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13022 Commits

Author SHA1 Message Date
Daniel Marjamäki
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
Daniel Marjamäki
0aebc32ae0 Uninitialized variables; Fixed false positive for 'cin >> x[0]' 2021-05-18 20:13:27 +02:00
Paul Fultz II
4b11bb4ad3
10278: ValueFlow: Wrong known value, sign conversion (#3260) 2021-05-18 07:28:45 +02:00
Daniel Marjamäki
84f8b7b50a Uninitialized variables; Fixed error message, use Token::errorString 2021-05-17 16:51:30 +02:00
Daniel Marjamäki
bde8b4316e Uninitialized variables; Fixed FP in range based for loop 2021-05-17 13:31:16 +02:00
Daniel Marjamäki
4322311482 Uninitialized variables; Fixed struct member access FP 2021-05-17 11:50:31 +02:00
Daniel Marjamäki
c78a1dbbaf Fixed self-check warning, shadow variable 2021-05-17 11:35:04 +02:00
Daniel Marjamäki
b115e4a932 Uninitialized variables; Fixed false positive in member assignment 2021-05-17 10:31:02 +02:00
Daniel Marjamäki
16ce0f1dbf Uninitialized variables; Clarify warnings, bailout for binary & to avoid FPs 2021-05-17 09:22:19 +02:00
Daniel Marjamäki
224492b0b5 Uninitalialized variables; Avoid FP for void cast 2021-05-17 05:59:28 +02:00
Daniel Marjamäki
30ef6db24c CI; Fixed self check 2021-05-16 23:39:10 +02:00
Daniel Marjamäki
e034fa8a6e UninitVar: Rewrite CheckUninitVar::isVariableUsage(), use AST primarily 2021-05-16 22:27:04 +02:00
Daniel Marjamäki
2c155a7a78 Uninitialized variables; use AST 2021-05-16 11:58:51 +02:00
Daniel Marjamäki
e73057eb44 Fixed #10275 (ValueFlow: condition 'x>=0 && x < 10') 2021-05-16 10:34:22 +02:00
Daniel Marjamäki
8476900a62 checkuninitvar; refactor code a bit 2021-05-16 08:38:51 +02:00
Daniel Marjamäki
b8314289c6 testbufferoverrun; fixed TODO test cases for pointer arithmetic overflows 2021-05-15 20:32:46 +02:00
Daniel Marjamäki
899b88754f uninitialized variables; fix false positive in loop 2021-05-15 11:16:47 +02:00
Paul Fultz II
eb96e4980e
Fix issue 10268: ValueFlow; Wrong value in for loop (#3257) 2021-05-15 08:39:20 +02:00
Daniel Marjamäki
c67e618627 self check; Fix shadow variable 2021-05-14 23:05:27 +02:00
Daniel Marjamäki
809c70b9c3 uninitialized variables; fix FP in for loop 2021-05-14 21:36:51 +02:00
Daniel Marjamäki
404b82fc21 unused var; fix todo test cases, redundant assignment of array in loop 2021-05-14 19:07:30 +02:00
Daniel Marjamäki
c29997b117 uninitvar: fixed TODO assertion 2021-05-14 11:54:18 +02:00
Daniel Marjamäki
45eb9f82a0 Fix CI; Cppcheck find some more unusedAllocatedMemory violations in test/cfg/.. 2021-05-13 23:08:58 +02:00
Daniel Marjamäki
d549770b5b updated extracttests.py. fix syntax errors in test cases. 2021-05-13 20:21:02 +02:00
Daniel Marjamäki
7ba9e37296 unhandled char literal; changed severity to 'portability'. hopefully there will not be warnings for standard character literals. 2021-05-13 13:51:53 +02:00
Daniel Marjamäki
fca7a270bf daca@home; show unhandled chars diagnostics 2021-05-13 13:44:32 +02:00
Daniel Marjamäki
22ab9ccd7f Fixed #10273 (False negative; Uninitialized variable in for loop) 2021-05-11 20:35:15 +02:00
Daniel Marjamäki
75311fba0f Fixed #10218 (FP uninitvar with input from stringstream in for loop) 2021-05-10 19:48:07 +02:00
Daniel Marjamäki
db7be3e91b Fixed #9810 (Improve check: uninitialized struct member not detected) 2021-05-10 19:24:03 +02:00
Daniel Marjamäki
c37b8ea55c Fixed #8299 (false negative: uninitialized struct member) 2021-05-10 18:38:44 +02:00
Daniel Marjamäki
271acf8aee Refactoring; Use isUnaryOp instead of simpleMatch 2021-05-10 18:18:21 +02:00
Daniel Marjamäki
2c24af02c8 Fixed self-check error. Use Token::simpleMatch for simple pattern. 2021-05-09 23:02:35 +02:00
Daniel Marjamäki
2e2d766e2b Fixed #6766 (Improve check; struct member is assigned value that is never used) 2021-05-09 20:09:10 +02:00
Daniel Marjamäki
3b37c14b3c Parser; Partial C++20 support, explicit(bool) 2021-05-09 18:47:02 +02:00
Daniel Marjamäki
32b28d568f Refactoring; Check structured binding in isVariableChanged() 2021-05-08 20:46:46 +02:00
Daniel Marjamäki
895a96f9dd Tokenizer::findGarbageCode: detect wrong struct declaration 2021-05-08 15:28:21 +02:00
Daniel Marjamäki
a197e94573 Fixed #10266 (False positive; parameter can be const) 2021-05-08 13:40:52 +02:00
Daniel Marjamäki
abb4200316 Fixed #10196 ("Unhandled char constant 'x'" with non-standard escape character) 2021-05-08 12:54:18 +02:00
keinflue
0a84ad874c
Fix case ranges with single quotes and escape sequences (#3248) 2021-05-08 11:24:07 +02:00
keinflue
bfa26b5a72
Fix FP leakNoVarFunctionCall with passthrough returns (#3249) 2021-05-08 10:26:10 +02:00
Daniel Marjamäki
be95e2bf21 Fixed #10271 (AST; Token::astOperand2() cyclic dependency in static_assert) 2021-05-07 13:19:28 +02:00
keinflue
c9a9b56e0e
Increase max AST depth and throw error if exceeded (#3250) 
Co-authored-by: keinflue <>
 2021-05-06 11:43:15 +02:00
Daniel Marjamäki
b8de69489d Fixed #10079 (AST: switch does not have two operands) 2021-05-04 20:15:57 +02:00
Daniel Marjamäki
2f984b201a AST; Fix wrong AST for initializer list 2021-05-04 19:02:29 +02:00
Daniel Marjamäki
08184f4681 Fixed #10070 (FP warning: Logical disjunction always evaluates to true) 2021-05-04 13:47:09 +02:00
dummyunit
661ebd3a96
Fix AST for brace initialization after decltype() (#3245) 
Currently sub-expressions like decltype(x){} break AST creation for
subsequent tokens in the whole expression. In some cases this triggers
validation checks in validateAst() and analysis on the file stops.
For example, code like this:
    int x = decltype(0){} ? 0 : 1;
currently produces internalAstError.

To fix the issue iscpp11init_impl() was changed to recognize { preceded
by decltype(expr) as a start of C++11 brace initialization expression.
 2021-05-03 21:40:49 +02:00
Daniel Marjamäki
82636d4f07 AST: Fixed ast for a:🅱️:c.. 2021-05-03 20:33:03 +02:00
Daniel Marjamäki
70ab30e3c6 AST; Fixed problem with initializer list and cleanup of compileScope 2021-05-03 20:22:08 +02:00
Daniel Marjamäki
cb8ee825fd AST; remove special handling of semicolon in if|switch as Tokenizer will simplify the code instead 2021-05-03 10:43:14 +02:00
dummyunit
ac505afe69
Fixed #9729 (AST broken: lambda with noexcept keyword) (#3243) 
The previous fix for the issue (43b58dbc9e) didn't seem to actually fix
it because it added a check for noexcept without a condition, but when
AST is created noexcept always has a condition due to simplification
from "noexcept" to "noexcept(true)" in Tokenizer::simplifyKeyword().
The issue from the ticket couldn't be reproduced neither on 43b58dbc9e
nor on the previous commit, so it is hard to tell whether the fix was
effective or not.

The issue appeared again after a refactoring of AST code in ac67049661.
Test added with the original fix was unable to catch that because it
used testAst() helper function which skips most simplification steps.

To fix the issue we now check for noexcept with a condition and add a
proper regression test that:
1. Uses tokenizeAndStringify() to ensure that all simplifications are
   performed before AST is created.
2. Parses the code snippet from the ticket, as having "if (cond)" is
   crucial to reproducing the original issue (internalAstError).

Also fix AST creation for lambdas that have both constexpr and mutable
keywords.
 2021-05-02 21:34:28 +02:00