Commit Graph

4478 Commits

Author SHA1 Message Date
Daniel Marjamäki f69b1f426e Preprocessor: Improved handling of expressions in simplifyVarMap. Ticket: #4516 2013-01-26 16:21:33 +01:00
Daniel Marjamäki 641e7cba28 Fixed #4516 (Preprocessor: wrong #if evaluation) 2013-01-26 12:37:46 +01:00
Daniel Marjamäki 8738223e82 Fixed #4512 (Improve check: Uninitialized variable not detected) 2013-01-26 08:16:53 +01:00
Daniel Marjamäki ae43b12bf1 Fixed #4511 (False positive: uninitialized struct member) 2013-01-25 18:20:57 +01:00
Robert Reif 3b08b410a2 Symbol database: Improved function lookup (a.b.f()). Ticket: #4494 2013-01-25 06:49:04 +01:00
Daniel Marjamäki c235737b6c Uninitialized variables: improved checking of loops 2013-01-24 19:41:15 +01:00
Erik Lax c2608108dd Fixed #3928 (Tokenizer: Wrong simplification of inner if-else 'if (a) while (b) if (c) x; else y;') 2013-01-24 16:53:20 +01:00
Robert Reif cecd726b11 Symbol database: Improved function lookup for foo.f(). Ticket #4494 2013-01-23 16:53:55 +01:00
Daniel Marjamäki f86e83d813 Memory leaks: Improved handling of allocation functions that contains ::. Ticket: #4494 2013-01-22 21:33:39 +01:00
Erik Lax 444f80c4bb Fixed #4505 2013-01-22 13:49:54 +01:00
Robert Reif ddb604d1a5 Symbol database: function lookup when :: is used. Ticket #4494 2013-01-22 06:55:25 +01:00
Frank Zingsheim 096cb1bd88 Fixed #3686: false positive: Possible null pointer dereference (inconclusive) 2013-01-21 19:38:59 +01:00
Daniel Marjamäki bfafd51ca1 Fixed #4470 (New check: redundant bitand 'x&=1; x&=2;' can be simplified to 'x=0;') 2013-01-21 19:59:34 +01:00
Daniel Marjamäki c478a3214f Uninitialized variables: Added TODO test case (while) 2013-01-20 18:40:24 +01:00
Daniel Marjamäki 76534ccd1b Uninitialized struct member: Fixed false negatives for return statements 2013-01-20 17:54:32 +01:00
Daniel Marjamäki d33341a21a Fixed #4502 (Preprocessor: Treat SystemInclude and UserInclude the same) 2013-01-20 14:42:04 +01:00
Daniel Marjamäki e63f2c3b5b Uninitialized struct member: Avoid false positive when struct member is passed by address 2013-01-20 13:12:40 +01:00
Daniel Marjamäki 67c9720299 Tokenizer: fixed simplification of static constants 2013-01-19 21:14:15 +01:00
Daniel Marjamäki bff6ed7af0 Fixed #3500 (false negative: (error) Returning pointer to local array variable) 2013-01-19 13:39:23 +01:00
Daniel Marjamäki f1c195e652 Fixed #3506 (false negative: not initialized variables ( struct timeval)) 2013-01-19 12:48:56 +01:00
Daniel Marjamäki 3cf0e88fbe Uninitialized struct members: Improved checking when struct member is used in expression 2013-01-19 10:09:58 +01:00
Zachary Blair 8647e4c0d0 Fixed a false positive in #4109 (if (c == 1) c == 0; Isn't picked up) 2013-01-18 16:34:15 -08:00
Daniel Marjamäki 7c615f0f12 Fixed #4497 (False positive: uninitialized struct (writing/reading member)) 2013-01-18 21:26:28 +01:00
Zachary Blair a1cbed3df8 Fixed #4109 (if (c == 1) c == 0; Isn't picked up) 2013-01-17 23:03:04 -08:00
Daniel Marjamäki 77e9f65e6b Uninitialized struct members: Fixed unit test 2013-01-17 23:55:13 +01:00
Daniel Marjamäki 2c6b383822 Uninitialized member variables: Improvements 2013-01-17 21:04:22 +01:00
Daniel Marjamäki 93fb6b0c6a Fixed #4493 (FP: uninit struct member (struct is assigned)) 2013-01-17 17:01:04 +01:00
Daniel Marjamäki 5773e69ab1 Uninitialized variables: Add experimental checking of struct members 2013-01-16 20:28:29 +01:00
Daniel Marjamäki 4cd8c7c608 Merge pull request #128 from acmyo/master
Fix compiler warnings and comment/string typos
2013-01-16 08:00:59 -08:00
Daniel Marjamäki 0fb2d309a6 Fixed #4490 (False positive: unused function (function pointer is taken in global scope)) 2013-01-16 16:52:57 +01:00
Andrew C. Martin 4a73c93750 Fix compiler warnings and comment/string typos
- fix g++ warning:

> lib/checkother.cpp:3779: warning: comparison between signed and unsigned integer expressions

 - fix suncc warning (see [everything2](http://everything2.com/title/C%252B%252B%253A+static+extern+%2522C%2522)):

> "lib/checkmemoryleak.cpp", line 578: Warning (Anachronism): Formal argument __compar of type extern "C" int(*)(const void*,const void*) in call to bsearch(const void*, const void*, unsigned long, unsigned long, extern "C" int(*)(const void*,const void*)) is being passed int(*)(const void*,const void*).

- prefer empty() / isEmpty() over "size() > 0" (cases not caught by stlSize)

- fix word misspellings (mostly comments, a few output lines)

  - Parenthesis => Parentheses (both variations were used in the codebase)

  - fix typo and wording ("never alwayw") in gui/test/data/benchmark/simple.cpp's CheckOther::unsignedPositive():

```
-  "An unsigned variable will never alwayw be positive so it is either pointless or "
+  "An unsigned variable can't be negative so it is either pointless or "
```
2013-01-16 07:37:07 -07:00
Daniel Marjamäki 27eedcd0a3 Merge pull request #127 from rofl0r/master
sanitize the descriptive text displayed for "varFuncNullUB"
2013-01-15 21:34:03 -08:00
rofl0r 623e30d677 fix unit test for varFuncNullUB 2013-01-15 20:45:53 +01:00
Daniel Marjamäki 2fa35a6f8d Fixed #4429 (unused functions: handle function declarations better) 2013-01-15 17:00:28 +01:00
Daniel Marjamäki d46789ee4a varFuncNullUB: fixed false positive when non-variadic argument is NULL (#4482) 2013-01-14 06:44:52 +01:00
Erik Lax 723d95597b Fixed #4481 (Simplify %str% [ %num% ]) 2013-01-13 20:52:38 +01:00
Daniel Marjamäki f0ce26a2aa Preprocessor: Let the Tokenizer handle NULL 2013-01-13 15:01:31 +01:00
Daniel Marjamäki 2e56928834 Fixed #4482 (add test for UB due to usage of NULL in variadic functions) 2013-01-13 12:02:10 +01:00
Daniel Marjamäki 97b928b2bc Fixed #4476 (Tokenizer: wrong simplification of static anonymous-type struct array declaration) 2013-01-10 18:24:01 +01:00
Zachary Blair 309edbbdc5 Fixed #4389 (False positive: Possible null pointer dereference if the default parameter value is used) 2013-01-09 23:22:54 -08:00
Edoardo Prezioso 6236e1dc38 Token::Match: removed harmless special code for initial '!!foo' patterns. 2013-01-09 20:13:33 +01:00
Thomas Jarosch 7dd07d8e77 Properly implement %op% for Token::multiCompare
Use tok->isOp() instead of doing it "manually".

This fixes false positives for the C++ template case since
the brackets in "template < something >" are not comparison operators.

Profiling showed using tok->isOp() is actually faster than before (-O2).
2013-01-09 17:05:53 +01:00
Thomas Jarosch 29c66dd9bc Add another TODO test case for Token::Match 2013-01-08 00:19:12 +01:00
Thomas Jarosch 818362f496 Add TODO test case for a bug in Token::Match multicompare
The result of the %op% operator is wrong in the multicompare
case for C++ templates. Detected by comparing the output
of the compiled matches with the on-the-fly match parser.
2013-01-07 23:47:20 +01:00
Frank Zingsheim 498d03458f Fixed #4385: lock_guard RAII throws unreadVariable 2013-01-07 20:28:43 +01:00
Daniel Marjamäki eebfea2b23 Fixed #4381 (Inline type declaration on statics causes warning) 2013-01-07 19:20:15 +01:00
Zachary Blair f3c3b7c910 Fixed #4405 (False positive: Memory in freed twice (throw)) 2013-01-05 19:02:19 -08:00
PKEuS f5ebbff0a3 Fixed #4460: Ensure that memset/memcpy is called on a pointer to a class instance. 2013-01-05 12:27:55 -08:00
Edoardo Prezioso 4c73c29cdd Revert partially the previous commit:
The two formulas are true iff 2n = 2 <=> n = 1.
2013-01-05 17:31:08 +01:00
Edoardo Prezioso 1c0c0471df Simplify some generalized math formulas:
Now the 'sin^2+cos^2=1' and the 'sinh^2-cosh^2=-1' code can handle, for example: sin^4+cos^4=1, sinh^10-cosh^10=-1.
Also, the arguments can be also multitokens, so that it's possible to simplify, for example: 'sin^2(k())+cos^2(k())=1'.
2013-01-04 13:06:09 +01:00
Edoardo Prezioso 5485e6866f Fixed wrong tokenization of some math formulas:
The two formulas: sin^2+cos^2 = 1 and sinh^2-cosh^2 = -1 are true iff the two arguments are the same.
2013-01-04 11:28:01 +01:00
Robert Reif d37906041b Fixed #4458 (False positive: noCopyConstructor in template class) 2013-01-04 10:35:24 +01:00
Daniel Marjamäki a3ee72a51d Fixed #4409 (Cppcheck 1.58 dev hangs when checking mhz.c of lmbench3 (attached code)) 2013-01-03 19:14:44 +01:00
Daniel Marjamäki 70059c06de Fixed #4456 (std::string::compare(char const*) crash) 2013-01-03 08:44:32 +01:00
Daniel Marjamäki 6e58ed3040 Fixed #4454 (False positive: class member (POD) not initialized (when initialized to 0 in initializer list)) 2013-01-02 13:59:57 +01:00
Reijo Tomperi 5d5f7085bf Updating year 2012 -> 2013 to .cpp and .h files and man page. 2013-01-01 18:29:08 +02:00
Robert Reif d2e8ab9c86 Fixed #4302 (Member variable not initialized in public delegate constructor) 2013-01-01 09:53:40 +01:00
Daniel Marjamäki 4378357d7e Fixed #4372 (Tokenizer misidentifying which function a variable belongs to) 2012-12-29 21:07:41 +01:00
Daniel Marjamäki 4d085dd3fd Fixed #4316 (False positive: (constStatement) Redundant code) 2012-12-29 17:13:06 +01:00
Daniel Marjamäki e7aa1ec396 Fixed #4411 (Variable is assigned a value that is never used.) 2012-12-29 12:45:37 +01:00
Daniel Marjamäki 8491df31ca Merge pull request #126 from SimonKagstrom/for-upstream
Misc fixes for the --include= option
2012-12-28 23:58:14 -08:00
Daniel Marjamäki 9af51a75e6 Tokenizer::setVarId: Proper handling of 'void f(struct foobar). Ticket: #4444' 2012-12-29 08:54:39 +01:00
Daniel Marjamäki 38d1b064e8 Symbol database: Add support for unnamed array arguments to functions (#4444) 2012-12-29 08:32:43 +01:00
Robert Reif 07d118dee5 Fixed #4449 (segfault in CheckClass::initializeVarList()) 2012-12-29 08:30:14 +01:00
Thomas Jarosch 1f87c6d669 Fix crash on empty brackets
Relevant parts from the backtrace:
2012-12-28 20:16:51 +01:00
Daniel Marjamäki 1769240e15 Fixed #4022 (false positive: (style) Variable 'sort_entry' is assigned a value that is never used) 2012-12-28 18:18:36 +01:00
Simon Kagstrom 95b51d02c9 path: Add getPathFromFilename (returns the path part of a filename)
E.g.,

  /tmp/a.h -> /tmp/
  a.h ->

etc.
2012-12-28 12:44:26 +01:00
Daniel Marjamäki de2c133f6a Fixed #4426 (False positive: Unitialized variable warning when comparing addresses) 2012-12-28 12:32:15 +01:00
Thomas Jarosch 4708be09f5 Fixed #4444 (segmentation fault) 2012-12-28 11:15:18 +01:00
Robert Reif bd2f59bdf0 Fixed #4442 (crash of cppcheck while scanning gcc-testsuite (invalid code)) 2012-12-28 08:36:20 +01:00
Daniel Marjamäki b914466285 Uninitialized variables: fixed false positives by bailing out when variable is conditionally initialized and then there is a conditional return. 2012-12-27 18:45:00 +01:00
Daniel Marjamäki bf9b900c30 Tokenizer::setVarId: Fixed problem with initializer lists (#4436) 2012-12-27 18:15:00 +01:00
Robert Reif a43ae677d7 Fixed #4419 (False positive: Class does not have a constructor) 2012-12-27 17:21:30 +01:00
Robert Reif 3e6d601982 Fixed #4436 (FP: Member variable is not initialized in the constructor. (with two parameters)) 2012-12-27 17:15:38 +01:00
Simon Kagstrom ef28bde3e4 Fixed #4408 (Force inclusion of files (a la -include /.../ in GCC)) 2012-12-27 16:52:31 +01:00
Daniel Marjamäki 2e0a9c4b33 Fixed #4434 (false positive: (style) Mismatching assignment and comparison, comparison 'pen!=-1' is always true.) 2012-12-27 15:40:00 +01:00
PKEuS 735069e3a7 Fixed unit tests 2012-12-26 12:50:59 +01:00
Daniel Marjamäki b3301a9ef9 Fixed #4433 (Wrong array size for string with \0) 2012-12-26 12:10:09 +01:00
Robert Reif ce380301fd Fixed #4432 (Crash on parsing PHP interpreter) 2012-12-26 08:29:10 +01:00
Daniel Marjamäki f127d56719 Null pointer: Fixed FP when there are 'return p?p->x:0;' 2012-12-25 14:23:50 +01:00
Daniel Marjamäki f16c30248a Uninitialized variables: fixed FP when there are function calls where type* is converted to unknown_type 2012-12-25 14:05:29 +01:00
Daniel Marjamäki f381058293 Uninitialized variables: fixed FP when there are suspicious function calls where type** is converted to type* 2012-12-25 13:58:15 +01:00
Daniel Marjamäki bcc5a82b1d Uninitialized variables: Fixed FP when using typeof on uninitialized data in return statement 2012-12-25 13:31:54 +01:00
Daniel Marjamäki db123c2c9b Fixed #4431 (FP: Erroneous 'Ineffective call of function empty()' in ?: test) 2012-12-25 12:50:38 +01:00
Daniel Marjamäki 299c1bb208 Uninitialized variables: handle unsimplified labels better 2012-12-25 10:37:21 +01:00
Daniel Marjamäki db2a129557 Tokenizer: Improved handling of '\0' in strings 2012-12-25 08:56:12 +01:00
Daniel Marjamäki 83da4125e3 Uninitialized variables: Better value flow analysis. Fixed false positives. 2012-12-24 19:11:13 +01:00
Daniel Marjamäki b39afb2cf9 Revert "Fixed #4419 (False positive: Class does not have a constructor)"
This reverts commit 9a79961b6c.

There is a segmentation fault when checking lib/preprocessor.cpp
2012-12-24 07:46:55 +01:00
Robert Reif 9a79961b6c Fixed #4419 (False positive: Class does not have a constructor) 2012-12-24 06:46:30 +01:00
Daniel Marjamäki 56b7670468 Tokenizer::setVarId: Fixed problem in initializer list when parameter and class member has same name 2012-12-23 19:55:09 +01:00
Daniel Marjamäki 0b4da3d5cd Uninitialized variables: Fixed false positives when variable x is given a nonzero value when variable y is uninitialized. 2012-12-23 16:27:04 +01:00
Robert Reif dae232015e Fixed #4430 (FP: Member variable is not initialized in the constructor.) 2012-12-23 08:04:44 +01:00
Daniel Marjamäki 47e1a571f7 Tokenizer: Fixed goto problems 2012-12-22 19:28:53 +01:00
Daniel Marjamäki 7f6a10599b Fixed #4262 (Small Request/Suggestion for checks on array size of args (bounty offer)) 2012-12-22 09:23:34 +01:00
Daniel Marjamäki 365a260ddc Fixed #4398 (False negative: out of bounds (for loop)) 2012-12-22 08:00:05 +01:00
Robert Reif 80848c6e0e Fixed #4383 (Improve check: uninitialized member variable not detected when initialization is not proper) 2012-12-21 19:36:45 +01:00
Daniel Marjamäki 2050cd71db Uninitialized variables: Better testing of function handling 2012-12-21 19:32:56 +01:00
Daniel Marjamäki dc6aa92f3b Uninitialized variables: warn about structs in C code 2012-12-21 18:50:38 +01:00
Daniel Marjamäki cf84c211ed Uninitialized variables: Improved handling of function calls 2012-12-21 17:04:15 +01:00
Daniel Marjamäki 415ee977d8 Uninitialized variables : fixed false positives when passing address of pointer to function. 2012-12-21 16:57:49 +01:00