9b973e652c
Issue 8830: New check: Function argument evaluates to constant value
...
Add a check for function arguments that can be constant:
```cpp
extern void bar(int);
void f(int x) {
bar((x & 0x01) >> 7); // function 'bar' is always called with a '0'-argument
}
```
2018-12-17 06:04:24 +01:00
6734571f06
Refactoring: Create FwdAnalysis class in astutils
2018-12-02 17:01:52 +01:00
88785dda02
Refactoring the redundant assignments check
2018-12-02 11:41:27 +01:00
866688c70a
Rewriting redundantAssignment checker
2018-11-24 10:03:54 +01:00
a8cbbe0e16
Fixed #8816 (FP shadowLocal - variable shadows a template function?)
2018-11-19 07:00:15 +01:00
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
58d1de5814
Expand the duplicate variable assignment warnings when the inconclusive flag is used ( #1433 )
...
* Warn for more duplicate var expressions when inconclusive is set
* Fix issue with missing function name
2018-10-17 06:57:33 +02:00
1245a036f7
Add check for shadow variables
2018-10-16 20:17:27 +02:00
936c627307
Fix --doc output. * must be escaped.
2018-10-11 13:59:21 +02:00
d66c92edc3
Remove unused parameters for CheckOther::oppositeExpressionError ( #1412 )
2018-10-05 08:36:49 +02:00
e170a45230
Enable followVar for opposite expressions ( #1404 )
...
Enable followVar for opposite expressions
2018-10-04 21:17:47 +02:00
4598995564
Enable followVar for duplicate ternary expressions ( #1406 )
2018-10-01 14:31:06 +02:00
bbf876256c
Add error path to more diagnostics that rely on isSameExpression ( #1342 )
2018-08-17 09:25:07 +02:00
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
2018-08-07 09:32:16 +02:00
0b65a52224
Add some missing errors to --errorlist output. ( #1292 )
...
Partly fixes https://trac.cppcheck.net/ticket/7772 .
2018-06-20 10:43:13 +02:00
45379a3aa6
Updated copyright year for modified files
...
[ci skip]
2018-06-10 22:07:21 +02:00
ce50df8047
Fix override warnings. ( #1234 )
2018-05-15 16:37:40 +02:00
d939c6015a
Report opposite expressions ( #1182 )
...
* Report opposite expressions
* Skip assignment operator
2018-04-21 11:28:21 +02:00
d5fb529d4f
Fixed #8492 (Improve message: parameter should be passed by reference)
2018-04-20 17:33:42 +02:00
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
b6504c70ca
Improve constness
2018-04-04 21:51:31 +02:00
bce5fe5cef
Improve duplicate expressions in the ternary op by checking for equal values as well ( #1134 )
...
* Improve duplicate expressions in the ternary op by checking for equal values as well
* Use value instead of expression
2018-04-03 21:43:55 +02:00
c4caee6b18
Updated copyright year
2018-01-14 15:37:52 +01:00
fbccb3ae55
Add errorpath for accessMoved message
2017-10-10 15:49:15 +02:00
b8cd7dbb5c
Use nullptr instead of 0 or NULL ( #936 )
2017-08-09 20:00:26 +02:00
28aa939d69
iwyu - include what you use
2017-05-27 04:33:47 +02:00
8d75d1b920
Partial fix for #8028 (ValueFlow: Origin/callstack of value)
2017-05-15 20:05:11 +02:00
101dc28afa
Refactoring: Moved checkMemset.. from CheckOther to CheckFunctions
2017-04-23 07:53:41 +02:00
79010eecea
lib: fix a bunch of warnings about differing function arguments in definition and declaration.
...
[lib/token.h:72] -> [lib/token.cpp:36]: (style, inconclusive) Function 'Token' argument 1 names different: declaration 'tokensBack' definition 't'.
[lib/token.h:445] -> [lib/token.cpp:497]: (style, inconclusive) Function 'multiCompare' argument 1 names different: declaration 'needle' definition 'tok'.
[lib/checkio.h:73] -> [lib/checkio.cpp:1385]: (style, inconclusive) Function 'ArgumentInfo' argument 3 names different: declaration 'isCPP' definition '_isCPP'.
[lib/checkother.h:216] -> [lib/checkother.cpp:2136]: (style, inconclusive) Function 'checkComparisonFunctionIsAlwaysTrueOrFalseError' argument 2 names different: declaration 'strFunctionName' definition 'functionName'.
[lib/errorlogger.h:214] -> [lib/errorlogger.cpp:51]: (style, inconclusive) Function 'ErrorMessage' argument 2 names different: declaration 'file0' definition 'file0_'.
[lib/errorlogger.h:215] -> [lib/errorlogger.cpp:65]: (style, inconclusive) Function 'ErrorMessage' argument 2 names different: declaration 'file0' definition 'file0_'.
[lib/library.h:327] -> [lib/library.cpp:1043]: (style, inconclusive) Function 'ignorefunction' argument 1 names different: declaration 'function' definition 'functionName'.
[lib/mathlib.h:112] -> [lib/mathlib.cpp:1275]: (style, inconclusive) Function 'isNullValue' argument 1 names different: declaration 'tok' definition 'str'.
[lib/preprocessor.h:91] -> [lib/preprocessor.cpp:122]: (style, inconclusive) Function 'setDirectives' argument 1 names different: declaration 'tokens' definition 'tokens1'.
[lib/symboldatabase.h:860] -> [lib/symboldatabase.cpp:1801]: (style, inconclusive) Function 'argsMatch' argument 1 names different: declaration 'info' definition 'scope'.
[lib/symboldatabase.h:1171] -> [lib/symboldatabase.cpp:2048]: (style, inconclusive) Function 'addClassFunction' argument 1 names different: declaration 'info' definition 'scope'.
[lib/symboldatabase.h:1174] -> [lib/symboldatabase.cpp:2208]: (style, inconclusive) Function 'addNewFunction' argument 1 names different: declaration 'info' definition 'scope'.
[lib/symboldatabase.h:1090] -> [lib/symboldatabase.cpp:3648]: (style, inconclusive) Function 'findVariableType' argument 2 names different: declaration 'type' definition 'typeTok'.
[lib/symboldatabase.h:1101] -> [lib/symboldatabase.cpp:4308]: (style, inconclusive) Function 'findType' argument 1 names different: declaration 'tok' definition 'startTok'.
[lib/symboldatabase.h:1176] -> [lib/symboldatabase.cpp:4349]: (style, inconclusive) Function 'findTypeInNested' argument 1 names different: declaration 'tok' definition 'startTok'.
[lib/symboldatabase.h:1193] -> [lib/symboldatabase.cpp:4501]: (style, inconclusive) Function 'setValueType' argument 2 names different: declaration 'enumerators' definition 'enumerator'.
[lib/path.h:159] -> [lib/path.cpp:247]: (style, inconclusive) Function 'isCPP' argument 1 names different: declaration 'extensionInLowerCase' definition 'path'.
[lib/path.h:145] -> [lib/path.cpp:266]: (style, inconclusive) Function 'acceptFile' argument 1 names different: declaration 'filename' definition 'path'.
2017-04-03 00:06:46 +02:00
f5d56fd303
Fixed #7961 (Hang in CheckOther::checkFuncArgNamesDifferent)
2017-03-24 22:01:05 +01:00
139071d88b
Fixed #7875 (New check: function declaration and definition argument names don't match)
2017-01-05 08:52:11 +01:00
df6ae9f3b4
Fixed #7847 (Can't detect shift negative values when some op is executed)
2016-12-22 09:40:19 +01:00
c8ff96fe8f
Fixed #6180 (Usage of variable after std::move or std::forward)
2016-11-20 15:14:49 +01:00
452ecc7ceb
Improved check: Detect passedByValue even for arguments that are not declared as "const"
2016-07-28 19:37:10 +02:00
03d2829fb9
Merge simplecpp branch
2016-07-20 12:21:00 +02:00
eba1b0881d
Minor refactoring: use nullptr (instead of 0/NULL), change signature of Tokenizer::createTokens
2016-05-07 16:30:54 +02:00
c3399493ef
Portability warning when 'char' type is used as array index
2016-02-08 10:08:35 +03:00
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
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
996c9244d8
Update copyright year to 2007-2016.
2016-01-01 15:34:45 +02:00
32455e8441
Fixed #7214 (ValueType: does not handle static_cast)
2015-12-26 15:20:17 +01:00
81f0597316
Fixed #3206 and #7226 (New check: Undefined execution order)
2015-12-24 09:13:20 +01:00
fb8cce647c
invalidTestForOverflow: Refactor; move from checkother to checkcondition
2015-11-30 08:51:15 +01:00
26a07265a8
Fixed #7184 (Invalid test for overflow 'p + x < p')
2015-11-29 20:59:50 +01:00
4fa888ec44
Warn when shifting a negative value, it is UB. ( #4931 )
2015-11-29 16:28:55 +01:00
f516de8633
Moved a few checks from CheckOther to CheckFunctions
2015-11-22 13:49:10 +01:00
0f9d90d2be
Changed Copyrights. Removed my name.
2015-11-18 20:04:50 +01:00
c5a8ecb6f9
New check: Detect unused 'goto' labels ( #5124 )
2015-08-30 16:45:47 +02:00
1a266315f1
Removed some unused code
2015-08-15 19:17:25 +02:00
eec5e1722b
Remove unimplemented method
2015-08-10 18:02:49 +03:00
ec3d76be5e
astyle formatting
2015-08-07 20:27:32 +02:00
53feb88614
Merge pull request #630 from Dmitry-Me/detectRaceInInterlockedAccess
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Prototype for detecting non-interlocked check after InterlockedDecrement()
2015-08-06 15:43:10 +02:00
43800a9419
Detect non-interlocked check after InterlockedDecrement()
2015-08-05 12:20:28 +03:00
e598b07a6d
Moved functions to astutils
2015-08-03 09:20:50 +02:00
96c3c111fc
Refactoring: Move some AST related functions to distinct source file
2015-08-02 21:57:32 +02:00
389aec51ae
Fixed #6598 (False positive zerodivcond - cast to double ignored)
2015-07-26 22:08:36 +02:00
649a89d308
Refactoring: Expose some previously local functions to public and add Tokenizer as argument to distinguish between C and C++ code (e.g. in isSameExpression).
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Refactoring: Improve type-safety for TestFixture::assertEquals to allow tests with types which were not handled correctly (e.g. unsigned long long)
2015-06-28 12:08:36 +02:00
0a6babea74
#6181 Drop redundantGetAndSetUserId. Ensure (style-) warnings are issued if setuid()/getuid() and some related functions are ignored. Move strdupa()/strndupa() from posix.cfg to gnu.cfg
2015-02-16 22:19:51 +01:00
0488f45a5f
Removed standalone check CheckOther::checkDoubleFree(), integrated (most of) the functionality into CheckLeakAutoVar. Added support for new/delete to checkLeakAutoVar.
2015-01-28 17:38:43 +01:00
3285f85ebf
Fixed #6460 (Library: better function/type matching)
2015-01-27 17:55:18 +01:00
58cb6cc116
Add new "style" check to catch redundant pointer operations
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Doing "&*some_ptr_var" is redundant and might be the remainder
of a refactoring. Warnings for expanded macros are excluded though:
They are often used with and without pointers and
do something like this: "func(&(*macroarg))".
The new check is fully AST based and was given
strong false positive testing on a large code base.
2015-01-18 00:34:07 +01:00
267552779d
Improved check ( #6391 ): Detect identical code in both branches of ternary operator
2015-01-03 18:01:49 +01:00
bb9ce68354
Refactorization: Reduced chaos in CheckOther::classInfo()
2015-01-03 18:00:16 +01:00
ff11ba9847
Updated copyright year to 2015
2015-01-03 12:14:58 +01:00
051d42ae6b
astyle formatting
2014-11-20 14:20:09 +01:00
f5d804f71a
running astyle
2014-11-20 10:13:03 +01:00
b5ea677180
Some fixes for CheckOther::checkIgnoredReturnValue():
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- Fixed name of the function
- Fixed false positive for code like "class strcmp { strcmp() {} };"
- Fixed FP #6233 on checking side (no AST generated for function call)
2014-10-30 23:24:13 +01:00
fbc6323a9b
doc: changed --doc output to Markdown syntax
2014-09-30 14:56:12 +02:00
210294443e
New check: Check for unused return values ( #653 )
2014-09-27 21:31:04 +02:00
0e55f12140
Fixed #6165 (Remove old checkUnsignedDivision checker that uses neither AST nor ValueFlow. The CheckType::checkSignConversion should be much more accurate)
2014-09-12 16:59:16 +02:00
7847263451
Fixed #6158 (New check: dangerous sign conversion)
2014-09-11 18:10:19 +02:00
974c8688c3
Fixed #1751 (Undefined Behavior: Signed integer overflow)
2014-09-10 17:02:18 +02:00
a36b0e55be
CheckOther::checkTooBigBitwiseShift: improving error messages
2014-09-09 17:06:45 +02:00
f111a89639
Fixed #1757 (Undefined Behavior: Shift too many bits)
2014-09-09 07:24:59 +02:00
ff4fc6a234
New check: Recommend expm1, log1p, erfc ( #5392 )
2014-09-07 11:38:49 +02:00
a4ff30301a
#5805 'Passing value -1.0 to sqrt() leads to undefined result' is incorrect. Degrade wrongmathcall from error to warning, since it deals with implementation-defined behaviour
2014-09-01 19:31:32 +02:00
06a92e8981
Moved several condition checks from checkOther to checkCondition (former checkAssignIf)
2014-08-29 17:06:46 +02:00
eba8c6f6c5
Refactorization:
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- Added missing separating comments between checks in checkother.cpp
- Moved checks related to strings into own file
2014-08-27 09:42:09 +02:00
8f79dc3ff8
Cleaned up includes and forward declarations in checkers:
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- Removed definitely unnecessary forward declarations (e.g. "class Token"; token.h is already included by check.h, so a definition is unnecessary)
- Removed unused includes
2014-05-24 12:50:03 +02:00
d19eabde42
New Check: Compare pointer with '\0' ( #4070 )
2014-05-21 19:12:07 +02:00
cdfed32500
Merged checkSelfAssignment() into checkDuplicateExpression():
...
- Fixed false negatives on self assignments of more complex expressions like "a.b"
- New false negative on self assignment in initialization
- Support this->... pattern in isSameExpression()
- Fixed #5819 : Check type of operands
2014-05-21 18:19:42 +02:00
5e996bc63b
Fix redundantConditionError check description
2014-05-07 14:54:50 +02:00
dfd9d32c4b
Refactorization: Removed whitespaces at the end of a token
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Removed a redundant 'void'
2014-04-12 23:41:46 +02:00
8dcb3bae47
Refactoring checks of overlapping conditions in if and else-if
2014-04-03 19:35:50 +02:00
50a94885ce
Fixed oppositeInnerCondition check:
...
- Resolved false positives #4170 and #4186 , as well as numerous other potential false positives
- Improved message to point to both locations
- Inner condition could also be a while loop; Outer if could also be 'else if'
- Made the check non-experimental again (#3645 )
2014-03-28 14:55:17 +01:00
54e7f34f4a
Fixed #5584 (FP: Division by zero when function not declared)
2014-03-20 16:12:58 +01:00
052840f8f5
Fixed #4818 (New check: Check memset() 2nd parameter)
2014-02-15 15:06:00 -03:00
fd3a8a2a18
Update copyright
2014-02-15 07:45:39 +01:00
3facc06cb7
CheckOther: Removed non-valueflow check for division by possible zero before condition
2014-01-17 17:42:54 +01:00
ac30a84c3a
Refactoring: Replaced CheckOther::checkCCTypeFunctions with configuration
2013-12-23 19:58:33 +01:00
76b907fe65
Fixed #5252 (Improve check: use Library to validate function arguments in invalidFunctionUsage)
2013-12-23 10:06:45 +01:00
83066edec0
Code cleanup
2013-12-10 06:29:06 +01:00
babbee4e73
Fixed typos in comments, no functional changes.
2013-11-09 16:07:28 +01:00
677257f569
Fixed clang warning: lib/checkother.h:360:80: warning: implicit conversion turns string literal into.
2013-09-30 10:43:21 -07:00
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
83c460fc56
Fixed #5017 (New check: division by zero, otherwise condition is redundant)
2013-09-07 07:40:10 +02:00
9ab6655d85
Fixed #5007 (Same include guard naming)
2013-09-04 20:59:49 +02:00
a9a5dc0354
Updated to AStyle 2.03, require this version
2013-08-07 16:27:37 +02:00
d85c8e6782
Fixed #4104 (New check: comma separated statements in return statement from a function)
2013-06-15 17:49:10 +02:00
28c0045f36
Fixed #4173 : New check: arithmetical usage of inf/nan result
2013-06-09 23:13:08 -07:00
Paul Fultz II
Daniel Marjamäki
Carlo Marcelo Arenas Belon
Sebastian
IOBYTE
jrp2014
Ayaz Salikhov
Ayaz Salikhov
Matthias Krüger
Frank Zingsheim
PKEuS
amai2012
Dmitry-Me
Lauri Nurmi
amai2012
PKEuS
Thomas Jarosch
orbitcowboy
PKEuS
Massimo Paladin
Lucas Manuel Rodriguez
Martin Ettl
Abhishek Bharadwaj
Zachary Blair