Daniel Marjamäki
3989408738
Update copyright year
2022-02-05 11:45:17 +01:00
Oliver Stöneberg
171da2e6f9
avoid dependency on transitive includes - based on include-what-you-use ( #3757 )
2022-01-27 19:03:20 +01:00
Paul Fultz II
7bf0ca8d00
Fix 10672: crash: CheckAutoVariables ( #3657 )
2022-01-01 00:14:36 +01:00
Rikard Falkeborn
8537331ad6
AutovarDeallocation: Fix grammar in error message ( #3654 )
2021-12-23 20:09:55 +01:00
Rikard Falkeborn
e7b6920cf4
Fix #10600 : FP invalid dealloc of function array argument ( #3613 )
...
Do not warn for array arguments that are free'd, since they decay to
pointers.
2021-12-09 07:16:40 +01:00
Rikard Falkeborn
1a50146745
autovarInvalidDeallocation: Fix fp with impossible value ( #3604 )
...
daca reports new false positives after db4f94fdfe
on the form:
void f() {
char *ptr = malloc(10);
char *empty_str = "";
if (ptr == NULL)
ptr = empty_str;
if (ptr != empty_str)
free(ptr);
}
Add a check that the value is not impossible to avoid this.
2021-12-05 15:47:21 +01:00
Rikard Falkeborn
db4f94fdfe
Fix #7341 : Dealloc string literal ( #3586 )
2021-11-30 07:31:28 +01:00
Paul Fultz II
57f5b19b34
Fix 7812: False negative: return pointer of local variable ( #3583 )
...
* Fix 7812: False negative: return pointer of local variable
* Format
* Add test case for 3029
* Format
2021-11-28 15:25:21 +01:00
Daniel Marjamäki
f701a9361d
chmod; Use 644 for source files
2021-11-17 08:25:25 +01:00
Paul Fultz II
c057dcce0f
Fix 10592: False positive: returnDanglingLifetime ( #3557 )
2021-11-11 08:00:05 +01:00
Paul Fultz II
b835744a81
Fix 10585: FP danglingTemporaryLifetime recent regression ( #3544 )
...
Fix 10585: FP danglingTemporaryLifetime recent regression
2021-11-04 09:24:24 +01:00
Paul Fultz II
d3f0aa5b34
Fix 10033: false negative: danglingTemporaryLifetime with usage of reference from nested object not detected ( #3542 )
2021-11-01 19:23:15 +01:00
Paul Fultz II
7d7584b456
Fix 10575: Improve check; lifetime, struct member points to local data ( #3541 )
2021-11-01 19:22:21 +01:00
Paul Fultz II
8668d445c7
Add support for string_view ( #3480 )
2021-10-05 08:28:19 +02:00
Paul Fultz II
95c872b1ec
Fix todo test for returning a dangling reference ( #3284 )
2021-06-04 17:15:39 +02:00
Ken-Patrick Lehrmann
9aa131a12e
Remove unnecessary null check ( #3215 )
...
Spotted by coverity (as the condition in the `if` part `isArrayVar(tok)`
dereferences tok.
Tok can't be null here, because the condition in the `else if`on line
268 checks that there is a `%var%` following, and
`tok = Token::findmatch(tok->next(), "%var%");` simply gets this `%var%`
token.
2021-04-28 18:05:32 +02:00
Paul Fultz II
db5f00a16a
Fix issue 10214: FP: danglingTempReference doesn't account for reference lifetime extension ( #3220 )
...
* Fix issue 10214: FP: danglingTempReference doesn't account for reference lifetime extension
2021-04-19 14:20:29 +02:00
Paul Fultz II
563c9dd9cc
Fix issue 10208: FP: knownConditionTrueFalse in for loop with function that assigns by ref ( #3198 )
2021-04-18 21:42:27 +02:00
Oliver Stöneberg
6397e29f84
cleaned up includes based on include-what-you-use ( #3141 )
2021-04-03 21:30:50 +02:00
Daniel Marjamäki
42437277dc
Update Copyright year
2021-03-21 20:58:32 +01:00
PKEuS
141d2ac215
Refactorization: Improved internal implementation of severity and certainty levels
...
Backported from LCppC.
2021-02-24 22:00:06 +01:00
PKEuS
6a811eec1c
Refactorization: Removed unused functions
2021-02-17 22:44:03 +01:00
Paul Fultz II
0ecac8e23b
Fix issue 10090: ValueFlow: Wrong lifetime, pointer member is not allocated on stack ( #3109 )
2021-02-03 10:22:31 +01:00
Daniel Marjamäki
bf236e91d7
Fixed #9918 (False positive: autoVariable pointer is NULLed later)
2020-09-28 22:48:57 +02:00
Paul Fultz II
857722f859
Fix issue 9711: FP knownConditionTrueFalse for variable modified via pointer ( #2813 )
2020-09-20 14:27:09 +02:00
Paul Fultz II
34d65e25d6
Merge branch 'main' into lifetime-subfunction
2020-09-09 12:02:02 -05:00
Paul
8d7088aa24
Fix issue 9835: False negative: Return reference to temporary with const reference
2020-09-08 18:30:45 -05:00
Paul
1be67ea008
Merge
2020-09-08 11:00:57 -05:00
Paul Fultz II
362ab44c40
Fix issue 9646: False negative: Return reference to temporary with const reference ( #2782 )
2020-09-07 10:52:54 +02:00
Paul
786672e19d
Format
2020-09-06 21:59:21 -05:00
Paul
c7a5d3c5f1
Fix FPs
2020-09-06 21:58:36 -05:00
Paul
264c0cae8b
Formatting
2020-09-04 11:59:30 -05:00
Paul
bb37b07def
Extend lifetimes to subfunctions
2020-09-04 11:56:34 -05:00
Paul Fultz II
0a718694af
Fix issue 9852: False positive: danglingTemporaryLifetime when returning a vector of vectors ( #2766 )
2020-09-01 11:21:29 +02:00
Paul
e2a81a382f
Track reading aliases during valueflow forward
2020-07-19 23:25:35 -05:00
Paul Fultz II
eb4754b7d9
Fix issue 9587: False positive: parameter can be declared with const ( #2667 )
2020-05-31 10:10:10 +02:00
Oliver Stöneberg
37bc0483a4
made check.h less heavy ( #2633 )
2020-05-23 07:16:49 +02:00
Daniel Marjamäki
08ddd84780
Update copyright year
2020-05-10 11:16:32 +02:00
Daniel Marjamäki
3e0218299b
Revert "Update copyright year"
...
This reverts commit 6eec6c4bd5
.
2020-05-10 11:13:05 +02:00
Daniel Marjamäki
6eec6c4bd5
Update copyright year
2020-05-10 11:11:34 +02:00
Paul Fultz II
453a69dd8c
Fix issue 9677: False positive: returning pointer to oject that will not be invalid ( #2607 )
...
* Fix issue 9677: False positive: returning pointer to oject that will not be invalid
* Formatting
2020-04-18 09:23:10 +02:00
orbitcowboy
acdc62f8f0
Formatted the code. There are no functional changes [ci skip]
2020-03-26 17:03:21 +01:00
Paul Fultz II
5462e43161
Fix issue 9639: False positive: Returning object that points to local variable that will be invalid when returning ( #2576 )
...
* Follow reference when tracking local variables
* Fix issue 9639: False positive: Returning object that points to local variable that will be invalid when returning
2020-03-23 22:54:53 +01:00
Daniel Marjamäki
a5a294cf13
Code cleanup
2020-01-25 18:11:54 +01:00
Daniel Marjamäki
f911495db3
Clang import; Handle clang-9 while loop better
2020-01-25 16:10:13 +01:00
Daniel Marjamäki
7db54bde6f
Run normal checks on --clang output
2020-01-24 18:04:39 +01:00
Paul Fultz II
d1f225b8ee
Fix issue 9201: FP: returnDanglingLifetime on pointer to variable of static struct ( #2303 )
...
* Fix issue 9201: FP: returnDanglingLifetime on pointer to variable of static struct
* Fix capture of non-local variables in lambdas
2019-11-05 07:10:32 +01:00
Paul Fultz II
c38bbb75e4
Fix issue 9448: Check for temporaries from library function calls ( #2312 )
2019-11-03 22:02:10 +01:00
Paul Fultz II
4eb4762d95
Extend lifetime checking to temporaries ( #2242 )
...
* Use lifetimes to check for returning reference to temporaries
* Check for dangling temporaries
* Check for unknown types for returining by reference
* Remove old returnTemporary check
* Format
* Check for deref op
* Ternary operator return an lvalue reference
* Warn when returning temporaries from member functions
* Improve handling of pointer to function
* Extend lifetimes of const references
2019-10-08 09:28:39 +02:00
Paul Fultz II
ba037837c9
Track lifetime across multiple returns
...
This will now warn when doing something like this:
```cpp
template <class T, class K, class V>
const V& get_default(const T& t, const K& k, const V& v) {
auto it = t.find(k);
if (it == t.end()) return v;
return it->second;
}
const int& bar(const std::unordered_map<int, int>& m, int k) {
auto x = 0;
return get_default(m, k, x);
}
```
The lifetime warning is considered inconclusive in this case.
I also updated valueflow to no tinject inconclusive values unless `--inconclusive` flag is passed. This creates some false negatives because library functions are not configured to not modify their input parameters, and there are some checks that do not check if the value is inconclusive or not.
2019-09-11 19:25:09 +02:00