3cdc236e10
Fix false positive with several ! (not) operators ( #1856 )
...
With the following code
int f(int x, int y) {
if (!!(x != 0)) {
return y/x;
}
cppcheck would wrongly warn that there might be a division by zero in
"return y/x;".
2019-05-29 09:45:15 +02:00
4e94c64da8
Fix issue 9099 and 9102: Incorrect valueflow for global variables ( #1832 )
2019-05-14 08:58:27 +02:00
6c3c090403
Fixed #6317 (wrong simplification: int i = 1.5; return i; get simplified to: return 1.5;)
2019-05-01 17:05:16 +02:00
1cc5f3abe7
Set wchar_t type ( #1807 )
...
This is necessary for valueflow to know the size, for example when
calculating sizeof(wchar_t).
2019-05-01 16:34:28 +02:00
66064fb2bb
Disable valueFlowGlobalConstVar until #9099 is fixed
2019-04-30 20:51:59 +02:00
bca2dfb3f4
Implement #7597 - valueflow: global constant ( #1802 )
...
* Implement const global value flow
* Tabs to spaces
2019-04-21 06:54:32 +02:00
703e0a0153
Appveyor: Try to #include proper header for std::uint16_t
2019-03-13 21:44:26 +01:00
1ca6d9c847
Appveyor: Fix missing #include for uint16_t
2019-03-13 19:01:54 +01:00
b984897526
ValueFlow: Fix sizeof for array of library type
2019-03-13 18:31:41 +01:00
11e32ff445
ValueFlow: Handle compound assignments in execute()
2019-03-12 18:53:58 +01:00
7b17b33a49
ValueFlow: fix handling of sizeof(*p)
2019-03-11 20:32:24 +01:00
a5ac9fcac5
Running astyle [ci skip].
2019-03-01 15:05:53 +01:00
845c407ab7
Fixed pattern matching in isVariableChanged() to handle normal token list better
2019-03-01 13:23:03 +01:00
5563fef7bb
Fixed #9008 (new crash in clang test suite)
2019-02-28 20:34:07 +01:00
857681a049
Make quick fix for uninitialized variable false positive. Will look more at this soon.
2019-02-28 09:52:52 +01:00
507c7a4388
Improvement to lifetime tracking of addressof and derefencing
...
This will now warn for cases like this:
```cpp
auto& f() {
std::vector<int> x;
return x[0];
}
```
It also improves the handling of address of operator, so it can now warn across some function calls, like this:
```cpp
int& f(int& a) {
return a;
}
int* hello() {
int x = 0;
return &f(x);
}
```
2019-02-22 06:38:56 +01:00
bd7790fd8c
Update copyright year
2019-02-09 07:24:06 +01:00
ae001d4336
Fixed #8957 (Tokenizer::setVarId: varid not set when lambda function is used)
2019-02-03 08:57:04 +01:00
738fef6c27
Run astyle
2019-01-12 21:51:39 +01:00
5276fd68b2
Remove unused test functions
...
[ci skip]
2019-01-12 18:32:18 +01:00
8dd641b8be
Use OVERRIDE in test
2019-01-12 15:45:25 +01:00
5636497c0b
Fixed #8863 (false positive: (warning) Accessing an item in container 's'. Either the condition 's.empty()' is redundant or 's' can be empty.)
2019-01-06 12:21:55 +01:00
bba6dfb8b2
Fix issue 4744: ValueFlow: known integer result
...
This fixes valueflow to have a value for `||` operator here:
```cpp
bool f()
{
bool a = (4 == 3); // <-- 0
bool b = (3 == 3); // <-- 1
return a || b; // <-- 1
}
```
2019-01-03 07:05:31 +01:00
39a96a5a16
ValueFlow: Temporarily comment out valueFlowTerminatingCondition
2019-01-02 19:42:08 +01:00
236c88151f
Fixed #8926 (false positive: (style) Condition 's.x<=y' is always true)
2019-01-02 18:05:55 +01:00
115be7dfc8
ValueFlow: better FwdAnalysis for complex expressions
2019-01-01 18:23:47 +01:00
be7afac875
ValueFlow: remove handling of == for complex expressions it did not work properly
2019-01-01 17:23:46 +01:00
13ffefc8b8
Valueflow: Fix right shift with more than 31 bits ( #1553 )
...
When comparing if the shift is large enough to make the result zero, use
an unsigned long long to make sure the result fits. Also, a check that
avoids setting the value if the shift is equal to or larger than the
number of bits in the operand (this is undefined behaviour). Finally,
add a check to make sure the calculated value is not too large to store.
Add test cases to cover this.
This was detected by an MSVC warning.
valueflow.cpp(1350): warning C4334: '<<' : result of 32-bit shift implicitly
converted to 64 bits (was 64-bit shift intended?)
2019-01-01 14:15:50 +01:00
4918a18bfb
ValueFlow: Value of expression after condition
2018-12-31 17:37:38 +01:00
141ce7cd63
ValueFlow: Use FwdAnalysisAllPaths in ValueFlow to track complex expressions
2018-12-31 17:05:46 +01:00
a40fe3c67f
Fixed #7872 (ValueFlow: static_cast)
2018-12-27 21:33:01 +01:00
bc34f0239d
Disable the subfunction value flow analysis. It does not work well and needs to be rewritten. There are false positives.
2018-12-18 14:36:49 +01:00
3262a3bebe
Add isSameExpression to valueflow analysis
...
Check for same expressions in valueflow analysis.
2018-12-16 07:35:27 +01:00
88c61e8d1e
ValueFlow: Avoid FP when lambda is used
2018-12-04 18:54:26 +01:00
f5a94ed300
ValueFlow: Fix FP when lambda is called
2018-12-04 18:46:00 +01:00
61878c5e11
Add null pointer check to fix SEGFAULT ( #1499 )
...
* Add null pointer check to fix segfault
* Add first test case to reproduce problem
2018-12-02 14:36:01 +01:00
2887ee10c0
Fixed #8800 (Possible variable assignment ignored in boolean expression)
2018-11-26 14:00:03 +01:00
a3921ea861
Refactor valueFlowAfterCondition
...
So this unifies the `valueFlowAfterCondition` so it re-uses more code between checking for integers and container sizes. This should make valueFlowContainer more robust.
It also extends valueflow to support container comparisons such as `if (v.size() < 3)` or `if (v.size() > 3)` using the same mechanism that is used for integers.
2018-11-24 10:07:12 +01:00
d5a478d5c5
astyle formatting
...
[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
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
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
8a54420274
ValueFlow: Try to handle multiple argument values in <returnValue> evaluation
2018-11-04 20:52:12 +01:00
6878de2c5e
ValueFlow: getExpressionRange, valueFlowRightShift
2018-11-03 23:25:46 +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
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
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
866d198756
Fixed #8697 (noreturn output stream)
2018-08-21 06:32:33 +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
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
...
[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
f9a5a114bb
astyle formatting
...
[ci skip]
2018-07-25 07:44:06 +02:00
9895ea5ff2
Fix issue 470: Condition is always true or false on logical operators ( #1294 )
...
* 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
ce50df8047
Fix override warnings. ( #1234 )
2018-05-15 16:37:40 +02:00
0561877182
Fix false positive with negative array index in issue 8536 ( #1202 )
...
* Fix FP with negative array index in valueflow
* Remove values when valueflow fails
* Add valueflow test
2018-05-06 08:35:29 +02:00
c84628c28a
Fixed #8494 (False positive: serialization class overloads operator)
2018-04-17 14:23:04 +02:00
d8b3fa5c70
Fix #8482 : Regression with valueflow ( #1159 )
...
* Fix regression with valueflow
* Simplify test case
2018-04-09 16:13:17 +02:00
bbfcccf078
Refactorization: Replace several push_back-sequences by initializer lists
2018-04-09 09:41:24 +02:00
aed84abfd5
Extend valueflow comparison ops ( #1153 )
...
* 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
b871c85b67
Improve valeflow analysis with comparison operators ( #1131 )
...
* 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
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
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
e62b9bdc77
Fixed #8348 (ValueFlow: wrong Uninit value with abort() in else-branch)
2018-02-11 22:14:44 +01:00
c4caee6b18
Updated copyright year
2018-01-14 15:37:52 +01:00
1b13490ac1
Move code
2018-01-11 14:27:41 +01:00
6fd157e93b
ValueFlow: Template arguments have 'possible' values
2018-01-11 14:22:27 +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
1d5e3e4f0c
Fixed #8247 (False positive knownConditionTrueFalse)
2017-10-20 17:31:58 +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
2a6f63d995
Resolve C4305 - double constant truncated to float
2017-10-11 23:36:51 +03:00
2a6fbe2e3c
astyle formatting
...
[ci skip]
2017-10-05 23:01:42 +02:00
051a18b120
pull request for ticket 8180 (better diagnostic output for bailouts) ( #964 )
...
* 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
5f4b06c0f4
isVariableChangedByFunctionCall: Fix FN when constructor argument is const reference
2017-09-20 14:03:56 +02:00
4318521fc1
Fixed #8187 (isVariableChangedByFunctionCall: Constructor reference argument)
2017-09-20 12:53:25 +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
a02fd54a69
ValueFlow: Avoid FPs for aliased variables
2017-09-03 23:24:55 +02:00
30f04a5a96
Fixed #8195 (False positive uninitvar (regression) - valueflow misses variable initialization via istringstream >>)
2017-09-02 21:53:51 +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
e58344c2c9
Fixed compiler warning
2017-07-22 16:23:33 +02:00
bf5040e3d6
Fixed #7701 (ValueFlow: handle 64-bit unsigned values )
2017-07-22 12:19:46 +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
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
040d2f0012
Use simplecpp lexer in test cases
2017-05-18 21:52:31 +02:00
980ca39fe2
valueFlowForward: better handling of sizeof() in rhs in assignments
2017-04-29 08:25:55 +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
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
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))"
...
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
72e4bc9d88
ValueFlow: skip values that cause false assertion condition
2016-12-17 21:23:14 +01:00
cb5a5e6a25
Improve Fix #6180 (Access of moved variable still allowed until function is called)
2016-12-17 16:42:46 +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
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)
...
Signed-off-by: Stefan Weil <sw@weilnetz.de>
2016-11-27 11:40:42 +01:00
d40f4e4a55
Fixed #7778 (valueFlowAfterAssign: alias)
2016-11-21 17:26:36 +01:00
74fa69fe5e
Fixed #7821 (syntax error, first token is &)
2016-11-20 17:59:50 +01:00
c8ff96fe8f
Fixed #6180 (Usage of variable after std::move or std::forward)
2016-11-20 15:14:49 +01:00
5b377ea2e4
Fixed #7821 (segmentation fault, invalid last token)
2016-11-20 14:15:51 +01:00
e1e9eacccc
ValueFlow: Added float type
2016-11-13 22:59:56 +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
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
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
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
4f051bf9dd
Fixed #7599 (valueFlowAST: handle && and || better)
2016-07-17 21:51:20 +02:00
b26dd1ccab
ValueFlow: Handle enums
2016-05-07 20:18:07 +02:00
1ab5805d98
Fixed #6616 (valueFlowForward: for loop, variable in 3rd expression is changed in loop body)
2016-02-08 10:43:41 +01:00
d5884692df
Fixed #7363 (valueflowOppositeCondition - if (size1 > size2) ... else if (size1 < size2) ...)
2016-01-30 22:13:03 +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
b9a4a950a2
Fixed #7144 (Tokenizer::isScopeNoReturn: handling '{ { throw new string(..); } }')
2016-01-18 15:39:20 +01:00
996c9244d8
Update copyright year to 2007-2016.
2016-01-01 15:34:45 +02:00
9cb8e9a07e
Revert "Fixed #3923 (valueFlowForward: assignment in if should not cause bailout for code in else)"
...
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
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
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
4ec333dbb6
Fixed #7007 (ValueFlow: value is not known, modified by subfunction)
2015-11-12 14:59:35 +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
4b0625c570
Fixed #6239 (Possible null pointer dereference after pointer is modified by a function template)
2015-10-27 12:33:46 +01:00
60f8982999
Fixed #7039 (ValueFlow: bitand calculation '16&15')
2015-10-14 10:44:04 +02:00
3a5cef8a7e
Refactorization: Improved usage of Settings instances in test suite
2015-10-07 18:40:03 +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
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
e759710198
Fixed #6743 (valueFlowAfterCondition: wrong value when variable is changed in conditional code)
2015-07-28 08:58:05 +02:00
b50f554b28
TestValueFlow::valueFlowArrayElement: Refactoring tests
2015-07-27 16:25:14 +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
f3b5857b96
improved testing of calculations in valueflow
2015-07-26 12:00:42 +02:00
afd9f071c0
simplified the code for ValueFlow Known/Possible values
2015-07-25 19:36:29 +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
61cf224f32
ValueFlow: Make known loop value possible
2015-07-17 10:24:24 +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))"
...
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
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
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
eb0db322eb
Fixed #6560 (ValueFlow: handling ternary operator better in valueFlowSubFunction)
2015-05-24 17:02:00 +02:00
ca1f19b6d4
Fixed #6378 (valueFlowForward: decrement not handled)
2015-05-02 17:30:09 +02:00
bc5132e0ac
Refactorization: Moved declaration of errout, ... to testsuite.h, uniformized style
2015-03-11 22:54:43 +01:00
d1892786b8
ValueFlow: Improved when using '[' on arrays and strings
2015-02-24 15:57:39 +01:00
8a1b8df1ba
ValueFlow: Improved handling of alias values in valueFlowForward
2015-02-08 19:20:05 +01:00
62a5d88eb0
ValueFlow: Improved handling of strings
2015-02-07 18:14:22 +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
451a277b18
Refactorization: Support function default values in ValueFlow, removed now obsolete CheckNullPointer::nullPointerDefaultArgument().
...
-> 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
33f5d27b53
Fixed varId0 message #6443 .
2015-01-31 10:33:32 +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
...
Refactorization: Reuse result instead of calling MathLib::toLongNumber() twice
2014-12-30 19:56:47 +01:00
ec826a0e0e
Fixed #6022 : Support ++%var% in valueFlowForLoop1
...
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
051d42ae6b
astyle formatting
2014-11-20 14:20:09 +01:00
f5d804f71a
running astyle
2014-11-20 10:13:03 +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
6955e719cf
Collected garbage code tests and moved them to testgarbage.cpp
2014-10-16 10:59:46 +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
ee93d30d94
ValueFlow: improved valueflow for loops that assign variable and then break
2014-09-23 16:06:02 +02:00
05617d7285
Fixed #6118 (False positive: divide by zero - if condition not evaluated properly)
2014-09-04 17:52:14 +02:00
270f59e76a
Fix doxygen warning and astyle formatting
2014-09-03 20:38:41 +02:00
a632f68345
#6122 segmentation fault (invalid code) in in valueFlowForLoop2. Simple fix and testcase.
2014-09-02 19:41:50 +02:00
78932094c8
Fixed crash on garbage code #6106
2014-08-31 12:12:03 +02:00
febbd92fbd
ValueFlow: relocate test
2014-08-27 17:11:38 +02:00
ae8a20b197
Fixed #6086 (False positive: valueFlow, conditional code returns)
2014-08-27 16:59:18 +02:00
23ec9fea8e
Fixed #6024 (False positive (nullPointer) using in 1.66)
2014-08-26 18:48:11 +02:00
5e2ea8b6cd
Fixed crash #6089 by using information stored in Variable instead of accessing Variable::nameToken
2014-08-26 11:08:21 +02:00
37f3c6881b
ValueFlow: Removed testcases for code that has been removed
2014-08-24 08:50:49 +02:00
789b01aad2
ValueFlow: fixed one more hang in valueFlowForward
2014-08-24 08:50:01 +02:00
b2288e5ada
Fixed #6022 (Defect: False positive due to bug in determining bounds of for loop 'for (i = 2; i < 1; ++i)')
2014-08-18 16:45:22 +02:00
5cdbe0f42d
ValueFlow: Improved value flow after for loop
2014-08-17 10:40:22 +02:00
7ca742c454
Fixed #5062 (ValueFlow: Handle comma operator in abstract interpretation)
2014-08-17 06:42:16 +02:00
65f10edcb6
Fixed #5866 (False negative: useless condition or null pointer dereference (null object after while loop, method))
2014-08-16 18:32:25 +02:00
e83f08a825
Fixed #6044 (hang: darkplaces / cl_particles.c)
2014-08-14 06:13:42 +02:00
bdfe43d82c
Fix hang in libdmtx package. found through daca2.
2014-08-13 04:03:17 +02:00
970fda9e79
ValueFlow: Fixed nullpointer FP warning in checksizeof
2014-08-11 16:21:20 +02:00
9eb28cb8af
ValueFlow: Improved analysis of assignments
2014-08-05 08:28:46 +02:00
a2f776b1b7
Dead pointer: Added checking for dead pointer usage when pointer alias local variable that has gone out of scope.
2014-08-05 06:24:23 +02:00
d35ce5f0db
ValueFlow: Better handling of calculated function arguments in valueFlowSubFunction
2014-08-04 12:31:04 +02:00
344016f7ab
ValueFlow: Handle string values in valueFlowSubFunction
2014-08-04 12:13:15 +02:00
79fc549de0
ValueFlow: start adding valueflow handling of strings and pointer aliases
2014-08-03 20:11:22 +02:00
f908959196
ValueFlow: improved analysis in for loops to avoid fp
2014-08-01 16:12:57 +02:00
57c2e928d1
ValueFlow: Simple multivariable control flow analysis to avoid FP when 'control variable' is used
2014-08-01 07:35:15 +02:00
25846cf223
ValueFlow: Fix for if/else valueflow analysis
2014-07-30 18:12:33 +02:00
15bb447fdc
Fixed #5965 (False positive zerodiv - loop iterating over double variable)
2014-07-17 08:44:55 +02:00
5bdd197b01
Fixed #5981 (FP: nullPointer on repeated switch)
2014-07-16 09:12:56 +02:00
987ce5a408
Fixed #5968 (False positive: 'Possible null pointer dereference' when checking null in negated conjuction)
2014-07-07 17:48:58 +02:00
b7d7633b97
ValueFlow: Improved analysis after switch
2014-06-30 17:56:42 +02:00
f1762f9ed6
Fixed #5939 (fp: Possible null pointer dereference, after check against NULL in for loop)
2014-06-30 07:26:48 +02:00
df799f97c5
valueFlowBefore: better analysis of conditional assignment
2014-06-30 00:02:49 +02:00
4f43e4f9aa
Fixed #5959 (ValueFlow: return value from subfunction)
2014-06-29 18:04:38 +02:00
893996d182
Fixed #5937 (ValueFlow: wrong analysis of calculations with different variable operands)
2014-06-29 10:57:39 +02:00
9eaadc81e2
Fixed #5861 (valueFlowSubFunction: fp for float value)
2014-06-28 12:04:20 +02:00
5af96c2dd8
Fixed #5947 (valueFlowForward: forward conditions not handled properly)
2014-06-25 16:00:56 +02:00
c77786a745
valueFlowAfterCondition: wrong analysis for floats
2014-06-25 06:17:44 +02:00
54aede9086
Fixed #5941 (ValueFlow: Wrong value in subfunction under ?)
2014-06-24 19:30:46 +02:00
ef81bc363a
ValueFlow: analysis in condition.
2014-06-19 17:29:41 +02:00
13761927ff
ValueFlow: better analysis in valueFlowAfterCondition of 'if|while ( %var% )' etc
2014-06-18 06:57:48 +02:00
9999ce9468
ValueFlow: extend aftercondition analysis below conditional code
2014-06-18 05:51:23 +02:00
847bb44bdd
ValueFlow: Improved analysis after condition when ! operator is used
2014-06-16 16:39:41 +02:00
cb9725b18a
ValueFlow: Fixed testcase
2014-06-15 17:15:09 +02:00
a27ca11b85
Fixed #5916 (ValueFlow: Add a valueFlowAfterCondition() function)
2014-06-15 16:47:01 +02:00
ad879320e5
ValueFlow: Fixed 'function call => calculation' value flow
2014-06-13 16:34:57 +02:00
5a23b739da
ValueFlow: Improved bailout when variable is reassigned
2014-05-03 12:49:07 +02:00
fadc27092e
Fixed #5752 (FP (error) Possible null pointer dereference)
2014-05-01 15:15:26 +02:00
b5e023a46c
Fixed #5472 (sizeof not handled as operator with respect to null pointer dereference)
2014-04-29 20:09:11 +02:00
1233d8e47f
Fixed #5657 (false positive: (error) Possible null pointer dereference: p)
2014-04-28 15:54:54 +02:00
3300d39854
Fixed #5721 (valueFlowBeforeCondition: stop when goto label is seen)
2014-04-28 06:21:48 +02:00
b74e997435
Fix false positive nullPointer messages within sqlite3 after goto by adding a suitable bailout inside valueFlowAfterAssign()
2014-04-26 14:41:28 +02:00
853d56030b
Fixed #5559 (false positive: (error) Possible null pointer dereference: pSTRunner)
2014-04-26 11:27:58 +02:00
fe80f858d1
ValueFlow: Improved analysis in the valueFlowAfterAssign
2014-04-22 16:10:20 +02:00
56eb717b8a
Fixed #5656 (false positive: (error) Possible null pointer dereference: f)
2014-04-18 16:10:18 +02:00
5ee85ee88a
ValueFlow: Improved handling of bitand against a single-bit integer literal
2014-04-14 06:45:39 +02:00
d4765bccc3
Refactorized inefficient usage of std::string and const char[] (part 2).
2014-04-03 14:56:14 +02:00
830249d72e
Fixed #5510 (FP: nullPointer - variable initialized in function call)
2014-04-01 07:06:20 +02:00
e5301b2b7a
ValueFlow: Improved valueflow of for loop 'for (i=a; i<10; i++)' => unknown start value but end value is known
2014-03-29 20:20:22 +01:00
c8004a8d31
Buffer overruns: Use ValueFlow to detect negative index
2014-03-25 18:22:22 +01:00
dbc8273cb7
ValueFlow: improved abstract interpretation of for loops
2014-03-24 00:16:02 +01:00
c14a3d67bb
ValueFlow: Handle division by zero better in abstract interpretation
2014-03-23 20:37:56 +01:00
30fa187b30
Fixed #5549 (ValueFlow: Handle static variables better in valueFlowAfterAssign)
2014-03-23 17:57:27 +01:00
b6276058da
Value Flow: Improved abstract interpretation of arithmetical expressions
2014-03-22 19:02:33 +01:00
fc014f055f
ValueFlow: Removed wrong bailout
2014-03-21 08:33:45 +01:00
01c29ed15f
Fixed #5518 (FP regression in 1.64: Array accessed out of bounds)
2014-03-18 17:04:33 +01:00
e240282443
Value Flow: Another try with the abstract interpretation of for loops
2014-03-17 18:43:47 +01:00
8c3f2c2ad9
Revert 894a65b0. abstract interpretation of for loops. there was some crashes and performance problems. I will fix those problems when I have time and recommit.
2014-03-16 08:38:52 +01:00
894a65b0b1
ValueFlow: Refactor the for-loop handling. Use abstract interpretation.
2014-03-15 11:29:33 +01:00
f6b42633e8
Fixed #5434 (FP: Out-of-bounds access with ternary operator in loop)
2014-02-22 17:59:12 +01:00
34730f623a
Fixed #5301 (False positive: (error) Division by zero - variables read from input stream)
2014-02-22 12:09:54 +01:00
690c37633b
ValueFlow: Fixed bad values after break/continue
2014-02-17 20:07:38 +01:00
fd3a8a2a18
Update copyright
2014-02-15 07:45:39 +01:00
b3bfd5014d
Fixed #5433 (FP:Possible null pointer dereference)
2014-01-31 15:43:34 +01:00
be082a8e4a
value flow: added bailout for conditional return/continue/break when number_of_if is bigger than 0
2014-01-26 15:50:25 +01:00
c5971b7137
value flow: fix fp when conditional value is assigned
2014-01-25 20:14:49 +01:00
c1e35e1df1
value flow: fixed multivariable problem in condition
2014-01-25 19:13:33 +01:00
df0995edf5
Fixed #5403 (Value flow: FP because post increment/decrement is not handled correctly)
2014-01-25 18:31:02 +01:00
35b51468cb
value flow: Fixed FP for division then check in for loop: 'for (a=b/x;x>0;x--)'
2014-01-25 09:22:32 +01:00
4647a9fc93
Fixed #5401 (value flow: fp when there are increment/decrement)
2014-01-24 18:22:38 +01:00
1cac7e1686
value flow: better handling in function call bailout of casting address of variable
2014-01-24 17:47:49 +01:00
f3f7e6d302
value flow: replacing executionpath checking of null pointers
2014-01-22 20:16:31 +01:00
cc38dec3ad
value flow: a bit better handling of assigned variable
2014-01-22 06:10:17 +01:00
a27ccbd0f8
value flow: start implementing value flow analysis of assigned value
2014-01-21 21:13:49 +01:00
bb3cc67aaa
value flow: improved calculations that depends on variable
2014-01-20 21:45:30 +01:00
98305e9163
astyle formatting
2014-01-20 06:31:28 +01:00
7ff7bc1c2e
Fixed #5376 (false positive: zerodivcond (style) Either the condition 'B>0' is useless or there is division by zero)
2014-01-19 20:16:55 +01:00
84c5f47eb1
value flow: bailout for class variables that are non-const
2014-01-19 11:55:02 +01:00
ccda78f347
value flow: fixed todo assertion for handling of conditions
2014-01-19 09:31:40 +01:00
cdaa7abf7e
value flow: better handling of conditional code below || && ?: operators
2014-01-19 09:05:48 +01:00
77f3f6c21a
valueflow: added setTokenValue that perform calculations using set value
2014-01-18 19:30:44 +01:00
c7032a8867
value flow: improved handling of loops
2014-01-18 11:54:00 +01:00
d0d56aee4a
TestValueFlow: split up valueFlowBeforeCondition into smaller functions
2014-01-18 08:45:24 +01:00
57d318b2e5
valueflow: better handling of increment/decrement
2014-01-17 19:28:28 +01:00
30cae358d8
Removed the --value-flow flag. ValueFlow analysis will always be enabled from now on.
2014-01-17 18:07:05 +01:00
d43191a9e3
value flow: remove duplicate test case
2014-01-14 18:13:17 +01:00
c547c9a108
value flow: fixed fp when variable is used in for-loop condition
2014-01-14 17:57:50 +01:00
7981e3d38f
value flow: fix fp when gotos are used
2014-01-13 16:07:25 +01:00
b1bbb23225
value flow: fixed fp when checking symboldatabase
2014-01-13 05:52:28 +01:00
2e67ca06c0
value flow: some simplifications in unknown functions when there is library configuration
2014-01-12 18:19:00 +01:00
d700114edf
value flow: bailout if condition is defined by macro
2014-01-12 17:16:51 +01:00
3d79613f2b
value flow: more bailouts when return/break/continue/goto is reached. TODO: handle these better.
2014-01-12 15:07:58 +01:00
d8262963d9
value flow: condition in loop, bailout valueflow analysis before loop if there is assignment inside the loop
2014-01-12 11:58:10 +01:00
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