Commit Graph

2981 Commits

Author SHA1 Message Date
Reijo Tomperi 7a294c1f79 Fix #3307 (Invalid format string/parameter mismatch warning)
http://sourceforge.net/apps/trac/cppcheck/ticket/3307
2011-11-09 00:16:37 +02:00
Edoardo Prezioso 0569953753 Fixed ticket #3309 (false positive: (style) Boolean result is used in bitwise operation. Clarify expression with parentheses) 2011-11-08 22:48:14 +01:00
Richard Quirk d5c7c5d098 Remove duplicate expressions on both sides of || 2011-11-08 21:56:54 +01:00
Richard Quirk d1bc8819f9 Fix for same expression separated by commas
The code branch tested by the previous check for && is now different, so
I've changed the test to use == instead. There was also a missing case
when the expression was followed by a comma instead of being preceded by
one.
2011-11-08 21:56:54 +01:00
Richard Quirk d5664dd6cf Improved %or% and & checks 2011-11-08 21:56:54 +01:00
Richard Quirk 4cb97edbaf Improved same expression check for ticket #3274
Expand the logic for the check for the same expression on both sides of
the || and && operators. Now expressions can be more complex, with the
"alt" variable helping to fudge operator precedence to avoid false
positives.
2011-11-08 21:54:42 +01:00
Edoardo Prezioso 3cc9a333c9 Fixed tokenizer: don't change '*(str+num)' if '*' means a product with a previous variable or number.
Ditto for '&str[num]' (still commented).
2011-11-08 18:14:43 +01:00
Edoardo Prezioso a546fc6e9d Fixed ticket #3310 (segmentation fault of cppcheck) 2011-11-08 17:37:24 +01:00
Edoardo Prezioso aaa77c4709 Improve tokenizer: remove more redundant parenthesis and add a prototype code for: '&str[num]'=>'(str+num)' with reporting non obvious test failures. 2011-11-07 23:40:06 +01:00
Marek Zmysłowski fed875f4a4 Fix #70 (Locate memory leaks when alloc happens in function parameter)
http://sourceforge.net/apps/trac/cppcheck/ticket/70
2011-11-07 23:50:57 +02:00
Reijo Tomperi 7b7e072b88 Fix #3278 (FP: Possible null pointer dereference with for loop)
http://sourceforge.net/apps/trac/cppcheck/ticket/3278
Bail out if token "for" is encountered.
2011-11-07 22:10:21 +02:00
Edoardo Prezioso 5cf7cb9ff5 Conforming style: always use 'std::' namespace where needed. This removes the mixing style inside the code. 2011-11-07 00:54:00 +01:00
Thomas Jarosch a83c47d9cf Fix false positive of %or% match in alternative pattern match code
%or% triggered on code using "|=" or "||".
2011-11-06 22:12:31 +01:00
Richard Quirk 7f88b66842 Fix namespaced types for auto_ptr new[] errors
This fixes false negatives for code such as:

    std::auto_ptr<foo::bar> p(new foo::bar[10]);

The idea is to find a "new", search for the end token ";", then see if
the declaration ends in a closing square bracket. Also fixes other cases
that checked for "new %type% [" so that they work with namespaces.
2011-11-06 21:20:24 +01:00
Daniel Marjamäki fa076598ad Fixed #3233 (false positive: (style) Checking if unsigned variable 'i' is less than zero.) 2011-11-06 18:24:37 +01:00
Thomas Jarosch 19c9c97608 Fix single %op% operator not working at all
When parsing the Token::Match pattern, we accesed
the wrong character in the pattern and never
executed the %op% check.

In addition the unit test function for %op%
wasn't registered in the test suite. Ups.

All fixed now and also provide a complete
check for all operators %op% supports.
2011-11-06 18:02:18 +01:00
Edoardo Prezioso 6e2f2816de Improve same expression check: remove '%op%' pattern and add ',' for the same expressions as an argument inside a function.
Improve compound assignment simplification: use already defined 'isAssignmentOp' and extend the adding parenthesis to a generic operator, not only to the arithmetical ones. See: http://en.cppreference.com/w/cpp/language/operator_precedence
2011-11-06 14:35:53 +01:00
Daniel Marjamäki f092779a4d Fixed #3282 (Invalid report that an array index is of type char.) 2011-11-06 11:26:28 +01:00
Daniel Marjamäki ed97b62610 Fixed #3275 (Missing includes always reported) 2011-11-06 08:59:07 +01:00
Daniel Marjamäki e11c1f7975 Fixed #3265 (false positive: comparison of bool with nonzero integer) 2011-11-06 08:21:34 +01:00
Edoardo Prezioso 99463d3368 Improve same expression check: take count of operations and assignments before the same expression and add missing 'return' pattern to the struct member variable part of the check. 2011-11-05 22:25:01 +01:00
Daniel Marjamäki d4a8184339 Fixed #3251 (Redundant code: Found a statement that begins with numeric constant) 2011-11-05 20:28:52 +01:00
Daniel Marjamäki 9903c8c0d9 astyle formatting 2011-11-05 20:00:18 +01:00
Daniel Marjamäki 2f32965bdf Token: assert that multicompare patterns don't begin with some %% command 2011-11-05 19:59:48 +01:00
Daniel Marjamäki 5edf153602 Fixed #3294 (Token::Match multi compare false negative) 2011-11-05 19:24:21 +01:00
Daniel Marjamäki 580fef6951 Merge pull request #55 from richq/sameexpr
Improve for same expression on both sides of operator
2011-11-05 10:28:14 -07:00
Richard Quirk a3f2c1e651 Improve for same expression on both sides of operator 2011-11-05 15:46:11 +01:00
Richard Quirk 68202d8ffb Extra check for auto_ptr new[]
This fixes cases like this:

   auto_ptr<foo> bar(new foo[10]);

which previously did not work correctly.
2011-11-05 15:45:59 +01:00
Daniel Marjamaki b96ab6ba26 Fixed #3188 (Function parser false positive) 2011-11-05 12:23:05 +01:00
Daniel Marjamäki 085a6285fa Fixed #3117 (Tokenizer::simplifyKnownVariables : Don't simplify static variable that is changed) 2011-11-05 08:30:11 +01:00
Daniel Marjamäki d3b27c40fc fixed --doc output 2011-11-05 07:45:30 +01:00
PKEuS 0c469bae41 Fixed #3089 (New Check: Detect wrong usage of printf/scanf) 2011-11-05 07:29:53 +01:00
Thomas Jarosch 4342fd254c Fixed #3266 (False positive on dangerous usage of .c_str()) 2011-11-04 19:21:19 +01:00
Reijo Tomperi 682aae3196 Improve internal error print out, print line number with the error message. 2011-11-03 22:43:13 +02:00
Daniel Marjamäki 9b8ffe7219 Fixed #3248 (Tokenizer: better handling of char constants that are compared with numeric constants) 2011-11-03 20:03:31 +01:00
Daniel Marjamäki 73f3b2074b Fixed #3285 (wrong #elif behaviour) 2011-11-03 19:05:48 +01:00
Daniel Marjamaki b6b5416b42 Tokenizer: Fixed failed unit test 2011-11-02 20:42:38 +01:00
Daniel Marjamaki dfcbc38466 Preprocessor: Don't warn about missing system headers during 'normal' preprocessing 2011-11-02 18:40:56 +01:00
Daniel Marjamaki 0884204c2f Fixed #3279 (Token::Match called with varid 0) 2011-11-02 18:31:13 +01:00
Daniel Marjamäki af7bf5c805 removed 'explicit constructors' check. see comments in pull request #51 for the reasons. 2011-11-02 17:12:46 +01:00
Daniel Marjamaki 937a4497ca Fixed #3272 (Internal error) 2011-11-01 18:03:32 +01:00
Edoardo Prezioso 9dd3360cd6 Fix some complainted choices made in my older commits.
Note: probably you should do 'make clean' before using 'make' to rebuild it again. Maybe it's me but 'make' reports various errors when linking.
2011-11-01 13:23:47 +01:00
Daniel Marjamäki b18778129c STL: updated error messages for 'useless call to find/swap/substr'. Ticket: #3258 2011-10-31 21:32:30 +01:00
Daniel Marjamäki 7d7a54d89c Merge pull request #53 from gansb/master
Add missing newline
2011-10-31 11:53:33 -07:00
Daniel Marjamäki a7f27a83a7 Fixed #3271 (Regression: something related to symbol database / varid) 2011-10-31 18:33:15 +01:00
Benjamin Goose f22f9fcc0e Add newline at end of file! 2011-10-31 15:12:29 +01:00
Edoardo Prezioso 4295439e53 Fixed ticket #3269 (Regression, I think it's somehow related to symbol database) 2011-10-31 15:05:52 +01:00
Edoardo Prezioso ba5909ef1d General code tweaking, nothing strange. 2011-10-31 02:24:59 +01:00
Daniel Marjamaki f2199adc3f Preprocessor: Bailout #include if it is recursive 2011-10-30 19:00:11 +01:00
Daniel Marjamäki 278ba0ab3a Preprocessor: Enable 'normal' preprocessing whenever any defines are given. The special define CPPCHECK-TEST isn't needed anymore. 2011-10-30 18:40:59 +01:00
Edoardo Prezioso 433f4640a9 Fix some GCC warnings regarding the sign conversion. 2011-10-30 18:34:49 +01:00
Daniel Marjamäki f7fe665b00 Fixed #3231 (False positive: uninitialized variable '({...})') 2011-10-30 18:19:09 +01:00
Daniel Marjamäki 63937f592e Fixed #3228 (false positive: possible null pointer dereference) 2011-10-30 17:59:38 +01:00
Daniel Marjamäki 7035d4cdd2 astyle formatting 2011-10-30 17:41:05 +01:00
Daniel Marjamaki 71f08d0a66 Fixed #3222 (false positive: Uninitialized variable with function pointer) 2011-10-30 17:22:30 +01:00
Edoardo Prezioso 4fc7e86d7d Fixed: with checkConst and checkVariableScope wanted still required "information" settings instead of "style". 2011-10-30 10:58:15 +01:00
Daniel Marjamaki 132f0e12d1 CheckClass: Added classInfo about explicit checking 2011-10-30 09:54:02 +01:00
Daniel Marjamaki 8514466c68 Visual Studio: Fixed compiler error 2011-10-30 09:53:14 +01:00
Daniel Marjamäki 0d1046eeeb Merge pull request #51 from richq/explicit
Explicit constructors
2011-10-30 01:38:26 -07:00
Edoardo Prezioso 42fd4e2f52 Tokenizer: Change 'var++|--;' into '++|--var;' and remove redundant 'tokAt(0)'. 2011-10-29 22:25:49 +02:00
Daniel Marjamäki 92333b585a Fixed #3092 (Tokenizer::setVarId : shadow variable in member function gets the wrong varid) 2011-10-29 21:25:58 +02:00
Daniel Marjamäki d7be62a6f9 Fixed #3221 (FP: Array 'arr[2147483648]' index 0 out of bounds in loop when size unknown to cppcheck) 2011-10-29 20:26:24 +02:00
Daniel Marjamäki 24a2b6e6ba Fixed #3195 (operator() from a functor-struct is never used) 2011-10-29 20:04:43 +02:00
Daniel Marjamäki a809bb3471 astyle formatting 2011-10-29 19:51:11 +02:00
Daniel Marjamäki acaa9c456f Fixed #3152 (Tokenizer: template constructor is removed) 2011-10-29 19:45:47 +02:00
Daniel Marjamäki 316aa920eb Fixed #3245 (False positive: Dangerous usage of 'string' (strncpy doesn't always 0-terminate it)) 2011-10-29 19:11:42 +02:00
Richard Quirk a0a5b36667 Ensure single-argument constructors are explicit 2011-10-29 18:24:30 +02:00
Richard Quirk 2ca932a3ae Add checks for explicit constructors
Single-argument constructors should be explicit. Constructors with
multiple arguments should not be marked explicit.
2011-10-29 18:24:16 +02:00
Daniel Marjamäki 8f49eb6a7e Tokenizer: Make sure that friend classes don't get varid. Ticket: #2962 2011-10-29 18:22:58 +02:00
Daniel Marjamäki d75ef01d2b Null pointer: Added inconclusive error message when calling member function of NULL object. 2011-10-29 15:48:54 +02:00
Daniel Marjamäki 3c509589b5 use reportInconclusiveError instead of reportError if checking is inconclusive 2011-10-29 15:16:27 +02:00
Reijo Tomperi 12a10a7297 Fix related to previously fixed #3256 (Null pointer dereference not detected)
Use reportInconclusiveError() instead of reportError().
2011-10-29 15:55:52 +03:00
Daniel Marjamäki a79b5a5c36 astyle formatting 2011-10-29 12:53:08 +02:00
Daniel Marjamäki f04210ad9f updated comment. removed a inconclusive condition, I don't think it's needed. 2011-10-29 12:52:46 +02:00
Thomas Jarosch ad40586e96 Disable internal checks if NDEBUG is defined (release build) 2011-10-29 12:47:12 +02:00
Daniel Marjamäki 6c02de151f strncmp sizeof: tweaked the check. 2011-10-29 12:27:19 +02:00
Thomas Jarosch 3d438003ff Add internal check that searches Token::Match() patterns for missing % end charaters
Example: "%type" or "foo %var bar"
2011-10-29 12:22:26 +02:00
Daniel Marjamäki 8416768e03 Merge pull request #50 from richq/strncmp
Improved strncmp checks
 * strings are always the same
 * inconclusive: using sizeof(char *) as size parameter
2011-10-29 03:13:21 -07:00
Thomas Jarosch 2b8da1241b Add missing percent end character 2011-10-29 12:08:36 +02:00
Richard Quirk 45d0709ed5 Only run sizeof(char*) check if inconclusive is set 2011-10-29 11:59:24 +02:00
Richard Quirk c2d7824130 Move string comparison out of the report function 2011-10-29 11:52:19 +02:00
Reijo Tomperi 5e0e2c4782 Fix #3256 (Null pointer dereference not detected)
http://sourceforge.net/apps/trac/cppcheck/ticket/3256
It is now detected if --inconclusive command line argument is given (the argument is unofficial currently)
2011-10-29 11:35:31 +03:00
Marek Zmysłowski 950460c0a7 Fixed #3261 (Function 'find' useless call. The variable 'str' is using function 'find' against itself) 2011-10-29 09:24:05 +02:00
Edoardo Prezioso 5d868766c7 Tokenizer time improvements (time says real: -1 second)
1)change tokAt(1|-1) with next()|previous() with conditions where necessary;
2)change strAt(1|-1) with next()|previous()->str() with conditions where necessary;
3)change tokAt(n)->str(), with n != -1,1, to strat(n);
4)change simplifyFuncInWhile implementation because it was too slow and stupid.
2011-10-29 01:57:53 +02:00
Edoardo Prezioso dd719b41bf Definitely check correctly 'sizeof %num%' when '%num%' has '-' sign. 2011-10-29 00:11:38 +02:00
Thomas Jarosch dee03a09e4 Fix logic glitch
Reported by Pc-Lint 9.x :o)

The code was working before as the AND operation
also matched in that specific case.

I verified that code is in use by commenting
it out and checked how many tests failed.
2011-10-28 23:36:30 +02:00
Thomas Jarosch f6e68914ea Add check for cppcheck's internal API usage (#3263)
First checks:
- Simple pattern used inside Token::Match()
- Complex pattern used inside Token::simpleMatch()

The checks get enabled by passing "--enable=internal".
It's not included in "--enable=all".

If you see something that needs further tweaking, just go for it!
2011-10-28 22:46:07 +02:00
Richard Quirk 665cdfabdc Warn when sizeof is used in strncmp ticket #2095
This checks for the case where the user thought sizeof(buf) gave the
size in bytes of 'buf' in code like the following:

  const char *buf = "Hello World";
  strncmp(buf, other, sizeof(buf));
2011-10-28 22:14:55 +02:00
Richard Quirk 90c7db15a0 Add check for comparison of identical string variables 2011-10-28 22:12:51 +02:00
Richard Quirk 4ba6ac7332 Add strncmp to the list of static string comparison functions 2011-10-28 22:12:51 +02:00
Edoardo Prezioso 979f3b051c Improve nextArgument by returning 0 if there's an unexpected ';'. 2011-10-28 18:57:10 +02:00
Thomas Jarosch ef8f49bbf3 Use new findsimplematch API for simple patterns 2011-10-28 12:49:03 +02:00
Edoardo Prezioso bab740289c Complete todo: convert 'for' into 'while'.
It's not possible to enable this code because of the disaster it will be created for all the checks with the 'for' pattern.
2011-10-28 00:50:54 +02:00
PKEuS 49fd057e17 Tokenizer: Simplify 'foo(void)' to 'foo()' 2011-10-27 19:56:59 +02:00
PKEuS 845e5d259a Improved isJavaOrCSharp, isC and isCPP. Fixed isC for files with includes. 2011-10-27 19:18:54 +02:00
Thomas Jarosch 22251d50bb Bugfix: Use Token::Match instead of Token::simpleMatch because it's a complex pattern
This bug was in here before my recent refactoring.

(And yes, I wrote a check for cppcheck's Token::Match invocation ;))
2011-10-27 16:43:04 +02:00
Thomas Jarosch 434fb933a8 Implement Token::findsimplematch und use it for simple patterns 2011-10-27 15:59:22 +02:00
Thomas Jarosch 54adb910ec Use Token::simpleMatch instead of Token::Match for simple patterns 2011-10-27 15:59:22 +02:00
Daniel Marjamaki 5f4c882b08 minor formatting updates of --doc output 2011-10-27 10:50:40 +02:00
Edoardo Prezioso 9bb1a1b7a5 Added code for simplification of 'for ( a; b; c;); -> '{ a; for (; b; c;) ; }'.
It's not enabled because it fails many tests with testrunner.
2011-10-27 02:59:50 +02:00