51d128c918
Fixed #2029 (free invalid address) by reporting previously-unreported errors as "inconclusive"
2012-11-05 21:02:51 -08:00
e7483af028
Opposite inner conditions - made check 'experimental' because there are unsolved false positives.
2012-10-21 18:18:29 +02:00
9e297c95f2
Fixed #2617 (improve check: comparing boolean with '<')
2012-09-26 18:18:36 +02:00
6e4e3dfbfb
lib: tabs to spaces, remove trailing spaces and extra empty lines at the end of files
2012-09-17 13:51:23 +02:00
5237ed2de9
Message refactorization: checkother.cpp
2012-09-16 19:44:02 +02:00
9a624576f4
Revert "CheckOther::clarifyStatement: improved message to show what's the 'bad' and the 'good' expression."
...
This reverts commit f8591f9004
2012-09-15 20:19:02 +02:00
c7633fc73c
Fixed #3645
2012-09-05 13:48:00 +02:00
8546bcc94e
Fixed #2029 (new check: free invalid address)
2012-09-04 23:31:23 -07:00
f8591f9004
CheckOther::clarifyStatement: improved message to show what's the 'bad' and the 'good' expression.
2012-09-04 02:07:55 +02:00
2d64b69cf4
New check: Detect redundant assignment to a variable and redundant copying to a buffer
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This check partially replaces the check for redundant assignments in switch
2012-09-02 13:09:32 +02:00
808c3468c9
New check: detect suspicious comparison of string literal with char* variable
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Bugfix: Update Token type when varId is set
2012-08-24 14:25:17 +02:00
76fbcce13f
Restored (intentional) content of screwed up commits 1bcdf4ce3d and 674f7980d519712ff16d8f874dfe55a84deb4b5b:
...
- New check (Inconclusive): Array filled incompletely with memset/memcpy/memmove
-- This check only warns if the number of elements is given as size in bytes to memset, memcpy or memmove and if the size of an element is larger than 1 Byte. It does not warn for random numbers
- New check: Detect ineffective statements like '*foo++;' (Should be: '(*foo)++;')
Sorry for the inconveniences.
2012-08-24 11:28:50 +02:00
0f1accc2da
Revert latest two commits as they break the compilation and the style. PKEuS???
2012-08-24 00:10:19 +02:00
1bcdf4ce3d
New check: Detect ineffective statements like '*foo++;' (Should be: '(*foo)++;')
2012-08-23 12:28:40 -07:00
674f7980d5
New check (Inconclusive): Array filled incompletely with memset/memcpy/memmove.
...
This check only warns if the number of elements is given as size in bytes to memset, memcpy or memmove and if the size of an element is larger than 1 Byte. It does not warn for random numbers
2012-08-23 11:27:00 -07:00
7c8da17c44
Added check for detecting if a variable or number is shifted by negative right operand. Statements like:
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int i = -1;
a << i;
would result in an error message stating undefined behavior.
2012-08-22 15:44:20 +02:00
afe030ce9b
Fixed #2628 : Detect redudant usage of operator++/-- in switch.
2012-08-22 14:40:57 +02:00
b4b5c80db9
Improved check: Added message when checking sign of a pointer.
2012-08-21 03:28:02 -07:00
1b40668e04
Refactorizations:
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- Made several functions (Check*::myName and others) because they don't touch depend on a specific instance. (cppcheck findings)
- Removed description of a check in CheckConst that has moved to CheckIO
2012-08-02 09:50:48 -07:00
188d2e143d
add a performance checker for const assignment
2012-07-22 09:17:00 +02:00
25c1cc4c8e
Improve check: warn when comparing boolean value with < <= > >=. Ticket: #2617
2012-07-03 06:39:13 +02:00
935351c601
Fixed #3895 (Improve check: double deallocation not detected (if-else))
2012-06-22 09:10:30 +02:00
4b80e91145
Implemented support for building cppcheck lib into a dll
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Updated VS9 solution
New VS10 solution that builds cppcheck into a dll used by cli and testrunner.
Functional changes and advantages of new solution:
- Share code between testrunner and cli; ability to share code with gui as well (not yet implemented)
- Files of /lib are no longer compiled twice (should improve build time on single core machines)
- Added configuration for building with PCRE support
- Executables are build into /bin (/bin/debug in debug mode) folder (Should no longer require rebuild when switching between debug and release)
- Completely x64 compatible (contains also x64-debug configuration now)
2012-06-10 05:19:09 -07:00
2bd171dded
Fixed #3794 (New check: Missing break in switch (duplicate bitwise operation))
2012-05-28 21:19:22 -07:00
e2bab4b6a3
Implemented Function::nestedIn to be able to identify the scope the function belongs to, even if Function::functionScope.functionOf is not available.
...
Refactorized usage of SymbolDatabase in checkOther:
- Don't copy Function instances in checkExpressionRange
- Simplifications by more accurate usage of information in database
2012-05-24 08:40:43 -07:00
97c4af44ca
Refactorizations in checkOther:
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- More accurate usage of symbolDatabase to reduce code and false negatives
- Avoided unnecessary construction of pattern string
- Only search for class/struct definition before usage
2012-05-24 06:34:59 -07:00
b81eafe0dc
Splitted CheckIO from CheckOther.
2012-05-20 02:57:07 -07:00
bb8342fbb4
fixed misspelled word 'Comparision' --> 'Comparison'
2012-04-26 23:04:55 +02:00
92737578ac
Refactorizations:
...
- removed unused function CheckOther::concatNames
- Replaced one indendation counter by Token::link() in checkother.cpp
- Forward declaration of Settings in threadexecutor.h
2012-04-26 15:29:39 +02:00
5ac7552e4e
New check: Comparision of modulo results that are always true/false.
2012-04-26 15:23:47 +02:00
b0f571b25c
Fixed #3383 : If there is an empty line between subsequent break statements, only issue a message for inconclusive checking
2012-04-05 10:38:29 +02:00
c1fc7a2218
Improved CheckOther::checkComparisonOfBoolWithInt and CheckOther::checkComparisonOfBoolExpressionWithInt:
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- Added support for comparision of bool constant with number constant (-> fixed #1877 ) and integer variable with boolean expression
- Moved a check from checkComparisonOfBoolWithInt to checkComparisonOfBoolExpressionWithInt
- Generalized some patterns
- Made error message more accurate concnerning the "neither 0 nor 1" part.
- Reduced number of Token::Match calls
2012-04-02 15:45:51 +02:00
e6dc901761
Fixed #3574 (false positive: check sign of unsigned variable (type cast))
2012-03-28 18:33:34 +02:00
4f1f6e1824
Improved simplification of calculations:
...
- Use more generic patterns
- Look on operator precedence more consequently
-> Made a TODO test case from a test case that worked previously, because the calculation is simplified so that the problem isn't detected any more.
Changed comment "Coding style checks" to "Checks", because it didn't fit
2012-03-27 21:29:50 +02:00
989ac449e4
Made invalidPointerCast message inconclusive for casting from floating point type* to char* ( Fixed #3639 )
2012-03-25 12:55:39 +02:00
ca6a93816b
Merge pull request #89 from HeisSpiter/master
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Merged two checks to get a better one regarding sizeof
2012-03-25 02:38:04 -07:00
e4d92055e7
Improved sizeofCalculation check:
...
- Bailout on expanded macros for conclusive checking
- Support for more operators
- Removed indendation counter
Improved checkSignOfUnsignedVariable:
- Made the patterns more generic
- Improved verbose error message (-> Fixed #3080 )
2012-03-25 11:32:00 +02:00
2b5ddb7858
Merge the strncmp & malloc sizeof checks into a more generic test that handles several cases where sizeof is misused, or could be misused
2012-03-23 21:47:13 +01:00
ec44967e13
Add a new test to check improper sizeof usage. It's for the moment limited to malloc calls.
2012-03-21 21:13:09 +01:00
4587a1a06c
Fixed recently introduced assertion failure in debug mode
2012-03-15 21:06:24 +01:00
b6057a1148
Improved CheckOther::checkIncorrectLogicOperator:
...
- Added a lot of additional pattern
- Rewrote error messages to make them more understandable and better fitting to the situation. (Fixed #3664 )
- Cleanup in unit tests
Improved message of static string comparision check
2012-03-15 20:38:28 +01:00
6f164de609
Improved static string comparision check: Implemented #3214
...
Fixed false negative on argument count of fnprintf/snprintf when first variable argument is a string. (#3655 )
Uncommented call of virtualDestructorError in getErrorMessages in checkclass.h
Refactorizations:
- Rearranged code in checkother.h to make ordering more consistent and to increase encapsulation of private data
- Replaced some single-token-patterns
2012-03-11 11:01:39 +01:00
1747813a8b
Added check for invalid pointer casts ( #1255 )
...
Detect sign extension problems when variable is a reference (#3637 )
Refactorizations:
- Tokenizer::getFiles returns a reference instead of a pointer, because its guaranteed that no nullpointer is returned
- Remove signed/unsigned in one step for "%type% signed|unsigned"
- Fixed recently introduced compiler warning in symboldatabase.cpp
2012-02-26 11:56:32 +01:00
b1ff900aaa
Some refactorizations
2012-02-18 23:43:51 +01:00
d5c2c7db88
- Moved checkCatchExceptionByValue from CheckOther to CheckExceptionSafety
...
- Fixed false positive: throw outerCatchVar; in inner catch is now correctly handled
- Added eTry and eCatch to Scope::isLocal -> Scopes inside catch are now detected by symbol database
2012-02-02 16:17:42 +01:00
91a01a0a0d
- checkUnsignedDivision checks for variable/variable (inconclusive). General bailout for if-statements.
...
- Make use of recently implemented symboldatabase functions (catch-support, reference-support)
- Other refactorizations
2012-01-28 12:32:28 +01:00
589a2461bd
Fixed ticket #3550 (false positive: (error) Memory pointed to by 'pxpm' is freed twice)
2012-01-24 22:43:44 -08:00
0415444e28
Merge branch 'master' of github.com:danmar/cppcheck
2012-01-19 23:02:33 -08:00
b89adff9fd
Fixed Ticket #3300 (false negative: doublefree of pointer)
2012-01-19 22:59:54 -08:00
461565c50a
Fixed #3517 and #3513
2012-01-15 12:32:02 +01:00
8cae17fda8
Update year to 2012
2012-01-01 01:05:37 +02:00
0205582161
Fixed #3327 (printf with std::string as parameter)
2011-12-18 19:41:21 +01:00
1f438b0505
Fixed #3375 (Improve check: Detect unreachable code)
2011-12-03 11:43:23 +01:00
b538f49a6e
Merge pull request #61 from richq/sameexpr
...
Fix for #3317 - same expression on both side of '&&' false positives
2011-11-29 08:50:02 -08:00
71c8669261
Fixed #3311 , #3313 and #3339 (printf format string false positives)
2011-11-27 07:29:09 +01:00
d28cf42d4c
Fix ticket #3317 (same expression false positives)
...
Add a check for function calls that have no side effects. That means
known const methods and a list including strcmp, strlen, etc.
If the function is not known to be side effect-free then no style
warning is given.
Add test cases for the duplicate expressions.
2011-11-23 21:39:03 +01:00
5b5ea29f23
Mismatching format string parameters. Made check experimental. See tickets #3311 , #3313 and #3339
2011-11-21 07:31:06 +01:00
994f08fdf0
Fixed #886 (new check: wrong value passed to isgraph function)
2011-11-17 16:31:16 +01:00
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
fa076598ad
Fixed #3233 (false positive: (style) Checking if unsigned variable 'i' is less than zero.)
2011-11-06 18:24:37 +01:00
d3b27c40fc
fixed --doc output
2011-11-05 07:45:30 +01:00
0c469bae41
Fixed #3089 (New Check: Detect wrong usage of printf/scanf)
2011-11-05 07:29:53 +01:00
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
90c7db15a0
Add check for comparison of identical string variables
2011-10-28 22:12:51 +02:00
5f4c882b08
minor formatting updates of --doc output
2011-10-27 10:50:40 +02:00
20179673ce
Fixed #934 (new check: missuse of std::cout)
2011-10-22 17:12:52 +02:00
ea02bd905a
Fixed #3225 (Boolean comparison with string literals)
2011-10-18 21:37:03 +02:00
a52b73f9f9
Fix #3208 (Simplify pointer to standard type, C only)
...
The symbol database is unavailable during token simplification
and &data[0] might return something completely different for C++.
Moved code_is_c() from checkOther to Tokenizer.
2011-10-16 08:09:57 +02:00
6f8e42a5af
changed the astyle formatting flags
2011-10-13 20:53:06 +02:00
82366918ff
Fixed #2627 (switch case fall through: redundant strcpy)
2011-10-13 01:27:22 -07:00
849bee8437
[PATCH] Detect suspicious use of semicolon after 'if/for/while'
...
statements if they are followed by a {..} block.
Examples are:
for (int i = 0; i < 10; ++i);
{
printf("i)";
}
or
if (i == 100);
{
die("Wrong argument");
}
This new check is active if you enable inconclusive checks.
2011-10-11 08:41:39 +02:00
fcf360825a
Fixed #2955 (New check: Using && instead of &)
2011-10-10 10:11:17 -07:00
73fb6725e6
Readded CheckOther::bitwiseOnBoolean as inconclusive check
2011-10-06 22:01:48 +02:00
09109f19f8
Removed CheckOther::bitwiseOnBoolean check. The reasons can be seen in my comments in ticket #3062 .
2011-10-05 20:46:07 +02:00
494d3af3d1
Fixed #1877 (Be more strict about int vs. bool, part II)
2011-10-05 20:30:36 +02:00
f29b7f9f08
fix #3062 (false negative: Boolean variable is used in bitwise operation)
2011-09-02 17:19:06 -04:00
2dd93dff75
move unused variable checks from checkother to checkunusedvar
2011-08-19 14:35:25 -04:00
9fbef3ca7b
fix #3011 (new check: when first comparison is true, the 2nd comparison is always true)
2011-08-19 13:28:37 -04:00
2dd1e290eb
fixed false positives for the 'bitwise operator / comparison operator' check
2011-08-19 18:06:28 +02:00
eda9ff6fc5
refactor checkother to move error messages to follow check and rename some error functions to end in Error
2011-08-19 11:53:43 -04:00
40b493e621
Improve check: Clarify condition (using boolean result in bitwise operation)
2011-08-19 13:40:54 +02:00
a7728fef48
New check: warn about such suspicious conditions: '(a & b == c)'
2011-08-19 00:15:20 +02:00
85b2bd21dc
fix #2968 (new check: testing if unsigned variable is less than 0)
2011-08-06 19:23:09 -04:00
dc629b4c39
Fixed 'possible null pointer dereference' warning messages
2011-07-28 08:12:21 +02:00
d2c0e5e7e6
Fixed #2821 (New Check : bool pointer null truth assignment)
2011-07-28 07:28:24 +02:00
430d22032d
fix #2827 condition always false or true)
2011-07-16 22:06:23 -04:00
997a3652d2
Fixed #2822 (New check: Duplicate break statements in switch)
2011-07-14 17:12:56 -07:00
7826b5e22d
add support for detecting unused function variables of type class or struct
2011-06-30 21:58:11 -04:00
287840e6bc
fix #2786
2011-05-25 01:45:58 +08:00
46645ab327
Fixed #2722 (new check: statement that is always true (strcmp))
2011-04-25 22:45:27 -07:00
56212370d1
add check for same expression on both sides of an operator (part of #2700 )
2011-04-10 10:25:02 -04:00
66de41b313
partial fix for #2700 (common logic or cut and paste errors)
2011-04-09 17:05:27 -04:00
7e403ae210
fix #311 (add detection of duplicated if else-cases)
2011-04-09 15:14:01 -04:00
63acd9bb3e
Clarify calculation: Added warnings for << and >>
2011-04-03 22:12:22 +02:00
855b01cd5a
Clarify precedence 'a*b?c:d' : warn for addition, subtraction and division also. tried to clarify the message more
2011-04-02 11:43:20 +02:00
0e4cf7a2d6
Spell checks
2011-03-30 16:44:16 +02:00
3e1df1b463
Clarify condition: re-enabled check
2011-03-13 12:16:55 +01:00
e94ebd829d
suspicious condition: commented out the check temporarily - there are some false positives I'll need to fix
2011-03-09 22:29:50 +01:00
db48158b28
Suspicious condition: Added new check for conditions that contains assignment+comparison
2011-03-09 22:20:14 +01:00
a532a9690e
full implementation of switch case fall through
2011-03-05 00:45:57 +13:00
93ea774484
initial simplistic implementation of switchCaseFallThrough
2011-03-05 00:45:57 +13:00
e1b2569b81
Fixed #432 (New check: wrong usage of ! operator in conditions)
2011-02-27 12:30:22 -08:00
f5ed52b84b
fix #2569 check postfix increment on boolean
2011-02-11 23:38:23 +01:00
aeae5a867d
Fixed #2550 (Bad substr/strncmp comparison)
2011-02-08 19:49:29 +01:00
d06fde77ff
Fixed #2531 (False positive: Redudant assignment to itself)
2011-02-04 20:55:38 +01:00
be195a72c9
initialise Check::_name in constructor rather than relying on virtual Check::name()
2011-02-02 22:58:25 +13:00
a596a7a8fe
Fixed #2494 (New check: clarify calculation when using ?: operator)
2011-01-24 21:40:49 +01:00
27dce075e0
Fixed #155 (check size of a variable whose type is a sized array)
2011-01-22 19:21:56 +01:00
94ebb24d3d
Optimising: about 5% improvement with Visual Studio executable
2011-01-15 20:55:51 +01:00
226b605774
Change year 2010 -> 2011 in license texts.
2011-01-09 21:33:36 +02:00
6ec4497919
[PATCH] Check for calls to memset() where 0 bytes are to be filled
...
Inspired by Silvio Cesare's work
2011-01-06 11:31:58 +01:00
d11b5163b7
Fixed #2382 (Catching exceptions by value instead of reference)
2010-12-31 03:01:38 -08:00
38e7209d26
Fixed #2373 (Using XML2 in --errorlist output)
2010-12-29 12:43:29 +01:00
215cb5ac8d
Fixed #2162 (false positive: Mutual exclusion over ||)
2010-11-21 00:06:43 -08:00
fd64a7e683
Mutual exclusion: Disable this check until #2162 is fixed.
2010-11-20 07:43:07 +01:00
36d80d6eaa
Fixed #2058 (Warn for unused variable when only doing malloc/free)
2010-11-14 17:37:36 -08:00
14803643ca
empty string test: Removed this check
2010-11-03 17:56:14 +01:00
bc283d8b99
Uninitialized variables: Broke out the checking into separate file
2010-10-31 12:31:11 +01:00
df8a93bf97
Null pointers: Broke out the checking into separate file
2010-10-31 11:51:25 +01:00
1ef09147f3
CheckOther: updated CheckOther::getErrorMessages
2010-10-31 10:07:35 +01:00
995e39200b
Fixed #2130 (Invalid possible NULL pointer dereference, etc.)
2010-10-27 20:20:10 +02:00
bdd6d6d53d
null pointer: use simplified token list in the 'check and deref' checking
2010-10-25 21:05:43 +02:00
026514db1a
Fixed #2127 (null pointer dereference after condition (SRD nr 522))
2010-10-25 19:43:54 +02:00
26afb04dc5
Fixed #2105 (Incorrect operator: mutual exclusion over ||)
2010-10-24 18:14:21 -07:00
1a4e3dcc44
increment check
2010-10-12 19:54:39 +02:00
d9967d4fd2
Fixed #2079 (detect side effects in assert)
2010-10-10 13:05:06 -07:00
4e11e71a21
Fixed 2072 (object destroyed immediately: add --doc info)
2010-10-04 08:54:19 +11:00
0017655f55
Added test for functor false-positive [passing]
...
Also removed typedef's following danmar's review and renamed isClassresults -> isClassResults to make more clear.
2010-10-02 18:45:24 +10:00
6e0ef3eda2
Fixed #1132 (Detection of misused scope objects in functions)
...
Emits error in the form:
[useless_lock.cpp:18]: (error) instance of "Lock" object destroyed immediately
...if an instance of a class or struct is unnamed and therefore destroyed
straight after creation.
Only checks for misused scope objects within functions.
Optimised isIdentifierObjectType() by memoizing.
2010-10-02 14:22:26 +10:00
50c2fa9ab0
Revert "Fixed #1132 (Detection of misused scope objects)"
...
This reverts commit c6acdccfa0
2010-10-01 20:52:16 +10:00
c6acdccfa0
Fixed #1132 (Detection of misused scope objects)
...
Emits error in the form:
[useless_lock.cpp:18]: (error) instance of "Lock" object destroyed immediately
...if an instance of a class or struct is unnamed and therefore destroyed
straight after creation.
Removed "internal error" from token.cpp, since in this case varid would be NULL.
2010-10-01 20:30:21 +10:00
f843678a07
Redundant conditions: some refactorings
...
* removed the 'redundant null pointer' check. sometimes it's unsafe to delete NULL pointer. and this check doesn't point out errors anyway.
* moved the 'redundant condition' check for set::remove. Moved it to CheckStl.
2010-09-16 18:49:23 +02:00
cfbc06c8b6
removed 'empty catch block' check. to avoid false positives we'll need to check if it is bad with an empty catch block (dead pointer/undefined behaviour/etc)
2010-09-05 13:27:58 +02:00
72916caee6
Reverted 7398453cb0
2010-08-15 21:25:14 +02:00
7398453cb0
Refactoring of obsolete functions checks. Ticket: #1940
2010-08-15 21:22:33 +02:00
c8087d3389
Fixed #162 (Initialisation of a variable by itself)
2010-08-14 21:34:04 -07:00
5846630fa9
Added scanf check. Modified patch submitted by Eric Sesterhenn
2010-08-14 15:15:12 +02:00
c395e51389
New check: look for calculation inside sizeof
2010-08-06 22:57:10 +02:00
faa713e7b5
gcc: Fixed some compiler warnings when using -Wsign-conversion. Ticket: #1487
2010-08-06 19:40:54 +02:00
5ea28ccbba
Fixed #157 (Forgetting to put a break in a switch statement)
2010-06-30 00:10:30 -07:00
efefceabae
Fixed #920 (new style check: find empty catch blocks)
2010-06-14 23:45:46 -07:00
b5d0955d11
doxygen: fixed error messages given by doxygen
2010-06-14 07:54:41 +02:00
62093d764d
Fixed Visual Studio 2010 warning
2010-05-30 10:44:03 +02:00
88e9a4ade6
Fixed #1704 (false negative: null pointer dereference)
2010-05-26 19:16:42 +02:00
75c9355e9a
Added some multipass checking for the uninitialized variables. It is still experimental. You can activate it with the '--test-2-pass' switch. Some more refactorings are needed to make it truly usable, the main thing is to make it thread safe.
2010-05-21 19:35:18 +02:00
6edb2e77b4
Refactoring: Removed Severity::possibleStyle
2010-05-16 14:43:42 +02:00
972046c4bd
Added test CheckOther::sizeofsizeof. Inspired by #1682
2010-05-15 14:06:45 +02:00
21b7eb61f5
Fixed #959 : (new check: wrong usage of fflush()) Simplified and set severity to error
2010-05-06 23:08:10 -07:00
707d27f3d8
Fixed #959 (new check: wrong usage of fflush())
2010-05-03 23:14:45 -07:00
9430089532
Fixed #1626 ('Unusual pointer arithmetic' false positive)
2010-04-26 21:43:01 +02:00
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