Daniel Marjamäki
7cd7aff60a
Fixed #9285 (Misleading warning message)
2019-11-16 17:24:54 +01:00
Daniel Marjamäki
fadf209e18
Add test for #9326 (FP knownConditionTrueFalse - Returning bool variable treated as condition)
2019-11-03 08:49:39 +01:00
Daniel Marjamäki
df8bdabddd
Testing; Readded tests
2019-11-03 08:45:34 +01:00
Daniel Marjamäki
9094ff01d3
Fixed #9363 (knownConditionTrueFalse: False positive about function parameter)
2019-10-31 08:34:09 +01:00
Paul Fultz II
0df4876059
Fix issue 9367: FP knownConditionTrueFalse ( #2209 )
2019-09-24 08:15:03 +02:00
Paul Fultz II
a903aa7070
Fix issue 9351: false negative: (style) Condition '...' is always true ( #2201 )
2019-09-23 08:49:04 +02:00
Paul Fultz II
c1961cec1c
Fix issue 9362: FP: (style) Condition '(v&1)==0' is always false ( #2200 )
2019-09-21 19:53:54 +02:00
Paul Fultz II
40f1635c35
Fix issue 9361: false positive: (style) Condition 'isdigit(c)!=0' is always true ( #2199 )
2019-09-21 08:19:54 +02:00
Paul Fultz II
ad8abdb0c3
Add impossible values to ValueFlow ( #2186 )
...
* Add impossible category
* Replace values
* Try to adjust known values
* Add ! for impossible values
* Add impossible with possible values
* Remove contradictions
* Add values when the branch is not dead
* Only copy possible values
* Dont bail on while loops
* Load std lib in valueflow
* Check for function calls
* Fix stl errors
* Fix incorrect impossible check
* Fix heap-after-use error
* Remove impossible values when they are lowered
* Show the bound and remove overlaps
* Infer conditions
* Dont push pointer values through dynamic_cast
* Add test for dynamic_cast issue
* Add shifttoomanybits test
* Add test for div by zero
* Add a test for issue 9315
* Dont make impossible value inconclusive
* Fix FP with shift operator
* Improve handleKnownValuesInLoop for impossible values
* Fix cppcheck warning
* Fix impossible values for ctu
* Bailout for streams
* Check equality conditions
* Fix overflows
* Add regression test for 9332
* Remove duplicate conditions
* Skip impossible values for invalid value
* Check for null
* Rename bound to range
* Formatting
2019-09-20 15:06:37 +02:00
Paul Fultz II
dc0b3527ad
Fix issue 9311: False positive duplicateCondition "same if condition" with pointer inside array of struct ( #2166 )
...
* Check for typeOf through an array
* Handle array constructors
* Format
* Fix compile error on gcc 4.8
2019-09-10 19:41:35 +02:00
Paul Fultz II
70cad280ea
Fix issue 9319: FP knownConditionTrueFalse related to aggregate initialization of struct ( #2147 )
2019-09-05 19:36:45 +02:00
Paul Fultz II
9e140831eb
Fix issue 9329: FP knownConditionTrueFalse - vector modified by function calls ( #2145 )
2019-09-05 16:42:26 +02:00
Paul Fultz II
ee7fe3aaa1
Fix FP: Unitialized variable when using a pointer
...
This fixes the FP in cases like this:
```cpp
void f() {
bool b;
bool * x = &b;
if (x != nullptr)
x = 1;
}
```
It tracks the indirection of the uninit value in valueflow.
2019-08-17 07:36:41 +02:00
Paul Fultz II
3e0d1141d3
Fix issue 9277: FP: Dont warn for knwon conditions in if constexpr ( #2085 )
2019-08-16 07:56:39 +02:00
Paul Fultz II
0c1dff5c93
Fix issue 9268: false negative: (style) Condition '...' is always true ( #2080 )
...
* Fix issue 9268: false negative: (style) Condition '...' is always true
* Fix copy and paste mistake
2019-08-14 06:34:27 +02:00
Paul Fultz II
c0c6f92221
Fix issue 8431 and 8776: Size of constant string
...
Fixes these cases:
```cpp
void f(void) {
const std::string msg="xyz";
if(!msg.empty()){} // Always true
}
```
And out of bounds access:
```cpp
#include <string>
char fstr1(){const std::string s = "<a><b>"; return s[42]; }
wchar_t fwstr1(){const std::wstring s = L"<a><b>"; return s[42]; }
```
2019-08-12 20:24:16 +02:00
Paul Fultz II
aadc404958
Issue 8634: false negative: (style) Condition '...' is always true ( #2075 )
2019-08-12 11:04:01 +02:00
Paul Fultz II
bd02ca5ccb
Fix issue 9207: Not detected 'always true' and unreachable code
2019-08-08 07:46:47 +02:00
Paul Fultz II
ffdd2dc793
Fix issue 8924: Re-enable valueFlowTerminatingCondition
2019-08-05 07:18:06 +02:00
Paul Fultz II
bb52a63c4e
Add check for const variables
...
When a local reference is declared, this will check if that local reference can be declared as `const`.
2019-07-24 09:59:01 +02:00
Daniel Marjamäki
0eedcfc160
Fixed #7464 (warn about opposite if and else-if conditions)
2019-06-30 23:26:49 +02:00
Daniel Marjamäki
175070ca50
Revert "Fixed #8938 (FP identicalInnerCondition)"
...
This reverts commit 0edf0b5628
.
This bailout seems to cause many false negatives
2019-06-22 21:57:19 +02:00
Daniel Marjamäki
57c6628732
Revert 'Cleaning up unsimplified templates'. This fix caused problems.
2019-05-16 21:11:04 +02:00
Paul Fultz II
195da2b3d2
Fix issue 8993: False positive duplicateCondition related to auto ( #1831 )
2019-05-14 08:57:36 +02:00
Daniel Marjamäki
d58d4273f9
Cleaning up unsimplified templates
2019-05-11 13:00:03 +02:00
Daniel Marjamäki
0e8f2cdf63
Use multiline in testing
2019-04-28 07:48:38 +02:00
Paul Fultz II
c4325bbec3
Fix issue 9103: False positive duplicateConditionAssign ( #1808 )
...
* Fix issue 9103: False positive duplicateConditionAssign
* Update conditional message
2019-04-26 12:30:41 +02:00
Daniel Marjamäki
76e13c45c7
temporarily disable duplicateConditionalAssign
2019-04-25 07:44:19 +02:00
Daniel Marjamäki
0edf0b5628
Fixed #8938 (FP identicalInnerCondition)
2019-04-22 16:54:59 +02:00
Daniel Marjamäki
648acd1cbf
astyle formatting
...
[ci skip]
2019-04-18 20:21:00 +02:00
Paul Fultz II
103002578d
Add check for duplicate condition and assignment ( #1799 )
...
* Add check duplicate condition and expression
* Format
* Add assign token
* Add to classInfo
* Change note messages
2019-04-18 20:20:24 +02:00
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
Daniel Marjamäki
3dc34f1515
Disable all simplified checks
2019-03-16 09:17:50 +01:00
Daniel Marjamäki
f40a80c349
Use 'normal' checking instead of 'simplified'
2019-03-16 07:19:48 +01:00
Paul Fultz II
0ee3f678b5
Fix issue 8987: False positive knownConditionTrueFalse ( #1678 )
2019-02-20 15:28:31 +01:00
Daniel Marjamäki
bd7790fd8c
Update copyright year
2019-02-09 07:24:06 +01:00
rikardfalkeborn
a05079fef7
Add regression test for #8780 ( #1619 )
...
Ticket #8780 was fixed in b839ad60dd
.
Add a test to avoid regressions.
2019-01-25 07:48:18 +01:00
rikardfalkeborn
8356ec6774
Add regression test for #6906 and #7284 ( #1614 )
...
* Add regression test for #6906
Ticket #6906 was fixed in f65cf220ba
.
Add a test to make sure there are no regressions.
* Add regression test for #7284
Ticket #7284 was fixed in 5d1fdf7958
.
Add tests to avoid regressions.
2019-01-23 09:09:03 +01:00
Paul Fultz II
4b37f276c2
ValueFlow: Set arrays to true when converting to a boolean
...
This sets it by checking the parent. It doesn't handle function parameters yet.
2019-01-21 20:05:35 +01:00
rikardfalkeborn
f7d85e9df2
Add regression test for #6904 ( #1611 )
...
Ticket #6904 was fixed in 34dbc3c00c
.
Add a regression test to make sure it doesn't reappear.
2019-01-20 10:05:09 +01:00
amai2012
738fef6c27
Run astyle
2019-01-12 21:51:39 +01:00
Daniel Marjamäki
8dd641b8be
Use OVERRIDE in test
2019-01-12 15:45:25 +01:00
rikardfalkeborn
49bad106bb
Add regression test for 8168 ( #1588 )
...
Ticket 8168 was fixed in 713f607168
.
Add a regression test to make sure the bug doesn't reappear.
2019-01-11 14:11:48 +01:00
Paul Fultz II
5fa956a597
Fix issue 8932: False positive knownConditionTrueFalse - valueflow ignores operator < ( #1584 )
2019-01-11 08:39:23 +01:00
Paul Fultz II
4e147a4c59
Add a check for duplicate if statements
...
This will warn for this:
```cpp
int f(int val)
{
int i = 0;
if( val & 0xff)
i = 1;
if( val & 0xff)
i = 1;
return i;
}
```
2019-01-09 20:41:01 +01:00
practicalswift
0a1b3a9d6f
Fix typos ( #1568 )
2019-01-06 17:15:57 +01:00
Daniel Marjamäki
39ceb53578
Comment out code in valueFlowArray. There was too many false positives.
2019-01-02 19:57:11 +01:00
Paul Fultz II
34330b51d1
Fix issue 8905: Condition 'a==0' is always false
...
This fixes the FP in:
```cpp
void f(const int a[]){ if (a == 0){} }
```
2018-12-18 08:16:43 +01:00
Paul Fultz II
025881cf35
Fix issue 8829: Condition '...' is always true (int buf[42]; if(buf != NULL){})
...
This makes arrays non-null in valueflow, so it can catch comparisons against null that is always true:
```cpp
void f(void) {
int buf[42];
if( buf != 0) {;} // << always true
}
```
2018-12-17 06:07:34 +01:00
Paul Fultz II
5a6f9ac82a
Fix FP with strcmp and terminating conditions
2018-11-27 06:39:29 +01:00