walkero
/
cppcheck
1
0
Fork 0
Code Issues Pull Requests Projects Releases 1 Wiki Activity
19,438 Commits 13 Branches 88 Tags 170 MiB
Commit Graph

177 Commits

Author SHA1 Message Date
Paul Fultz II 40cb9cb1bc Check conditions in return statements (#1411) 
* Identify return conditions in multiconditions

* Improve error messages

* Check return statements are always true or false

* Add more tests for FPs

* Fix FP when returning const like variables

* Fix FP when returning pointers or classes

* Fix FP with member variable access

* Check non-local variables

* Use simplematch

* Check for null
 2018-10-18 21:01:47 +02:00
Daniel Marjamäki 58b21e3071 Refactoring: Reuse Token::expressionString() logic for finding right-most leaf in tree 2018-10-18 12:09:55 +02:00
Paul Fultz II 16c62281d0 Use followVar in checking duplicateBranch (#1423) 
* Use isSameExpression for duplicate branches

* Add errorPath

* Add another test
 2018-10-18 11:56:23 +02:00
Daniel Marjamäki f961324d45 Fixed #8735 (FP oppositeInnerCondition - regression) 2018-10-07 18:30:29 +02:00
Paul Fultz II e170a45230 Enable followVar for opposite expressions (#1404) 
Enable followVar for opposite expressions
 2018-10-04 21:17:47 +02:00
Paul Fultz II 1fe1ec09a8 Reenable follow var for logical conjunction (#1400) 2018-10-01 14:40:03 +02:00
Daniel Marjamäki 3a186b5bff astyle formatting 2018-10-01 11:53:32 +02:00
Paul Fultz II 4ed22f1ff8 Fix some FPs in mismatchingContainerExpression (#1402) 2018-09-30 14:49:58 +02:00
Paul Fultz II f65cf220ba Fix false positives in unknownEvaluationOrder when using followVar (#1391) 
Fix false positives in unknownEvaluationOrder when using followVar
 2018-09-28 08:38:24 +02:00
orbitcowboy 2f032d8fa7
Improved const correctness of local variables. (#1396) 
* Improved const correctness of local variables.

* Running astyle [ci-skip].

* Removed duplicate 'const'-keyword.
 2018-09-24 15:08:16 +02:00
Paul Fultz II 5bebeec224 Fix issue 8775: Dont follow aliased variables (#1390) 2018-09-24 06:37:47 +02:00
Daniel Marjamäki afe09f4d7a Temporarily comment out the followVariable() handling 2018-09-23 16:03:18 +02:00
orbitcowboy a812da2cf1 Formatted the code. 2018-09-17 17:16:32 +02:00
Paul Fultz II 4e7ed9ea6e More robust checking for crashes in followVar (#1375) 
More robust checking for crashes in followVar
 2018-09-13 09:19:15 +02:00
Paul Fultz II 90a29d986b Fix issue 8730: Dont follow variables with unknown symbols (#1374) 2018-09-12 17:30:18 +02:00
Paul Fultz II f4f3f81e8f Fix issue 8741: Require pure when following variables in isSameExpression (#1373) 2018-09-09 07:08:32 +02:00
Daniel Marjamäki df9df70ba7 astyle formatting 
[ci skip]
 2018-09-08 09:07:59 +02:00
Paul Fultz II cb03b9883f Fix issue 8737: FP with identical inner condition due to followVar (#1371) 2018-09-07 20:16:38 +02:00
Paul Fultz II b46e25c18e Fix issue 8730: False positive: Opposite expression on both sides of && (#1366) 2018-09-05 18:07:01 +02:00
Paul Fultz II 08f301a0de Reenable followVar (#1363) 
Reenable followVar
 2018-09-05 05:53:33 +02:00
Daniel Marjamäki 5afb755a3c SymbolDatabase: Fix variable matching 2018-09-04 06:39:02 +02:00
Paul Fultz II 93be440f92 Fix issue 8709: crash with switch statement with followVar (#1362) 
* Fix crash with switch statement

* Update comment
 2018-09-03 19:54:14 +02:00
Paul Fultz II 0e5fabf4dc Dont follow volatile variables (#1365) 2018-09-03 19:51:48 +02:00
Paul Fultz II 8353f94b93 Fix crashes in followVarExpression (#1358) 
* Fix crashes in followVarExpression

* Add a regression test for issue 8717

* Skip reference declarations
 2018-09-02 08:28:53 +02:00
Daniel Marjamäki 0a9d417266 add comments 2018-09-01 16:45:14 +02:00
Daniel Marjamäki 3cad3c901f Another patch to temporarily disable the followVariableExpression 2018-09-01 11:39:21 +02:00
Daniel Marjamäki a331206b44 Temporarily disable followVariableExpressions(), there are problems that should be fixed. 2018-09-01 08:32:06 +02:00
Armin Müller b9cd7368f5 Typos found by running "codespell" (#1355) 
* Update astutils.cpp

* Update checksizeof.cpp
 2018-08-30 19:51:39 +02:00
Daniel Marjamäki 4378327c43 astyle formatting 
[ci skip]
 2018-08-27 13:48:46 +02:00
Paul Fultz II fc135e1087 Check if member function modifies the variable (#1350) 
* Check if member function modifies the variable

* Check for const pointer

* Add test for const condition

* Add more null checking

* Add todo assert for FN
 2018-08-27 11:09:09 +02:00
Daniel Marjamäki 212af76367 astyle formatting 
[ci skip]
 2018-08-18 15:45:50 +02:00
Paul Fultz II fd49112196 Avoid duplicates in the error path (#1346) 2018-08-18 07:32:30 +02:00
Paul Fultz II bbf876256c Add error path to more diagnostics that rely on isSameExpression (#1342) 2018-08-17 09:25:07 +02:00
Paul Fultz II c5154286da Fix issue 8687: false positive with same expression (#1336) 2018-08-13 12:55:41 +02:00
Daniel Marjamäki c3a44ce56b astyle formatting 
[ci skip]
 2018-08-07 18:06:51 +02:00
Paul Fultz II f603b529df Fix issue 8413: Condition is always false 'i=expr; if (i != expr) {}' (#1295) 
* Follow variables when comparing same expression

* Remove assert include

* Dont follow function arguments

* Improve the checking to check more cases

* Add more tests

* Check if the variable is used inside a loop

* Follow both variables

* Only skip loops when variable is modified in scope

* Fix FP when followed variable is modified

* Dont follow arrays

* Skip pointer indirection

* Make recursive

* Improve checking more variables

* Fix test with sizeof

* Skip following operators

* Fix test when using sizeof

* Dont check every step

* Use early returns

* Update test to use a loop instead of conditional

* Add static

* Check variables are global

* Check local variables in another scope

* Fix issue with const pointers

* Distinguish between pointer indirection and multiply

* Use simple match

* Prevent crash with uniform initialization

* Use unary op and ast to detect pointer indirection

* Expand error message when expression do not match exactly

* Add errorpath to issameexpression

* Revert "Clarify warning message for 'Same expression on both sides of operator'"

This reverts commit 0e491b41a8.

* Check if the tokens are the same

* Report the operator and not the expressions
 2018-08-07 09:32:16 +02:00
Daniel Marjamäki 1b933f4dd1 astyle formatting 
[ci skip]
 2018-08-05 22:40:21 +02:00
Paul Fultz II b839ad60dd Fix issue 6856: add checks in isOppositeCond when using == and < or > (#1298) 
* Fix issue 6856: add checks in isOppositeCond when using == and < or >

* Move tests to testcondition

* Fix some more tests

* Fix test messages

* Remove the float check
 2018-08-05 22:39:40 +02:00
Daniel Marjamäki 1c4fb47582 astyle formatting 
[ci skip]
 2018-07-15 14:45:33 +02:00
Paul Fultz II 5d1fdf7958 Fix issue 7904: Handle double nots in isSameExpression (#1305) 
* Fix issue 7904: Handle double nots in isSameExpression

* Skip checking double nots in assignments

* Use ast to check for double not
 2018-07-15 11:30:02 +02:00
Daniel Marjamäki 93903d96c4 Refactoring, use Token::isUnaryOp and Token::isBinaryOp 2018-07-13 18:52:03 +02:00
Daniel Marjamäki 03faa25d12 Conditions: Better handling of function calls 2018-07-08 15:58:04 +02:00
Daniel Marjamäki 593f7eee38 Fixed #8624 (Crash below CheckOther::checkDuplicateExpression) 2018-06-14 22:39:26 +02:00
Paul Fultz II 8d53bcfd63 Fix FP when using non-const members and also check return type of function (#1283) 2018-06-09 08:05:19 +02:00
PKEuS 4d549553b0 Small optimization in checkmemoryleak.cpp: Allow passing literals to addtoken() 
Ran AStyle
 2018-05-14 10:15:50 +02:00
Paul Fultz II 7ef714b0c6 Fix FP with duplicate assignments by checking if the expression is unique (#1223) 
* Fix FP with duplicate assignments by checking if the expression is unique

* Use array of pointers

* Reorder scope condition
 2018-05-13 20:20:55 +02:00
Daniel Marjamäki ce30a3ca71 astyle formatting 
[ci skip]
 2018-05-11 14:49:31 +02:00
Paul Fultz II c520735009 Improve checking of size condition against empty to avoid FPs (#1213) 
* Improve checking of size condition against empty to avoid FPs

* Add const and todo for reverse conditions
 2018-05-11 10:22:06 +02:00
Paul Fultz II f5dbfce8ff Fix false positive with oppositeExpression when using binary op (#1211) 
* Fix false positive with oppositeExpression when using binary op

* Simplify conditional
 2018-05-08 20:43:57 +02:00
Daniel Marjamäki f2bb7397b3 astyle formatting 
[ci skip]
 2018-05-04 14:57:45 +02:00
Paul Fultz II cac68c6b81 Fix FP when using - as a binary operator (#1201) 2018-05-04 07:58:30 +02:00
Daniel Marjamäki 920b553ebf astyle formatting 
[ci skip]
 2018-05-02 12:58:10 +02:00
Paul Fultz II f191a3e753 Improve checking of opposite expressions (#1199) 
* Improve checking of opposite expressions

* Fix some formatting
 2018-05-02 06:32:33 +02:00
Daniel Marjamäki 121d4ff2ba isLikelyStreamRead: when using & dont allow astParent 2018-04-22 07:30:45 +02:00
Daniel Marjamäki 4b8769a9f5 astyle formatting 
[ci skip]
 2018-04-18 17:46:31 +02:00
Daniel Marjamäki 7ee636b934 Refactoring: Reuse isLikelyStreamRead in isVariableChanged 2018-04-18 17:46:10 +02:00
Daniel Marjamäki 26e36a1d6b Fix FP uninitvar when stream bool operator is used 2018-04-18 16:13:24 +02:00
Daniel Marjamäki 219176c11c Update isLikelyStreamRead (#8494) 2018-04-17 20:34:31 +02:00
Daniel Marjamäki c84628c28a Fixed #8494 (False positive: serialization class overloads operator) 2018-04-17 14:23:04 +02:00
Dmitry-Me d9cbaa83d6 Extract common condition 2018-04-08 21:11:44 +03:00
Paul Fultz II 95fc84a26b Find duplicate expressions assigned to the same variable (#1129) 
* Check for duplicate assignments

* Improve checking of expression

* Add more tests

* Use simple match

* Improve robustness of check

* check for null

* Reduce side effects by checking for side effects

* Improve verbose message

* Reword the error message
 2018-04-08 14:43:19 +02:00
Daniel Marjamäki 3ad6c7ebce Refactoring, use early continue 2018-04-05 08:21:43 +02:00
jrp2014 e65c63e2bb Refactor lib/astutils.cpp 2018-04-05 08:07:22 +02:00
Paul Fultz II 0c6f184423 Fix false positive for opposite conditions when using different containers (#1143) 
* Fix false positive for opposite conditions when using different containers

* Add additional test
 2018-04-05 06:43:13 +02:00
Daniel Marjamäki e65a5529ad astyle formatting 
[ci skip]
 2018-03-24 12:30:11 +01:00
Paul 43be20a824 Check more opposite conditions 2018-03-24 07:58:37 +01:00
Daniel Marjamäki c4caee6b18 Updated copyright year 2018-01-14 15:37:52 +01:00
Daniel Marjamäki bbeff99cc3 Fixed #6930 (Token: need function that says if the token comes from instantiated template argument) 2018-01-11 09:41:22 +01:00
Daniel Marjamäki 8fe4852b98 Refactoring, reuse and improve isVariableChangedByFunction() 2017-11-18 11:02:52 +01:00
Oleksandr Redko a8700f5622 Remove redundant parts of conditional expressions (#988) 
All issues were found with PVS-Studio:
V560 A part of conditional expression is always true: tok. astutils.cpp 407
V560 A part of conditional expression is always true: size > 0. checkbufferoverrun.cpp 709
V547 Expression 'secondTrue' is always true. checkcondition.cpp 1013
V547 Expression 'firstTrue' is always true. checkcondition.cpp 1020
V560 A part of conditional expression is always true: !scan. checkio.cpp 1036
V560 A part of conditional expression is always true: scope->function. checknullpointer.cpp 395
V560 A part of conditional expression is always true: tok2. checkstl.cpp 268
V560 A part of conditional expression is always true: par. tokenize.cpp 9440
V547 Expression '!erased' is always true. symboldatabase.cpp 3990
 2017-11-03 10:39:57 +01:00
Daniel Marjamäki 5993c40d5b Improve 'opposite inner condition' check 2017-09-22 14:01:20 +02:00
Daniel Marjamäki e61222126f Fixed #8176 (ValueFlow: variable might be changed if it's passed by reference to method) 2017-09-20 22:09:09 +02:00
Daniel Marjamäki 5f4b06c0f4 isVariableChangedByFunctionCall: Fix FN when constructor argument is const reference 2017-09-20 14:03:56 +02:00
Daniel Marjamäki 3e231a9325 Refactoring: Reuse function numberOfArguments() for counting arguments 2017-09-20 13:28:45 +02:00
Daniel Marjamäki 2103726d54 Stop counting arguments properly 2017-09-20 13:00:43 +02:00
Daniel Marjamäki 4318521fc1 Fixed #8187 (isVariableChangedByFunctionCall: Constructor reference argument) 2017-09-20 12:53:25 +02:00
Daniel Marjamäki 56544ac936 Fixed #8211 (Crash on incomplete code in isVariableChanged ()) 2017-09-11 13:45:36 +02:00
Daniel Marjamäki d02d235e5e Refactoring oppositeInnerCondition checking 2017-09-04 22:54:06 +02:00
Daniel Marjamäki 30f04a5a96 Fixed #8195 (False positive uninitvar (regression) - valueflow misses variable initialization via istringstream >>) 2017-09-02 21:53:51 +02:00
Daniel Marjamäki 0b751dcc1b Opposite conditions: Better matching when outer condition uses && 2017-09-01 23:24:15 +02:00
Daniel Marjamäki 3bbcede43b Fixed #8193 (crash: A = -(-0.2) / (1.0 + B * B) ( daca, lammps)) 2017-09-01 22:15:09 +02:00
Daniel Marjamäki 7fad1b9a36 Improved checking for opposite conditions 2017-08-31 22:53:21 +02:00
Daniel Marjamäki dce942197c Fixed #8186 (Inner condition always false inside for loop) 2017-08-31 16:00:12 +02:00
Dmitry-Me d598a1c278 Fix typo causing two expressions being identical 2017-08-30 22:43:54 +03:00
Daniel Marjamäki 59034e17f1 Refactoring, reuse code to skip lambda functions 2017-08-29 22:35:55 +02:00
Daniel Marjamäki 32fe0aba41 Fixed #8037 (ValueFlow: global variable might be modified by function call) 2017-07-09 12:50:17 +02:00
Daniel Marjamäki 0a91ced941 refactoring, use continue in loop instead of nesting 2017-07-09 12:36:33 +02:00
Ayaz Salikhov 28aa939d69 iwyu - include what you use 2017-05-27 04:33:47 +02:00
Daniel Marjamäki 8a738eefab fixed #7998 (uninitialized variable is not found when used with switch/case) 2017-04-23 18:05:14 +02:00
Daniel Marjamäki 3fbcc0cd3b Refactor CheckFunctions::invalidFunctionUsage 2017-04-20 19:57:39 +02:00
PKEuS 3c8f5b85ae Refactorization: Allocate Token::_values (ValueFlow information) dynamically, reducing size of each token by around 10% 2017-03-27 18:48:34 +02:00
PKEuS 816106560a More conservative check for non-commutative operator+ in isSameExpression() (#7938) 2017-03-15 19:17:40 +01:00
Daniel Marjamäki a53f14da25 Fixed #7925 (False Positive identical condition) 2017-02-22 21:13:36 +01:00
PKEuS 718fcfda46 Several small refactorizations 2016-12-06 20:02:43 +01:00
PKEuS 2f6350a0d0 Refactorized Library 2016-12-06 14:09:28 +01:00
Frank Zingsheim d4f01583b6 Fixed TODO (check if function parameter is non-const reference etc..) by common function 2016-11-01 14:06:30 +01:00
Daniel Marjamäki efa3aba32a Remove Tokenizer::simplifyNull() 2016-10-18 21:44:02 +02:00
Daniel Marjamäki e784901303 Fixed #6971 (False positive duplicateExpressionTernary - cast ignored) 2016-08-01 21:53:43 +02:00
Dmitry-Me b3877a8ba0 Cleanup variable names 
* fix typo
* use camelCase instead of underscore
 2016-08-01 14:33:56 +03:00
Dmitry-Me 1f27c4b76b Merge pull request #771 from Dmitry-Me/charUsedAsArrayIndex 
Portability warning when 'char' type is used as array index
 2016-02-10 20:11:38 +03:00