Commit Graph

1267 Commits

Author SHA1 Message Date
Daniel Marjamäki ba8222de1c ValueFlow: Put 'inconclusive' state in the ValueKind. A value can't be both known and inconclusive. 2017-09-20 22:41:36 +02:00
Dmitry-Me d7b91a9e92 Fix CID 1378763
Defensive check recovered from earlier version of this code
2017-09-05 00:17:51 +03:00
Daniel Marjamäki e74e4c6934 Fixed #8030 (False positive 'constStatement' when indexing with {}) 2017-08-26 11:59:09 +02:00
Ayaz Salikhov b8cd7dbb5c Use nullptr instead of 0 or NULL (#936) 2017-08-09 20:00:26 +02:00
orbitcowboy 0e575ce12c Modernize: make use of 'nullptr' and added a rule-file for finding non-nullptr (zero) initializations. 2017-07-28 15:20:43 +02:00
Andreas Pokorny b802b98136 Do not warn when unique pointers are passed by value
A unique pointer should only be passed by value or by const reference.
Passing by value means transferring ownership it makes no sense to have a pass by value Warning for unique_ptr

Signed-off-by: Andreas Pokorny <andreas.pokorny@siemens.com>
2017-07-25 11:17:56 +02:00
Stas Cymbalov ff38cc5c13 Set struct size cutoff in passedByValue check to 2*sizeof_pointer
Struct arguments are either pushed to the stack or passed in the
registers. Since both methods operate on machine words it is logical to
tie the maximum size of a struct argument that doesn't trigger
passedByValue diagnostic to the size of the machine word.

Also guessed size of STL classes is set to 3*sizeof_pointer, this better
represents reality and ensures that structs containing them will still
trigger passedByValue.
2017-06-06 08:48:11 +02:00
Ayaz Salikhov 28aa939d69 iwyu - include what you use 2017-05-27 04:33:47 +02:00
Daniel Marjamäki f7cda81c0c Refactoring: ValueFlow::Value::errorSeverity() will have the logic if value is 'error' or 'warning' 2017-05-23 11:43:56 +02:00
Daniel Marjamäki 55ae206ecc ErrorPath: better output 2017-05-19 17:29:16 +02:00
Matthias Krüger a2c716fa3b CheckOther::checkDuplicateExpression(): be lazier if style-reports are not enabled. NFCI. 2017-05-19 00:54:55 +02:00
Daniel Marjamäki c617851567 ErrorLogger: Added ErrorPath where each item has token and info 2017-05-16 22:38:13 +02:00
Daniel Marjamäki f92e7b3bfc Emit better errorpath in CheckBufferOverrun::negativeIndexError 2017-05-16 19:08:47 +02:00
Daniel Marjamäki 8d75d1b920 Partial fix for #8028 (ValueFlow: Origin/callstack of value) 2017-05-15 20:05:11 +02:00
Daniel Marjamäki 101dc28afa Refactoring: Moved checkMemset.. from CheckOther to CheckFunctions 2017-04-23 07:53:41 +02:00
Daniel Marjamäki f6ab204dc6 Refactorings in CheckOther 2017-04-23 07:19:44 +02:00
PKEuS b1f4bd7504 Refactorization: Reimplemented Settings::_enabled as a bitfeld instead of std::set (#7995) 2017-04-11 11:49:26 +02:00
Roberto Martelloni 35d1479d05 CWE mapping of funcArgOrderDifferent, funcArgNamesDifferent (#885)
Add an optional extended description…
2017-04-01 08:36:46 +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
Daniel Marjamäki f5d56fd303 Fixed #7961 (Hang in CheckOther::checkFuncArgNamesDifferent) 2017-03-24 22:01:05 +01:00
PKEuS 00904ba32a Fixed false negatives in CheckOther::checkPassByReference() when assignment operator is used. 2017-03-07 21:49:28 +01:00
PKEuS 3da1de7893 Do not exclude std::shared_ptr and std::unique_ptr from checkPassByReference() (#7834)
These two types are larger than one pointer. Hence, passing by reference is faster.
2017-03-07 21:18:08 +01:00
PKEuS 1c3f010935 Fixed false positive: Exclude STL shared pointers from checkPassByReference() (#7834) 2017-03-07 21:04:19 +01:00
Daniel Marjamäki ecc59859e1 Don't simplify _Bool in TokenList 2017-03-04 11:13:28 +01:00
Daniel Marjamäki b1ce229006 Small refactoring 2017-03-03 19:09:32 +01:00
Daniel Marjamäki 59c1c76a97 Fixed #7466 (Reference variable does not count side-effects (FP variableScope)) 2017-03-03 19:07:00 +01:00
Ville Skyttä 2ccd5aec1a Comment spelling fixes
Add an optional extended description…
2017-02-28 12:22:59 +01:00
PKEuS 3022d74801 Do not suggest pass by reference for std::initializer_list 2017-01-19 11:14:55 +01:00
Robert Reif 139071d88b Fixed #7875 (New check: function declaration and definition argument names don't match) 2017-01-05 08:52:11 +01:00
Daniel Marjamäki 770abcf453 Fixed #5398 (False positive: Scope of variable can be reduced does not account for other variables not reduceable) 2016-12-26 14:14:40 +01:00
Roberto Martelloni 04f24b4220 CWE mapping of accessMoved, accessForwarded, nullPointerArithmeticRedundantCheck, nullPointerArithmetic 2016-12-24 23:07:37 +00:00
Daniel Marjamäki df6ae9f3b4 Fixed #7847 (Can't detect shift negative values when some op is executed) 2016-12-22 09:40:19 +01:00
Frank Zingsheim 9a871d33f7 Improve Fix #6180 ("reset" and "clear" clears the move status) 2016-12-17 16:39:30 +01:00
PKEuS 2f6350a0d0 Refactorized Library 2016-12-06 14:09:28 +01:00
Matthias Krüger 4cf85b72b6 CheckOther::checkAccessOfMovedVariable: don't warn if --enable=warning is not given. 2016-11-20 18:44:37 +01:00
Frank Zingsheim c8ff96fe8f Fixed #6180 (Usage of variable after std::move or std::forward) 2016-11-20 15:14:49 +01:00
PKEuS e23dc5c1e2 Fixed wrong message shown if unused label appears directly after a switch() scope 2016-11-20 14:43:54 +01:00
orbitcowboy 919f8ac323 Fixed typos. There are no real changes. 2016-11-04 15:01:05 +01:00
Daniel Marjamäki a85eacc157 cstyleCast: don't warn about '(const Variable *)nullptr' 2016-10-18 22:56:33 +02:00
Boris Egorov 0154d39bf6 Show struct member in unsignedLessThanZeroError warning
Before:
    [/tmp/test.c:8]: (style) Checking if unsigned variable '.' is less than zero.
    [/tmp/test.c:12]: (style) Checking if unsigned variable '.' is less than zero.

After:
    [/tmp/test.c:8]: (style) Checking if unsigned variable 'd.n' is less than zero.
    [/tmp/test.c:12]: (style) Checking if unsigned variable 'd.n' is less than zero.
2016-09-22 08:03:30 +07:00
Matthias Krüger 2f39ed6f88 redundantPointerOpError: put pointer name into single quotes in the error message. 2016-09-16 22:18:24 +02:00
Daniel Marjamäki 24c6d92667 astyle formatting
[ci skip]
2016-08-29 04:08:38 +02:00
Daniel Marjamäki 939b42df06 Fixed #7134 (False positive redundantAssignment - assignment to local variable of unknown type) 2016-08-29 03:48:08 +02:00
orbitcowboy 87409ea6b3 Running astyle; Improved testing of std::find; std.cfg: Added support for istream::read and ifstream::read. 2016-08-25 19:17:07 +02:00
Roberto Martelloni 1db24ee070 CWE mapping of signedCharArrayIndex, unknownSignCharArrayIndex, suspiciousCase, suspiciousEqualityComparison, duplicateBranch, duplicateExpressionTernary, suspiciousSemicolon, incompleteArrayFill, redundantPointerOp, unusedLabelSwitch, unusedLabel, unknownEvaluationOrder, stlIfFind, useAutoPointerCopy 2016-08-25 15:40:23 +01:00
Roberto Martelloni 01ee9ee5e6 CWE mapping of invalidLengthModifierError, leakUnsafeArgAlloc, nullPointerDefaultArg, nullPointerRedundantCheck, raceAfterInterlockedDecrement. 2016-08-24 15:37:14 +01:00
Daniel Marjamäki bd21cd7c85 Fixed #6309 (FP: checkRedundantAssignment should not warn for pointer alias) 2016-08-08 21:43:00 +02:00
PKEuS ad96f7b519 Fixed wrong variable being used in CheckOther::checkPassByReference() 2016-08-04 15:30:59 +02:00
PKEuS 452ecc7ceb Improved check: Detect passedByValue even for arguments that are not declared as "const" 2016-07-28 19:37:10 +02:00
Daniel Marjamäki 0767284ca1 Fixed #7630 (FP: dead store, modifying array, index var modified) 2016-07-25 07:35:33 +02:00
Daniel Marjamäki 03d2829fb9 Merge simplecpp branch 2016-07-20 12:21:00 +02:00
Daniel Marjamäki f55040a987 Fix segfault when there is no ast generated in lambda function 2016-07-18 14:08:44 +02:00
Daniel Marjamäki 0ddeac0429 refactor (use ast) and improve CheckOther::checkRedundantAssignment (warn about global variables unless they are volatile, handle arrays in lhs better) 2016-07-18 12:43:23 +02:00
PKEuS 7a183779e2 CheckOther::checkMemsetZeroBytes(): Support wmemset() 2016-07-16 21:53:25 +02:00
Daniel Marjamäki d1f06ff47c Fixed #7175 (False positive performance warning (buffer overwritten before its old content has been used)) 2016-06-13 15:46:43 +02:00
Roberto Martelloni dce7128f30 CWE mapping of duplicateExpression, duplicateBreak (CWE561), unreachableCode, unsignedLessThanZero, unsignedPositive, pointerLessThanZero, pointerPositive, varFuncNullUB, nanInArithmeticExpression, commaSeparatedReturn, (#797)
ignoredReturnValue
2016-05-22 13:17:38 +02:00
Roberto Martelloni afa8ad0ebe CWE mapping of selfAssignment, wrongmathcall, unpreciseMathCall, memsetZeroBytes, memsetFloat, memsetValueOutOfRange, clarifyCalculation, clarifyStatement 2016-05-14 10:13:33 +01:00
PKEuS 0bf85f9aa5 ValueType: Support integers defined in libraries (#7394) 2016-05-04 15:39:56 +02:00
Roberto Martelloni 01aaa56740 CWE mapping of redundantCopy, redundantAssignment, constStatement, charBitOp, variableScope, redundantAssignInSwitch, redundantCopyInSwitch, switchCaseFallThrough 2016-04-29 18:01:37 +01:00
Daniel Marjamäki dc2a92263a Fixed #7426 (RFC: time to replace simplifyEnum?) 2016-04-22 06:02:54 +02:00
Daniel Marjamäki 00a584d8d1 astyle formatting 2016-04-22 06:01:34 +02:00
Roberto Martelloni e89cd1b8a4 CWE mapping of unsafeClassCanLeak, zerodivcond, invalidPointerCast, redundantCopy, redundantAssignment, comparisonFunctionIsAlwaysTrueOrFalse, checkCastIntToCharAndBack, cstyleCast, passedByValue, clarifyCondition, exceptThrowInDestructor, exceptDeallocThrow, exceptRethrowCopy, catchExceptionByValue, fflushOnInputStream, seekOnAppendedFile, publicAllocationError
CWE mapping of unsafeClassCanLeak, zerodivcond, invalidPointerCast, redundantCopy, redundantAssignment, comparisonFunctionIsAlwaysTrueOrFalse, checkCastIntToCharAndBack, cstyleCast, passedByValue, clarifyCondition, exceptThrowInDestructor, exceptDeallocThrow, exceptRethrowCopy, catchExceptionByValue, fflushOnInputStream, seekOnAppendedFile, publicAllocationError
2016-04-12 19:29:40 +02:00
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
Dmitry-Me c3399493ef Portability warning when 'char' type is used as array index 2016-02-08 10:08:35 +03:00
PKEuS b3a0d418e6 Refactorization: Compare only as much characters as necessary in Preprocessor
Fixed internal message
2016-02-05 21:06:07 +01:00
PKEuS c66db46f66 Use ValueType in CheckOther::checkSignOfUnsignedVariable()
Fixed travis: replaced std::string::pop_back by std::string::substr
2016-02-05 20:43:06 +01:00
PKEuS b4b38fb7ce Use ValueType in CheckOther::invalidPointerCast()
False negative: operator new is currently not supported by ValueType.
2016-02-05 20:28:43 +01:00
PKEuS 841f17776b Set ValueType for assignment operators, detect division by zero for %= and /= again (#7322) 2016-02-02 17:17:55 +01:00
PKEuS 9d2258677d Improved CheckOther::checkUnusedLabel(): Write a warning instead of a style message if it happens inside a switch() 2016-01-31 12:07:24 +01:00
Daniel Marjamäki 5e10e680da CWE: refactoring. use constants instead of magic numbers. 2016-01-25 20:01:48 +01:00
Roberto Martelloni 5ce69da02d Mapped 26 errors to their CWEs ID. 2016-01-24 20:53:05 +00:00
Daniel Marjamäki 79aec559d5 Fixed #7243 (False positive unknownEvaluationOrder - comma operator inside while-clause) 2016-01-18 16:10:51 +01:00
Matthias Krüger 7b1710a44f redundantAssignment: change from severity 'performance' to 'style' since avoiding unneccessary stores is a basic optimization done by compilers. 2016-01-15 22:01:40 +01:00
Matthias Krüger e9e496199c CheckOther::memsetZeroBytesError: remove now unused parameter.
was:
lib/checkother.cpp:1116:76: warning: unused parameter ‘varname’ [-Wunused-parameter]
 void CheckOther::memsetZeroBytesError(const Token *tok, const std::string &varname)
                                                                            ^
2016-01-12 23:55:02 +01:00
Alexander Mai 7802517a69 #7285 wrong var name: memset() called to fill 0 bytes of '&' memset with pointer: remove var name from message. Correct some entries in posix.cfg. 2016-01-12 23:20:48 +01:00
Daniel Marjamäki b2386fa011 minor refactoring, use 'else if' when appropriate 2016-01-06 15:49:44 +01:00
Lauri Nurmi 996c9244d8 Update copyright year to 2007-2016. 2016-01-01 15:34:45 +02:00
Daniel Marjamäki 8171154e12 Fixed #7230 (Confusing code snippet in error message) 2015-12-31 01:15:49 +01:00
Daniel Marjamäki bd1037e95b Fixed #7242 (False positive unknownEvaluationOrder - comma expression in function argument) 2015-12-29 12:06:42 +01:00
Daniel Marjamäki 0ddb5c12ce Fixed #7238 (False positive unknownEvaluationOrder for comma operator on C code) 2015-12-28 13:45:55 +01:00
Daniel Marjamäki 908bc664a4 Evaluation order: ignore usage in sizeof 2015-12-27 14:08:16 +01:00
Daniel Marjamäki c672210e06 Evaluation order: don't warn for 'dostuff(expr++, &expr)' 2015-12-26 15:48:43 +01:00
Daniel Marjamäki e6ff77d825 Evaluation order: Don't use this checker on C++11 code 2015-12-25 18:57:59 +01:00
Daniel Marjamäki 90148ce2a1 Evaluation order: Only use this checker on non-C++11 code 2015-12-25 18:49:34 +01:00
Daniel Marjamäki 55779a5772 Evaluation order: Only use this checker on non-C++11 code 2015-12-25 18:45:46 +01:00
Daniel Marjamäki 24438c326e Fixed #7233 (Fasle negative 'unknownEvaluationOrder in case of macro) 2015-12-25 18:31:21 +01:00
Daniel Marjamäki 27af1bcfd8 Fixed #7229 (Improve check; unknown evaluation order, write different message for self assignment) 2015-12-25 18:00:19 +01:00
Daniel Marjamäki 90a54b1fae Fixed #7232 (False positive unknownEvaluationOrder on id = Remap( id += 42 );) 2015-12-25 16:45:11 +01:00
PKEuS 940d569980 Refactorization: Removed redundant %any% patterns. 2015-12-24 14:40:48 +01:00
Daniel Marjamäki 81f0597316 Fixed #3206 and #7226 (New check: Undefined execution order) 2015-12-24 09:13:20 +01:00
Daniel Marjamäki 0baad496f2 Fixed #6383 (FP shiftNegative - value converted to unsigned in function argument) 2015-12-14 10:55:23 +01:00
PKEuS 57e9954390 Merge pull request #715 from Dmitry-Me/eliminateRepeatedLookup3
Remove repeated lookup
2015-12-07 10:47:37 +01:00
Dmitry-Me f00a73f1a1 Remove repeated lookup 2015-12-07 11:57:04 +03:00
Alexander Mai 9d8dffbd79 #6269 false positives in case of overloaded standard library functions. Detect memset() with proper argument cound, using new function numberOfArguments() 2015-12-06 12:50:05 +01:00
PKEuS b8d39a2229 Refactorizations:
- Improve performance of simplifyTypedef by using Token::simpleMatch by ~15%
- Simplified code in simplifyTypedef
- Ran AStyle
2015-12-02 23:32:50 +01:00
Dmitry-Me 0a3959f201 Remove duplicate check 2015-12-02 17:28:21 +03:00
Dmitry-Me 8f8a0097fe Detect more non-interlocked accesses 2015-12-02 10:58:57 +03:00
Daniel Marjamäki fb8cce647c invalidTestForOverflow: Refactor; move from checkother to checkcondition 2015-11-30 08:51:15 +01:00
Daniel Marjamäki f6f4f27636 CheckOther::checkInvalidTestForOverflow: minor fix, only warn when warnings are enabled. 2015-11-29 22:03:42 +01:00
Daniel Marjamäki 26a07265a8 Fixed #7184 (Invalid test for overflow 'p + x < p') 2015-11-29 20:59:50 +01:00