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1154 Commits

Author SHA1 Message Date
Daniel Marjamäki
730b95331e Fixed #9905 (False positive: known argument 'header.length()') 2020-09-20 20:17:10 +02:00
Paul
75b955b9c6 Fix issue 9833: False positive: Division by zero when using pointer to struct 2020-09-09 21:29:26 -05:00
Paul Fultz II
bfe53fce04
Fix issue 9878: false positive: multiCondition (#2787) 2020-09-09 15:39:36 +02:00
Paul Fultz II
a4f43fc2ad
Fix issue 8234: false negative: (warning) Opposite inner 'if' condition leads to a dead code block. (#2781) 2020-09-07 07:53:41 +02:00
Daniel Marjamäki
1daf1ec108 Fixed #9875 (Crash) 2020-09-04 19:15:48 +02:00
Daniel Marjamäki
5acd6fcdc8 astyle formatting 2020-09-03 18:55:40 +02:00
shaneasd
08ea6435ac
fix false positives in constParameter (#2758) 2020-09-03 18:44:44 +02:00
Paul Fultz II
3e99bff764
Same expression when comparing with zero (#2762) 2020-08-31 08:48:48 +02:00
Paul Fultz II
02287d9d34
Fix issue 7324: valueFlowForward : decrement (#2737) 2020-08-24 13:10:36 +02:00
Daniel Marjamäki
5372e93964 Fixed #9825 (redundantAssignment: Do not warn about volatile data) 2020-08-06 22:18:25 +02:00
Daniel Marjamäki
7a85b8e452 Do not ask that calculation is clarified when different order would be invalid 2020-08-05 13:20:18 +02:00
Ken-Patrick Lehrmann
61ccf888b3 Fix some false positives when the same expression at different places does not have the same value 
Typically with
```
int F(int *f);
void F2(int *a, int *b) {
  int c = *a;
  F(a); // modifies *a
  if (b && c != *a) {}
}
```
we would get the following FP:
```
[test.cpp:3] -> [test.cpp:5]: (style) The comparison 'c != *a' is always false because 'c' and '*a' represent the same value.\n
```

I guess it boils down to isSameExpression only checking that the
expression is the same (in the above case, "*a" and "*a" are indeed the
same), but there's not real check on the values.
So the patch here is a bit hackish, and we still have false negatives in
cases with dereferenced pointers.
 2020-07-11 14:13:18 +02:00
Daniel Marjamäki
d2b2bae7bf Fixed #7733 (False positive: scope of the variable can be reduced (variable is used in hidden code)) 2020-07-01 08:24:52 +02:00
Paul
cf475fab51 Fix issue 9778: False positive: constParameter when returning non-const reference cast 2020-06-26 15:47:59 -05:00
Paul
1676ad5f45 Fix issue 9710 and 9767: Use AST to get function from argument 2020-06-25 12:54:46 -05:00
Paul Fultz II
03b41ac987
Fix issue 9718: False positive: Parameter can be declared const when written to via stream extraction operator (#2677) 2020-06-13 09:20:40 +02:00
Paul Fultz II
eb4754b7d9
Fix issue 9587: False positive: parameter can be declared with const (#2667) 2020-05-31 10:10:10 +02:00
Daniel Marjamäki
c86cfdaa50 Fixed #9736 (False positive: knownArgument in assert calls) 2020-05-22 11:49:28 +02:00
miltolstoy
a9d8b3495d
feat: add modulo of one check (#9528) (#2650) 2020-05-20 23:01:32 +02:00
PKEuS
c9d8f607df Optimization: Reduced peak memory usage (30% in my test case) by immediately deleting simplecpp::TokenList while creating the cppcheck TokenList. 2020-05-19 12:08:17 +02:00
Daniel Marjamäki
330e634937 Revert "TestTrac: Add separate file for black box / integration tests in testrunner" 
This reverts commit e895fa4c3fa958b7c3ec6091259b085434671fbf.
 2020-05-19 07:53:54 +02:00
Daniel Marjamäki
e895fa4c3f TestTrac: Add separate file for black box / integration tests in testrunner 2020-05-18 20:22:00 +02:00
shaneasd
7bfd686f04
Fix #9700 duplicateBranch false positive from missing scope operator :: in ast (#2646) 2020-05-18 19:31:13 +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 6eec6c4bd53d42e3a1179fd3a8a7dae5a43d4d50.
 2020-05-10 11:13:05 +02:00
Daniel Marjamäki
6eec6c4bd5 Update copyright year 2020-05-10 11:11:34 +02:00
Daniel Marjamäki
da6e0308c5 Fixed #9195 (False positive: shadowFunction when constructor is shadowed) 2020-04-20 18:02:10 +02:00
Daniel Marjamäki
54978847c5 Fixed #8916 (FP: followVar does not seem to handle non-const method call properly) 2020-04-18 19:54:55 +02:00
Daniel Marjamäki
5376ba1701 AST: Throw validation exception if ternary operator is missing operands 2020-03-07 21:46:38 +01:00
amai2012
b795d30db6 Enable another zeroDivCond test which got fixed recently 2020-03-06 17:15:54 +01:00
Rikard Falkeborn
f6e7fb4bd9
Bugfix valuetype for some integer constants (#2545) 2020-02-19 07:51:39 +01:00
Daniel Marjamäki
320cb9008f minor tweaks of knownConditionTrueFalse 2020-02-15 20:21:13 +01:00
Rikard Falkeborn
b1c6f2946a
Fix redundant FP assignment with unsigned zero (#2521) 
* Refactor isNullOperand out of FwdAnalysis

* Improve isNullOperand

* Fix redundantAssignment FP with unsigned zero

* isNullValue check number

* Enhance isNullOperand to handle c++ casts

Also handle cast of NULL.
 2020-02-09 11:16:08 +01:00
Daniel Marjamäki
e78775fac3 astyle formatting 
[ci skip]
 2020-01-10 11:31:12 +01:00
Rikard Falkeborn
9afeef01c6 Improve duplicateExpressionTernary (#2484) 
Test both the cases where sizeof(int) == sizeof(long) and when they are
different to improve testing.
 2020-01-10 10:02:50 +01:00
Ken-Patrick Lehrmann
eca7ee9260 9356: Prevent false positive when passing non-const reference to member constructor (#2370) 
* Add cases for 9356

* 9356: Prevent false positive when passing non-const reference to member constructor

This workarounds false positives 'Parameter  can be declared with const [constParameter]'
when said parameter is used in constructor call. It assume the
constructor call might change the parameter (without any checks.
The drawback is that we have false negative, in cases where we could
check the constructor actually takes a const reference, or a copied by
value parameter.

* Add todo comment in isVariableMutableInInitializer
 2020-01-04 11:36:45 +01:00
Daniel Marjamäki
235ef0a01e Fixed #9420 (False positive - redundantInitialization) 2019-12-18 19:39:23 +01:00
Daniel Marjamäki
bcfc5924fa Fixed #9532 (False positive: Out of bounds access in expression 'v[0]' because 'v' is empty.) 2019-12-14 19:04:19 +01:00
Paul Fultz II
06752d75a5 Fix issue 9485: knownConditionTrueFalse false positive with integer constants (#2447) 
* Fix issue 9485: knownConditionTrueFalse false positive with integer constants

* Formatting
 2019-12-14 09:15:00 +01:00
Dmitry-Me
064795a705 Remove duplicate test 
This partially reverts commit 047418dda13bf7c7df9788435b316450259bbd9e
 2019-12-11 19:17:59 +03:00
amai2012
f5df06a143 Run astyle [ci skip] 2019-12-08 11:22:19 +01:00
Dmitry-Me
047418dda1 Improve test coverage for redundant bitwise operations 2019-12-06 19:14:03 +03:00
Paul Fultz II
ed1acc319d Fixx issue 9355: FP constParameter when returning non-const reference to struct member (#2373) 2019-11-18 06:39:50 +01:00
Rikard Falkeborn
38dea4719b Fix #9166 (print proper types in invalidCast message) (#2347) 
* Fix #9166 (print proper types in invalidCast message)

* Use ValueType->str()

* astyle

* Set default sign to avoid issues on different platforms
 2019-11-11 07:17:50 +01:00
Dmitry-Me
0b97f37736 Improve test coverage 2019-11-01 18:41:10 +03:00
Daniel Marjamäki
68ea60d207 Try to make Travis happy 2019-10-20 07:44:56 +02:00
Daniel Marjamäki
00fae7fb42 Fixed #9261 (Inconsistent violation report between using global enum and namespaced enum.) 2019-10-20 07:07:38 +02:00
Daniel Marjamäki
4943771e41 Fix #9262 (False positive on variable assignment when putting enum in namespace) 2019-10-19 21:41:50 +02:00
Daniel Marjamäki
99ef64459b Fixed #9344 (FP redundantAssignment related to increasing index variable for vector) 2019-10-17 18:31:05 +02:00
Steve Mokris
506a952ad2 Parse extern "C", and use it to avoid FP reference warnings (#2234) 
Previously, cppcheck discarded the `extern "C"` specifier.  This patch modifies cppcheck to parse each as a Scope in the symbol database, then uses that scope to avoid false positives when making recommendations about changing a function argument to be a reference (since variable references is a C++ feature, unavailable in C, and thus unavailable in `extern "C"`).
 2019-10-08 17:48:09 +02:00