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
Daniel Marjamäki
0b4e08cac9
Use FwdAnalysis in UnusedVar. This is still work-in-progress. Merging to master branch so it can be tested.
2018-12-13 18:52:56 +01:00
Daniel Marjamäki
452318dfa4
Remove FwdAnalysis::reads: It is not finished
2018-12-04 18:46:23 +01:00
Daniel Marjamäki
c03c262058
Preparing FwdAnalysis for ValueFlow usage where we want to fetch read locations
2018-12-02 18:29:16 +01:00
Daniel Marjamäki
d8fada6702
Refactoring FwdAnalysis
2018-12-02 17:42:18 +01:00
Daniel Marjamäki
6734571f06
Refactoring: Create FwdAnalysis class in astutils
2018-12-02 17:01:52 +01:00
Daniel Marjamäki
ecb3c04fba
astutils: Add function that visits nodes in AST tree
2018-11-23 06:53:43 +01:00
Paul Fultz II
7ef119cbfc
Fix FPs in lifetime checker
...
This fixes several FPs in the lifetime checker. It also fixes issue [8846](https://trac.cppcheck.net/ticket/8846 ):
```cpp
int * f(int a[])
{
return a;
}
```
2018-11-17 09:41:59 +01:00
Paul Fultz II
54453c5802
Fix FP when copying pointer to string ( #1479 )
2018-11-14 06:59:25 +01:00
Paul Fultz II
0e11bb07c8
Extend lifetime analysis to pointer usage ( #1477 )
...
* Use lifetime analysis for pointers as well
* Fix issue 1143: Pointer to local array
* Update message when using pointers
* Avoid infinite loop in tracing lifetimes
2018-11-12 10:08:17 +01:00
Paul Fultz II
68d6b96878
Diagnose invalid lifetimes ( #1475 )
...
* Add check for invalid lifetimes
* Fix FP with member variables
* Dont forward lifetime values in subfunction
* Update message to use out of scope
2018-11-11 16:43:54 +01:00
Daniel Marjamäki
d5a478d5c5
astyle formatting
...
[ci skip]
2018-11-10 21:30:01 +01:00
Paul Fultz II
1ffcc6b730
Add initial lifetime checker ( #1448 )
...
* Inital valueflow lifetime checker
* Forward values
* Add initial tests
* Fix deplicate messages
* Fix traversing nested lambdas
* Turn test case into a todo
* Skip if returning a container
* Fix FP when using references
* Add missing header
* Fix FP from broken scopes
* Fix FP with static variable
* Add test for more FPs
* Parse lambda functions
* Check for capture by value
* Add tests for using a container and lambda together
* Fix cppcheck errors
* Add test for nextAfterAstRightmostLeaf
* Add valueflow tests
* Update error message
* Check for correct lambda token
* Improve error path reporting
* Fix hang when parsing arrays that look almlost like lambdas
2018-11-10 16:40:40 +01:00
Paul Fultz II
7373be2bfa
Add a pass in valueflow for terminating conditions ( #1323 )
...
* Add valueflow for terminating conditions
* Add valueflow test
* Dont check for same expressions for now to avoid double diagnostics
* Check nesting
* Add more tests
* Ensure conditions happen in order
* Check for null
* Add error path
* Support same expression check as well
* Use early continue
* Skip checking the same token
* Avoid double condtion diagnosis
* Fix FP when in switch statements
* Fix FP when time function
* Skip conditional escapes
* Use simpleMatch
* Fix naming
* Fix typo
2018-11-07 06:49:07 +01:00
rikardfalkeborn
88008fedb1
findLambdaEndToken handle explicit type ( #1458 )
...
* findLambdaEndToken: Add tests
* Add handling of explicit return in findLambdaEndToken()
* Use AST in findLambdaEndToken()
* Fix ast when lambda is mutable
2018-10-31 12:36:08 +01:00
Kamil Dudka
d206047b84
Fixed #8794 - Memory leak false positive triggered by !(x != NULL) ( #1450 )
2018-10-26 06:21:45 +02:00
Daniel Marjamäki
044c4b7fbb
Refactoring: Use range for loop
2018-10-25 06:14:27 +02:00
Daniel Marjamäki
b8e8b12783
Fixed #8797 (exprDependsOnThis handle method call in non-inline method)
2018-10-24 20:17:00 +02:00
Daniel Marjamäki
64fbffc90d
astyle formatting
...
[ci skip]
2018-10-21 20:28:46 +02:00
Paul Fultz II
2989c44f59
Enable checking duplicate expressions across associative operators ( #1445 )
...
* Enable checking duplicate expressions across associative operators
* Remove bitshift operators and check for streamRead
2018-10-21 07:09:20 +02:00
Daniel Marjamäki
e2ea8bc2b0
astyle formatting
...
[ci skip]
2018-10-20 09:28:28 +02:00
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 )
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* 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
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[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 )
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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
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* 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
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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
0847d3d19a
ValueType related bugfixes:
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- ptrdiff_t is SIGNED
- Detect pointers to unknown types as pointers
- Do not identify bool* as boolean (#7381 )
2016-02-05 20:29:17 +01:00
PKEuS
e71e9bd538
CheckBool: Rely on ValueType, removed a redundant check
2016-02-05 15:48:51 +01:00
Daniel Marjamäki
b9a4a950a2
Fixed #7144 (Tokenizer::isScopeNoReturn: handling '{ { throw new string(..); } }')
2016-01-18 15:39:20 +01:00
Daniel Marjamäki
d656e3a056
Fixed #7103 (isReturnScope: handling 'return (bstr){0};')
2016-01-17 12:38:49 +01:00
Daniel Marjamäki
522de81cc7
Refactoring: Move isReturn() to astutils and rename it to isReturnScope()
2016-01-16 18:52:34 +01:00
Daniel Marjamäki
b3208fb4b3
Fixed #7211 (False positive: Finding the same expression on both sides of an operator (enumconstant == 0))
2016-01-10 11:21:43 +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
24438c326e
Fixed #7233 (Fasle negative 'unknownEvaluationOrder in case of macro)
2015-12-25 18:31:21 +01:00
Daniel Marjamäki
8f27cec991
Revert "minor tweak of comment"
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This reverts commit b1d1869f22
.
2015-12-14 20:29:29 +01:00
Daniel Marjamäki
b1d1869f22
minor tweak of comment
2015-12-14 20:03:40 +01:00
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
Daniel Marjamäki
0f9d90d2be
Changed Copyrights. Removed my name.
2015-11-18 20:04:50 +01:00
Daniel Marjamäki
4ec333dbb6
Fixed #7007 (ValueFlow: value is not known, modified by subfunction)
2015-11-12 14:59:35 +01:00
Daniel Marjamäki
b9b0964dab
Fixed #7006 (False positive Mismatching assignment and comparison (variable is changed in loop))
2015-11-11 13:45:28 +01:00
Daniel Marjamäki
cba11e623e
Use ValueType in astIsIntegral()
2015-10-11 14:11:11 +02:00
Daniel Marjamäki
ac9cb87e04
ValueType: Handle bit operations, sizeof better. Use ValueType in astIsFloat().
2015-10-11 12:20:40 +02:00
Daniel Marjamäki
f5d9ba9cf3
Rewrote the charvar checker. It now uses valueflow also to limit false negatives.
2015-10-06 17:30:51 +02:00
amai2012
88b3d90505
#7023 segmentation fault (invalid code) in astIsIntegral. Avoid crash, unfortunately there is no syntax error yet detected.
2015-10-06 11:21:31 +02:00
Matthias Krüger
e99b4319c9
astutils: remove unused functions isSignedChar and isChar.
2015-10-06 08:27:47 +02:00
Daniel Marjamäki
2034706033
AST: Use AST type in astIsSignedChar
2015-10-06 07:13:41 +02:00
Daniel Marjamäki
a574fda8a9
Fixed #6935 (Wrong duplicate expression)
2015-10-03 14:56:24 +02:00
PKEuS
4d80df2f4a
Added pointer to Type to Token (similar to Token::Variable() and Token::function()):
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- Accessible via Token::type()
- Renamed former Token::type() to Token::tokType()
- Removed SymbolDatabase::isClassOrStruct()
2015-08-15 11:19:21 +02:00
Daniel Marjamäki
3a1a34751f
Library: Initial handling of method calls
2015-08-10 09:41:06 +02:00
Daniel Marjamäki
e598b07a6d
Moved functions to astutils
2015-08-03 09:20:50 +02:00
Alexander Mai
96c3c111fc
Refactoring: Move some AST related functions to distinct source file
2015-08-02 21:57:32 +02:00