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9513 Commits

Author SHA1 Message Date
Thomas Jarosch 311630ac1c Match compiler: Python syntax simplification 
Output in build/ stayed the same
 2012-12-31 15:03:00 +01:00
Thomas Jarosch d366b00eca Add myself to AUTHORS 2012-12-31 14:53:41 +01:00
Thomas Jarosch 51cff0cb9b Match compiler: Speed up Token comparison with string literals. Ticket #4451 
"Cache" string literals as C++ std::string objects.
The string length gets cached and so we don't need to
call strlen() on the literals at runtime.
 2012-12-31 14:45:16 +01:00
Edoardo Prezioso 6612952dd4 Use 'simple' matching with normal patterns. 2012-12-31 13:30:06 +01:00
Daniel Marjamäki 676b5a15a6 reduce: Added simple command line tool that reduces code for a false positive. 2012-12-31 12:41:36 +01:00
Daniel Marjamäki bf169e0c59 Replaced %name% with %type% 2012-12-31 10:45:37 +01:00
Thomas Jarosch 3c915b534d Match compiler: Collect and cache plain C-strings 
Profiler runs with gperftools showed we were spending
a lot of time in strlen() even with compiled match patterns.

If you compare a std::string with a plain C-string,
the comparison operator needs to calculate the length
of the C-string via strlen().

We can avoid this by turning all C-strings into C++ strings,
which cache the string length internally.

The match compiler has been adapted to collect all
C-strings during compilation and aggregate them.

Benchmark on the 'rpm' code base on a Core i7 920 box:

cppcheck without matchcompiler:
real    0m30.977s

cppcheck with previous matchcompiler:
real    0m28.157s

cppcheck with cached C-strings:
real    0m17.823s
 2012-12-30 23:24:28 +01:00
Thomas Jarosch fe5ee76165 Match compiler: No need to handle %num% twice 2012-12-30 20:33:49 +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 dde4cc39e5 astyle formatting 2012-12-29 17:13:54 +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
Robert Reif 5ba2a300af Symbol database: Improved handling of array arguments (#4444) 2012-12-28 16:28:29 +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
Simon Kagstrom 66a3e5e313 Ticket 4408: cmdlineparser: Improve description of --include= 2012-12-28 12:43:43 +01:00
Simon Kagstrom 350f86fb6a preprocessor: Kill commented out code 2012-12-28 12:43:43 +01:00
Simon Kagstrom 2b698919c4 Ticket #4408: cmdlineparser: Don't force single configuration with --include= 2012-12-28 12:43:43 +01:00
Simon Kagstrom 1e4288fe2e preprocessor: Don't access empty lists 
libc aborts with:

/usr/include/c++/4.4/debug/list:256:error: attempt to access an element in
    an empty container.

Objects involved in the operation:
sequence "this" @ 0x0xbfffe5f0 {
  type = NSt7__debug4listISsSaISsEEE;
}

otherwise.
 2012-12-28 12:43:43 +01:00
Daniel Marjamäki de2c133f6a Fixed #4426 (False positive: Unitialized variable warning when comparing addresses) 2012-12-28 12:32:15 +01:00
Daniel Marjamäki 6770cc80be Uninitialized variables: Added debug warning for bailout 2012-12-28 11:42:50 +01:00
Thomas Jarosch 78316f02b6 Fix comment about wrong magic number 2012-12-28 11:31:50 +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
Daniel Marjamäki 7368079949 Fixed Cppcheck self-check message 2012-12-27 17:11:22 +01:00
Daniel Marjamäki 57488db9da Preprocessor: Reduce variable scope 2012-12-27 17:00:59 +01:00
Daniel Marjamäki 0585588fc7 astyle formatting 2012-12-27 16:59:30 +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
acm4me 7da155c8ba Support for Sun Studio C++ compiler 2012-12-27 11:51:12 +01:00
Daniel Marjamäki bfb82fe3e1 Cppcheck: Show single 'too many configurations' message if --enable=information hasn't been used and there are too many configurations. 2012-12-26 18:35:49 +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
Thomas Jarosch 33f4bd0298 Silence cppcheck warning 2012-12-25 15:28:58 +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
Thomas Jarosch 3d0b4a9f7e Add execute permissions to matchcompiler.py on linux 2012-12-25 13:18:24 +01:00
Thomas Jarosch a2885a1759 Python 3 compatibility for the helper scripts 
print() is a function in python 3.
Works with pyhton 2.x, too.
 2012-12-25 13:12:58 +01:00