Commit Graph

4395 Commits

Author SHA1 Message Date
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
Thomas Jarosch f867d05d81 Use Token::simpleMatch() for simple pattern
Found by "internal" check
2013-01-21 10:14:39 +01:00
Daniel Marjamki 76534ccd1b Uninitialized struct member: Fixed false negatives for return statements 2013-01-20 17:54:32 +01:00
Daniel Marjamki d33341a21a Fixed #4502 (Preprocessor: Treat SystemInclude and UserInclude the same) 2013-01-20 14:42:04 +01:00
Daniel Marjamki 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 Marjamki 6d5532980e Tokenizer: Set proper variable ID when simplifying return statement. Ticket: #3500 2013-01-19 13:42:54 +01:00
Daniel Marjamki bff6ed7af0 Fixed #3500 (false negative: (error) Returning pointer to local array variable) 2013-01-19 13:39:23 +01:00
Daniel Marjamki f1c195e652 Fixed #3506 (false negative: not initialized variables ( struct timeval)) 2013-01-19 12:48:56 +01:00
Thomas Jarosch 7c4f0e594b astyle formatting 2013-01-19 11:49:35 +01:00
Daniel Marjamki 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 c59dab2738 uninitialized struct member: changed severity from warning to error since it is UB 2013-01-17 23:18:37 +01:00
Daniel Marjamäki 2c6b383822 Uninitialized member variables: Improvements 2013-01-17 21:04:22 +01:00
Daniel Marjamäki e32ab4bf65 uninitialized struct members: improved fix 2013-01-17 17:21:21 +01:00
Daniel Marjamäki 93fb6b0c6a Fixed #4493 (FP: uninit struct member (struct is assigned)) 2013-01-17 17:01:04 +01:00
Thomas Jarosch b1eec7c6b7 Small refactoring to compile more matches
*** Timing of the test suite ***
Four runs were used to calculate the average run time.

Before: ~1,103s
After: ~1,066s
Speed up: 3,35%

*** Timing of internal projects using STL ***
Before: ~8,301s
After: ~8,207s
Speed up: 1,13%

So the real world speed up is roughly 1%.
2013-01-17 10:26:03 +01:00
Thomas Jarosch c8b619ef86 Let the match compiler catch some more patterns 2013-01-16 22:05:28 +01:00
Thomas Jarosch e22b1f7740 Adapt Tokenizer::simplifyCallingConvention() and Tokenizer::simplifyKeyword() for the match compiler
This little change gives another 6% speed improvement on my box.
(tested with the testsuite and checking the 'rpm' codebase)

The profiler showed we were spending quite some time in
Tokenizer::simplifyCallingConvention(). The multi match
pattern in there is "complex", at least for the on-the-fly parser.
2013-01-16 20:33:01 +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 78f3c5f772 Unused functions: Fixed invalid pattern match 2013-01-16 06:43:19 +01:00
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
Thomas Jarosch f4227967ce Simplify token string access
"internal" check reported:
[lib/tokenize.cpp:6671]: (style) Call to 'Token::tokAt()' followed by 'Token::str()' can be simplified.
2013-01-15 20:37:02 +01:00
Thomas Jarosch 5c8b05ce94 Use Token::simpleMatch() for simple pattern
"internal" check reported:
[lib/symboldatabase.cpp:945]: (warning) Found simple pattern inside Token::Match() call: "> ("
2013-01-15 20:34:11 +01:00
Daniel Marjamäki 2fa35a6f8d Fixed #4429 (unused functions: handle function declarations better) 2013-01-15 17:00:28 +01:00
rofl0r de72ae9f45 sanitize the descriptive text displayed for "varFuncNullUB" 2013-01-14 18:11:16 +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
Erik Lax b538c50856 Fixed #4484 (1.58: new crash for linux kernel code) 2013-01-13 07:57:46 +01:00
PKEuS c62233643a Set version to 1.59 dev 2013-01-12 17:49:09 +01:00
Daniel Marjamäki 3057078571 1.58: Set versions 2013-01-12 14:49:58 +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 33619de072 Revert "Change location of %op% operator in multicompare"
It's no longer needed with the proper fix for Token::Match().

This reverts commit 8b2adf1391.
2013-01-09 17:06:04 +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 8b2adf1391 Change location of %op% operator in multicompare
When the %op% operator is the first element
of a multicompare, it properly executes Token::isOp().
Otherwise it uses it's "internal implementation".

Workaround inspired by Edoardo Prezioso.
2013-01-08 20:26:48 +01:00
Frank Zingsheim 498d03458f Fixed #4385: lock_guard RAII throws unreadVariable 2013-01-07 20:28:43 +01:00
XhmikosR 049c995c99 version.h: update copyright year 2013-01-07 19:53:32 +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