9d8e5e36eb
Added a few TODO comments
2018-11-20 22:57:01 +01:00
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
d376e9f245
Track variable lifetime through function calls ( #1481 )
2018-11-16 06:12:28 +01:00
39c04b650d
astyle formatting
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[ci skip]
2018-11-14 19:10:52 +01:00
54453c5802
Fix FP when copying pointer to string ( #1479 )
2018-11-14 06:59:25 +01:00
f0c86b9d14
Fix issue 8842: Crash in valueFlowTerminatingCondition on incomplete code ( #1480 )
2018-11-14 06:23:45 +01:00
f096d7f474
astyle formatting
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[ci skip]
2018-11-12 10:08:57 +01:00
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
717a2d370c
astyle formatting
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[ci skip]
2018-11-12 06:32:02 +01:00
5bda102897
Fix warnings ( #1476 )
2018-11-12 06:08:57 +01:00
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
bdd4623124
valueFlowLibraryFunction: fix crash found with daca@home
2018-11-11 16:41:01 +01:00
e46691597e
Fix issue 8841: FP knownConditionTrueFalse - Dont treat unknown function as noreturn ( #1474 )
...
* Fix issue 8841: Dont treat unknown function as noreturn
* Add a parameter to set default value when the function is unknown
2018-11-11 08:04:01 +01:00
d5a478d5c5
astyle formatting
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[ci skip]
2018-11-10 21:30:01 +01:00
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
36e663e250
Fix issue 8839: FP knownConditionTrueFalse - condition inside a while-clause ( #1469 )
2018-11-09 06:09:51 +01:00
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
35d18be311
ValueFlow: Refactoring, removed redundant assignment
2018-11-06 07:02:20 +01:00
00340efc57
ValueFlow: Refactoring valueFlowCallFunction
2018-11-06 06:38:26 +01:00
ca19894a04
ValueFlow: In evaluate handle correlated values
2018-11-05 18:07:35 +01:00
da44ce0b5d
ValueFlow: evaluate strlen and char literals better
2018-11-05 16:52:12 +01:00
977fdd88a9
ValueFlow: Fix a few issues in 'evaluate'
2018-11-05 06:53:48 +01:00
8a54420274
ValueFlow: Try to handle multiple argument values in <returnValue> evaluation
2018-11-04 20:52:12 +01:00
dd9a1e890b
valueFlowRightShift: Do not perform analysis when rhs is negative
2018-11-04 17:13:23 +01:00
6878de2c5e
ValueFlow: getExpressionRange, valueFlowRightShift
2018-11-03 23:25:46 +01:00
ef35b86b4a
Multipass Valueflow
2018-11-03 15:53:24 +01:00
614a252704
Fix Match warning
2018-11-02 20:14:34 +01:00
5de683ec49
Container size: Fix false positive
2018-11-02 20:10:40 +01:00
16cc20a232
ValueFlow: Better handling of container size values
2018-11-02 18:28:32 +01:00
c03d32b429
ValueFlow: Improve containerSize handling of string like classes
2018-10-28 19:14:00 +01:00
06ede9c239
ValueFlow: handle x+=y for containers
2018-10-27 18:38:04 +02:00
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
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
d08b39c915
Improved const correctness of local variables. There are no functional changes intended. ( #1392 )
2018-09-23 20:24:51 +02:00
d7de46f50e
ValueFlow: Fix false positive for container size
2018-09-08 10:43:08 +02:00
c6d43506b6
ValueFlow: Fix FP in switch
2018-09-04 20:28:48 +02:00
cc402869a6
Fixed #8689 (False positive: containerOutOfBounds after function call)
2018-09-02 14:08:34 +02:00
6223204a06
Fixed #8708 (FP: Accessing an item in container that is empty)
2018-08-27 13:49:47 +02:00
2f834c3c3b
Fixed #8688 (False positive: containerOutOfBounds)
2018-08-13 21:27:29 +02:00
55ab842083
valueFlowSizeForward: Bailout when function calls modify the container size
2018-08-13 06:54:18 +02:00
183345a939
valueFlowContainerSize: Fix FP when container size is changed
2018-08-12 22:23:19 +02:00
7074eeb869
valueFlowContainerSize: assignment of string-like containers
2018-08-12 22:01:58 +02:00
189ea5003a
valueFlowContainerSize: empty container variables
2018-08-12 14:41:00 +02:00
811a71aa06
valueFlowContainerSize: Handle guard logic
2018-08-11 15:08:54 +02:00
6008bbdfb4
valueFlowContainerSize: Fix wrong value after condition if conditional code escapes
2018-08-11 13:49:42 +02:00
10461e5429
valueFlowContainerSize: forward analysis inside conditional code
2018-08-10 22:18:38 +02:00
4a502a7f6b
valueFlowContainerSize: add simple forward analysis
2018-08-10 22:06:23 +02:00
2b10e38eec
valueFlowContainerSize: handling of 'v.size() == 10'
2018-08-10 21:43:47 +02:00
3947c23290
Fix issue 8369: False negative: Condition 'condition' is always true ( #1325 )
...
* Fix issue 8369: False negative: Condition 'condition' is always true
* Use simpleMatch
* Add iterator header
* Cleanup
* Remove unused variable
2018-08-10 18:05:23 +02:00
3805af18a2
valueFlowContainerSize: Fix crash when container pointer is null
2018-08-10 12:53:16 +02:00
f37434cd1d
valueFlowContainerReverse: Fix FPs when there is assignment
2018-08-10 12:26:53 +02:00
907f81d059
ValueFlow: Improved analysis of container size
2018-08-10 11:53:56 +02:00
81f54f7094
Fixed #8681 (ValueFlow: Container size)
2018-08-10 11:29:16 +02:00
c666f74755
astyle formatting
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[ci skip]
2018-07-25 23:02:16 +02:00
f093692551
ValueFlow: Set values in else branch even when the first branch modifies the value ( #1309 )
...
* Set values in else branch even when the first branch modifies the value
* Move tests
* Add check for goto
* Remvoe todo
* Also check scope is noreturn
* Use isEscapeScope when variables are changed
2018-07-25 22:59:54 +02:00
9895ea5ff2
Fix issue 470: Condition is always true or false on logical operators ( #1294 )
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* Fix issue 470: Condition is always true or false on logical operators
* Dont warn on literals
* Compute logical operators using valueflow
* Fix FP when using literals
* Always warn on subconditions that are always true
* Use percent matches first
* Add test for logical operators
* Check if parent is null
2018-07-23 08:51:59 +02:00
991300ac54
Clarify code with Token::isUnaryOp()
2018-07-14 22:36:08 +02:00
1e824330c0
Refactoring: Use range for loops
2018-07-14 22:26:22 +02:00
0f3cc56c59
Refactoring: Use range for loops
2018-07-14 13:19:41 +02:00
d603a811bb
Clarify code with Token::hasKnownValue()
2018-07-14 13:09:53 +02:00
de66eedd54
Improved const correctness of local variables.
2018-05-29 17:33:43 +02:00
8e8919e906
Fix comment
2018-05-07 22:06:23 +02:00
8c2a5c9813
astyle formatting
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[ci skip]
2018-05-06 09:50:53 +02:00
0561877182
Fix false positive with negative array index in issue 8536 ( #1202 )
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* Fix FP with negative array index in valueflow
* Remove values when valueflow fails
* Add valueflow test
2018-05-06 08:35:29 +02:00
858e055c0e
ValueFlow: Wrote a few basic comments
2018-05-05 23:03:04 +02:00
f336c2efe7
Refactoring; Renamed Scope::classStart and Scope::classEnd
2018-04-27 22:36:30 +02:00
dbcdb19b73
Refactoring; Use range for
2018-04-24 18:02:36 +02:00
7ee636b934
Refactoring: Reuse isLikelyStreamRead in isVariableChanged
2018-04-18 17:46:10 +02:00
7825eb8670
Refactoring; reuse isLikelyStreamRead
2018-04-17 19:51:27 +02:00
c84628c28a
Fixed #8494 (False positive: serialization class overloads operator)
2018-04-17 14:23:04 +02:00
d2146844dd
Refactorizations:
...
- Replace several push_back-calls by emplace_back
- Replace some x = x.substr(0, y) calls by x.erase(y)
2018-04-11 09:44:35 +02:00
c5923fbdd3
astyle formatting
2018-04-09 22:21:17 +02:00
d8b3fa5c70
Fix #8482 : Regression with valueflow ( #1159 )
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* Fix regression with valueflow
* Simplify test case
2018-04-09 16:13:17 +02:00
b15cc3f236
Refactorization: Replace several push_back-sequences by initializer lists
2018-04-09 09:54:39 +02:00
ee5c60e8f6
Refactoring, use early continue
2018-04-08 09:30:13 +02:00
795b9f5e0f
astyle formatting
2018-04-08 09:25:59 +02:00
aed84abfd5
Extend valueflow comparison ops ( #1153 )
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* Handle else clause when doing a compare
* Break early
* Fix bug in checking no return else
* Escape quotes
* Add equal sign
* Simplify the logic
2018-04-08 09:24:01 +02:00
5a104cab6e
remove weird "#line 2" from valueflow.cpp
2018-04-06 23:26:08 +02:00
3ad6c7ebce
Refactoring, use early continue
2018-04-05 08:21:43 +02:00
b871c85b67
Improve valeflow analysis with comparison operators ( #1131 )
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* Improve valeflow analysis with comparison operators
* Use simple match
* Dont add 0 on comparisons
* Check reverse comparisons
* Use nullptr
* Remove duplicate code tests
2018-04-05 06:51:31 +02:00
b6504c70ca
Improve constness
2018-04-04 21:51:31 +02:00
5bc039b7da
Fix #6367 and #8439 (improve sizeof value flow support) ( #1132 )
2018-03-23 08:28:12 +01:00
7699f6432b
Fixed #8288 (valueFlowGlobalVar: compound assignments)
2018-03-18 19:53:33 +01:00
ec6133aea2
Fixed #8182 (False positive uninitvar - variable initialized in function in ternary expression)
2018-03-16 19:13:48 +01:00
1628405869
Fix internal warning
2018-02-24 22:35:37 +01:00
7701e4594a
ValueFlowBeforeCondition: Fix wrong value in do-while condition when there is a break in the loop body
2018-02-24 22:07:34 +01:00
69b50b274c
Try to make Travis happy
2018-02-11 22:54:14 +01:00
e62b9bdc77
Fixed #8348 (ValueFlow: wrong Uninit value with abort() in else-branch)
2018-02-11 22:14:44 +01:00
f009cfc845
fix some typos found by codespell.
2018-02-04 20:53:43 +01:00
c4caee6b18
Updated copyright year
2018-01-14 15:37:52 +01:00
6fd157e93b
ValueFlow: Template arguments have 'possible' values
2018-01-11 14:22:27 +01:00
c8010fdf42
Fixed crash on garbage code ( #8307 )
2018-01-07 13:11:56 +01:00
8fe4852b98
Refactoring, reuse and improve isVariableChangedByFunction()
2017-11-18 11:02:52 +01:00
9191e6f112
Fixed #8246 (ValueFlow: known value, function pointer argument)
2017-11-17 23:04:54 +01:00
4a9984d73b
Fixed #8233 (FP uninitvar found in bash:lib/readline/display.c)
2017-11-06 10:28:07 +01:00
19af9bc216
Fix UB when converting float to int ( #984 )
2017-11-03 14:05:23 +01:00
002f6679d5
Fix syntax error
2017-10-21 22:17:07 +02:00
c4c76aa1ad
Use MathLib::bigint_bits
2017-10-21 22:08:34 +02:00
64e61d28ba
Add an ability to use address sanitizer ( #979 )
2017-10-21 21:04:14 +02:00
05e1e5e0a0
astyle formatting
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[ci skip]
2017-10-20 22:11:12 +02:00
1d5e3e4f0c
Fixed #8247 (False positive knownConditionTrueFalse)
2017-10-20 17:31:58 +02:00
5040491ee6
Size computation code not required outside this translation unit
2017-10-19 19:01:41 +03:00
606e28a3c5
Extract and reuse size computation
2017-10-19 00:25:21 +03:00
34a8d2431f
Extract and reuse size computation
2017-10-19 00:20:04 +03:00
8709490903
Clarify expressions with parentheses
2017-10-18 23:40:43 +03:00
e356ccca22
Revert "Clarify expression with parentheses"
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This reverts commit bbf0a81c2d
2017-10-18 23:31:44 +03:00
bbf0a81c2d
Clarify expression with parentheses
2017-10-18 23:24:31 +03:00
151ace2581
Use Platform for char limits computation ( #972 )
2017-10-18 17:30:47 +02:00
ad1749738e
Fixed #6153 (ValueFlowBeforeCondition: Handle global variables)
2017-10-17 16:55:37 +02:00
6d59290858
Fixed #10 (ValueFlow: condition variable has known value in switch case)
2017-10-16 21:51:30 +02:00
fbccb3ae55
Add errorpath for accessMoved message
2017-10-10 15:49:15 +02:00
d3c9d06aa4
astyle formatting
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[ci skip]
2017-10-08 14:16:45 +02:00
be2c65eb58
Simplify int vs bool
2017-10-08 07:54:39 +02:00
2a6fbe2e3c
astyle formatting
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[ci skip]
2017-10-05 23:01:42 +02:00
051a18b120
pull request for ticket 8180 (better diagnostic output for bailouts) ( #964 )
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* sync build instructions from readme.txt
* refactored the patch from ticket 8180. Moved logic from macros to the bailoutInternal function
* adapt to new bailout message format
* adapt to new bailout message format
* adapt to new bailout message format
* compile fix for Microsoft platform
* remove directory part from file locations in bailout message (normalize)
* remove directory part from valueflow message filter
* adapt tests to file format without directory part
* adapt tests to file format without directory part
* new line number agnostic assert_equals methods
* new line number agnostic assert_equals methods
* adapt to new method assertEqualsWithoutLineNumbers()
* adapt to new method assertEqualsWithoutLineNumbers()
* Bugfix: do not replace line number with spaces, remove it
* review changes: const char * -> std::string, size_t -> int, std::to_string() -> MathLib::toString()
* set #line at the beginning to guard against insertions from match compiler
* Bugfix: counting lines can be difficult :-) #line 1 -> #line 2
* added method stripDirectoryPart()
* added method stripDirectoryPart()
* used new method Path::stripDirectoryPart()
* new dependency path.h in lib/valueFlow.cpp
* code cleanup, removing redundant temporary objects and casts
2017-10-05 23:03:13 +02:00
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
87c35cd60e
ValueFlowForward: Refactoring handling of compound assignments
2017-09-20 11:45:28 +02:00
1dbcba4dd6
Fixed #8221 (ValueFlow: value for static variable that is not written)
2017-09-15 15:58:19 +02:00
ef1f3fbee6
Fixed #8173 (ValueFlow: use AST when setting values in assignment RHS ((n=42) && n=='A'))
2017-09-14 22:49:47 +02:00
a4c20b3606
Break loop early
2017-09-12 07:48:06 +03:00
4126fab1d5
Simplify code with temporary
2017-09-12 07:46:38 +03:00
caebf137bc
Cache and reuse value
2017-09-12 00:21:36 +03:00
5dba8268e7
Better variable name
2017-09-04 17:53:56 +03:00
a02fd54a69
ValueFlow: Avoid FPs for aliased variables
2017-09-03 23:24:55 +02:00
beba46987d
Remove redundant variable
2017-09-01 18:19:25 +03:00
2133350bf0
More useful default value
2017-09-01 18:17:40 +03:00
4663dc205a
Cache and reuse value
2017-09-01 18:16:08 +03:00
59034e17f1
Refactoring, reuse code to skip lambda functions
2017-08-29 22:35:55 +02:00
9c99bc43c2
ValueFlow: Skip wrong handling of lambda functions. TODO: handle lambda functions properly.
2017-08-28 22:39:12 +02:00
02a1b7cd2d
Fixed #7965 (valueFlowForward: Improved handling of correlated variables)
2017-08-27 19:50:44 +02:00
529b255e99
ValueFlow: Better errorpath for increment/decrement
2017-08-25 23:07:26 +02:00
b1b8e5270a
ValueFlow: Better errorpath for increment/decrement
2017-08-25 22:15:52 +02:00
50636f75ba
ValueFlow: Improved error path for compound assignments
2017-08-24 22:02:49 +02:00
f10634c021
ValueFlow: Dont try to evaluate '/=0;'
2017-08-23 17:53:05 +02:00
167cfb1ac5
valueFlowForward: improve handling of compound assignments
2017-08-23 11:13:47 +02:00
3abb62a6d1
Fixed #8036 (valueFlowUninit: strcpy(buf, e = str), free(e);)
2017-08-20 19:47:26 +02:00
d3d9c76f01
Fix off by one, resolve C4334
2017-08-14 18:07:36 +03:00
b8cd7dbb5c
Use nullptr instead of 0 or NULL ( #936 )
2017-08-09 20:00:26 +02:00
32fe0aba41
Fixed #8037 (ValueFlow: global variable might be modified by function call)
2017-07-09 12:50:17 +02:00
bce0776417
Fixed #7795 (ValueFlow: Value is not known after conditional increment )
2017-06-01 15:16:07 +02:00
28aa939d69
iwyu - include what you use
2017-05-27 04:33:47 +02:00
6e1544bd49
ValueFlow: Use getOrdinalText()
2017-05-23 15:01:56 +02:00
ba2b235e24
Fixed: warning: ‘tokvalue’ may be used uninitialized in this function [-Wuninitialized].
2017-05-22 15:22:38 +02:00
58da0df2f6
astyle formatting
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[ci skip]
2017-05-20 18:52:48 +02:00
82a372a380
Try to clarify ErrorPath texts
2017-05-20 08:47:35 +02:00
f92b16706c
ValueFlow: Add ErrorPath info after for loop
2017-05-19 16:32:58 +02:00
2bb54fef69
ValueFlow: Test ErrorPath handling
2017-05-19 14:34:59 +02:00
cd53d10970
ErrorPath: More information about assignments
2017-05-16 23:12:35 +02:00
c617851567
ErrorLogger: Added ErrorPath where each item has token and info
2017-05-16 22:38:13 +02:00
e65d6d3c67
ValueFlow: inherit Value::callstack in calculations
2017-05-16 19:43:55 +02:00
8d75d1b920
Partial fix for #8028 (ValueFlow: Origin/callstack of value)
2017-05-15 20:05:11 +02:00
bc7799dccd
Fixed #7888 (false positive from knownConditionTrueFalse with sizeof(int) == sizeof(long))
2017-05-01 12:23:28 +02:00
980ca39fe2
valueFlowForward: better handling of sizeof() in rhs in assignments
2017-04-29 08:25:55 +02:00
a0a8f8ddd6
ValueFlowUninit: make it more strict
2017-04-28 13:29:09 +02:00
89532cf8b9
Fixed #7968 (valueFlowBeforeCondition: better handling of compound assignments)
2017-04-25 20:45:02 +02:00
37fd60e879
Fixed #7293 (Use of uninitialized pointer not detected (worked in 1.71))
2017-04-24 18:27:16 +02:00
9a294496c1
ValueFlow::setTokenValue: Fix typo
2017-04-23 21:59:58 +02:00
a688402617
ValueFlow::setTokenValue: Don't calculate parent value for uninitialized values
2017-04-23 21:58:01 +02:00
8a738eefab
fixed #7998 (uninitialized variable is not found when used with switch/case)
2017-04-23 18:05:14 +02:00
8fe7ee1012
Fixed #7886 (ValueFlow: endless forloop 'for (i = 0, j = 0; i < sz && j < 9; i++)')
2017-03-30 22:02:36 +02:00
3c8f5b85ae
Refactorization: Allocate Token::_values (ValueFlow information) dynamically, reducing size of each token by around 10%
2017-03-27 18:48:34 +02:00
97fa9e9d1b
ValueFlow: Stop on inline assembly
2017-03-23 20:01:16 +01:00
ecc59859e1
Don't simplify _Bool in TokenList
2017-03-04 11:13:28 +01:00
d1c66edb03
ValueFlow: Known values in conditional code
2017-03-03 01:29:34 +01:00
47d39d0a14
Revert "Fixed #7888 (1.77 false positive from knownConditionTrueFalse with sizeof(int) == sizeof(long))"
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This reverts commit a762511067
2017-01-10 13:22:48 +01:00
a762511067
Fixed #7888 (1.77 false positive from knownConditionTrueFalse with sizeof(int) == sizeof(long))
2017-01-09 22:28:55 +01:00
b1f7e46491
Fixed #7323 (valueflow: global variables)
2017-01-09 15:53:08 +01:00
f40bdddbab
ValueFlow: Better handling when casting calculation result
2016-12-20 23:09:50 +01:00
44ccbdedec
ValueFlow: Improved value for cast
2016-12-20 21:37:25 +01:00
606bb78297
ValueFlow: Better handling of casts
2016-12-20 19:32:21 +01:00
e14e86c103
ValueFlow: only set values in conditional code in subfunctions when sure
2016-12-20 11:06:20 +01:00
807b653739
ValueFlow: Fix FP in for loops when 2nd expression is 0
2016-12-20 07:54:38 +01:00
f1ad7368f6
ValueFlow: bool values
2016-12-19 21:21:18 +01:00
17aaecbd6b
ValueFlow: Improved handling of sizeof
2016-12-18 14:03:48 +01:00
4ac5c78e0c
Fix wrong iterator usage. Iterator that is erased must be non-const.
2016-12-17 22:20:50 +01:00
72e4bc9d88
ValueFlow: skip values that cause false assertion condition
2016-12-17 21:23:14 +01:00
fd85b493bd
astyle formatting
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[ci skip]
2016-12-17 18:51:16 +01:00
cb5a5e6a25
Improve Fix #6180 (Access of moved variable still allowed until function is called)
2016-12-17 16:42:46 +01:00
9a871d33f7
Improve Fix #6180 ("reset" and "clear" clears the move status)
2016-12-17 16:39:30 +01:00
f4ab45f13b
Improve Fix #6180 (Do not warn about move if it is part of a reassignment of the variable)
2016-12-17 16:39:30 +01:00
31337dda27
ValueFlow: Better handling of && and || in for loop to avoid FP
2016-12-11 21:19:24 +01:00
e0d4720e19
Fix #7829 (false-positive: knownConditionTrueFalse linked to virtual method)
...
Return values of virtual functions in valueflow are only possible values
since function might be overloaded.
2016-12-11 10:44:05 +01:00
b098d5fbd6
ValueFlow: We need better handling of casts
2016-12-10 22:09:01 +01:00
2f6350a0d0
Refactorized Library
2016-12-06 14:09:28 +01:00
6e8ac13325
Refactorization:
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- Optimized std::string usage
- Replaced list by vector
- Moved iterator into loop head
- Ran AStyle
2016-12-05 17:45:34 +01:00
5df8e7f50c
Fixed #7596 (ValueFlow: better handling for 'x*(1-x-1)')
2016-12-04 22:39:59 +01:00
57b57428c2
Fix some typos in comments (found by codespell)
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Signed-off-by: Stefan Weil <sw@weilnetz.de>
2016-11-27 11:40:42 +01:00
213589ee68
ValueFlow: don't perform UB when a function returns shifts of/by negative values. Fixes #7814 .
2016-11-24 23:23:47 +01:00
d40f4e4a55
Fixed #7778 (valueFlowAfterAssign: alias)
2016-11-21 17:26:36 +01:00
c8ff96fe8f
Fixed #6180 (Usage of variable after std::move or std::forward)
2016-11-20 15:14:49 +01:00
b6614d0aa4
valueflow: bail out earlier when encountering divisions by zero. Fixes #7819 .
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This caused valueflow to actually try to divide by zero, detected by UBSAN.
2016-11-20 14:38:35 +01:00
3b57273ef1
Fix Cppcheck warnings
2016-11-14 07:21:10 +01:00
1e31c6c01c
ValueFlow: Extended handling of float values
2016-11-14 06:42:52 +01:00
e1e9eacccc
ValueFlow: Added float type
2016-11-13 22:59:56 +01:00
4732667488
ValueFlow: allow more value types
2016-11-13 22:33:39 +01:00
7ebfb10edd
Fixed #7806 (ValueFlow: better handling of subfunction with early return)
2016-11-13 18:19:51 +01:00
ac7b351d1e
ValueFlow: Don't calculate x<<64 and x>>64
2016-11-06 20:40:58 +01:00
dd69d5eabe
ValueFlow: Don't calculate result when there is UB
2016-11-06 17:42:01 +01:00
ee11f0974a
#7769 segmentation fault at setTokenValue() on invalid code.
2016-11-06 14:20:58 +01:00
ece4b1a06f
Fix ValueFlow
2016-11-05 09:59:48 +01:00
2885a75ea6
ValueFlow: handle ~ in setTokenValue
2016-11-05 09:29:22 +01:00
d4f01583b6
Fixed TODO (check if function parameter is non-const reference etc..) by common function
2016-11-01 14:06:30 +01:00
4216b26b8c
Fixed #7775 (crash at valueFlowSetConstantValue)
2016-10-26 10:36:02 +02:00
8a0f3009ff
ValueFlow: inner and outer function return values
2016-10-22 17:22:57 +02:00
77cd6c194f
ValueFlow: Set 'known' property for function return values
2016-10-22 12:24:15 +02:00
86a620a3b4
ValueFlow: Better handling of function return value when there are 0 parameters
2016-10-20 16:10:55 +02:00
efa3aba32a
Remove Tokenizer::simplifyNull()
2016-10-18 21:44:02 +02:00
fae4a4dacf
Fixed #7668 (ValueFlow: return value from abs)
2016-10-17 13:05:19 +02:00
7fb812f415
Fixed #7752 (ValueFlow: no conditional value, probably because condition is in ternary operator and/or in function call.)
2016-10-16 07:15:28 +02:00
ad74421526
Fixed #7756 (ValueFlow: fix bug in valueAfterAssign, same variable in lhs and rhs)
2016-10-15 19:09:50 +02:00
a32f61ae4a
Fixed #7139 (ValueFlow: Missed shift operation in for expression)
2016-10-04 13:09:33 +07:00
254e5675ff
Fixed #7573 (Tokenizer: FP caused by constant folding)
2016-08-28 19:11:05 +02:00
e0838ff194
Fixed crash on garbage code ( #7699 )
2016-08-21 11:06:48 +02:00
305609f4fb
Fixed #7688 (setTokenValue: crash when there is no 2nd operand for ternary operator)
2016-08-17 18:44:41 +02:00
1f98af654a
ValueFlow: better handling of ? when condition result is known
2016-08-15 14:19:35 +02:00
62362cd06d
ValueFlow: improve handling of unary minus
2016-08-14 22:19:06 +02:00
9a6569fde1
Always set ErrorMessage::file0 to ensure that the source file that cppcheck is checking when an error occurs can be identified
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Removed unused function and unused includes from preprocessor.h/cpp
2016-07-26 16:28:40 +02:00
4f051bf9dd
Fixed #7599 (valueFlowAST: handle && and || better)
2016-07-17 21:51:20 +02:00
eca805ba3b
ValueFlow: Fixed constant folding of sizeof(enum) and sizeof(enumerator) ( #7564 )
2016-07-08 20:39:34 +02:00
66cacde3db
Fixed #7513 (value flow of array dimension with enum doesn't always work)
2016-05-26 11:25:50 +02:00
636e97c272
ValueType: Improved debug output for nested types
2016-05-08 13:15:20 +02:00
b94eaeca6a
ValueFlow: For convenience, return constant folded value
2016-05-08 11:17:10 +02:00
b26dd1ccab
ValueFlow: Handle enums
2016-05-07 20:18:07 +02:00
23202d9442
Fixed bailoutFunctionPar() for temlate functions ( #7396 )
2016-05-04 11:38:29 +02:00
12a5f2509b
These conditions are mutually exclusive
2016-03-03 18:01:15 +03:00
3bcd0e0535
Reduce variable lifetime
2016-03-02 19:07:20 +03:00
1ab5805d98
Fixed #6616 (valueFlowForward: for loop, variable in 3rd expression is changed in loop body)
2016-02-08 10:43:41 +01:00
cfe9c01bf8
#7257 segmentation fault in valueFlowSwitchVariable (invalid code). Correct SymbolDatabase::validateVariables() so it does not complain about function arguments for function without body
2016-02-03 21:52:02 +01:00
d5884692df
Fixed #7363 (valueflowOppositeCondition - if (size1 > size2) ... else if (size1 < size2) ...)
2016-01-30 22:13:03 +01:00
11be3a9265
fix internal warning: [lib/valueflow.cpp:722]: (warning) Found simple pattern inside Token::Match() call: "if ("
2016-01-30 20:34:33 +01:00
30f2bb7796
ValueFlow: set known value for opposite condition in else if ( #5503 )
2016-01-30 20:03:55 +01:00
b5986f6ad2
Fixed #7358 (valueflow: value is not known after conditional assignment)
2016-01-27 19:20:00 +01:00
462b98afbc
Fixed #7310 (ValueFlow: Value of NULL in function call)
2016-01-26 16:53:01 +01:00
5c9be4a0df
Fixed #7216 (ValueFlow: known value in condition)
2016-01-26 16:10:15 +01:00
a391bca060
Fixed #7350 (ValueFlow: Result of 'x & 0' is always 0)
2016-01-26 10:07:42 +01:00
a8416bfb16
Fixed #6000 (ValueFlow: conditional code in for loops)
2016-01-24 13:11:51 +01:00
76cdfbf487
Fixed #6330 (valueflow: condition is always false first iteration in dowhile loop)
2016-01-24 08:57:57 +01:00
522de81cc7
Refactoring: Move isReturn() to astutils and rename it to isReturnScope()
2016-01-16 18:52:34 +01:00
996c9244d8
Update copyright year to 2007-2016.
2016-01-01 15:34:45 +02:00
e9635fd393
#7236 segmentation fault (invalid code) in ValueFlow::setValues. #7237 segmentation fault (invalid code) in Tokenizer::setVarIdClassDeclaration
2015-12-26 23:51:10 +01:00
9cb8e9a07e
Revert "Fixed #3923 (valueFlowForward: assignment in if should not cause bailout for code in else)"
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This reverts commit 04f9b71281
2015-12-12 16:50:02 +01:00
04f9b71281
Fixed #3923 (valueFlowForward: assignment in if should not cause bailout for code in else)
2015-12-12 15:50:33 +01:00
ba0859e838
#6981 crash in checkvaarg.cpp (with possible fix). Avoid segfault. Add SymbolDatabase::validate() to allow validating smyboldatabase
2015-12-05 20:55:26 +01:00
508b06abaa
Fixed #6973 (ValueFlow: dont set possible tokvalues in unreachable code)
2015-12-01 07:49:19 +01:00
8fb6f33aca
ValueFlow: dont set dynamic values in unreachable code ( #6973 )
2015-11-30 16:15:58 +01:00
c70b71e353
#5888 fsanitize=undefined: signed integer overflow: 4611686018427387904 * 2 cannot be represented in type 'long long int' in valueflow.cpp
2015-11-27 21:45:08 +01:00
0022ce8075
Refactor handling of char constants
2015-11-20 10:10:38 +01:00
0f9d90d2be
Changed Copyrights. Removed my name.
2015-11-18 20:04:50 +01:00
04ecbba361
Fixed #7135 (ValueFlow: Wrong pointer alias set for 'p = &p[x];')
2015-11-15 23:38:23 +01:00
595f1e1a27
ValueFlow: set value for char literals
2015-11-12 16:38:58 +01:00
34dbc3c00c
ValueFlow: Improved handling of a[i]
2015-11-12 16:14:27 +01:00
b9b0964dab
Fixed #7006 (False positive Mismatching assignment and comparison (variable is changed in loop))
2015-11-11 13:45:28 +01:00
389d30fe44
Fixed crash on garbage code ( #7118 )
2015-11-09 11:21:07 +01:00
37dbebb093
Fixed #7049 (valueflow: value is not known after case)
2015-11-08 14:08:47 +01:00
f7a7a8a95c
Fixed #6934 (False positive returnLocalVariable - assigning local array to function argument)
2015-11-07 15:07:26 +01:00
2d0ecc08c1
Check pointers for NULL before utilizing and do not check it later
2015-11-06 20:24:09 +01:00
4b0625c570
Fixed #6239 (Possible null pointer dereference after pointer is modified by a function template)
2015-10-27 12:33:46 +01:00
6b9088de3f
Fixed #7057 (valueFlowAfterAssign doesn't terminate)
2015-10-19 19:36:46 +02:00
8e3e981323
#7050 segmentation fault (invalid code) in isVariableChanged
2015-10-15 21:27:55 +02:00
60f8982999
Fixed #7039 (ValueFlow: bitand calculation '16&15')
2015-10-14 10:44:04 +02:00
3bc21b8138
Fixed #6996 (ValueFlow: known and possible values)
2015-10-04 10:33:43 +02:00
bd243a4748
Fixed #6903 (ValueFlow: Fix FP in ?:)
2015-09-27 13:29:28 +02:00
85d47e25e4
Move variable declaration to where it's first used
2015-09-16 13:15:07 +03:00
8cee96a179
ValueFlow: Refactor 'ProgramMemory' so it can handle token * values also and not just int values. I believe this refactoring is needed before #6973 can be fixed.
2015-09-12 19:49:02 +02:00
70d98c7176
Get rid of set object
2015-09-10 17:59:20 +03:00
45bb7d5adb
Merge pull request #647 from Dmitry-Me/continueOnRuleMatch
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Treat matches as mutually exclusive
2015-08-28 16:00:53 +02:00
962f0ee584
Treat matches as mutually exclusive
2015-08-28 15:27:56 +03:00
81613d958a
Replace match call with explicit comparison
2015-08-28 15:16:10 +03:00
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
f0aa9e31de
Cache and reuse value
2015-08-12 10:57:36 +03:00
50fb9cea66
Reduce variables scope
2015-08-11 17:20:30 +03:00
2e78d21480
Fixed #6730 (ValueFlow: inner scope does not return (continue,throw))
2015-08-11 11:21:03 +02:00
07a064aab0
Fixed #6910 (ValueFlow: variable incremented as macro argument is not known)
2015-08-05 14:08:57 +02:00
8d3f7e36e9
Fixed #6911 (valueflow: comparison of string and NULL)
2015-08-02 18:12:03 +02:00
6790d91fbb
Improve error messages for conditional values. make valueFlowSwitchVariable values conditional that depend on the case. Partial fix for #6884 .
2015-07-29 19:54:57 +02:00
fc25ed8c86
Fixed #6879 (valueflow in do-while(++i))
2015-07-29 11:55:07 +02:00
bf75ee9aed
Fixed #6885 (valueflow ignores assignment of variable via function call)
2015-07-29 10:49:17 +02:00
a1dfd6cf73
astyle formatting
2015-07-28 12:47:08 +02:00
e759710198
Fixed #6743 (valueFlowAfterCondition: wrong value when variable is changed in conditional code)
2015-07-28 08:58:05 +02:00
f449e91d43
made valueFlowSwitchVariable faster when there are many 'case %num%:'
2015-07-27 14:57:02 +02:00
5cc744b941
Fixed #6872 (Major performance regression - valueFlowSwitchVariable)
2015-07-27 06:45:06 +02:00
ed1c6e41d9
Fixed #6876 (valueFlowForward: lambda function)
2015-07-26 19:28:42 +02:00
190550f9f9
Fixed #6877 (ValueFlow: valueFlowForward, after goto label the value is not known)
2015-07-26 17:05:21 +02:00
4e293d47c5
CheckMemoryLeak: Fix handling of comparisons after simplifyIfNotNull is removed, detected problem with run_more_tests
2015-07-26 11:27:52 +02:00
afd9f071c0
simplified the code for ValueFlow Known/Possible values
2015-07-25 19:36:29 +02:00
ab1113fb16
Fixed crash on garbage code #6859
2015-07-22 13:33:24 +02:00
ffc707246b
ValueFlow: Better handling of Known/Possible values after conditional unknown function call
2015-07-21 17:56:40 +02:00
749bb34deb
Fixed #6830 (ValueFlow: value of switch-variable inside switch)
2015-07-20 19:45:38 +02:00
c0880c8d79
ValueFlow: Values that are assigned in switch are possible after switch
2015-07-20 09:36:56 +02:00
ce7e879460
ValueFlow: isVariableChanged() should return true when variable is changed by passing its address to subfunction
2015-07-18 15:35:39 +02:00
5aa0b284dc
ValueFlow: Evaluate more calculations when operands have known values
2015-07-18 15:03:57 +02:00
25d9ebedd8
ValueFlow: fixed known/possible value of static variable
2015-07-17 20:48:37 +02:00
f1e410a878
ValueFlow: value that is changed in do while loop must be possible instead of known.
2015-07-17 20:30:34 +02:00
69c1a7ecb1
ValueFlow: default argument values are not known, they are possible
2015-07-17 16:05:07 +02:00
577ab1c2ac
ValueFlow: result of ? is not 'known'
2015-07-17 15:22:24 +02:00
61cf224f32
ValueFlow: Make known loop value possible
2015-07-17 10:24:24 +02:00
9bdee7fce9
ValueFlow: Refactoring setTokenValue()
2015-07-17 09:46:31 +02:00
3d5781743c
ValueFlow: Restore handling of not
2015-07-16 21:17:44 +02:00
15a8e4d2df
Temporarily revert "Fixed #4842 (condition is always true (variable is assigned constant value and then used in condition))"
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This reverts commit a3fbad50cb
2015-07-16 21:10:46 +02:00
09efe140fe
ValueFlow: Change value to 'Possible' after conditional assignment in inner loop
2015-07-16 21:08:32 +02:00
38214b6907
ValueFlow: function arguments only has 'possible' values
2015-07-16 20:49:14 +02:00
a3fbad50cb
Fixed #4842 (condition is always true (variable is assigned constant value and then used in condition))
2015-07-16 20:17:57 +02:00
88491267d6
ValueFlow: Added Value::valueKind that says if value is known or possible
2015-07-16 17:33:16 +02:00
b604d63dd8
#6726 cppcheck hangs with 100% CPU load (invalidcode) inside Token::astOperand2(). #6840 egmentation fault (invalid code) in Token::astOperand2. Improve stability on invalid code
2015-07-15 15:19:48 +02:00
405a1fba11
ValueFlow: set values for false/true
2015-07-14 18:02:26 +02:00
7ccd30362c
Fixed #6826 (False positive: ValueFlow conditional value used in condition)
2015-07-12 19:35:47 +02:00
f3b4c1d0db
Remove some useless casts, probably added to avoid false positives.
2015-07-04 13:19:21 +02:00
b8e77c8005
valueflow: fix for ?:. the condition result is not a result of the ?.
2015-07-04 11:17:38 +02:00
7e1ddea653
One more fix for #6811 (ValueFlow: result of ?:)
2015-07-02 20:52:04 +02:00
c751039612
Fixed #6811 (ValueFlow: result of ?:)
2015-07-02 20:11:27 +02:00
75b0430ba5
Token::strValue: fixed handling of backslash
2015-06-07 11:25:33 +02:00
98e6dca4f2
Ticket #6713 : Properly detect ternary operator in valueFlowForward.
2015-05-30 20:55:36 +02:00
729b240d9c
Refactoring (compiler warnings and a typo)
2015-05-25 23:15:59 +02:00
eb0db322eb
Fixed #6560 (ValueFlow: handling ternary operator better in valueFlowSubFunction)
2015-05-24 17:02:00 +02:00
3ce4e68ca6
Refactorization: Make use of do-loops to avoid redundant Token::Match() calls
2015-05-13 13:40:40 +02:00
ca1f19b6d4
Fixed #6378 (valueFlowForward: decrement not handled)
2015-05-02 17:30:09 +02:00
8a4033e13a
Omit unneeded actions
2015-03-24 16:01:59 +03:00
b7d92a4fc7
Fixed warnings of CppCheck's own code (caused by new check #695 )
2015-03-08 18:18:09 +01:00
d1892786b8
ValueFlow: Improved when using '[' on arrays and strings
2015-02-24 15:57:39 +01:00
dfd19233e9
Simplify loop logic
2015-02-09 14:40:17 +03:00
6eacb4957c
Simplify ternary operators, use else-if to avoid extra comparison
2015-02-09 11:46:27 +03:00
fd0155cacf
Reuse already known values
2015-02-09 10:23:36 +03:00
8a1b8df1ba
ValueFlow: Improved handling of alias values in valueFlowForward
2015-02-08 19:20:05 +01:00
1d873de67f
Fix testrunner
2015-02-07 19:44:33 +01:00
62a5d88eb0
ValueFlow: Improved handling of strings
2015-02-07 18:14:22 +01:00
dd70b6e0cd
fix internal message: [lib/valueflow.cpp:239]: (warning) Found simple pattern inside Token::Match() call: "} ;"
2015-02-07 12:51:17 +01:00
29db3eb848
Fixed #5980 (ValueFlow: pointer cant be 0 below throw in switch)
2015-02-07 10:45:30 +01:00
f1714110d0
Fixed crash if double constants are passed as default arguments ( #6494 )
2015-02-03 22:12:05 +01:00
c05e632baf
Cache and reuse value
2015-02-03 11:00:40 +03:00
451a277b18
Refactorization: Support function default values in ValueFlow, removed now obsolete CheckNullPointer::nullPointerDefaultArgument().
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-> Use valueFlowForward() to parse values passed to functions
-> valueFlowForward(): Set value in first occurrence of a variable in a condition
2015-02-01 15:15:00 +01:00
b74b94b1e6
Partially reverted previous commit - std::vetcor instance creation can't be avoided without generating lots of debug messages
2015-02-01 12:33:53 +01:00
58c3fdd063
Fixed crash on garbage code introduced recently, optimized code in valueFlowFunctionReturn.
2015-02-01 12:26:46 +01:00
a4cc4c3e3f
Refactorization: Use SymbolDatabase scope information in ValueFlow
2015-02-01 12:10:20 +01:00
b2835051df
Refactorization: Renamed Token::Match pattern %var% to %name%, implement new pattern %var% which is true if varId > 0.
2015-01-31 12:32:04 +01:00
33f5d27b53
Fixed varId0 message #6443 .
2015-01-31 10:33:32 +01:00
6a8293a8b7
Library: More strict matching of functions
2015-01-08 19:31:41 +01:00
1068e095e7
Fixed cppcheck warning about iterator post increment
2015-01-06 15:16:29 +01:00
eee9183406
ValueFlow: improved handling of conditional noreturn scope in valueFlowForward
2015-01-06 14:12:35 +01:00
1f698ca493
ValueFlow: Fixed valueFlowForward, when condition is false and else-block returns dont set values below the else-code
2015-01-05 16:39:47 +01:00
c5467766e2
ValueFlow: Fix for valueflow analysis after for loop
2015-01-05 14:00:12 +01:00
ff11ba9847
Updated copyright year to 2015
2015-01-03 12:14:58 +01:00
2831bbd420
ValueFlow: better handling of goto to avoid false positives
2015-01-01 14:29:49 +01:00
58f4660c94
Fixed #5223 : Bailout in valueFlowForLoop1() for complex conditions
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Refactorization: Reuse result instead of calling MathLib::toLongNumber() twice
2014-12-30 19:56:47 +01:00
ec826a0e0e
Fixed #6022 : Support ++%var% in valueFlowForLoop1
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Fixed TODO unit test: properly handle loops that are never executed
2014-12-30 18:50:22 +01:00
5490fad8c7
Fixed #5840 (False positive (inconclusive): Possible nullpointer dereference - use before for-loop over nested list)
2014-12-14 14:10:42 +01:00
d8b50e73df
Fixed #6002 (Defect: False positive due to pointer address not being associated with variable in for loop)
2014-10-20 15:54:02 +02:00
0fd6586fcc
Fixed #6219 (valueFlowForward: better multivariable analysis needed to avoid FP)
2014-10-17 06:50:33 +02:00
228206f556
Fixed #6067 (ValueFlow: subfunction, condition with && or ||)
2014-10-15 16:34:03 +02:00
31d8cac8c9
Fixed #6138 (ValueFlow: entry can't be 0 in loop code 'while (entry = get()) entry->value;')
2014-10-11 17:48:51 +02:00
0cc5b67bf6
Avoid copying std::list object in valueFlowAfterAssign
2014-09-24 13:22:22 +02:00
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