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
ae6f611df0
Fix issue 9973: False positive: mismatching iterator container, reference ( #2893 )
2020-11-10 09:38:05 +01:00
bd5fc4b579
Clang import: Fixed variable type for pointers
2020-11-10 09:35:41 +01:00
bd5b2133ab
Clang import: Variable::isReference() should return true for r-value references also
2020-11-09 21:00:48 +01:00
5cfe2e319c
Clang import: Fix Variable::isRValueReference
2020-11-09 20:44:46 +01:00
970beaa79a
Clang import: Fix Variable::isReference
2020-11-09 20:35:00 +01:00
8b52ed590e
Clang import: Better handling of const methods
2020-11-09 14:50:34 +01:00
06909df8f5
Clang import: better handling of ArrayToPointerDecay implicit casts
2020-11-08 19:53:28 +01:00
1c742b7995
Clang import: Handle AccessSpecDecl
2020-11-08 17:02:19 +01:00
1078855029
Clang import: Full name for methods
2020-11-08 10:31:48 +01:00
87323b33bd
Clang import: Fixed problems when handling CXXConstructorDecl
2020-11-08 01:17:34 +01:00
565e67d373
Clang import: Ignore VisibilityAttr
2020-11-07 22:27:11 +01:00
1c2e480449
Proper fix for test-clang-import.py failure
2020-11-07 18:12:47 +01:00
b8e0cdcdb4
Travis: temporary hack to make test-clang-import.py happy
2020-11-07 17:23:56 +01:00
ff17d3e7c6
Clang import: Better handling of scope types
2020-11-07 15:02:36 +01:00
80dee36e68
library: Add new warning: ignoredReturnErrorCode ( #2877 )
...
* library: Add optional "type" attribute to "use-retval"
Added an optional "type" attribute to "use-retval" nodes in the
configuration. When the return type of a function configured with
`<use-retval type="error-code"\>` node does not used, the new style
error "ignoredReturnErrorCode" will be generated.
* Fix and improve patch after the initial review
* Fixed severity level and [[nodiscard]] attribute
* Fix incorrect condition
* Remove redundant condition
2020-11-05 13:35:52 +01:00
f70e8de315
Fix #9567 (Inline suppression of unusedFunction errors not working when using compile database) ( #2870 )
2020-11-04 21:01:48 +01:00
aad29ddb9a
fix an error in Tokenizer::simplifyTypedef() ( #2880 )
2020-11-04 13:32:31 +01:00
a7f6621fc0
cfg: cppunit: Fix FP with compareBoolExpressionWithInt within CPPUNIT_ASSERT_EQUAL ( #2879 )
2020-11-04 07:48:53 +01:00
ae1b9cb14e
SymbolDatabase: Improved function matching in C code
2020-11-04 07:17:17 +01:00
198bbc8a5a
Clang import: Better type handling
2020-11-03 21:37:28 +01:00
eece8ee66b
astyle formatting
2020-11-03 21:08:21 +01:00
8956ecb5fc
Clang import: Fixed data for inline static functions
2020-11-03 17:52:53 +01:00
98946143f6
Fix #9964 (false positive: compareBoolExpressionWithInt with ASSERT_FALSE() and --library=googletest) ( #2876 )
2020-11-03 10:20:25 +01:00
e053066d8b
Clang import: Fixed Variable::mTypeStartToken and Variable::mTypeEndToken for unnamed parameters
2020-11-02 20:58:43 +01:00
488813d00f
added validateCFG and checkcfg targets to CMake / some refactorings ( #2687 )
2020-11-02 20:16:15 +01:00
a2a948a311
Clang Import; Better handling of derived classes
2020-11-01 20:32:42 +01:00
9dc085c3ec
Clang import: Improved handling of overloaded operators
2020-11-01 15:30:51 +01:00
2c34e660b3
Fix #9805 (False positive; Unused function (template)) ( #2871 )
...
* Add test
* Ignore templates with trailing return type as well
2020-11-01 15:10:02 +01:00
26e6eed189
Revert "AST: Adjust AST for variable declaration 'char var[] = str;'"
...
This reverts commit 376860f796
2020-11-01 11:41:41 +01:00
4094274723
TestClangImport: Fix tests
2020-11-01 11:33:01 +01:00
5aab1f9692
Clang import: Improved handling of structs
2020-11-01 09:12:58 +01:00
226e996e46
Clang import: Improved handling of empty structs/classes
2020-11-01 08:44:38 +01:00
597a6eb99c
Clang import: Fix Variable::mTypeStartToken for const argument
2020-10-31 17:43:36 +01:00
376860f796
AST: Adjust AST for variable declaration 'char var[] = str;'
2020-10-31 17:05:42 +01:00
bc5ec38149
Fix #9806 (False positive: template function can be static) ( #2868 )
...
* Include detecting variadic template functions by matching against endTok instead of startTok.
* Add argument count check for variadic (template) member functions.
2020-10-31 10:02:15 +01:00
a623168942
fix passedByValueError on enums ( #2869 )
2020-10-30 18:32:35 +01:00
6d0b78433b
astyle formatting
2020-10-29 21:43:56 +01:00
e044d6e219
Clang import: fixed AST for 'return new S()'
2020-10-29 21:43:35 +01:00
9ed4dc4199
Clang Import: Fix AST for 'new S;'
2020-10-29 20:52:09 +01:00
de19dc9e3e
Fix #8327 (Memleak with mmap return value check) ( #2864 )
...
Also fix a broken test case related to checking the return value -1
where socket was not defined in the library used in the tests.
This was tested running test-my-pr with 500 packages. The difference was
six fewer FPs.
2020-10-29 13:17:33 +01:00
16f4f198eb
Clang import: handle DefaultStmt
2020-10-29 09:48:35 +01:00
4eb829933e
Tokenizer: Fixed unwanted unknownMacro warning for decltype
2020-10-27 09:08:13 +01:00
34c8334882
Fixed #9737 (False positive: unreadVariable)
2020-10-25 20:32:45 +01:00
05514950af
astyle formatting
...
[ci skip]
2020-10-25 07:12:30 +01:00
d55874ec37
checkunusedvar: handle initialization list ( #2836 )
2020-10-25 07:11:45 +01:00
3876b601d5
Fixed #9476 (Tokenizer: report unknown macro)
2020-10-24 22:12:10 +02:00
d7a8e25d92
Fix #9647 : Set correct enum value ( #2856 )
...
* Tokenize: Set varId for variables in enum
Set varIds in enum values. It was previously disabled in 5119ae84b8Fix #9647 : Value of enums with variables as init values
C++ allows enum values to be set using constexprs, which cppcheck did
not handle before. To solve this, add a new pass to valueflow to update
enum values after global consts have been processed. In order to do so,
I moved all settings of enum values to valueflow. After setting the enum
values, we need another call to valueFlowNumber() to actually set users
of the enums.
There is still room for improvements, since each pass of
valueFlowGlobalConstVar() and valueFlowEnumValue() only sets variables
that are possible to set directly, and not if setting the value of a
variable allows us to set the value of another. For example
constexpr int a = 5;
constexpr int b = a + 5;
enum E { X = a };
constexpr E e = X;
Here both b and e will not have their values set, even though cppcheck
should be possible to figure out their values. That's for another PR
though.
This was tested by running test-my-pr.py with 500 packages. The only
difference was one error message in fairy-stockfish_11.1, where cppcheck
now printed the correct size of an array instead of 2147483648 which I
assume is some kind of default value. In that package, using a constexpr
when setting enum values is common, but as mentioned, there was no
change in the number of warnings.
2020-10-22 07:45:04 +02:00
64638d82bb
Fix issue 9945: FP: containerOutOfBounds ( #2845 )
2020-10-22 07:41:52 +02:00
47914b9960
Crash: Add regression test
2020-10-22 07:40:06 +02:00
e4a54a24db
Fix regression in CheckCondition ( #2854 )
...
Introduced by e2a81a382f
2020-10-20 07:56:41 +02:00
2624d791e6
Symboldatabase: Don't set unknown enum values ( #2852 )
...
Previously, if an enum value was set to a value unknown to cppcheck, the
next enum value would erroneously be set to the last set value plus one
(or zero, if no enum value had been set before). This partially fixes
Trac ticket #9647 , in the sense that it no longer sets wrong values for
these enum values. Further improvements to this would be to set the
correct values instead. It also fixes the false positive mentioned in the
comments in the ticket.
2020-10-18 20:41:36 +02:00
33739d23aa
Fix #9941 : Return value type of library functions returning unsigned ( #2848 )
...
Fix return value types of library functions returning unsigned.
Previously, the valueType of auto x = f() would be signed even if f()
was specified to return an unsigned type.
This fixes #9941 , which is a regression in cppcheck 2.2 compared to 2.1.
The regression was introduced in 32df807b22
2020-10-16 07:56:31 +02:00
f1ce5a9101
Fixed #9929 (False positive: suspicious semicolon after macro)
2020-10-09 20:34:20 +02:00
047c3ed6ba
Fix issue 9935: FP: knownConditionTrueFalse value flow doesn't account for virtual functions ( #2839 )
2020-10-09 17:21:27 +02:00
586ddf74f1
Clang import; fixed ast for function call with multiple arguments
2020-10-09 07:54:16 +02:00
65721dd7a9
Bug hunting; Better handling of constant
2020-10-08 17:24:35 +02:00
40faca7dd9
Fix TestClangImport
2020-10-06 23:19:32 +02:00
64608f4e95
clang import; fix symbol database for 'struct Fred { int a; }; int b; void f(int c, int d) { int e; }'
2020-10-06 19:06:10 +02:00
372161c89b
Fix issue 9939: False positive: Reference to temporary returned (static variable) ( #2840 )
2020-10-06 09:16:54 +02:00
67cc1776d5
Clang import: fixed return type
2020-10-04 20:02:19 +02:00
e3ab688597
Clang import: Fix syntax tree for 'case 1'
2020-10-04 19:33:28 +02:00
c3de128a5f
Testing backwards compatible inline suppression
2020-10-04 16:42:09 +02:00
c3517924d0
Clang import testing: Compare AST
2020-10-04 11:27:31 +02:00
b052843655
exprengine: Use and tweak ExprEngine::ArrayValue::MAXSIZE
2020-10-04 11:21:13 +02:00
828a5e2326
Fix issue 9930: valueFlowLifetime hang
2020-10-03 11:01:53 +02:00
8d20d8afb5
Update Copyright year
2020-10-03 09:15:56 +02:00
27fbe28804
Try to make Travis happy
2020-10-02 21:24:30 +02:00
aa055fe430
try to make test/cli happy
2020-10-02 20:30:28 +02:00
6de91d6386
Fixed #9707 (False positive: unreadVariable, union)
2020-10-02 20:22:22 +02:00
ea3a9d658a
Suppressions: Add special case for backwards compatibility. suppression comment after a {.
2020-10-02 18:56:26 +02:00
1251d35ba4
Fix SymbolDatabase for 'extern const char ( * x [ 256 ] ) ;'
2020-10-02 08:25:43 +02:00
da6f10e369
Astyle formatting code [ci skip]
2020-10-01 08:33:16 +02:00
1548bf2267
Fix googletest.cfg macros ASSERT_THROW and EXPECT_THROW to avoid syntax errors
2020-09-30 18:45:04 +02:00
63917bc3c3
Better fix for c4dd8536c1
2020-09-30 15:44:06 +02:00
c4dd8536c1
Fixed make checkcfg
2020-09-30 12:36:31 +02:00
fe2717fa37
Fixed testrunner
2020-09-29 17:43:53 +02:00
bf3833dad5
Avoid constStatement false positives for 'foo() || x=5'. Found in daca@home.
2020-09-29 13:35:39 +02:00
f956dee58a
Tokenizer: Fixed simplification of parentheses in expression 'a=(b,c);'
2020-09-29 12:06:30 +02:00
31c800e19e
Fixed false positive: suspicious operator ',' seen in daca@home
2020-09-29 11:32:48 +02:00
ad9b2741cd
varid: set varid for 'extern const char (*x[256]);'. This is a partial fix for #9922
2020-09-29 10:53:20 +02:00
d901edd4af
Avoid clarifyCalculation warning for 'x % 16 ? 1 : 0' expression. Fixes FP seen in daca@home. It seems likely that the order is understood otherwise the ternary calculation could easily be simplified away.
2020-09-29 08:39:21 +02:00
e32ccb591b
Fixed clarifyCalculation fp for 'a % b ? "a" : "b"'. seen in daca@home.
2020-09-29 08:29:23 +02:00
bf236e91d7
Fixed #9918 (False positive: autoVariable pointer is NULLed later)
2020-09-28 22:48:57 +02:00
8395522390
Fixed #9919 (False positive: clarifyCalculation for code: flags & ZRL_EOL_NUL ? '\0' : '\n')
2020-09-28 19:18:34 +02:00
fa42d8c49c
Fixed #9920 (Tokenizer: The keyword is not replaced, leads to false positive)
2020-09-28 16:35:50 +02:00
2748201d73
Fixed #9782 (Segmentation fault due to broken AST)
2020-09-27 20:41:09 +02:00
ba84303501
Fixed #9680 (false positive: style: Variable 'x' is assigned a value that is never used with smart pointers)
2020-09-27 19:15:15 +02:00
7bb82c5df7
Fixed #9901 (False positive: variable is assigned value that is not used 'if (--N == 0)')
2020-09-26 22:13:05 +02:00
0ec77879ea
Fix crash in createAST when checking wiggle in daca@home
2020-09-26 19:22:24 +02:00
5578b09452
More fixing for #9914 . New warning id and warning message when variable expression is explicitly hidden.
2020-09-26 13:49:47 +02:00
05b0a0f970
Make duplicateAssignExpression warnings inconclusive for 'x&&false' etc. ( #9914 )
2020-09-26 10:50:58 +02:00
887b40e08b
Fix issue 9916: False positive: duplicateAssignExpression when it's checked if variables have initial value later ( #2825 )
2020-09-26 10:31:40 +02:00
5856fef83b
Fixed #9914 (False positive: knownArgument for 'x && false')
2020-09-25 20:27:16 +02:00
5b78c64420
Fixed testrunner
2020-09-25 20:04:07 +02:00
485153c930
Limit variableScope check. Do not check C code if all local variables are declared at function level.
2020-09-25 08:34:47 +02:00
093ff58f5f
Fix crash in cbmc detected with daca@home
2020-09-24 20:48:26 +02:00
801cc8d331
Fixed knownArgument false positive for pointer
2020-09-24 19:48:20 +02:00
c08e1a9a94
Fix knownArgument false positive when sizeof is used
2020-09-24 19:43:39 +02:00
514b7f4da4
Fixed #9906 (False positive: constParameter (function pointer))
2020-09-23 22:10:47 +02:00
dae37f1c9f
disabled precompiled headers in CMake as they currently do not emit any compiler warnings / adjusted check for precompiled header ( #2820 )
2020-09-23 07:51:21 +02:00
d9eacaecbb
Fix issue 9842: ValueFlow: wrong handling of ?, seems to think that the whole expression is a condition ( #2821 )
2020-09-23 07:45:03 +02:00
107ee57e7a
Fixed #9909 (False positive: knownArgument for calculation 'self->maxsize * sizeof(intptr_t)')
2020-09-21 20:02:55 +02:00
7189b303ae
fixed some modernize-loop-convert clang-tidy warnings ( #2815 )
2020-09-21 19:30:47 +02:00
7b6d3f8061
Fix issue 9907: False positive: knownEmptyContainer after function call with :: ( #2814 )
2020-09-20 22:37:28 +02:00
730b95331e
Fixed #9905 (False positive: known argument 'header.length()')
2020-09-20 20:17:10 +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
e5d0ffdbe7
Fix issue 9900: False positive: Returning lambda that captures local variable 'x' that will be invalid when returning. ( #2809 )
2020-09-17 08:33:52 +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
11c99d7387
Fix issue 9880: False positive: danglingLifetime ( #2810 )
2020-09-17 07:23:38 +02:00
ebbff08932
Fix issue 9899: False positive: Non-local variable will use object that points to local variable ( #2808 )
2020-09-15 07:11:52 +02:00
3459f0da32
Fixed #9812 (False positive; syntax error 'using array_p = const array_t *;')
2020-09-14 21:59:58 +02:00
53a0760fdf
Improve ast generation for templated function parameters ( #2803 )
2020-09-14 18:44:50 +02:00
a42976d656
Fix issue 9898: false positive: knownConditionTrueFalse ( #2806 )
2020-09-14 18:43:11 +02:00
4dd85cfbe0
Merge pull request #2802 from rikardfalkeborn/9228-fix-fn-with-realloc-and-null-assignment
...
Improve memleakOnRealloc with assignment to NULL
2020-09-14 11:04:29 +02:00
94850fec3f
Fix issue 9897: False positive: nullPointerRedundantCheck ( #2805 )
2020-09-14 09:17:29 +02:00
bb7164171c
Fix issue 9894: ValueFlow: wrong known value below while with assignment ( #2804 )
...
* Fix issue 9894: ValueFlow: wrong known value below while with assignment
2020-09-14 08:03:25 +02:00
791051ced0
Fix #9228 (FN common realloc mistake with assignment of NULL)
...
Do not match for assignments with NULL.
2020-09-13 21:49:49 +02:00
da8ad9ce19
memleakOnRealloc: Don't warn if pointer is NULL in condition
2020-09-12 18:48:23 +02:00
be900873cc
FIx issue 9895: ValueFlow: Wrong known value below function call with reference parameter
2020-09-11 16:03:57 -05:00
e03a8e1dc1
Fixed #9892 (Crash: endless recursion in Token::typeDecl for expression 'auto combo = widget->combo = new Combo{};')
2020-09-11 21:29:48 +02:00
61145cf878
test/cli/test-inline-suppress.py: better testing
2020-09-11 18:29:42 +02:00
600538a325
Merge pull request #2793 from Ken-Patrick/mixedoperators
...
Fix false positives with condition with || and &&
2020-09-11 10:11:31 +02:00
d46b9cec5f
Merge pull request #2795 from pfultz2/fp-lifetime-temp-function-obj
...
Fix issue 9889: False positive: Using reference to dangling temporary with function object
2020-09-11 09:05:43 +02:00
7e02789d3f
Merge pull request #2794 from pfultz2/lifetime-temp-ref-move
...
Fix issue 9888: False positive: Using reference to dangling temporary with std::move
2020-09-11 07:20:32 +02:00
ac66f67bad
Merge pull request #2790 from pfultz2/forward-analyze-accumulate-actions
...
Fix issue 9833: False positive: Division by zero when using pointer to struct
2020-09-11 07:17:10 +02:00
71bc79ac28
Fix issue 9889: False positive: Using reference to dangling temporary with function object
2020-09-10 22:58:17 -05:00
b26c581556
Fix issue 9888: False positive: Using reference to dangling temporary with std::move
2020-09-10 22:38:31 -05:00
4d1b3e06c7
Fix FPs
2020-09-10 17:06:49 -05:00
a114bf0293
Fix false positives with condition with || and &&
...
The value of something in the middle of a condition with mixed || and &&
gives no information on which branch will be taken.
For instance with:
```
int f(int a, int b, bool x) {\n"
if (a == 1 && (!(b == 2 && x))) {
} else {
if (x) {
}
}
return 0;
}
```
We can enter the if part whether x is true or false, and similarly,
enter the else part whether x is true or false. Same thing with the
value of b.
This fixes the following false positive with above code:
```
:4:13: style: Condition 'x' is always true [knownConditionTrueFalse]
if (x) {
^
:2:33: note: Assuming that condition 'x' is not redundant
if (a == 6 && (!(b == 21 && x))) {
^
```
2020-09-10 23:27:39 +02:00
2b12ef653d
Merge pull request #2792 from IOBYTE/main
...
fix #9886 (Hang in TemplateSimplifier (gcc/gcc/testsuite/g++.dg/cpp0x…
2020-09-10 21:47:44 +02:00
51f5f2c7d0
Fix inline suppressions problem
2020-09-10 21:46:15 +02:00
a52ce7379a
fix #9886 (Hang in TemplateSimplifier (gcc/gcc/testsuite/g++.dg/cpp0x/decltype34.C))
2020-09-10 14:47:59 -04:00
5033fb4418
Fix issue 9869: False positive: knownEmptyContainer when passed to constructor
2020-09-09 22:23:42 -05:00
75b955b9c6
Fix issue 9833: False positive: Division by zero when using pointer to struct
2020-09-09 21:29:26 -05:00
34d65e25d6
Merge branch 'main' into lifetime-subfunction
2020-09-09 12:02:02 -05:00
7c8c0ef3a2
Bug hunting: Avoid uninit struct member false positives
2020-09-09 18:26:04 +02:00
f95a53b0ca
Fixed #9821 (False positive: Delegating constructor and initialization list)
2020-09-09 18:04:21 +02:00
bfe53fce04
Fix issue 9878: false positive: multiCondition ( #2787 )
2020-09-09 15:39:36 +02:00
b1401c6536
Merge pull request #2789 from pfultz2/smart-ptr-constructor
...
Fix issue 9496: False negative: Dereferencing returned smart null-pointer
2020-09-09 08:16:30 +02:00
1c37423f1b
Merge pull request #2788 from pfultz2/lifetime-dangling-temp-reference
...
Fix issue 9835: False negative: Return reference to temporary with const reference
2020-09-09 08:01:22 +02:00
965fea370f
Formatting
2020-09-08 21:55:53 -05:00
382408f59e
Fix issue 9496: False negative: Dereferencing returned smart null-pointer
2020-09-08 21:54:38 -05:00
8d7088aa24
Fix issue 9835: False negative: Return reference to temporary with const reference
2020-09-08 18:30:45 -05:00
5376decbe7
Merge pull request #2783 from pfultz2/out-of-bounds-at-index
2020-09-08 20:30:31 +02:00
8c425790f4
Merge branch 'main' into lifetime-subfunction
2020-09-08 13:18:01 -05:00
18e99176e5
Fix issue 9883: endless recursion in getLifetimeTokens ( #2786 )
2020-09-08 20:14:54 +02:00
5099ca3c8b
Fix issue 9882: segfault in ForwardTraversal ( #2785 )
2020-09-08 20:14:10 +02:00
Paul Fultz II
Ken-Patrick Lehrmann
Daniel Marjamäki
Georgy Komarov
Jesse Boswell
uhziel
Rikard Falkeborn
Oliver Stöneberg
vilarion
shaneasd
miltolstoy
orbitcowboy
Robert Reif