Commit Graph

1115 Commits

Author SHA1 Message Date
PKEuS 42fcb04d0c Moved checks related to boolean type (not condition checking!) from checkother into new file 2013-04-10 09:25:50 -07:00
PKEuS 4e6d105cbd Added support for complex patterns to CheckOther::checkIncorrectStringCompare() 2013-04-09 09:16:35 -07:00
XhmikosR 8ac9b8e7a9 remove duplicate ";" and fours dots 2013-04-09 17:49:09 +02:00
PKEuS eb2962792f Implemented support for move constructors:
- Changed behaviour of Token::function - is now also set for declarations
- Resolved TODO in testclass.cpp
- removed redundant code in Scope::findFunction - it is safe to call nextArgument() on functions without arguments
- Use Token::function in checkother.cpp
2013-04-04 10:53:55 -07:00
PKEuS 4fc92f4c27 Fixed mistake in verbose message. 2013-03-29 11:27:54 -07:00
XhmikosR 945319d804 Add missing space in error message and break a long line. 2013-03-25 20:03:07 +01:00
PKEuS 37ac86dec9 Fixed #4666: Implemented proper variable scope checking for switch statements 2013-03-23 03:28:33 -07:00
PKEuS d9f7042992 Fixed false negative #4663 2013-03-18 08:17:53 -07:00
PKEuS 1e66e0b931 Fixed false negative #4657 2013-03-15 05:00:51 -07:00
PKEuS 14feaa8d39 Refactorizations:
- Fixed lots of cppcheck messages about functions that can be const or static
- Fixed possible nullpointer dereference message in symboldatabase.cpp
- Replaced tokAt(+-1) by next()/previous()
2013-03-12 07:42:00 -07:00
Ettl Martin 3d1cdd0eec #4645 implemented correct range according manpage of usleep(). 2013-03-11 17:38:03 +01:00
Ettl Martin bb115573f7 #4645 implemented new check: (POSIX) argument of function usleep() too big. 2013-03-11 17:04:30 +01:00
PKEuS ca96aaa53b Avoided unnecessary usage of symbolDatabase->isClassOrStruct() 2013-03-05 06:55:31 -08:00
PKEuS 5bdb74ca40 Refactorized CheckOther::checkRedundantCopy():
- Iterate over variable list instead of token list
- Don't stop whole checking after bailing out (continue; instead of break;)
- Support types with qualified names
2013-03-05 06:53:09 -08:00
PKEuS 66a3555897 Implement initial support for Types in Symboldatabase:
- For each class/struct/union, a Type instance is added to SymbolDatabase::typeList.
- A scope is no longer created for declared but not defined types

Fixed name detection for classes when they are declared like this: "class ::Foo::Sub {..."
2013-03-05 04:33:38 -08:00
Ettl Martin c9b519bcd1 improved check: checkCastIntToCharAndBack. The check now handles (cin.get() != EOF) patterns. 2013-03-04 14:25:35 +01:00
PKEuS dc65667cec Fixed message about unused variable introduced in last commit 2013-03-03 10:46:01 -08:00
PKEuS 8a18f9ec3b Rewrote CheckOther::checkVariableScope() 2013-03-03 10:35:33 -08:00
PKEuS 5c1a05dcbe Refactorizations in CheckOther:
- Make CheckOther::checkCastIntToCharAndBack() work for multiple variables at once
- Improved messages of CheckOther::checkSuspiciousSemicolon() and CheckOther::checkPipeParameterSize()
2013-03-03 09:54:44 -08:00
PKEuS d78c06dc3f Replaced _settings->isEnabled("style") by _settings->isEnabled("warning") wherever warnings are issued 2013-03-03 02:41:59 -08:00
PKEuS 0105f8223c Simplified several Token::Match/simpleMatch calls when match string consists of a single pattern
Fixed two CheckInternal error messages
2013-03-01 03:42:04 -08:00
PKEuS 7283152d58 Fixed MSVC warning - removed unused variable/function declaration. 2013-02-28 12:51:48 -08:00
PKEuS 670c4de8a9 Changed behaviour of Token::is*Op() functions:
- Rename Token::isOp() to Token::isConstOp() (indicating that the operator does _not_ modify the input variables)
- Create new Token::isOp(), returning true also for ++, -- and assignment operators
- Make Token::isExtendedOp() returning also true for all assignment and ++/-- operators
2013-02-28 12:50:29 -08:00
Ettl Martin 8d682233d0 Implemented new check (Ticket #160): Storing getc() retun value in char variable and comparing to EOF. 2013-02-27 21:02:12 +01:00
Daniel Marjamäki df55ce14a0 Fixed #4503 (False positive: Incomplete statement (std::vector<int> v{1};)) 2013-02-24 10:00:03 +01:00
Daniel Marjamki 5c7e1cf9ff Fixed #4387 (false positive 'constStatement' in 1.57) 2013-02-23 16:26:25 +01:00
Daniel Marjamäki 1c584208b4 Fixed #4329 (False duplicateBranch when branches use conditionally defined macros) 2013-02-18 17:18:33 +01:00
Ettl Martin 73e2a8fdb5 Merge branch 'master' of github.com:danmar/cppcheck 2013-02-17 17:34:44 +01:00
Ettl Martin f451dd1137 #3521 implemented new check: wrong buffersize to pipe() function provided. 2013-02-17 17:33:32 +01:00
PKEuS 89cf24f23f Refactorization: use Function::nestedIn instead of Function::functionScope->functionOf, which is valid even if the function implementation is not seen. 2013-02-16 01:43:16 -08:00
PKEuS 7b3493322d Fixed crash when running cppcheck on itself introduced in previous commit 2013-02-15 11:17:14 -08:00
PKEuS 44887df04f Fixed false positive redundantAssignment when calling function in assignment (#4513) 2013-02-15 09:40:34 -08:00
PKEuS ccd95d1749 Make redundantAssignment message inconclusive when printed on global variables to avoid false warning on semaphores/mutexes (#4467) 2013-02-15 09:01:10 -08:00
PKEuS 017b4a8a7f Treat references like global variables in CheckOther::checkRedundantAssignment() as they might refer to such. (#4425) 2013-02-15 08:09:31 -08:00
Frank Zingsheim 213d31b360 Fixed #4547 (Improve check: Duplicate conditions in 'if' and related 'else { if'.)
Local fix in CheckOther::checkDuplicateIf()
2013-02-12 21:43:12 +01:00
Daniel Marjamäki 1e550f9fdf Reverted fix for #4547: It causes fp. See #4573 2013-02-12 16:13:08 +01:00
Ettl Martin dade326a99 #4566 implemented new check: redundantGetAndSetUserId on posix systems 2013-02-11 20:26:27 +01:00
Andrew C. Martin bd0d9b9639 fix misspellings & gcc v3.4.6 warnings
1.  fix typos / misspellings
 - Fix misspelling within comments, variable/function names, stdout messages
 - changes the name of an error code: ```stlBoundries``` changed to ```stlBoundaries```.  Alias old name (```stlBoundries```) to the new one.

2.  fix gcc v3.4.6 32bit & 64bit warnings

 - fixes gcc v3.4.6 warnings, except for those in tinyxml and "-Wmissing-declarations" makefile warnings
 - in Preprocessor::handleIncludes(), replace a ```vector <bool>``` with ```stack<bool>``` (see ```vector<bool>``` warning below).
   - this is the only ```vector<bool>``` in the codebase
 - ```vector <bool>``` is actually a case of template specialization, and is not recommended, according to the following links:

http://stackoverflow.com/q/6461487
http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2160.html
http://stackoverflow.com/q/670308

 - in the codebase before and after this change, testrunner SEGVs in a number of places on gcc v3.4.6, including ```Check::~Check()```, among others
   - fc42fc95 fixes this particular runtime issue for DJGPP & __sun
2013-02-09 23:43:09 -07:00
Stefan Naewe e786a2fa5e lib/checkother: fix compiler warning about unused member
Found by clang:

lib/checkother.cpp:2992:31: warning: private field '_symbolDatabase' is not used
      [-Wunused-private-field]
        const SymbolDatabase *_symbolDatabase;

Signed-off-by: Stefan Naewe <stefan.naewe@googlemail.com>
2013-02-08 12:15:42 +01:00
Robert Reif 42588e9729 Fixed #4535 (Simplify checks by caching symbol database Variable pointer in Token) 2013-02-06 06:39:58 +01:00
Frank Zingsheim b531195e08 Fixed #4547 (Improve check: Duplicate conditions in 'if' and related 'else { if'.)
Change tokenizer: "else if" -->> "else { if"
2013-02-04 21:12:12 +01:00
Daniel Marjamäki e2faed355b Fixed #4485 (False positive: Same expression of '-' when checking if float is inf) 2013-01-31 17:29:31 +01:00
Robert Reif ec1c86c152 Symbol database: more function/variable cleanup. Ticket: #4494 2013-01-31 06:41:18 +01:00
Daniel Marjamäki bc6d31c7c7 unsigned division: don't warn about 'unsigned char' because it is promoted to int. 2013-01-30 16:50:12 +01:00
Robert Reif 859793731d SymbolDatabase: Refactor findFunction handling. Ticket: #4494 2013-01-28 06:47:48 +01:00
Zachary Blair 8647e4c0d0 Fixed a false positive in #4109 (if (c == 1) c == 0; Isn't picked up) 2013-01-18 16:34:15 -08:00
Zachary Blair a1cbed3df8 Fixed #4109 (if (c == 1) c == 0; Isn't picked up) 2013-01-17 23:03:04 -08:00
Thomas Jarosch b1eec7c6b7 Small refactoring to compile more matches
*** Timing of the test suite ***
Four runs were used to calculate the average run time.

Before: ~1,103s
After: ~1,066s
Speed up: 3,35%

*** Timing of internal projects using STL ***
Before: ~8,301s
After: ~8,207s
Speed up: 1,13%

So the real world speed up is roughly 1%.
2013-01-17 10:26:03 +01:00
Thomas Jarosch c8b619ef86 Let the match compiler catch some more patterns 2013-01-16 22:05:28 +01:00
Andrew C. Martin 4a73c93750 Fix compiler warnings and comment/string typos
- fix g++ warning:

> lib/checkother.cpp:3779: warning: comparison between signed and unsigned integer expressions

 - fix suncc warning (see [everything2](http://everything2.com/title/C%252B%252B%253A+static+extern+%2522C%2522)):

> "lib/checkmemoryleak.cpp", line 578: Warning (Anachronism): Formal argument __compar of type extern "C" int(*)(const void*,const void*) in call to bsearch(const void*, const void*, unsigned long, unsigned long, extern "C" int(*)(const void*,const void*)) is being passed int(*)(const void*,const void*).

- prefer empty() / isEmpty() over "size() > 0" (cases not caught by stlSize)

- fix word misspellings (mostly comments, a few output lines)

  - Parenthesis => Parentheses (both variations were used in the codebase)

  - fix typo and wording ("never alwayw") in gui/test/data/benchmark/simple.cpp's CheckOther::unsignedPositive():

```
-  "An unsigned variable will never alwayw be positive so it is either pointless or "
+  "An unsigned variable can't be negative so it is either pointless or "
```
2013-01-16 07:37:07 -07:00
rofl0r de72ae9f45 sanitize the descriptive text displayed for "varFuncNullUB" 2013-01-14 18:11:16 +01:00
Daniel Marjamäki d46789ee4a varFuncNullUB: fixed false positive when non-variadic argument is NULL (#4482) 2013-01-14 06:44:52 +01:00
Daniel Marjamäki 2e56928834 Fixed #4482 (add test for UB due to usage of NULL in variadic functions) 2013-01-13 12:02:10 +01:00
Zachary Blair f3c3b7c910 Fixed #4405 (False positive: Memory in freed twice (throw)) 2013-01-05 19:02:19 -08:00
Reijo Tomperi 5d5f7085bf Updating year 2012 -> 2013 to .cpp and .h files and man page. 2013-01-01 18:29:08 +02:00
Thomas Jarosch 1f87c6d669 Fix crash on empty brackets
Relevant parts from the backtrace:
2012-12-28 20:16:51 +01:00
Daniel Marjamäki 31297cf7d3 Opposite inner conditions: Clean up copy/pasted code 2012-12-24 12:21:48 +01:00
Daniel Marjamäki 7e8019e474 Fixed #4403 (False positive 'Conversion of string literal <string> to bool always evaluates to true.' with BOOST_ASSERT) 2012-12-20 20:48:48 +01:00
PKEuS 068c695bd1 Fixed false positive when ternary operator is used: case A&&B?B:A: 2012-12-07 12:44:30 -08:00
PKEuS 0ac4c3baf4 New check: Find suspicious case labels like 'case A||B:' 2012-12-07 12:27:32 -08:00
PKEuS 65db8b8b9f Fixed #4229 2012-12-07 11:45:20 -08:00
Edoardo Prezioso 5101f3c029 Use the new pattern: '%comp%' where possible.
Change also the description comment of the Token::Match by adding the new pattern and the forgotten '%op%'.
2012-12-01 01:31:35 +01:00
Robert Reif 6b8e83a181 speed up checks by caching commonly looked up stuff in the symbol database (checkother, checkstl, checkunusedvar). Ticket: #4266 2012-11-16 06:50:49 +01:00
Daniel Marjamäki 79cd601ae7 Fixed #4356 (False positive at variable initialization) 2012-11-15 07:48:45 +01:00
Robert Reif 09eed80938 speed up checks by caching commonly looked up stuff in the symbol database (CheckOther). Ticket: #4266 2012-11-15 07:11:45 +01:00
Robert Reif 04d04c33c2 speed up checks by caching commonly looked up stuff in the symbol database (CheckOther). Ticket #4266 2012-11-14 18:12:33 +01:00
Robert Reif 6578b78077 speed up checks by caching commonly looked up stuff in the symbol database (checkIncorrectLogicOperator). Ticket: #4266. 2012-11-13 18:30:33 +01:00
PKEuS 3e03838025 Fixed verbose messages in CheckOther::incorrectLogicOperatorError which didn't contain all information of the short message. 2012-11-10 11:31:36 +01:00
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