01 -06:00
Raphael Geissert d592250284 Fix sizeof sizeof check to handle sizeof(sizeof type) 2011-02-02 11:49:32 -06:00
Daniel Marjamäki defeded4b5 Fixed #2529 (False positive: array 'req[3]' index 4 out of bounds) 2011-02-01 21:46:07 +01:00
Sébastien Debrard 078c36921d runastyle 2011-01-26 20:10:56 +01:00
Sébastien Debrard 3e7f29d6f9 fix #2510 Improve check 'sizeof for array given as function argument' 2011-01-26 20:08:06 +01:00
Sébastien Debrard 5d661d25a8 typo: message 2011-01-26 09:35:11 +01:00
Sébastien Debrard e82c190429 Merge branch 'master' of https://github.com/danmar/cppcheck
Conflicts:
	test/testother.cpp
2011-01-25 10:05:03 +01:00
Sébastien Debrard 4cf56dac2b Fix 2495 incorrect sizeof error message 2011-01-25 09:57:58 +01:00
Daniel Marjamäki a596a7a8fe Fixed #2494 (New check: clarify calculation when using ?: operator) 2011-01-24 21:40:49 +01:00
Sébastien Debrard c7b8bd543f fix ticket 155 - char array 2011-01-24 19:04:56 +01:00
Debrard Sébastien 27dce075e0 Fixed #155 (check size of a variable whose type is a sized array) 2011-01-22 19:21:56 +01:00
Robert Reif d73709a620 Symbol database: rename variables. ticket: #2468 2011-01-21 07:42:41 +01:00
Daniel Marjamäki ecac93ebed Fixed #2462 (false positive: (warning) Redundant code: Found a statement that begins with numeric constant) 2011-01-19 18:37:33 +01:00
Daniel Marjamäki 965c1a94fd Fixed #2475 (False positive in structure initialisation: The scope of the variable bits can be reduced) 2011-01-17 20:51:15 +01:00
Robert Reif 959e10cee5 Symbol database: renamed classes. ticket: #2468 2011-01-17 18:29:19 +01:00
Robert Reif bf9528558e Symbol database: pulled out classes into global scope. ticket: #2468 2011-01-17 07:21:59 +01:00
Zachary Blair 481907ef14 Fixed #2457 (CheckOther::checkIncorrectLogicOperator: hang if variable id is 0) 2011-01-16 13:57:29 -08:00
Daniel Marjamäki 93d1313186 Refactoring: Check if type is class/struct through symbol database 2011-01-16 19:57:29 +01:00
Daniel Marjamäki e6a1efa13b Fixed #2302 (Duplicate id 'unusedVariable') 2011-01-16 18:45:05 +01:00
Robert Reif d341b42b0c Symbol database: increased constness. ticket: #2468 2011-01-16 18:13:54 +01:00
Daniel Marjamäki bb2862bc97 fixed unit test 2011-01-15 21:04:20 +01:00
Daniel Marjamäki 94ebb24d3d Optimising: about 5% improvement with Visual Studio executable 2011-01-15 20:55:51 +01:00
Daniel Marjamäki 36c1807228 Fixed #2458 (false positive: (warning) Redundant code: Found a statement that begins with numeric constant) 2011-01-13 20:12:57 +01:00
Reijo Tomperi 226b605774 Change year 2010 -> 2011 in license texts. 2011-01-09 21:33:36 +02:00
Daniel Marjamäki d758929490 Fixed #2433 (strtol: false positive when strtol isn't used in function call) 2011-01-08 09:23:51 +01:00
Daniel Marjamäki 37b1f7c296 memsetZeroBytes: improved error message. ticket: #2421 2011-01-06 16:27:22 +01:00
Raphael Geissert 6ec4497919 [PATCH] Check for calls to memset() where 0 bytes are to be filled
Inspired by Silvio Cesare's work
2011-01-06 11:31:58 +01:00
Daniel Marjamäki 033e759c39 command line: added 'information' id to enable 2011-01-05 21:20:21 +01:00
Markus Elfring 3fc0317997 Bug #2390: Enclose the output of a variable name with quotes in "CheckOther::variableScopeError"
The variable name output was enclosed by quotation marks in the member
function "CheckOther::variableScopeError" and corresponding test functions.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
2011-01-03 05:15:20 +01:00
Zachary Blair 68700b3561 Fixed #2382 (Catching exceptions by value instead of reference) 2010-12-31 12:48:24 -08:00
Zachary Blair d11b5163b7 Fixed #2382 (Catching exceptions by value instead of reference) 2010-12-31 03:01:38 -08:00
Daniel Marjamäki fd27be2440 Fixed #2372 (internal error in logicaloperator check (varid=0)) 2010-12-29 10:07:28 +01:00
Kimmo Varis e8b81f909d Change 'Scope of variable'-message to information message. 2010-12-27 16:48:03 +02:00
Daniel Marjamäki 660de98c0c Fixed #2365 (Internal error: Token::Match called with varid 0) 2010-12-27 14:06:32 +01:00
Kimmo Varis ad89a84796 Improve error message about overlapping buffers for s[n]printf().
See forum thread:
https://sourceforge.net/apps/phpbb/cppcheck/viewtopic.php?f=3&t=192&start=0
2010-12-26 23:44:01 +02:00
Daniel Marjamäki ecad249ae2 Fixed #2346 (False positive: pointer is assigned value that is never used. used here: 'pCol = pCol->GetNext()') 2010-12-25 19:17:53 +01:00
Daniel Marjamäki 81c5576eb4 Misused scope objects: Don't use this check if the checked file is a pure C file. Ticket: #2352 2010-12-25 08:43:52 +01:00
Daniel Marjamäki 0f9415a5fb Fixed #2330 (unreadVariable error for a fstream object when only extraction operator (>>) is used) 2010-12-21 19:02:00 +01:00
Robert Reif 244974a61a unused variables: fixed false negatives with the help of the symbol database. ticket: #2317 2010-12-21 08:13:40 +01:00
Daniel Marjamäki f73cce9eca Fixed #2317 ((style) Variable is allocated memory that is never used) 2010-12-20 18:31:16 +01:00
Daniel Marjamäki 02892499d2 Fixed #2286 (Variable 'ownKilled' is assigned a value that is never used) 2010-12-19 18:27:31 +01:00
Robert Reif a2aa601899 CheckOther: Use SymbolDatabase. Ticket: #2318 2010-12-18 20:35:40 +01:00
Robert Reif f2d69acbfd Symbol database: reuse in CheckOther. Ticket: #2318 2010-12-16 19:04:47 +01:00
vBm 46a11183a5 Fixed some spelling mistakes 2010-12-15 18:45:53 +01:00
Daniel Marjamäki b25e6ff24c Fixed #2279 ((style) struct of union member is never used) 2010-12-05 18:33:53 +01:00
Daniel Marjamäki 93ebdca313 Fixed #2264 (False positive: variable assigned value that is never used) 2010-12-03 18:45:49 +01:00
Daniel Marjamäki 8118e4755a Fixed #2263 (False positive: variable assigned value that is never used) 2010-12-02 20:08:05 +01:00
Kimmo Varis 8d8945ac57 Improve "Assert statement 'varname' -message.
Modifying the message so that we have short message and verbose
message. As discussed in dev-forum:
https://sourceforge.net/apps/phpbb/cppcheck/viewtopic.php?f=3&t=192
2010-11-29 20:12:21 +02:00
Kimmo Varis 564d896715 Run astyle. 2010-11-28 23:29:06 +02:00
Kimmo Varis 85735e382f Improve the 'suspicious code sizeof sizeof' -message.
As discussed at dev-forum:
https://sourceforge.net/apps/phpbb/cppcheck/viewtopic.php?f=3&t=192
2010-11-28 14:20:46 +02:00
Kimmo Varis 2c3f9a9dce Small fix to error message.
Start with capital letter and no space in beginning.
2010-11-27 20:41:08 +02:00
Kimmo Varis 837605b05b Ticket #2239 (Too long "short" message about function parameter passing)
Have a proper short message for the parameter passing warning and
improve the message.
2010-11-27 10:46:34 +02:00
Zachary Blair 215cb5ac8d Fixed #2162 (false positive: Mutual exclusion over ||) 2010-11-21 00:06:43 -08:00
Daniel Marjamäki d021cd9074 VS: fixed compiler warning. Ticket: #2200 2010-11-20 11:28:47 +01:00
Daniel Marjamäki fd64a7e683 Mutual exclusion: Disable this check until #2162 is fixed. 2010-11-20 07:43:07 +01:00
Daniel Marjamäki d250cb5aa2 Fixed #2206 (False positive: variable is assigned a value that is never used (array initializers)) 2010-11-15 17:53:55 +01:00
Daniel Marjamäki 7b3e7f6467 Fixed #2205 (False positive: variable is assigned a value that is never used (assigning to dereferenced casted pointers)) 2010-11-15 17:30:07 +01:00
Zachary Blair 36d80d6eaa Fixed #2058 (Warn for unused variable when only doing malloc/free) 2010-11-14 17:37:36 -08:00
Daniel Marjamäki ba7a3b376e Fixed #2167 (Drop linefeeds from error messages) 2010-11-11 19:54:43 +01:00
Daniel Marjamäki 27b7638901 Visual Studio: Fixed compiler warnings about assignment in condition 2010-11-08 17:29:08 +01:00
Daniel Marjamäki 06ec4d9a84 GCC: Fixed compiler warnings about sign-conversion 2010-11-04 20:52:20 +01:00
Zachary Blair 10a4dde105 Fixed #2137 (Invalid mutual exclusion report) 2010-11-04 00:10:25 -07:00
Daniel Marjamäki 14803643ca empty string test: Removed this check 2010-11-03 17:56:14 +01:00
Daniel Marjamäki 19f809c9b4 Unused variables: better handling of '= %var% ++'. Ticket: #2160 2010-11-02 20:01:12 +01:00
Daniel Marjamäki 1e866c3235 Visual Studio: Fixed compiler error 2010-10-31 11:42:45 +01:00
Daniel Marjamäki bc283d8b99 Uninitialized variables: Broke out the checking into separate file 2010-10-31 12:31:11 +01:00
Daniel Marjamäki df8a93bf97 Null pointers: Broke out the checking into separate file 2010-10-31 11:51:25 +01:00
Daniel Marjamäki 558899dc74 Variable usage: Fixed false negative that I introduced when simplifying compound assignments 2010-10-31 09:34:25 +01:00
Daniel Marjamäki 9435fde551 Tokenizer: Added function for checking if code is Java/C# 2010-10-28 18:51:55 +02:00
Daniel Marjamäki 995e39200b Fixed #2130 (Invalid possible NULL pointer dereference, etc.) 2010-10-27 20:20:10 +02:00
Daniel Marjamäki fc98bcdcb2 Fixed #2141 (false positive: possible null pointer dereference) 2010-10-27 19:42:47 +02:00
Daniel Marjamäki fd153eac02 Fixed #2142 (false positive: null pointer dereference (throw)) 2010-10-27 19:38:42 +02:00
Daniel Marjamäki 9370f552ac Fixed #2134 (sizeof(*list) complains of null pointer dereference) 2010-10-26 18:26:02 +02:00
Daniel Marjamäki 893f7fa347 Fixed #2130 (Invalid possible NULL pointer dereference, etc.) 2010-10-26 17:40:30 +02:00
Daniel Marjamäki bdd6d6d53d null pointer: use simplified token list in the 'check and deref' checking 2010-10-25 21:05:43 +02:00
Daniel Marjamäki 132aa8d0c4 uninitialized variables: fixed fp when analysing loops 2010-10-25 20:56:15 +02:00
Daniel Marjamäki 026514db1a Fixed #2127 (null pointer dereference after condition (SRD nr 522)) 2010-10-25 19:43:54 +02:00
Zachary Blair 26afb04dc5 Fixed #2105 (Incorrect operator: mutual exclusion over ||) 2010-10-24 18:14:21 -07:00
Daniel Marjamäki 8f707e5e46 Null pointers: Better handling of loops 2010-10-24 18:51:14 +02:00
Daniel Marjamäki 40aeb17738 uninitialized variables: handling loop bodies. end upon '}' 2010-10-24 18:28:25 +02:00
Daniel Marjamäki 6601de7681 uninitialized variables: refactoring handling of loop bodies 2010-10-24 18:26:59 +02:00
Daniel Marjamäki b66d3c8858 Fixed #2125 (uninitialized variable: better handling of for loops) 2010-10-24 18:12:48 +02:00
Daniel Marjamäki 13b8544436 Visual Studio: Fixed compiler warning. Ticket: #2123 2010-10-24 11:52:28 +02:00
Daniel Marjamäki f8c02718a5 Activated checking of .java and .cs files 2010-10-19 21:54:15 +02:00
Daniel Marjamäki 92a1e9e76e Severities: Added 'warning' and 'performance' severities. No changes to the command line options nor to the XML format. Ticket: #2106 2010-10-17 14:41:00 +02:00
Debrard Sebastien fb928b6778 Fixed #2018 (Postfix Operators) 2010-10-14 19:17:40 +02:00
Pete Johns afe52fa9f2 Fixed MSVC++ compiler warning (pointers are not bools) 2010-10-13 21:19:18 +11:00
Pete Johns 52e16454fa Removed redundant code.
localClassDefinition is no longer required due to improved isIdentifierObjectType() in commit fbd3d92.
2010-10-13 20:48:37 +11:00
Pete Johns fbd3d92aa9 Fixed #2084 (False positive: object destroyed immediately (struct and function with same name))
Tightened up class definition matching so as not to match C-style struct tags.
2010-10-13 20:37:53 +11:00
Debrard Sebastien 1a4e3dcc44 increment check 2010-10-12 19:54:39 +02:00
Daniel Marjamäki 3dfcbfc0e0 assignment in assert: modified the error message to better explain the reason why the warning is given. 2010-10-11 17:59:08 +02:00
Zachary Blair d9967d4fd2 Fixed #2079 (detect side effects in assert) 2010-10-10 13:05:06 -07:00
Daniel Marjamäki 5cc7c9dcf7 Parameter passed by value: updated error message so it mentions the reason. 2010-10-10 14:12:11 +02:00
Daniel Marjamäki a3367874d9 Fixed #1778 (false negative: nullpointer dereference (std::string pointer)) 2010-10-09 07:57:34 +02:00
Pete Johns 4bf9ff26ea Fixed 2071 (false positive: object destroyed immediately (when using '= { ... }'))
Simplified check within CheckOther::checkMisusedScopedObject() as a result.
2010-10-04 08:16:11 +11:00
Daniel Marjamäki cd8ef1cded Revert "temporarily disable the 'object destroyed immediately' message"
This reverts commit fa94312c9a.
2010-10-03 18:05:08 +02:00
Daniel Marjamäki fa94312c9a temporarily disable the 'object destroyed immediately' message 2010-10-03 16:59:13 +02:00
Pete Johns 78795dc3ac Fix false positive: Misused Scope Object does not pick constructors of local class declarations.
It does pick up if there is an unused construction within the function, though.
2010-10-02 22:59:04 +10:00
Pete Johns 365b1bed1a Fixed false positive: checkMisusedScopedObject no longer errors on calls to function objects. 2010-10-02 21:25:16 +10:00
Pete Johns b72b699b76 Fixed false-positive: Object is referenced on construction
struct Foo {
        void bar() {
        }
    };

    void fn() {
        Foo().bar(); // This caused a false-positive
    }
2010-10-02 20:26:29 +10:00
Pete Johns 3f72d3a877 Check misused scope object does not pick local class method.
Also fixed mistyped withinFuntion ->withinFunction.
2010-10-02 20:12:52 +10:00
Pete Johns 0017655f55 Added test for functor false-positive [passing]
Also removed typedef's following danmar's review and renamed isClassresults -> isClassResults to make more clear.
2010-10-02 18:45:24 +10:00
Pete Johns 6e0ef3eda2 Fixed #1132 (Detection of misused scope objects in functions)
Emits error in the form:

    [useless_lock.cpp:18]: (error) instance of "Lock" object destroyed immediately

    ...if an instance of a class or struct is unnamed and therefore destroyed
    straight after creation.

    Only checks for misused scope objects within functions.

    Optimised isIdentifierObjectType() by memoizing.
2010-10-02 14:22:26 +10:00
Pete Johns 50c2fa9ab0 Revert "Fixed #1132 (Detection of misused scope objects)"
This reverts commit c6acdccfa0.
2010-10-01 20:52:16 +10:00
Pete Johns c6acdccfa0 Fixed #1132 (Detection of misused scope objects)
Emits error in the form:

    [useless_lock.cpp:18]: (error) instance of "Lock" object destroyed immediately

...if an instance of a class or struct is unnamed and therefore destroyed
straight after creation.

Removed "internal error" from token.cpp, since in this case varid would be NULL.
2010-10-01 20:30:21 +10:00
Daniel Marjamäki 415cbc63c3 Fixed #2066 (false positive: uninitialized variable when initializing through function pointer) 2010-09-27 19:26:09 +02:00
Daniel Marjamäki 4c98a7e67b Optimisation: Removed unused and slow code. The code was added to fix #1225 but it is now redundant. 2010-09-24 20:56:21 +02:00
Daniel Marjamäki 8950beac37 Optimisation to make the CheckUninitVar::parse slightly faster 2010-09-23 21:40:08 +02:00
Daniel Marjamäki f843678a07 Redundant conditions: some refactorings
* removed the 'redundant null pointer' check. sometimes it's unsafe to delete NULL pointer. and this check doesn't point out errors anyway.
 * moved the 'redundant condition' check for set::remove. Moved it to CheckStl.
2010-09-16 18:49:23 +02:00
Daniel Marjamäki cfbc06c8b6 removed 'empty catch block' check. to avoid false positives we'll need to check if it is bad with an empty catch block (dead pointer/undefined behaviour/etc) 2010-09-05 13:27:58 +02:00
Daniel Marjamäki a2b4e5641f Fixed #2010 (missing continue in switch check ?) 2010-09-04 14:24:45 +02:00
Daniel Marjamäki 9415423352 Fixed #2017 (false positive::struct or union member 'Base::m_ui' is never used) 2010-09-04 11:21:34 +02:00
Daniel Marjamäki 190a0040b7 Null pointer: Fixed false positive 2010-09-02 21:08:58 +02:00
Daniel Marjamäki 8ff1e71b22 Fixed #2004 (False positive in 'variable assigned a value but is never used' check) 2010-08-31 20:58:37 +02:00
Daniel Marjamäki 1d78b5072d Fixed #1996 (False positive for 'Variable foo is assigned a value that is never used') 2010-08-31 20:33:28 +02:00
Daniel Marjamäki df87ce9e04 Fixed #1945 (False positives when a for loop header is in a macro) 2010-08-26 21:57:48 +02:00
Daniel Marjamäki 72916caee6 Reverted 7398453cb0 2010-08-15 21:25:14 +02:00
Sbastien Debrard 7398453cb0 Refactoring of obsolete functions checks. Ticket: #1940 2010-08-15 21:22:33 +02:00
Zachary Blair c8087d3389 Fixed #162 (Initialisation of a variable by itself) 2010-08-14 21:34:04 -07:00
Daniel Marjamäki 2e249670b3 dangerous scanf usage: Added verbose information 2010-08-14 18:35:48 +02:00
Daniel Marjamäki 5846630fa9 Added scanf check. Modified patch submitted by Eric Sesterhenn 2010-08-14 15:15:12 +02:00
Daniel Marjamäki 764ce99c6f Performance: Refactoring CheckOther::nullPointerStructByDeRefAndChec to make it faster 2010-08-07 21:00:17 +02:00
Daniel Marjamäki 029613d4c4 Fixed #1923 (False positive: Possible null pointer derefence in else if) 2010-08-07 19:59:56 +02:00
Daniel Marjamäki ed4f1164a1 Fixed #1894 (unreadVariable false positive with const references) 2010-08-07 15:53:51 +02:00
Daniel Marjamäki c395e51389 New check: look for calculation inside sizeof 2010-08-06 22:57:10 +02:00
Daniel Marjamäki 12217461a2 gcc: fixed some more -Wsign-conversion warnings 2010-08-06 22:37:48 +02:00
Daniel Marjamäki faa713e7b5 gcc: Fixed some compiler warnings when using -Wsign-conversion. Ticket: #1487 2010-08-06 19:40:54 +02:00
Daniel Marjamäki 65f7bcbfa5 null pointers: fixed TODO assertion - dereference pointer in function call and then checking that it is not NULL 2010-08-05 08:19:36 +02:00
Daniel Marjamäki 6f228033d2 null pointers: fixed todo test case 2010-08-05 08:06:19 +02:00
Daniel Marjamäki 239d264432 uninitialized variables: fixed false negatives when uninitialized pointer data is read 2010-08-04 21:13:40 +02:00
Daniel Marjamäki a274cb1015 cleanup headers 2010-07-31 08:52:28 +02:00
Daniel Marjamäki 9c17114668 Fixed #1893 (false positive: dereferencing null pointer (try/catch)) 2010-07-24 14:27:18 +02:00
Daniel Marjamäki 1b7796791b Variable scope: Improved verbose information (see also 7ef0296) 2010-07-23 12:29:21 +02:00
Daniel Marjamäki 7ef0296f97 --verbose: added more information for the variableScope error message. 2010-07-19 11:30:01 +02:00
Daniel Marjamäki bbf2c6c6e6 Fixed #1880 (false positive: Uninitialized array (initialized in subfunction)) 2010-07-19 10:03:54 +02:00
Robert Reif e86e8449f8 Variable usage: better handling of pointer aliasing. Ticket: #1729 2010-07-12 09:50:18 +02:00
Robert Reif 566b4b4beb Variable usage: fixed false positive reported in #1729 2010-07-08 08:42:34 +02:00
Robert Reif 2d6dfa57e1 Variable usage: Better aliasing support (Ticket #1729) 2010-07-08 08:00:50 +02:00
Daniel Marjamäki a1793edabe Fixed #1825 (*log(0) error) 2010-07-07 09:03:40 +02:00
Daniel Marjamäki 4ebf4caf66 Variable usage: only warn about variables that have variable id > 0 2010-07-07 08:50:34 +02:00
Daniel Marjamäki 2bb07a55bd Fixed #1803 (False positive: unused variable: this) 2010-07-07 08:39:18 +02:00
Daniel Marjamäki a107cd1b59 Fixed #1729 (False positive: variable is assigned a value that is never used (pointer aliasing)) 2010-07-07 08:26:24 +02:00
Daniel Marjamäki c811acaa50 Fixed #1818 (False positive: Dangerous usage of strncpy (copying a constant string)) 2010-07-05 12:45:39 +02:00
Zachary Blair 5ea28ccbba Fixed #157 (Forgetting to put a break in a switch statement) 2010-06-30 00:10:30 -07:00
Daniel Marjamäki c6888845a0 Fixed #1815 (False positive: uninitialized variable when using ? operator) 2010-06-30 08:28:34 +02:00
Robert Reif 4668359b51 Fixed #1808 (false positive: uninitialized variable with multiple assignment) 2010-06-29 08:38:24 +02:00
Daniel Marjamäki ad0908cb3f Fixed #1808 (false positive: uninitialized variable with multiple assignment) 2010-06-25 19:39:30 +02:00
Robert Reif 2a1edff77f Fixed #1812 (false negative: functionVariableUsage doesn't support static variables) 2010-06-24 17:00:32 +02:00
Robert Reif 74e48d4bb1 Fixed #1732 (False positive: Variable not assigned a value (pointer to pointer)) 2010-06-23 06:54:14 +02:00
Robert Reif a5b45a7f83 Fixed #1807 (false positive: Variable is not assigned a value (casting function parameters)) 2010-06-22 17:04:11 +02:00
Robert Reif bdd28b47aa Fixed #1799 (false positive: Variable is assigned a value that is never used) 2010-06-21 18:12:01 +02:00
Daniel Marjamäki 4cd3e8fdc0 Refactoring: Reduced copy/pasted code 2010-06-20 19:03:59 +02:00
Nicolás Alvarez df3d98a7c2 Fix typos in sizeofsizeof error message. 2010-06-19 17:16:14 -03:00
Daniel Marjamäki 82b63dd736 Fixed #1633 (tokenizer: simplifyKnownVariable: improved handling of arithmetic) 2010-06-19 14:00:45 +02:00
Robert Reif 7dba21858a simplify the alias handling in the checking of variable usage. Ticket: #1729 2010-06-16 18:00:21 +02:00
Zachary Blair ae2a02ad93 Applied review suggestions for Ticket #920 2010-06-15 22:03:38 -07:00
Zachary Blair efefceabae Fixed #920 (new style check: find empty catch blocks) 2010-06-14 23:45:46 -07:00
Robert Reif 98ae660260 Fixed #1792 (false positive: Variable 'test' is assigned a value that is never used) 2010-06-14 15:46:57 +02:00
Daniel Marjamäki cb7e9fbec1 Fixed #1776 (False Negative: Unitialized array) 2010-06-14 08:36:34 +02:00
Robert Reif 3d2c28a524 Fixed #1784 (false positive: Variable is not assigned a value) 2010-06-10 07:21:47 +02:00
Robert Reif 00dcec47ac Variable usage: read variable when using syntax '..=*(p);' 2010-06-08 18:26:14 +02:00
Daniel Marjamäki 472bd9dabe Fixed #1726 (False negative: null pointer dereference in switch block) 2010-06-06 12:15:31 +02:00
Robert Reif 4c4844b722 Fixed #1723 (Variable assigned value which is never used but is thrown) 2010-06-03 07:05:57 +02:00
Daniel Marjamäki cb43168d81 Fixed #1720 (segmentation fault of cppcheck) 2010-06-02 18:10:32 +02:00
Daniel Marjamäki 8ead23fc91 CheckOther::nullConstantDereference: Fixed cppcheck warning message - tok may become null 2010-06-02 18:06:37 +02:00
Daniel Marjamäki 28ad69e4b3 Refactoring of CheckOther::nullConstantDereference 2010-06-02 17:53:45 +02:00
Daniel Marjamäki 37ae4692bb Uninitialized variables: fixed false negative when using uninitialized variable inside malloc call 2010-05-30 10:30:51 +02:00
Daniel Marjamäki 1ec49430e3 Uninitialized variables: better handling when uninitialized variables are used in function calls 2010-05-30 09:31:10 +02:00
Daniel Marjamäki d3ed1c8960 Refactoring uninitialized variables (checking variable declarations) 2010-05-30 08:02:39 +02:00
Daniel Marjamäki 406cbda563 Uninitialized variables: better handling of struct variables 2010-05-30 07:55:11 +02:00
Robert Reif 176b41caa5 Fixed #1709 (char buffer that is only accessed with pointers is marker not assigned) 2010-05-26 19:22:35 +02:00
Daniel Marjamäki 88e9a4ade6 Fixed #1704 (false negative: null pointer dereference) 2010-05-26 19:16:42 +02:00
Robert Reif 048733a15e false positive: Variable is assigned a value that is never used 2010-05-23 10:41:05 +02:00
Daniel Marjamäki 75c9355e9a Added some multipass checking for the uninitialized variables. It is still experimental. You can activate it with the '--test-2-pass' switch. Some more refactorings are needed to make it truly usable, the main thing is to make it thread safe. 2010-05-21 19:35:18 +02:00
firewave 2bced1d90c Avoid some Visual Studio warnings 2010-05-18 19:19:15 +02:00
Daniel Marjamäki 6edb2e77b4 Refactoring: Removed Severity::possibleStyle 2010-05-16 14:43:42 +02:00
Daniel Marjamki 972046c4bd Added test CheckOther::sizeofsizeof. Inspired by #1682 2010-05-15 14:06:45 +02:00
Daniel Marjamäki 7c52c8683d Fixed #1662 (false positive: Data is allocated but not initialized, when using sprintf) 2010-05-09 07:48:52 +02:00
Robert Reif be35b72c7e Fixed #1660 (false positive: Variable is assigned a value that is never used, when using cast) 2010-05-09 07:15:40 +02:00
Daniel Marjamäki 2901434773 Fixed #1658 (false negative: uninitialized pointer usage) 2010-05-08 19:23:46 +02:00
Daniel Marjamäki bd22a18dc1 Refactoring: Changed 'possible style' to 'style' 2010-05-08 09:49:01 +02:00
Zachary Blair 21b7eb61f5 Fixed #959: (new check: wrong usage of fflush()) Simplified and set severity to error 2010-05-06 23:08:10 -07:00
Robert Reif 4c95264d29 Fixed #1647 (False positive: buffer is not assigned value (assigned through alias)) 2010-05-05 17:31:07 +02:00
Daniel Marjamäki 612be2557b Fixed #1646 (False positive: array access after return cannot have default loop value) 2010-05-04 20:02:47 +02:00
Robert Reif 7ce70777a4 Fixed #1643 (Variable usage (pointer is assigned but never used)) 2010-05-04 17:28:03 +02:00
Robert Reif eb276346c5 Fixed #1639 (False positive: unused variable value (pointer aliasing)) 2010-05-04 17:26:09 +02:00
Zachary Blair 707d27f3d8 Fixed #959 (new check: wrong usage of fflush()) 2010-05-03 23:14:45 -07:00
Robert Reif 6eb16e0f16 Fixed #1640 (False negative: Unused value (variable is assigned but never read)) 2010-05-01 21:15:14 +02:00
Robert Reif 4014bd234f Unit testing: Improved test coverage for variable usage checking 2010-05-01 09:26:47 +02:00
Robert Reif 1fa1ff8d14 Fixed #1636 (Fix false positive with strncpy termination check) 2010-04-30 21:36:48 +02:00
Robert Reif 5738f34872 Fixed #1622 (False positive: buf is not assigned a value (pointer aliasing)) 2010-04-30 18:11:51 +02:00
Robert Reif 70d475f8c2 Fixed #1622 (False positive: buf is not assigned a value (pointer aliasing)) 2010-04-29 07:10:50 +02:00
Daniel Marjamäki cccccff96f Fixed #1629 (False negative: null pointer derefence not detected 'c[0] = 0') 2010-04-28 22:07:39 +02:00
Robert Reif f0018100e1 Variable usage: Use variable id instead of variable name to identify variable 2010-04-27 05:05:32 +02:00
Daniel Marjamäki cda6fdb73d astyle formatting 2010-04-25 14:56:04 +02:00
firewave 52b84963e6 Fixed Access Violation with --enable=style when no tokens exist 2010-04-25 12:35:09 +02:00
Daniel Marjamäki eb82a89758 ExecutionPath: Better handling of if 2010-04-25 11:55:57 +02:00
Daniel Marjamäki a15e25f9fe Fixed #1571 ('C-style pointer casting' should not be reported for C files) 2010-04-24 16:46:09 +02:00
Daniel Marjamäki f3bea249ac Removed the check for unreachable code. The g++ warning -Wunreachable-code is recommended instead. This closes #1603 (break after a return or goto should not be an error in a switch statement). 2010-04-24 14:30:45 +02:00
Robert Reif 2bdcf3b5b2 variable usage: refactoring the checking 2010-04-24 09:45:03 +02:00
Zachary Blair 680a470741 Fixed #1564 (CppCheck does not recognise redundant IF) 2010-04-22 01:21:54 -07:00
Zachary Blair c26e619b23 Fixed #855 (Refactoring: move conditions into checks) 2010-04-20 23:38:25 -07:00
Robert Reif d851b4a3d4 Fixed #1607 (false positive: variable is assigned a value that is never used) 2010-04-17 14:23:29 +02:00
Daniel Marjamäki b19113426f Unused struct member: Fixed false positives 2010-04-17 11:16:05 +02:00
Robert Reif 61b5a21ac9 Fixed #1605 (false positive: uninitialized variable) 2010-04-16 16:25:57 +02:00
Robert Reif 45573ad101 Fixed #1607 (false positive: variable is assigned a value that is never used) 2010-04-16 15:57:09 +02:00
Daniel Marjamäki c718a7c595 astyle: Update to astyle 1.24 2010-04-15 20:08:51 +02:00
Robert Reif 01aa414f32 Fixed #1253 (improve check: uninitialized variable not found when using reference) 2010-04-15 18:44:52 +02:00
Reijo Tomperi 35d2a27b9c Update copyright year in all source files 2010-04-13 22:23:17 +03:00
Daniel Marjamäki 8373a6d4cb astyle formatting 2010-04-13 19:30:51 +02:00
Zachary Blair bd7dc9946e Fixed #1530 (possible new check: strlen return value versus zero.) 2010-04-13 19:30:25 +02:00
Daniel Marjamäki e9b4ea44a2 Refactoring: Disable inconclusive checks. They can still be activated for debugging/testing purposes 2010-04-10 14:05:33 +02:00
Daniel Marjamäki f77dbbb14b Fixed some false positives for unused struct members 2010-04-09 19:55:41 +02:00
Daniel Marjamäki 38a28e28ec Fixed #1581 (False positives 'The scope of the variable x can be reduced') 2010-04-09 16:53:27 +02:00
Reijo Tomperi 5aa88ee5a2 Fix vs warnings. Apply patch from kidkat. 2010-04-06 21:35:21 +03:00
Martin Ettl 4bc325f077 #ticket 1513: added sqrt() support 2010-04-05 20:20:20 +02:00
Reijo Tomperi 93d195aa0f astyle fix 2010-04-05 21:12:43 +03:00
Martin Ettl f895ab9a0d Merge branch 'master' of git@github.com:danmar/cppcheck 2010-04-05 20:08:21 +02:00
Martin Ettl fe7c6aed9f #ticket 1513: added pow() support 2010-04-05 20:07:53 +02:00
Reijo Tomperi 04b38e5428 astyle fix 2010-04-05 20:57:54 +03:00
Martin Ettl 218c18496d #ticket 1513 added fmod() support 2010-04-05 19:45:33 +02:00
Martin Ettl d4923e2a92 added atan2() check to ticket #1513 2010-04-05 19:35:56 +02:00
Daniel Marjamäki 61e1c4183f Uninitialized variables: better handling of 'a[b[..]]' when b is not initialized 2010-04-05 09:04:30 +02:00
Daniel Marjamäki d26a2cfc16 Uninitialized variables: Detect reading uninitialized data through array/pointer variable 2010-04-05 08:38:26 +02:00
Daniel Marjamäki abceff497b Refactoring: some refactoring of ExecutionPath. The foundError was removed. No automatic bailout of all checks are made when errors are found. 2010-04-04 11:24:52 +02:00
Daniel Marjamäki 78852b08ab Fixed #1566 (false negative: uninitialized variable) 2010-04-04 09:17:53 +02:00
Reijo Tomperi be598757a1 Fix segmentation fault when calling with --errorlist and add a testcase for it. 2010-04-03 22:53:06 +03:00
Daniel Marjamäki 5f9e14e242 Borland C++: Fixed compiler error 2010-04-03 07:51:40 +02:00
Reijo Tomperi 93d4851040 astyle fix 2010-04-02 22:17:09 +03:00
Martin Ettl 0c2f4831d8 #ticket #1513 added asin() support 2010-04-02 20:59:39 +02:00
Martin Ettl c391a03db6 added acos() check to ticket #1513; added testcases for MathLib::toDoubleNumber(), now double conversion of zeros is handled correctly; changed assertEquals() function of testsuite parameters from unsigned int to double. This is needed to avoid overflow of unsigned int by comparing negative floating point values. 2010-04-02 20:23:37 +02:00
Martin Ettl 9788333ee9 added log10() check, for checking about parameters passed to mathfunctions that do not make sense 2010-04-02 19:17:41 +02:00
Daniel Marjamäki 8b5aae9adb astyle formatting 2010-04-02 07:32:03 +02:00
Daniel Marjamäki 0cad22314e Reverted 'astyle fix'. Those changes are not in sync with my astyle configuration/setup. 2010-04-02 07:30:58 +02:00
Martin Ettl 193aa7d1d3 astyle fix 2010-04-02 02:21:53 +02:00
Martin Ettl b5fb01c202 ticket #1513 new check: Detecting obviously wrong math call arguments passed to math functions) 2010-04-02 02:19:38 +02:00
Daniel Marjamäki a68d8dbc77 Fixed #1549 (false positive: uninitialized variable) 2010-03-31 20:20:51 +02:00
Daniel Marjamäki c3edc5fd89 Fixed #1148 (improve check: usage of uninitialized variables) 2010-03-28 21:27:06 +02:00
Robert Reif 62d2845014 Fixed #1492 (false negatives: array index out of bounds) 2010-03-28 15:56:13 +02:00
Raphael Geissert c0e09c4cb3 Fixed #1511 (false negative null pointer deref when dereferencing pointers to constants) 2010-03-26 16:44:46 +01:00
Daniel Marjamäki e911d1f1df doxygen updates 2010-03-17 22:16:18 +01:00
Daniel Marjamäki 235404077f Fixed #1501 (false positive: Variable 'n' is assigned a value that is never used) 2010-03-16 19:25:10 +01:00
Daniel Marjamäki 15d67a2369 Fixed #1503 (False positive for uninitialized variable) 2010-03-16 19:09:37 +01:00
Daniel Marjamäki 30d3418b11 doxygen: added more comments for CheckNullPointer and CheckUninitVar 2010-03-13 21:42:59 +01:00
Daniel Marjamäki 7f42ed3ad0 Fixed #1472 (false positive: Data is allocated but not initialized: service) 2010-03-07 09:08:52 +01:00
Daniel Marjamäki 6ca4b008d0 null pointer: Fixed better error message for 'possible null pointer' + removed redundant check in our Tokenizer. 2010-02-28 07:26:50 +01:00
Daniel Marjamäki 0b2ad2164f Fixed #1442 (false positive: getting offset instead of dereferencing a null pointer) 2010-02-22 21:30:21 +01:00
Daniel Marjamäki e4a685c6e9 Fixed #1430 (void foo(int nb)) 2010-02-21 08:02:44 +01:00
Daniel Marjamäki a25cdd63b6 Refactored the CheckOther::functionVariableUsage 2010-02-21 07:05:44 +01:00
Daniel Marjamäki 375d2b1fcd astyle formatting 2010-02-18 19:55:47 +01:00
Daniel Marjamäki b59d79c303 readded checks for unused variables and unreachable code that were removed in 42c608b6f0 2010-02-18 18:45:13 +01:00
Daniel Marjamäki 9394816fcf Refactoring: Use std::string instead of const char * 2010-02-14 19:58:17 +01:00
Reijo Tomperi b52fa9451f Fix #1385 (False positive: unsigned division)
http://sourceforge.net/apps/trac/cppcheck/ticket/1385
This also fixes a bug in setVarId(). "unsigned int a" didn't get varid,
untill later when unsigned was simplified away.
2010-02-12 22:24:06 +02:00
Monika Lukow 2d5d060514 Fixed #1094 (Improve check: unusual pointer arithmetic: 'ch+str') 2010-02-07 21:44:11 +01:00
Daniel Marjamäki 0d18050b55 Fixed #984 (improve output if strncpy is followed by strncat) 2010-02-05 17:35:18 +01:00
Daniel Marjamäki 1b9afc82a4 Reverted 4f30468c80. There was false positives such as #1335 so please fix them and then re-commit. 2010-02-01 19:46:51 +01:00
Monika Lukow 4f30468c80 Fixed #1094 (Improve check: unusual pointer arithmetic: 'ch+str') 2010-01-31 11:42:02 +01:00