Commit Graph

1091 Commits

Author SHA1 Message Date
PKEuS b23aebf2f0 Show redundantCopyLocalConst for STL types (#4331) 2014-03-27 11:15:17 +01:00
PKEuS 5083dd4273 Fixed two visual studio warnings 2014-03-24 18:14:23 +01:00
PKEuS 8d5be8c4a4 Fixed related issues to #5601 2014-03-22 22:35:20 +01:00
PKEuS 58c2f372b9 Fixed false positive when noreturn function is defined (#5601, second attempt) 2014-03-22 19:55:13 +01:00
PKEuS 77c871035b Fixed false positive when noreturn function is defined (#5601) 2014-03-22 18:57:19 +01:00
Daniel Marjamäki 7d2357de8d Refactoring. Use astIsFloat() 2014-03-22 18:42:29 +01:00
Daniel Marjamäki 54e7f34f4a Fixed #5584 (FP: Division by zero when function not declared) 2014-03-20 16:12:58 +01:00
PKEuS 2568baa473 #5528: Raise duplicateExpressionError on operators /, % and -. 2014-03-17 18:35:36 +01:00
PKEuS fab6b56360 Improved check (#5553): Detect stricmp(var.c_str(), var.c_str()) 2014-03-17 17:41:45 +01:00
PKEuS ebd0b43c4f Fixed #5382: False positive "scope can be reduced" when initializing two-dimensional array. 2014-03-17 12:34:39 +01:00
PKEuS d325d14b11 Fixed false positive #5535: Reference named like its type. 2014-03-17 12:01:39 +01:00
Daniel Marjamäki ce1aa1e011 Library: I had misunderstood const/pure a little so I corrected cfg and code 2014-03-14 20:08:34 +01:00
Daniel Marjamäki b2708987c3 Merge pull request #264 from thomasjfox/simplematch
Use simple match where possible
2014-03-14 17:51:45 +01:00
Daniel Marjamäki a929b2146e Improved checking of const functions in checkIncorrectLogicOperator 2014-03-14 17:37:53 +01:00
Thomas Jarosch 93341f4449 Use simple match where possible
Fixes these warnings found by "--enable=internal":

[lib/checkclass.cpp:972]: (warning) Found simple pattern inside Token::Match() call: "* *"
[lib/checkbufferoverrun.cpp:635]: (warning) Found simple pattern inside Token::Match() call: "."
[lib/checkbufferoverrun.cpp:1397]: (warning) Found simple pattern inside Token::Match() call: ";"
[lib/checksizeof.cpp:299]: (warning) Found simple pattern inside Token::Match() call: "."
[lib/checksizeof.cpp:301]: (warning) Found simple pattern inside Token::Match() call: ")"
[lib/checksizeof.cpp:303]: (warning) Found simple pattern inside Token::Match() call: "]"
[lib/checksizeof.cpp:318]: (warning) Found simple pattern inside Token::Match() call: ")"
[lib/checknullpointer.cpp:413]: (warning) Found simple pattern inside Token::Match() call: "delete"
[lib/checkio.cpp:1336]: (warning) Found simple pattern inside Token::Match() call: "> ("
[lib/checkstl.cpp:1509]: (warning) Found simple pattern inside Token::findmatch() call: ";"
[lib/checkstl.cpp:1512]: (warning) Found simple pattern inside Token::findmatch() call: ";"
[lib/checkstl.cpp:1594]: (warning) Found simple pattern inside Token::Match() call: "="
[lib/checkstl.cpp:1598]: (warning) Found simple pattern inside Token::Match() call: "] ="
[lib/checkunusedvar.cpp:755]: (warning) Found simple pattern inside Token::Match() call: "goto"
[lib/checkunusedvar.cpp:793]: (warning) Found simple pattern inside Token::Match() call: "="
[lib/checkuninitvar.cpp:376]: (warning) Found simple pattern inside Token::Match() call: "> ("
[lib/checkother.cpp:86]: (warning) Found simple pattern inside Token::Match() call: "> ("
[lib/checkother.cpp:2181]: (warning) Found simple pattern inside Token::Match() call: "> {"
[lib/valueflow.cpp:54]: (warning) Found simple pattern inside Token::Match() call: "&"
[lib/valueflow.cpp:409]: (warning) Found simple pattern inside Token::Match() call: "do"
[lib/valueflow.cpp:425]: (warning) Found simple pattern inside Token::Match() call: ") {"
[lib/valueflow.cpp:487]: (warning) Found simple pattern inside Token::Match() call: ") {"
[lib/valueflow.cpp:511]: (warning) Found simple pattern inside Token::Match() call: "} else {"
[lib/valueflow.cpp:615]: (warning) Found simple pattern inside Token::Match() call: "for ("
[lib/symboldatabase.cpp:80]: (warning) Found simple pattern inside Token::Match() call: "= {"
[lib/symboldatabase.cpp:1069]: (warning) Found simple pattern inside Token::Match() call: "std ::"
[lib/tokenize.cpp:2207]: (warning) Found simple pattern inside Token::Match() call: "< >"
[lib/tokenize.cpp:2730]: (warning) Found simple pattern inside Token::Match() call: ";"
[lib/tokenize.cpp:4234]: (warning) Found simple pattern inside Token::Match() call: "try {"
[lib/tokenize.cpp:4235]: (warning) Found simple pattern inside Token::Match() call: "} catch ("
[lib/tokenize.cpp:5500]: (warning) Found simple pattern inside Token::Match() call: "INT8"
[lib/tokenize.cpp:5752]: (warning) Found simple pattern inside Token::Match() call: "}"
[lib/tokenize.cpp:5752]: (warning) Found simple pattern inside Token::Match() call: "do"
2014-03-14 16:27:47 +01:00
Daniel Marjamäki 8d8913a168 Partial fix for #5555. Add const,pure attributes to library. 2014-03-14 06:38:45 +01:00
Frank Zingsheim 5e0a575091 Optimization: tokenlist::addtoken 2014-03-09 17:54:49 +01:00
Alexander Mai 50a184c3e9 Fixed #5166 (segmentation fault (invalid code) in lib/checkother.cpp:329 ( void * f { } void b ( ) { * f } )) 2014-02-27 18:24:51 +01:00
Daniel Marjamäki 7dbfd67da3 Fixed #5493 (False positive: Found a statement that begins with numeric constant / string constant - in the presence of initialization list.) 2014-02-26 06:18:52 +01:00
Daniel Marjamäki 8dd7f02e45 Fixed #5381 (Some false positives that came up when using --enable=performance file.c) 2014-02-23 11:02:39 +01:00
Daniel Marjamäki d37359217c Merge pull request #241 from lanurmi/more-nullptr
Change some more 0 literals into nullptr.
2014-02-16 23:29:23 +01:00
Lauri Nurmi 70a67eaf85 Change some more 0 literals into nullptr. 2014-02-16 13:38:50 +02:00
Daniel Marjamäki fdcb325d70 DuplicateBranch: Made warning inconclusive since it's in most cases noise 2014-02-16 11:04:27 +01:00
Lucas Manuel Rodriguez 052840f8f5 Fixed #4818 (New check: Check memset() 2nd parameter) 2014-02-15 15:06:00 -03:00
Daniel Marjamäki fb5c2d4b48 use nullptr in lib/checkother.cpp 2014-02-15 08:46:28 +01:00
Daniel Marjamäki fd3a8a2a18 Update copyright 2014-02-15 07:45:39 +01:00
Daniel Marjamäki 486a3192c0 Fixed #5246 (false positive: (warning) Logical conjunction always evaluates to false: t > 0 && t < 1.) 2014-02-04 06:50:29 +01:00
Lucas Manuel Rodriguez ad0269eeeb Refactor checks using Variable::isStlType() 2014-01-30 01:26:48 -03:00
Daniel Marjamäki 69109784e8 value flow: cleanup usage of valueflow. utility function Token::getValue was added. 2014-01-20 06:49:45 +01:00
Daniel Marjamäki add84187cc CheckOther: Removed old zero division check 2014-01-20 06:31:13 +01:00
Daniel Marjamäki b2b5590f2b Refactoring: Moved astStringify to the Token class and renamed it to expressionString. This can often be useful when reporting error messages that contains source code. 2014-01-17 18:37:49 +01:00
Daniel Marjamäki 3facc06cb7 CheckOther: Removed non-valueflow check for division by possible zero before condition 2014-01-17 17:42:54 +01:00
Daniel Marjamäki ab866be03a Tokenizer: Move 'else if' simplification to tokenize 2014-01-12 17:47:02 +01:00
Daniel Marjamäki e3496080c8 Fixed #5334 (False positive: same expression on both sides of '||') 2014-01-12 07:40:56 +01:00
Daniel Marjamäki ceca6be22b Fixed #5334 (False positive: same expression on both sides of '||') 2014-01-11 15:15:01 +01:00
Daniel Marjamäki 39b47cc1e7 value flow: improved error message output for conditional division by zero 2014-01-06 10:51:17 +01:00
Daniel Marjamäki 0877adb542 astyle formatting 2014-01-05 21:12:32 +01:00
Daniel Marjamäki afaf1473a8 Value flow: refactorings, write debug warning if iterating too far 2014-01-05 20:06:46 +01:00
Daniel Marjamäki d8270c710a Add new experimental value flow analysis 2014-01-04 20:57:02 +01:00
Daniel Marjamäki 372c29c24e Fixed #5284 (duplicateExpression falsely reported by members of a union in some circumstances) 2014-01-02 16:58:07 +01:00
Daniel Marjamäki 4b72f01e99 clarify calculation: Fixed FP for 'a = (*p ? 1 : 2)' 2013-12-28 11:02:39 +01:00
Daniel Marjamäki 4c44e62159 AST: Refactored CheckOther::clarifyCalculation 2013-12-24 10:07:20 +01:00
Daniel Marjamäki 042d3afb80 CheckOther::checkDuplicateExpression: Readded warnings when there is a expression between the duplicate expressions 'X || Y || X' 2013-12-24 07:21:46 +01:00
Daniel Marjamäki ac30a84c3a Refactoring: Replaced CheckOther::checkCCTypeFunctions with configuration 2013-12-23 19:58:33 +01:00
Daniel Marjamäki 76b907fe65 Fixed #5252 (Improve check: use Library to validate function arguments in invalidFunctionUsage) 2013-12-23 10:06:45 +01:00
Daniel Marjamäki fdcb6634df Fixed #5190 (FP Use const reference to avoid data copying) 2013-12-14 08:46:18 +01:00
Daniel Marjamäki 08cd0cd0f7 CheckOther::checkDuplicateExpression: Added TODO comment to readd checking for duplicate separated expressions 2013-12-13 06:40:35 +01:00
Daniel Marjamäki 83066edec0 Code cleanup 2013-12-10 06:29:06 +01:00
Daniel Marjamäki 5ba02d2fdd AST: Always use AST 2013-12-09 18:06:19 +01:00
Daniel Marjamäki da540a3bb3 AST: Improved astIsFloat handling of expressions 2013-11-25 04:26:15 +01:00
Daniel Marjamäki abdf2bb9d4 AST: fixed isSameExpressions handling of ({..}) 2013-11-25 04:08:28 +01:00
Daniel Marjamäki 13cd0f41f6 AST: Fixed FP in isSameExpression when there are different casts 2013-11-24 15:17:08 +01:00
Daniel Marjamäki e8eeb90adb AST: Fixed 'same expression' false positives (git merge --squash s, <<, >>) 2013-11-20 16:18:09 +01:00
Daniel Marjamäki 27a40b10e1 AST/incorrectLogicOperator: Better handling of large doubles where x+1=>x 2013-11-20 06:33:34 +01:00
Daniel Marjamäki 4e003c392e AST: code cleanup. Remove unreachable 'break' after 'return' 2013-11-18 23:24:58 +01:00
Daniel Marjamäki 45ee3b0fba AST: Refactoring new checkIncorrectLogic checking 2013-11-18 23:09:14 +01:00
Daniel Marjamäki 033cb19656 Same expression: Don't write warnings for same expression on both sides of arithmetical operators 2013-11-17 17:21:39 +01:00
Daniel Marjamäki 5af2fe6e5b AST: improved 'incorrect logic' checking when there are nested expressions 2013-11-15 06:51:35 +01:00
Daniel Marjamäki d1721b9d1b AST: Improved 'same expression on both sides of operator' checking for nested operators 2013-11-15 06:35:46 +01:00
Daniel Marjamäki 203d3e916b Fixed #5173 (false positive Variable XX is reassigned a value before the old one has been used) 2013-11-14 16:10:00 +01:00
Daniel Marjamäki 1ecade2657 AST: don't warn about duplicate expressions around '+' operator. It might be more efficient than using for instance '*2' 2013-11-11 20:03:59 +01:00
Daniel Marjamäki 58d7caded1 AST: improved handling of casts 2013-11-11 16:39:34 +01:00
Daniel Marjamäki 4027848761 incorrectLogicOperator: fixed FP when comparing char values. improved handling of float comparisons. 2013-11-10 18:06:51 +01:00
Daniel Marjamäki 807f62520c Fixed crash caused by endless recursion in redundant assignments check 2013-11-10 17:20:40 +01:00
Alexander Mai 687aeb4f5f Fixed #5158 (segmentation fault (valid code)) 2013-11-10 16:22:52 +01:00
Daniel Marjamäki 4ed4d71b3c CheckOther::checkIncorrectLogicOperator(): cleanup 2013-11-10 14:24:09 +01:00
Daniel Marjamäki cadb284a3d Refactored the AST checking of CheckOther::checkIncorrectLogicOperator() 2013-11-10 11:59:18 +01:00
Martin Ettl babbee4e73 Fixed typos in comments, no functional changes. 2013-11-09 16:07:28 +01:00
Daniel Marjamäki b0ce42565e AST: Added experimental new implementations for CheckAssignIf::comparison, CheckOther::checkIncorrectLogicOperator and CheckOther::checkDuplicateExpression 2013-11-07 14:38:08 +01:00
orbitcowboy 43103c84d8 Checkother:memsetZeroBytes: removed not needed '\n' from verbose message. 2013-11-07 05:15:36 -08:00
orbitcowboy 3d47ae9463 checkother:memsetZeroBytes: improved verbose message. 2013-11-06 06:42:27 -08:00
orbitcowboy 86aa2a27ab checkother: improved constness of local variables, no functional change. 2013-11-06 06:15:32 -08:00
Daniel Marjamäki fb04c8ff84 Fixed #5107 (redundantAssignment when pointer changes) 2013-11-04 23:46:07 +01:00
Daniel Marjamäki 06c5bd0daa Fixed #5128 (False positive zerodivcond 'a ? 1 / a : 0') 2013-10-30 16:51:00 +01:00
Daniel Marjamäki 364757e1e1 Fixed #5089 ('inconclusive' output printed although --inconclusive not specified) 2013-10-23 06:42:52 +02:00
Daniel Marjamäki d1b03d9c31 Fixed false positive for 'object is destroyed immediately' when there is no code after the object 2013-10-22 19:37:11 +02:00
Daniel Marjamäki a55056c770 Fixed #5105 (false positive: (warning) Either the condition 'b!=0' is useless or there is division by zero) 2013-10-22 16:18:42 +02:00
Daniel Marjamäki 5d7e0aebf4 Fixed #5084 (False positive: (style) Same expression on both sides of '&&') 2013-10-19 18:04:53 +02:00
Daniel Marjamäki 6aa03efa2f Fixed #5103 (Don't show 'The scope of the variable can be reduced' if there is no explicit block with { }) 2013-10-19 17:27:02 +02:00
Daniel Marjamäki 9ce7efc6e4 commaSeparatedReturn: made checking experimental for now because there are false positives (#5076) 2013-10-08 18:05:07 +02:00
Daniel Marjamäki 4cd0108b93 Fixed #4976 (False positive: (style) A pointer can not be negative (git/sha1_file.c)) 2013-10-06 16:52:27 +02:00
Daniel Marjamäki 6830d5f7a4 Fixed #5042 (false positive: Redundant code (set filled in initialization list)) 2013-10-05 12:26:09 +02:00
Martin Ettl ee9b7283ec checkother:checkComparisonFunctionIsAlwaysTrueOrFalse: Removed redudant varid != 0 check. No functional changes. 2013-09-29 13:33:46 +02:00
Daniel Marjamäki 973bdcc6d8 Fixed #4929 (false positive: Division by zero (standard function div())) 2013-09-29 11:13:49 +02:00
Daniel Marjamäki c05a80d314 zero division or useless condition: dont crash when variable declaration is not parsed correctly 2013-09-28 16:51:38 +02:00
Martin Ettl 5aaaff46ee Fixed #5049: new check: (warning) Comparison of two identical variables with isgreater(result,result) evaluates always to false. 2013-09-26 07:07:48 +02:00
Daniel Marjamäki 17c0bb3cab revert 027e5cc8. the div() standard function should not be reimplemented. create a different fix. Ticket: #4929 2013-09-23 18:01:15 +02:00
Daniel Marjamäki d1c9cac155 Merge pull request #170 from simartin/clang_warnings_2
Remove warnings emitted by clang's -Wsign-conversion
2013-09-22 20:42:10 -07:00
Simon Martin 894f537eba Remove warnings emitted by clang's -Wsign-conversion 2013-09-22 13:22:52 +02:00
Daniel Marjamäki 027e5cc860 Fixed #4929 (false positive: Division by zero (standard function div())) 2013-09-22 09:52:12 +02:00
Daniel Marjamäki 965d8f0ecc Fixed #5033 (segmentation fault (valid code) in CheckOther::checkZeroDivisionOrUselessCondition) 2013-09-21 17:44:25 +02:00
Daniel Marjamki 3de9431507 Fixed #5022 (Improve check: Division by zero or useless condition, function call) 2013-09-15 17:46:52 +02:00
Ettl Martin 5a671f8914 Fixed #5023 (Add support for asinf,acosf,asinl,acosl (...) functions) 2013-09-13 19:49:25 +02:00
Daniel Marjamäki 0d246f84ca checkZeroDivisionOrUselessCondition: Refactoring 2013-09-07 17:54:34 +02:00
Daniel Marjamäki 6bb6506ce2 checkZeroDivisionOrUselessCondition: Fixed false positive when function is called and variable is passed to it 2013-09-07 16:18:11 +02:00
Daniel Marjamäki 83c460fc56 Fixed #5017 (New check: division by zero, otherwise condition is redundant) 2013-09-07 07:40:10 +02:00
Daniel Marjamäki 5d7f30b88f reassign var: better handling of struct members 2013-08-15 16:13:58 +02:00
PKEuS a9a5dc0354 Updated to AStyle 2.03, require this version 2013-08-07 16:27:37 +02:00
PKEuS dd82817752 Fixed #4943 and simplified CheckOther::checkCommaSeparatedReturn() 2013-08-06 11:27:09 -07:00
PKEuS 5e3ccda408 Added support for noreturn functions from library to CheckOther::checkUnreachableCode() 2013-08-06 02:11:59 -07:00
Daniel Marjamäki d9a2f542be CheckOther: removed redundant conditions. No need to check if varid is > 0 and if there is variable info. 2013-07-29 12:01:52 +02:00
Alexander Mai 40fa474a5b Fixed #4927 (Segfault in CheckOther::checkCommaSeparatedReturn() on invalid code) 2013-07-28 10:39:58 +02:00
Carlo Marcelo Arenas Belon aa0560fe3b Fixed #4925 (False positive: checkother style)
When using a variable that is assigned a function pointer checks for
pointers are triggered which would complain if used in arithmetic
comparisions (eventhough it will be valid code if the function returns
an int)
2013-07-24 08:22:24 +02:00
Lucas Manuel Rodriguez 7e556c215e Fixed #4861 (Improve check: object is destroyed immediately not detected when calling overloaded constructor) 2013-07-22 07:25:53 +02:00
Daniel Marjamäki 9c67af058a SymbolDatabase: Renamed Variable::varId() to Variable::declarationId() to make it more clear how it works. 2013-07-20 12:31:04 +02:00
Roman Zaytsev Borisovich e37587aed5 Ticket #4801 2013-07-02 15:28:44 +04:00
Daniel Marjamäki 2fb8133e90 Fixed #4862 (False positive: Comma is used in return statement (template)) 2013-06-18 00:13:45 +02:00
Daniel Marjamäki b31c218773 fixed typo, thanks XhmikosR for pointing it out 2013-06-15 19:31:17 +02:00
Abhishek Bharadwaj d85c8e6782 Fixed #4104 (New check: comma separated statements in return statement from a function) 2013-06-15 17:49:10 +02:00
Zachary Blair 9c45e6d47d Fixed #4173: Elaborated on the verbose error message 2013-06-10 23:11:44 -07:00
PKEuS 4efccc2c5d Fixed #4420: Prefix increment is only suspicious, if its return value is not used. 2013-06-10 13:02:02 -07:00
Zachary Blair 28c0045f36 Fixed #4173: New check: arithmetical usage of inf/nan result 2013-06-09 23:13:08 -07:00
Daniel Marjamäki c795f6e2f7 CheckOther::checkSuspiciousEqualityComparison: check if --inconclusive has been used since the message is inconclusive 2013-05-20 16:05:21 +02:00
Frank Zingsheim d387e8b770 Fixed #4711: (false positive: Consecutive return...) 2013-05-11 17:50:59 +02:00
PKEuS fb480ebb0a Now really fixed #4604. 2013-05-09 15:39:33 +02:00
PKEuS 881b47e79d Revert "Improved handling of 0 initializations (#4604)"
This reverts commit 1201e417ec.
2013-05-09 15:32:02 +02:00
PKEuS 0a104c40b7 Fixed "Improved handling of 0 initializations (#4604)"
This fixes commit 1201e417ec.
2013-05-09 15:25:36 +02:00
PKEuS 982b9491d4 Improved handling of 0 initializations (#4604) 2013-05-09 06:23:25 -07:00
PKEuS c42b89fb88 Revert "Improved handling of 0 initializations (#4604)"
This reverts commit 1201e417ec.
2013-05-09 15:19:23 +02:00
PKEuS 1201e417ec Improved handling of 0 initializations (#4604) 2013-05-09 06:17:10 -07:00
Lena Herscheid e23038c4de Fixed #4775 (Check for assert() with side effects) 2013-05-07 21:35:16 +02:00
Daniel Marjamäki b2798e929d Improved fix for #4455, no false negatives if variable is used before first memset 2013-04-30 16:56:44 +02:00
Daniel Marjamäki 47ef8cf455 Fixed #4455 (redundantCopy when precleaning with memset) 2013-04-30 06:43:16 +02:00
Daniel Marjamäki a5b044a6e2 Fixed #4754 (False positive: Map literals trigger redundant code warning) 2013-04-20 07:51:44 +02:00
Ettl Martin e03a3946d0 avoid crash in checkother:wrongPipeParameterSize when a pointer with unknown size is provided. 2013-04-11 14:22:22 +02:00
PKEuS 994c429b7d Moved checks related to sizeof usage from checkother into new file 2013-04-10 09:49:38 -07:00
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