Daniel Marjamäki
5d10b57b04
Fixed #8997 (False positive redundantAssignment when pointer is updated with +=)
2019-05-31 12:24:31 +02:00
orbitcowboy
79ab9cf84d
Running astyle [ci skip].
2019-05-31 10:14:52 +02:00
Paul Fultz II
108cdaa485
Fix FP with unreadVariable ( #1859 )
2019-05-31 08:06:36 +02:00
Rikard Falkeborn
ada881ccdf
Fix #9130 (FP memory leak with NULL pointer cast) ( #1839 )
2019-05-18 06:22:25 +02:00
Daniel Marjamäki
fd4e371091
Refactoring: Use stl algorithm
2019-04-28 07:40:00 +02:00
Daniel Marjamäki
253f2c9e9d
Fixed #9043 (false positive & regression: Variable '*s' is reassigned a value before the old one has been used.)
2019-04-16 19:07:26 +02:00
Paul Fultz II
a90caa7e5a
Fix issue 9006: False positive: Return value of function std::move() is not used.
...
This is trying to fix the issue by fixing the ast and symbol database. First, the ast nodes will be created for the init list and the symbol database will not mark it as a scope. I am not sure if this is the correct approach as I dont really understand how the AST part works.
It did change the AST for `try {} catch (...) {}` but that is because it incorrectly treats `try {}` as an initializer list.
2019-04-15 06:37:27 +02:00
Daniel Marjamäki
51b64191e5
Fixed slow checking in FwdAnalysis
...
Credit to OSS-Fuzz for reporting this!
2019-03-30 14:22:24 +01:00
Sebastian
29815b2dd8
Fix #8922 (SIGSEGV below exprDependsOnThis - stack overflow?) ( #1761 )
...
This limits the recursion depth as a last line of defense to avoid stack
overflows when there are really huge arrays.
See https://trac.cppcheck.net/ticket/8922
2019-03-26 18:57:01 +01:00
Daniel Marjamäki
7995b2fb86
getArguments: Avoid too deep recursion in array initialization
2019-03-24 11:51:28 +01:00
Daniel Marjamäki
418eb43d45
Fixed #9032 (False-positive detection of reassigned value before used for pointer parameter)
2019-03-23 19:01:02 +01:00
Paul Fultz II
774464eabb
Fix issue 8996: False positive duplicateCondition
...
This fixes issue 8996 by improving the alias checking by using lifetime analysis. It also extends the lifetime checker to handle constructors and initializer lists for containers and arrays.
2019-03-19 06:25:10 +01:00
Sebastian
0934577dda
Library configuration: function argument direction fixes and enhancements ( #1722 )
...
* std.cfg: Add further argument directions (in, out, inout).
* testlibrary.cpp: Add test for function argument direction configuration.
* std.cfg: runastyle and add some more direction configurations.
* library.h: Add documentation for function argument direction enum.
* Do not use "direction" library information for pointer arguments.
Also fix further unmatched uninitvar messages in std configuration
tests.
* std.cfg: Add more argument direction configurations.
* test/cfg/std.c: Add test for argument direction configuration.
* astutils.cpp: Only ignore pointer arguments for out/inout arguments.
* library.h: Use suggested documentation for argument direction enum.
2019-03-04 22:57:40 +01:00
Sebastian
9a5fcddb5d
Library configuration: Enable configuring the direction of arguments. ( #1717 )
...
This enhances the library configuration so the direction of function
arguments can be specified (in, out, inout).
isVariableChangedByFunctionCall() uses this information now to avoid
guessing.
2019-03-01 15:47:08 +01:00
Daniel Marjamäki
845c407ab7
Fixed pattern matching in isVariableChanged() to handle normal token list better
2019-03-01 13:23:03 +01:00
Daniel Marjamäki
4f5a426fe5
Improved isVariableChangedByFunctionCall, better logic when parameter might be passed by reference
2019-02-28 17:02:46 +01:00
Daniel Marjamäki
494dd2ba3a
Revert "Improved isVariableChangedByFunctionCall, better logic when parameter might be passed by reference"
...
This reverts commit 14a0031e88
.
2019-02-28 15:56:25 +01:00
Daniel Marjamäki
14a0031e88
Improved isVariableChangedByFunctionCall, better logic when parameter might be passed by reference
2019-02-28 10:26:47 +01:00
Daniel Marjamäki
857681a049
Make quick fix for uninitialized variable false positive. Will look more at this soon.
2019-02-28 09:52:52 +01:00
Paul Fultz II
941dd79f0d
Fix FP issue 8986: constArgument check warns for elements of const array ( #1683 )
2019-02-22 06:39:59 +01:00
Daniel Marjamäki
bd7790fd8c
Update copyright year
2019-02-09 07:24:06 +01:00
Paul Fultz II
d7c20b15e7
Fix FP with const argument when doing a variable and cast ( #1649 )
2019-02-07 14:59:09 +01:00
Daniel Marjamäki
8c07be136a
Fixed #8949 (False Positive: Variable 'f' is assigned a value that is never used.)
2019-01-22 21:16:27 +01:00
Daniel Marjamäki
d50c3de740
Remove inline suppression and fix false positive.
2019-01-13 07:59:41 +01:00
Daniel Marjamäki
2b1b8f8fe9
Fix Cppcheck warnings
...
[ci skip]
2019-01-12 18:29:08 +01:00
Daniel Marjamäki
0f9ce5edd5
Fixed #8365 (False positive on memory leak when assigned inside if statement)
2019-01-08 20:54:39 +01:00
Daniel Marjamäki
2b63997c2c
Fixed #8928 (false positive: (style) Variable 'x' is assigned a value that is never used.)
2019-01-02 20:23:02 +01:00
Daniel Marjamäki
236c88151f
Fixed #8926 (false positive: (style) Condition 's.x<=y' is always true)
2019-01-02 18:05:55 +01:00
Daniel Marjamäki
115be7dfc8
ValueFlow: better FwdAnalysis for complex expressions
2019-01-01 18:23:47 +01:00
Daniel Marjamäki
a73e989d1a
isConstVarExpression: Fix FPs when there is C++ cast
2019-01-01 11:34:44 +01:00
Daniel Marjamäki
ed514644b8
Renamed FwdAnalysisAllPaths to FwdAnalysis
2018-12-31 18:00:47 +01:00
Daniel Marjamäki
141ce7cd63
ValueFlow: Use FwdAnalysisAllPaths in ValueFlow to track complex expressions
2018-12-31 17:05:46 +01:00
rikardfalkeborn
036fcf7827
Fix warnings ( #1541 )
...
* Fix reorder warning
* Fix override warnings
Clang warns about missing overrides.
* Remove unused function
* Add missing argument to function calls
2018-12-28 12:59:05 +01:00
Daniel Marjamäki
6fef02498c
Fixed #7263 (False negative: redundant assignment using +=)
2018-12-27 17:27:53 +01:00
Daniel Marjamäki
ddbe5c129c
Clarify FwdAnalysis. It is useful for checks that need data flow analysis of ALL paths.
2018-12-25 11:56:06 +01:00
Daniel Marjamäki
e2c433a0f8
Fixed #8914 (False positive with unary_function argument)
2018-12-19 19:43:05 +01:00
Daniel Marjamäki
bf4e850e11
Fixed #4475 (New check: struct member is assigned a value that is not read)
2018-12-17 15:40:15 +01:00
Daniel Marjamäki
858d9a18a7
Fixed #3857 (false negative: (style) Variable 'var' is assigned a value that is never used)
2018-12-17 15:16:47 +01:00
Paul Fultz II
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
Daniel Marjamäki
c8d688607a
Fixed #8901 (Unused value: const variable initialization)
2018-12-16 19:01:05 +01:00
Daniel Marjamäki
21eb1c5e22
FwdAnalysis: Fix false negatives for struct members
2018-12-16 18:32:34 +01:00
Daniel Marjamäki
46a0172480
FwdAnalysis: fix FP in loop
2018-12-16 16:43:04 +01:00
Daniel Marjamäki
97d2075007
FwdAnalysis: better handling of loops
2018-12-16 11:42:11 +01:00
Daniel Marjamäki
3af0d73f82
Unused value: Fixed false negatives for loops
2018-12-16 11:18:37 +01:00
Daniel Marjamäki
1bfe98447a
FwdAnalysis: Tweak possiblyAliased
2018-12-15 11:54:00 +01:00
Daniel Marjamäki
37416010ef
Unused value: Fix false positive (ast, {})
2018-12-14 18:56:09 +01:00
Paul Fultz II
be6782d386
Fix FP 8891: Incorrect return scope when using uniform initialization
...
This fixes the FP in:
```cpp
std::string f(const std::string& data)
{
if (data.empty())
return {};
data[0];
}
```
2018-12-14 18:31:10 +01:00
Daniel Marjamäki
8464085535
UnusedVariables: Fix FP for unknown variable
2018-12-13 21:37:21 +01:00
Daniel Marjamäki
092d434f91
UnusedVar: Fix FP for array arguments
2018-12-13 21:08:18 +01:00
Daniel Marjamäki
1f27cd56c0
FwdAnalysis; Code cleanup, isNullOperand
2018-12-13 21:01:33 +01:00