035c70c441
Fix 10578: Value not impossible after check ( #3549 )
2021-11-07 18:19:56 +01:00
a50596df72
Fix 10582: ValueFlow; wrong known value ( #3550 )
2021-11-07 06:51:51 +01:00
d3f0aa5b34
Fix 10033: false negative: danglingTemporaryLifetime with usage of reference from nested object not detected ( #3542 )
2021-11-01 19:23:15 +01:00
8c9c46835a
Fix for 6597: false negative: uninitialized variable usage not detected (ValueFlow , multi variables) ( #3535 )
2021-10-30 22:13:58 +02:00
1f01845efb
Fixed #10531 (FP unreadVariable with reference and *=)
2021-10-25 19:34:19 +02:00
48fc70b810
Dont stop analysis when an unrelated class variable is changed ( #3518 )
2021-10-23 14:47:10 +02:00
876702c4f2
Fix 10098: false negative: 'Reference to temporary returned.' not detected with class ( #3509 )
2021-10-15 10:59:40 +02:00
89515600e4
Fix 10538: FN: nullPointer (std::swap pointers) ( #3504 )
2021-10-15 10:58:16 +02:00
130d1abbce
Fix 10210: FN: nullPointerRedundantCheck regression in member function ( #3512 )
2021-10-15 10:57:40 +02:00
3cb252bd99
Fix 9873: False negative: null pointer when checking raw pointer ( #3485 )
2021-10-06 08:39:58 +02:00
f3e1f0d41b
Fix #10238 : char* confused with char ( #3484 )
2021-10-05 18:04:48 +02:00
8668d445c7
Add support for string_view ( #3480 )
2021-10-05 08:28:19 +02:00
71809044bd
Fix 10522: FP: derefInvalidIterator when using emplace with 1 argument ( #3482 )
2021-10-05 08:23:47 +02:00
428144c53c
Fix #10513 : vector constructed from pointers ( #3473 )
2021-10-04 07:55:17 +02:00
f3d9755e65
UninitVar: too many warnings (pointer dereference)
2021-10-03 18:12:29 +02:00
609e20d9d8
ValueFlow: string can be constructed from init list ( #3459 )
2021-10-02 23:09:49 +02:00
0c16e346f1
Minor: add endsWith() template, empy() check ( #3472 )
2021-09-28 20:34:21 +02:00
5c3b69fe96
Fix 10496: crash: endless recursion (symbolDatabaseCreateExprId => isSameExpr => isSameExpr ...) ( #3467 )
2021-09-25 11:55:49 +02:00
2ee920dc4e
Fixed #10495 (False positive: unreadVariable when assigning to reference returned by method)
2021-09-24 07:30:17 +02:00
6f4ce486a2
Fix FP in constVariable
2021-09-11 20:25:46 +02:00
0335671b35
Fix 10450: regression, FP : Iterator 'iter' from different container 'l' are used together ( #3436 )
2021-09-05 07:35:33 +02:00
4296859c1a
Remove usage of std::vector and getArguments from getTokenArgumentFunction ( #3435 )
...
getTokenArgumentFunction can be called many many times, and the vector
is not needed, but it can become quite costly.
This patch replaces getArguments with a function simply returning the
position of the token, if it is found in the arguments (thus saving the
cost of std::vector).
2021-09-01 10:51:44 +02:00
6541efdb9a
fix selfcheck warning
2021-08-27 22:33:03 +02:00
a55b0c332a
Fixed #10095 (False positive: unreadVariable)
2021-08-27 17:37:42 +02:00
865163b2ba
Add library configurations for free functions like std::size, std::empty, etc ( #3410 )
2021-08-23 09:03:48 +02:00
7f358b2bed
Format with uncrustify ( #3388 )
2021-08-07 20:51:18 +02:00
8b8ae55490
Fix 10129: false negative: knownConditionTrueFalse ( #3382 )
...
* Add symbolic matching
* Check for truncated values
* Dont propagate uninit values
* Update errorpath test
* Add test case for 10129
* Add test case for FP
* Remove symbolic values that are the same as the token
* Fix test messages
* Fix cppcheck issue
* Format
2021-08-04 21:07:31 +02:00
28c8b00e5c
Minor: fix MSVC shadow warning ( #3376 )
2021-08-04 08:16:02 +02:00
3a7ba3cd29
Add symbolic values to ValueFlow ( #3367 )
2021-07-30 21:29:35 +02:00
00eb71fd49
Remove constexpr -> const simplification ( #3346 )
2021-07-22 07:22:26 +02:00
1be5bb8bbc
Running astyle [ci skip]
2021-07-18 10:01:22 +02:00
59a1c1a9d8
Refactor: Remove variable analyzer ( #3339 )
2021-07-18 07:46:31 +02:00
3b9c399f72
Fix 10338: Hang/Crash in valueflow ( #3328 )
2021-07-07 08:20:32 +02:00
dd178c3ad9
Fix 10314: Possible nullPointerRedundantCheck false positive ( #3298 )
2021-06-19 13:59:48 +02:00
3e78e76fe8
Fix issue 10076: ValueFlow: False positive after address of var is taken 'T t = {{{&var}}};' ( #3283 )
2021-06-03 07:31:46 +02:00
5f0fe1dfe7
Fix another FP with range for macro ( #3276 )
2021-05-26 04:52:55 +02:00
e2d9aaf23b
Fix 10286: false positive: uninitvar ( #3271 )
...
* Fix 10286: false positive: uninitvar
* Remove header
2021-05-23 07:58:19 +02:00
5409fa8afd
Fix disabled valueFlowUninit tests ( #3262 )
2021-05-21 07:28:34 +02:00
f1fff5e904
Fixed #10279 (ValueFlow/TokenList: function pointer dereference and call)
2021-05-20 13:54:17 +02:00
216918756b
Fixed #10276 (FP: (style) Variable '((uint8_t*)(uint16_t)0x1000)[0]' is assigned a value that is never used.)
2021-05-18 20:35:00 +02:00
404b82fc21
unused var; fix todo test cases, redundant assignment of array in loop
2021-05-14 19:07:30 +02:00
d549770b5b
updated extracttests.py. fix syntax errors in test cases.
2021-05-13 20:21:02 +02:00
75311fba0f
Fixed #10218 (FP uninitvar with input from stringstream in for loop)
2021-05-10 19:48:07 +02:00
271acf8aee
Refactoring; Use isUnaryOp instead of simpleMatch
2021-05-10 18:18:21 +02:00
2e2d766e2b
Fixed #6766 (Improve check; struct member is assigned value that is never used)
2021-05-09 20:09:10 +02:00
32b28d568f
Refactoring; Check structured binding in isVariableChanged()
2021-05-08 20:46:46 +02:00
2f984b201a
AST; Fix wrong AST for initializer list
2021-05-04 19:02:29 +02:00
08184f4681
Fixed #10070 (FP warning: Logical disjunction always evaluates to true)
2021-05-04 13:47:09 +02:00
4907c7e3e4
Fix compiler warning, non-static function
2021-04-22 18:40:44 +02:00
691f681d86
Fix issue 10235: Regression: oppositeInnerCondition ( #3223 )
2021-04-19 09:15:03 +02:00
5de58c4ddd
added clang-tidy to CI ( #3218 )
2021-04-18 21:51:47 +02:00
563c9dd9cc
Fix issue 10208: FP: knownConditionTrueFalse in for loop with function that assigns by ref ( #3198 )
2021-04-18 21:42:27 +02:00
5077663684
Fix issue 9979: false positive: containerOutOfBounds with conditional resize ( #3136 )
2021-03-30 14:02:28 +02:00
9de976b243
Fix issue 10194: hang with followAllReferences() ( #3189 )
...
* Decrease depth faster when there is multiple returns
2021-03-30 11:22:56 +02:00
42437277dc
Update Copyright year
2021-03-21 20:58:32 +01:00
fbf63b932e
astyle formatting
...
[ci skip]
2021-02-10 11:42:00 +01:00
0e871c178f
Fix issue 10141: Errors with ref assignment (duplicateValueTenary and knownEmptyContainer) ( #3093 )
2021-02-09 15:27:46 +01:00
a81427f97f
Fix issue 10022: Logical conjunction error between two completely unrelated members ( #3094 )
2021-01-29 10:26:57 +01:00
4e1ff86bb2
use nonneg int for varid and exprid ( #3085 )
2021-01-27 19:49:13 +01:00
00707455be
10110: Fix FP knownConditionTrueFalse ( #3053 )
2021-01-25 17:23:47 +01:00
772b44d11a
Fixed compiler warnings
2021-01-23 18:04:28 +01:00
c860de8565
Fix issue 8143: valueFlowCondition: before and inside while ( #3045 )
2021-01-23 17:52:01 +01:00
a6f4fbae54
Fix issue 2741: False negative: redundant assignment of x to itself (ref = x) ( #3071 )
2021-01-22 11:00:57 +01:00
b2ed372f75
various optimizations ( #3054 )
2021-01-16 19:05:51 +01:00
b1c56d33ac
Fix issue 9133: Invalid iterator; vector::push_back, functions ( #3008 )
2021-01-11 18:47:38 +01:00
678ee00fe9
Infer variables from conditions in valueFlowSubfunction ( #3037 )
2021-01-11 08:00:13 +01:00
50cdb6cbfc
Astyle: sync windows and linux folders ( #3016 )
2021-01-06 17:13:44 +01:00
a95c931da0
Fix issue 8501: false negative: (style) Opposite expression on both sides of ( #3012 )
2021-01-05 12:07:27 +01:00
1d6c0976e5
astyle formatting
...
[ci skip]
2021-01-01 08:56:17 +01:00
ee8d5b972a
checkunusedvar: handle array element change using pointer arithmetic ( #3000 )
2021-01-01 08:06:20 +01:00
bcf6039558
Fixed #10058 (False positive: redundant assignment, there is break)
2020-12-25 09:08:15 +01:00
b8f45a5c65
Replace and fix findBreakScope with findNextTokenFromBreak
2020-12-25 08:43:14 +01:00
8bd783f820
Refactoring; Added findBreakScope and Scope::isLoopScope()
2020-12-24 22:58:31 +01:00
e12a733ee9
Fix issue 10053: False positive: Same value on both branches of ternary operator ( #2962 )
2020-12-23 13:37:28 +01:00
904d52acac
Fix issue 10004: ValueFlow: pointer value, wrongly set known value ( #2931 )
2020-12-03 07:15:31 +01:00
4330a43acb
Fixed #9933 (FP: uninitvar when reading to struct)
2020-11-11 22:47:23 +01:00
7182da5c8e
astyle formatting
2020-11-11 09:17:54 +01:00
bd7e915c20
Add generic reverse valueflow ( #2878 )
2020-11-10 16:00:55 +01:00
79bdd64689
Fix false positive memoryleak ( #2882 )
...
```
int *f() {
int *p = static_cast<int *>(realloc(nullptr, 10));
if (!!(!p)) {
return nullptr;
}
return p;
}
```
would give
```
memleak2.cpp:4:5: error: Memory leak: p [memleak]
return nullptr;
^
```
Because of the additional `!!̀ .
2020-11-10 15:59:51 +01:00
08cef9e815
Typos found by running "codespell" ( #2846 )
2020-10-15 19:24:13 +02:00
7b6d3f8061
Fix issue 9907: False positive: knownEmptyContainer after function call with :: ( #2814 )
2020-09-20 22:37:28 +02:00
c563944fdd
astyle formatting
2020-09-20 20:14:30 +02:00
857722f859
Fix issue 9711: FP knownConditionTrueFalse for variable modified via pointer ( #2813 )
2020-09-20 14:27:09 +02:00
c2e8051196
Fix issue 9904: False positive: duplicateCondition when modifying variable in lambda ( #2811 )
2020-09-18 07:44:26 +02:00
782684a7cc
Fix issue 9530: False positive: Reference to temporary returned when using initializer lists ( #2796 )
2020-09-17 08:33:16 +02:00
94850fec3f
Fix issue 9897: False positive: nullPointerRedundantCheck ( #2805 )
2020-09-14 09:17:29 +02:00
c568e8ea78
Format
2020-09-10 22:59:19 -05:00
71bc79ac28
Fix issue 9889: False positive: Using reference to dangling temporary with function object
2020-09-10 22:58:17 -05:00
f052d32e31
astyle formatting
2020-09-10 08:02:45 +02:00
5033fb4418
Fix issue 9869: False positive: knownEmptyContainer when passed to constructor
2020-09-09 22:23:42 -05:00
bfe53fce04
Fix issue 9878: false positive: multiCondition ( #2787 )
2020-09-09 15:39:36 +02:00
8d7088aa24
Fix issue 9835: False negative: Return reference to temporary with const reference
2020-09-08 18:30:45 -05:00
0c6dc84cbb
astyle formatting
...
[ci skip]
2020-09-07 10:56:02 +02:00
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
cc2bc74084
Track lifetime for lambdas with explicit capture ( #2776 )
2020-09-05 07:56:01 +02:00
32df807b22
Fix issue 9783: wrong lifetime analysis temporary assigned to object ( #2711 )
2020-09-02 07:13:15 +02:00
3e99bff764
Same expression when comparing with zero ( #2762 )
2020-08-31 08:48:48 +02:00
ac846b96d1
New check: Iterating a known empty container ( #2740 )
2020-08-22 09:16:26 +02:00
becdf20310
Fix crash in isSameExpression ( #2748 )
2020-08-22 07:05:21 +02:00
5372e93964
Fixed #9825 (redundantAssignment: Do not warn about volatile data)
2020-08-06 22:18:25 +02:00
25ad22c6af
astyle formatting
...
[ci skip]
2020-07-23 10:09:06 +02:00
df99d8aa0a
Merge pull request #2719 from pfultz2/fp-unreachable-alias
...
Fix issue 9807: False positive: ValueFlow in unreachable code, || lhs is true
2020-07-23 09:52:54 +02:00
f4a6f8ad07
Merge pull request #2720 from pfultz2/crash-type-scope
...
Fix crash when typeScope is missing
2020-07-23 09:31:59 +02:00
3480aba35b
Fix crash when typeScope is missing
2020-07-21 14:09:46 -05:00
dbb410cdae
Merge branch 'main' into condition-in-expr
2020-07-21 13:28:59 -05:00
e2a81a382f
Track reading aliases during valueflow forward
2020-07-19 23:25:35 -05:00
e0be224f4e
Merge pull request #2709 from pfultz2/fp-duplicate-cond-this
...
Fix FP of duplicateCondition when modifying the this variable
2020-07-13 21:14:58 +02:00
519f2a537a
Format
2020-07-13 13:55:45 -05:00
450bdfedf3
Fix FP of duplicateCondition when modifying the this variable
2020-07-13 12:40:01 -05:00
686a6c7862
Fixed compiler warning
2020-07-03 17:54:55 +02:00
f34ff9325a
Fixed testrunner
2020-06-29 21:53:14 +02:00
a0770f05e1
Reuse 'extractForLoopValues' in ValueFlow
2020-06-29 21:01:43 +02:00
d5b6d49d96
Fix issue 9578: false negative: (style) Condition '...' is always false
2020-06-28 15:28:08 -05:00
c42c751d61
ExprEngine; Fixed testing
2020-06-28 13:41:27 +02:00
262f44e76a
astyle formatting
...
[ci skip]
2020-06-26 12:56:56 +02:00
1bef6ed268
Another check for null
2020-06-25 19:12:01 -05:00
263a0364cc
Avoid null pointer dereference
2020-06-25 17:23:42 -05:00
720d882b69
Remove known arg
2020-06-25 17:20:20 -05:00
60c42b17a6
Fix known conditions
2020-06-25 15:46:30 -05:00
1676ad5f45
Fix issue 9710 and 9767: Use AST to get function from argument
2020-06-25 12:54:46 -05:00
c297ed8204
Better handle noreturn or throwing functions in valueflow
...
Teaching cppcheck about `BOOST_THROW_EXCEPTION` and
`boost::throw_exception`, and using noreturn information from libraries
in value flow.
This fixes false positive nullPointerRedundantCheck with the following
code:
```
void throwexception(int * buf)
{
if (!buf)
boost::throw_exception(std::bad_alloc());
*buf = 0;
}
```
2020-06-17 19:06:14 +02:00
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
120c572252
Fixed #9750 (Chained stream operation gives uninitvar error)
2020-06-06 15:24:01 +02:00
eb4754b7d9
Fix issue 9587: False positive: parameter can be declared with const ( #2667 )
2020-05-31 10:10:10 +02:00
5c3474ec5c
Renamed hasReturnFunction to hasNoreturFunction
2020-05-23 07:30:05 +02:00
8301fa8244
Fix issue 8144: valueFlowBeforeCondition: struct ( #2645 )
2020-05-21 08:47:48 +02:00
793ed68029
Refactorization: Moved code from header to source
...
- from utils.h to new utils.cpp
- from token.h to token.cpp
- from valueflow.h to valueflow.cpp
- from errorlogger.h to errorlogger.cpp
2020-05-19 08:35:12 +02:00
08ddd84780
Update copyright year
2020-05-10 11:16:32 +02:00
3e0218299b
Revert "Update copyright year"
...
This reverts commit 6eec6c4bd5
2020-05-10 11:13:05 +02:00
6eec6c4bd5
Update copyright year
2020-05-10 11:11:34 +02:00
54978847c5
Fixed #8916 (FP: followVar does not seem to handle non-const method call properly)
2020-04-18 19:54:55 +02:00
02ae71917a
Fix issue 9536: False positive: Reference to temporary returned when using operator() ( #2582 )
...
* Fix issue 9536: False positive: Reference to temporary returned when using operator()
* Add more test cases
2020-04-01 22:35:41 +02:00
921887a281
Use valueFlowGeneric for valueFlowForwardExpression ( #2537 )
2020-02-16 16:02:22 +01:00
67b495fc50
Fixed #9280 (False positive: unreadVariable on assignment to fixed address volatile struct member)
2020-02-15 17:31:47 +01:00
8c0ad6a1b9
Fixed #9555 (False positive (unreadVariable): struct is assigned a value that is never used)
2020-02-15 16:43:06 +01:00
5f4a900f88
astyle formatting
...
[ci skip]
2020-02-13 17:04:05 +01:00
7368a54629
Add generic valueflow forward analysis ( #2511 )
2020-02-13 16:27:06 +01:00
d858bfc338
Fix issue 9599: False positive: Using object that points to local variable that may be invalid ( #2530 )
...
* Fix issue 9599: False positive: Using object that points to local variable that may be invalid
* Improve tests
* Skip else
2020-02-11 11:45:10 +01:00
8fa7dd0fe0
Fix issue 9595: False positive: Using pointer to temporary doesn't account for const ref extended temporary lifetimes ( #2525 )
2020-02-10 18:01:11 +01:00
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
488bc9997c
Improve isSameExpression for same valued literals with followvar ( #2519 )
...
It allows (for example) cppcheck to detect that the lhs and the rhs are
the same in the following example:
double g()
{
double a = 1e1
return a & 10.0;
}
2020-02-03 09:35:24 +01:00
0e0d88f65e
Refactoring; Avoid template<>
2020-02-01 08:39:58 +01:00
ff9c04dc28
Improve isSameExpression for literals ( #2514 )
...
Improve isSameExpression() for literals with same value but different
representation, for example the following different ways of
representing 9 as double: 9.0, 0.9e1 and 0x1.2p3.
With this change, cppcheck can (for example) correctly detect that the
else if statements are always false in the following example:
void f(double x) {
if (x < 9.0) {}
else if (x < 0x1.2p3) {}
else if (x < 0.9e1) {}
}
2020-02-01 07:22:41 +01:00
01e0a61ebe
Break loops earlier
2020-01-16 18:37:10 +03:00
e1a97c524d
Fix issue 9554: False positive: The address of local variable 'x' is accessed at non-zero index. ( #2470 )
...
* Fix issue 9554: False positive: The address of local variable 'x' is accessed at non-zero index.
* Format
* Remove unnecesary condition check
2020-01-04 11:39:52 +01:00
1e0f8ae9b4
Running astyle [ci skip].
2020-01-04 00:06:27 +01:00
dd05839a7e
Fix false positives in knownConditionTrueFalse when using expressions with const variables ( #2469 )
2020-01-03 19:35:28 +01:00
235ef0a01e
Fixed #9420 (False positive - redundantInitialization)
2019-12-18 19:39:23 +01:00
49d6bfbd7b
Fixed crash in harfbuzz found by daca@home
2019-11-12 18:22:11 +01:00
c75bbbe253
Fix issue 9404: False positive: Either the condition 'if(x)' is redundant or there is possible null pointer dereference: a->x ( #2322 )
...
* Fix issue 9404: False positive: Either the condition 'if(x)' is redundant or there is possible null pointer dereference: a->x
* Use simpleMatch
* Add a test case for the FP
* Check if expression is changed
* Check for no return scope
* Use simpleMatch
2019-11-08 08:11:41 +01:00
Paul Fultz II
Paul Fultz II
Daniel Marjamäki
chrchr-github
Ken-Patrick Lehrmann
orbitcowboy
Oliver Stöneberg
IOBYTE
Rikard Falkeborn
miltolstoy
Armin Müller
PKEuS
Dmitry-Me