ef6e381d47
Improved bitwise on boolean check to make it working on more code patterns
...
Refactorizations in checkother.cpp:
- Make use of symboldabase instead of: indentation counters, manual detection of variable declarations
- Removed some indexing variables to reduce calls to tokAt and the numbers given to this function
- Use tok->nextArgument() to jump to a specific argument
2012-03-03 21:14:20 +01:00
1ef99e2f21
Improved checkautovariables:
...
- Added support for checking a few more code patterns
- Simplified code by using more information from the symboldatabase
- Moved redundant part of c_str-check to checkstl
Two fixes according to output of pvs studio in testsimplifytokens.cpp
2012-03-01 18:38:20 +01:00
2ac907b40a
fixed compiler warning (gcc-4.6.1)
2012-02-27 14:13:34 +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
9d75641ef8
Fixed #3598 (false positive: (error) Memory pointed to by 'a' is freed twice.)
2012-02-16 21:03:38 -08:00
8f827aa65f
FIxed #3581 (double free false positive when exception rethrown)
2012-02-04 11:24:40 -08:00
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
22c1ce8a68
Fixes for #3480 and #3568 .
2012-01-31 15:49:34 +01:00
bb703f4d0b
Fixed: (warning) Found simple pattern inside Token::Match() call.
2012-01-28 20:31:12 +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
36479499e7
- Solved FIXME: Made detection of code that is no pointer-dereference more robust, uncommented code (checknullpointer.cpp)
...
- Removed more indendation level counters
- Make use of symbol database more often
- Other refactorizations
2012-01-21 19:55:32 +01:00
96ae010e48
- Correctly set Scope::function variable in symboldatabase
...
- Refactorizations
- Fixed some cppcheck warnings
2012-01-21 10:08:09 +01:00
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
525e7fba20
Fixed #3490 (False positive: sscanf with %c)
2012-01-18 23:57:08 +01:00
7607e4c68d
Fixed #3519 (Wrong line number in warning charBitOpError)
2012-01-18 13:09:46 +01:00
c294b15360
Removed more indendation counters.
2012-01-15 12:31:49 +01:00
dd18f595b1
Fix #3516 (inaccurate warning: "An unsigned variable will always be positive" (unsigned n; if (n >=0);))
...
http://sourceforge.net/apps/trac/cppcheck/ticket/3516
2012-01-14 12:50:09 +02:00
65ce55e675
Fixed #3472 (false positive: (error) Passing value 0 to log() leads to undefined result)
2012-01-08 12:07:25 +01:00
eabdc9082e
Fixed false positives related to %*[] in scanf format string ( #3468 )
2012-01-04 11:22:42 +01:00
621d43e9e4
Fixed #3461 : Support for %m* on scanf-functions
2012-01-02 14:05:58 +01:00
8cae17fda8
Update year to 2012
2012-01-01 01:05:37 +02:00
3d0c1a3301
Fix #3457 (Statement following goto can be executed)
...
http://sourceforge.net/apps/trac/cppcheck/ticket/3457
2012-01-01 00:11:03 +02:00
65b58bcb99
Partial fix to #3452 (ErrorLogger: complain/raise assertion when error message has extra newlines etc)
...
http://sourceforge.net/apps/trac/cppcheck/ticket/3452
Add assert for newlines.
2011-12-30 01:22:16 +02:00
dd8316474a
Fixed #3335 (new check: warn about potential missuse of isgraph-like functions)
2011-12-29 08:08:37 +01:00
90e1a397a2
Refactoring: Remove duplicate function from tokenizer: code_is_c() -> isC()
2011-12-29 00:36:16 +02:00
bbac4f1faf
Fix ticket #3451 (A (style) type warning witout message text).
2011-12-28 17:15:04 +01:00
8e94e2261b
Comparing bool with int: Fixed false positives
2011-12-23 19:11:51 +01:00
8213a15b2a
improving checkSizeofForStrncmpSize
2011-12-23 18:11:34 +01:00
e9d697b636
Fixed #3419 (false positive: (style) Same expression on both sides of '&'.)
2011-12-23 16:08:53 +01:00
409364747c
Fixed #3441 (segmentation fault of cppcheck (%: return ; ()))
2011-12-23 12:46:59 +01:00
df8504f0ea
Clarify calculation: Fixed false positives when there are various function calls
2011-12-23 12:13:39 +01:00
fd0d9c8694
CheckOther: Added line break to make the code more readable
2011-12-20 20:54:14 +01:00
f8181df340
Fixed #3410 (Comparing bool against bool produces false positive)
2011-12-20 06:38:05 +01:00
6dc2a6e7ab
Refactorized CheckUnusedVar
2011-12-18 20:15:41 +01:00
0205582161
Fixed #3327 (printf with std::string as parameter)
2011-12-18 19:41:21 +01:00
f306246c7f
Improved support for references and pointers in SymbolDatabase
...
Replaced several isPointer functions by Variable::isPointer function
Refactorizations & Make use of symbolDatabase more often
2011-12-17 19:04:03 +01:00
4abee3a345
Refactorings. Use reportError instead of reportInconclusiveError.
2011-12-17 11:39:20 +01:00
a311904a0f
Patch that fixes some bailouts for isEnabled('style') in both directions. Improved checkSizeofForNumericParameter's error message, made it 'warning', made it non-experimental.
2011-12-16 19:21:14 +01:00
c9f5117cf5
Fixed #3407 (False positive: (inconclusive) Found duplicate branches for if and else. (inline assembler))
2011-12-13 21:42:38 +01:00
91a0a071d0
Take symbol database into use or improve its usage in some checks.
2011-12-09 23:28:10 +02:00
97eecb78a7
Fixed #3381 (false positive: (style) Statements following return, break, continue, goto or throw will never be executed)
2011-12-07 18:20:52 +01:00
501d7ccb2d
Optimize checkother.cpp by taking symbolDatabase into use.
2011-12-04 20:49:01 +02:00
1f438b0505
Fixed #3375 (Improve check: Detect unreachable code)
2011-12-03 11:43:23 +01:00
69d3d4a17d
Fixed gcc compiler warnings
2011-12-03 09:57:56 +01:00
9a84c5845a
Fixed #3373 (False posititive: incorrect %* handling in sscanf)
2011-12-02 17:09:32 +01:00
d2c8b9be56
Fix possible null pointer dereference
2011-12-01 19:57:04 +01:00
b2ea78543b
Fix false positive with non-const function calls
2011-12-01 19:57:04 +01:00
a880469c5a
Refactor the same expression check
...
Work out if a function is inconclusive when creating the entry in the
Expressions class instead of when checking the counts at the end. Store
the result in a new bool flag in the ExpressionTokens helper struct.
The pointer to symbol database and ref to list of const functions are
temporarily stored in the Expressions helper class to avoid passing
them in too on every endExpr(tok) call.
Use a const reference to ExpressionTokens in the check loop to avoid
repeating the it->second several times, which clarifies what that code
does.
2011-12-01 19:57:04 +01:00
5017646488
Coding fixes and refactorings
2011-12-01 19:43:51 +01:00
93b21c6cc5
Fixed Visual Studio compiler warnings
2011-12-01 18:27:25 +01:00
98480bf504
Fixed #3354 (Incorrect both sides of '||' expression match when using increment in expression.)
2011-12-01 17:46:33 +01:00
fddfd16758
checkDuplicateExpressions: validate tokens instead of string. Fix for my previous commit.
2011-12-01 17:43:29 +01:00
31b576de3b
Fixed #3334 (Test for same expression on both sides of '&' reports false positive)
2011-12-01 17:07:55 +01:00
767413adad
1)internal check found a 'findmatch' with simple string argument;
...
2)Style: uniform 'while (...)' when inside it there's an assignment;
3)Replace '0' with 'NULL' where there's comparison with a pointer.
2011-12-01 12:04:47 +01:00
ee3e10ea97
Fixed #3364 (Crash in printf parsing)
2011-11-30 20:23:29 +01:00
0d48cd390b
astyle formatting
2011-11-29 20:44:23 +01:00
5c90c69ccf
Fixed ticket #3366 (Build breakage)
2011-11-29 19:46:36 +01:00
b61c01c6a4
Fixed #3356 (false positive: (warning) Comparison of a boolean with integer that is neither 1 nor 0)
2011-11-29 18:14:57 +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
522da8d258
sizeof for numeric constant : disabled check. see ticket #3179
2011-11-27 18:50:21 +01:00
71c8669261
Fixed #3311 , #3313 and #3339 (printf format string false positives)
2011-11-27 07:29:09 +01:00
6b1594244e
code cleanups and refactorings
2011-11-26 21:15:16 +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
511ac0ab1f
Remove false positives for nested logic
2011-11-23 21:39:03 +01:00
2e08c8c5b1
DJGPP: Fixed a few compiler errors by using std::size_t instead of size_t
2011-11-22 21:14:14 +01:00
5b5ea29f23
Mismatching format string parameters. Made check experimental. See tickets #3311 , #3313 and #3339
2011-11-21 07:31:06 +01:00
91713ffe84
Fix false positives for %[ in scanf
2011-11-20 16:48:54 +01:00
a32b05197d
Change every 'tokAt(1)' to 'next()' and every 'tokAt(-1)' to 'previous()'.
...
Added a safety check to ensure that a 'previous()' call doesn't crash (not sure if it's needed or not).
2011-11-20 15:59:37 +01:00
11dd3c09ce
Change every 'tokAt(1)->' to 'next()->' because 'tokAt(1) == 0' is equivalent to 'next() == 0', hence the equivalent cppcheck crash.
2011-11-20 15:09:57 +01:00
42e369a4b4
Change every 'tokAt(..)->link()' to 'linkAt(..)'.
2011-11-20 14:24:27 +01:00
994f08fdf0
Fixed #886 (new check: wrong value passed to isgraph function)
2011-11-17 16:31:16 +01:00
2c64d299ca
Change every 'tokAt(...)->str()' to 'strAt(...)'.
2011-11-13 13:10:59 +01:00
c010ca33a5
Run astyle
2011-11-09 20:34:58 +01:00
b7cc9779c4
Merge pull request #59 from richq/sameexpr
...
Improved same expression check for ticket #3274
2011-11-08 23:56:36 -08:00
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
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
d5664dd6cf
Improved %or% and & checks
2011-11-08 21:56:54 +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
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
f092779a4d
Fixed #3282 (Invalid report that an array index is of type char.)
2011-11-06 11:26:28 +01:00
e11c1f7975
Fixed #3265 (false positive: comparison of bool with nonzero integer)
2011-11-06 08:21:34 +01:00
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
d4a8184339
Fixed #3251 (Redundant code: Found a statement that begins with numeric constant)
2011-11-05 20:28:52 +01:00
a3f2c1e651
Improve for same expression on both sides of operator
2011-11-05 15:46:11 +01:00
0c469bae41
Fixed #3089 (New Check: Detect wrong usage of printf/scanf)
2011-11-05 07:29:53 +01:00
4295439e53
Fixed ticket #3269 (Regression, I think it's somehow related to symbol database)
2011-10-31 15:05:52 +01:00
ba5909ef1d
General code tweaking, nothing strange.
2011-10-31 02:24:59 +01:00
4fc7e86d7d
Fixed: with checkConst and checkVariableScope wanted still required "information" settings instead of "style".
2011-10-30 10:58:15 +01:00
3c509589b5
use reportInconclusiveError instead of reportError if checking is inconclusive
2011-10-29 15:16:27 +02:00
f04210ad9f
updated comment. removed a inconclusive condition, I don't think it's needed.
2011-10-29 12:52:46 +02:00
6c02de151f
strncmp sizeof: tweaked the check.
2011-10-29 12:27:19 +02:00
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
45d0709ed5
Only run sizeof(char*) check if inconclusive is set
2011-10-29 11:59:24 +02:00
c2d7824130
Move string comparison out of the report function
2011-10-29 11:52:19 +02:00
dd719b41bf
Definitely check correctly 'sizeof %num%' when '%num%' has '-' sign.
2011-10-29 00:11:38 +02:00
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
4ba6ac7332
Add strncmp to the list of static string comparison functions
2011-10-28 22:12:51 +02:00
434fb933a8
Implement Token::findsimplematch und use it for simple patterns
2011-10-27 15:59:22 +02:00
54adb910ec
Use Token::simpleMatch instead of Token::Match for simple patterns
2011-10-27 15:59:22 +02:00
de71c41379
Fixed Ticket 2144 (false negatives: Old Style Pointer Cast apply only on .cpp files)
2011-10-26 21:17:27 +02:00
3568b5a841
Improved memset with 0 bytes check. TODO done (unit test).
...
Patch from: PKEuS <philipp.kloke@web.de>
2011-10-22 23:34:10 +03:00
91c6608175
Improve fix of #934 (be careful of macros code).
2011-10-22 20:43:42 +02:00
20179673ce
Fixed #934 (new check: missuse of std::cout)
2011-10-22 17:12:52 +02:00
ccf087d2ea
checkMathFunctions: Refactoring the check
2011-10-22 12:31:47 +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
af6a6f9c2d
run astyle
2011-10-12 09:08:54 -04:00
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
5f9b916dcc
Fixed #2115 (new check: endless loop (unsigned comparison that is always true))
2011-10-09 20:35:46 +02:00
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
3cfe7ca1a7
Move "information" errors to "style" errors.
...
"information" severity is documented in lib/errorlogger.h as:
Checking information.
Information message about the checking (process) itself. These
messages inform about header files not found etc issues that are
not errors in the code but something user needs to know.
It IS NOT for errors in the code. All the current "information"-
severity errors fit nicely into description of the "style"-
severity.
We definitely need to separate processing information and actual
errors in the code. It is highly confusing for users to mix these
two different things. Hence all current "information" code error
messages are moved to "style" category.
Ticket: #3165 (Stop misusing the 'information' error severity!)
2011-10-05 20:44:00 +03:00
2d717d77cd
reduce false negatives for checking for CheckOther::checkSignOfUnsignedVariable()
2011-09-26 21:24:34 -04:00
735ff11469
fix #3110 (false positve: style) Boolean result is used in bitwise operation. Clarify expression with parentheses)
2011-09-12 07:32:55 -04:00
55230baf78
Fixed #3086 (false positive: Boolean result is used in bitwise operation.)
2011-09-11 09:46:01 +02:00
2f62d180fe
Fixed #1740 (Undefined Behavior: Divide by zero)
2011-09-10 16:12:53 +02:00
074ad10a30
fix #195 Unusual shift operation - check this kind of code
...
return x >> ! y ? 8 : 2;
2011-09-06 22:37:19 +02:00
b27bbea44a
really fix #3079 (Spelling error in unsigned variable check 'never alwayw')
2011-09-05 09:48:59 -04:00
2250a2dfc3
fix #3079 (Spelling error in unsigned variable check 'never alwayw')
2011-09-05 09:04:27 -04:00
5c7ed46e0c
Following the discussion XX, replace the keyword C99 '_Bool' with the 'bool' keyword in the process of tokenization\nSee f29b7f9f08
2011-09-03 23:15:33 +02:00
d23c58d387
enable: break out 'performance' and 'portability' from the 'style' id. Ticket: #3074
2011-09-03 15:30:30 +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
a735790e77
using boolean result in bitwise operation. fix false positive for '.. != (char *) &x'
2011-08-19 18:55:20 +02:00
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
314d5f1e79
fixed false positive for 'using bitwise operation on boolean result'
2011-08-19 17:07:26 +02:00
c107fdd2d4
Fixed #3018 (false positive: (style) Suspicious condition (assignment+comparison), it can be clarified with parentheses)
2011-08-19 13:54:06 +02:00
40b493e621
Improve check: Clarify condition (using boolean result in bitwise operation)
2011-08-19 13:40:54 +02:00
0d7c80ef21
improved comment of previous commit
2011-08-19 07:28:15 +02:00
4606251ce8
Fixed #3001 (False Positive: Redundant assignment to itself)
2011-08-19 07:23:11 +02:00
e5ff920ea9
Suspicious condition: Better handling when rhs is non-numeric
2011-08-19 00:56:15 +02:00
a7728fef48
New check: warn about such suspicious conditions: '(a & b == c)'
2011-08-19 00:15:20 +02:00
4f962acf16
Fixed #3009 (Using numeric constants in kernel space code)
2011-08-16 20:16:33 +02:00
ad45ba718c
convert CheckOther::checkCharVariable() to use symbol database
2011-08-14 10:39:45 -04:00
cd2c0fd9c8
convert CheckOther::checkSizeofForNumericParameter() to use the symbol database
2011-08-14 10:21:07 -04:00
741eabba16
convert CheckOther::checkIncrementBoolean() to use the symbol database
2011-08-14 10:16:39 -04:00
003956e42e
Fixed #2982 (false positive: using char type as array index (using string as key))
2011-08-09 17:03:22 +02:00
8a6a999f09
Fixed #2979 (Improve message: using char as array index)
2011-08-08 19:35:11 +02:00
cfcfa3f000
Use "enabled" list for the style checking.
...
Settings-class currently enables style checking via dedicated
boolean attribute. All other CLI's enable-options are handled
through the enable-list. This commit moves style-check enabling
to use the enable-list.
Main advantage is the consistency how options are handled/stored
in the Settings class. Which also unifies using them for the other
code. You need to enable certain type of checks? Use the
addEnabled()-method. You want to check if certain type of checks
are enabled? Use the isEnabled()-method.
2011-08-07 10:28:52 +03:00
85b2bd21dc
fix #2968 (new check: testing if unsigned variable is less than 0)
2011-08-06 19:23:09 -04:00
PKEuS
Ettl Martin
Zachary Blair
Edoardo Prezioso
Daniel Marjamäki
Stefan Weil
Reijo Tomperi
Erik Lax
Marek Zmysłowski
Daniel Marjamäki
Richard Quirk
Thomas Jarosch
seb777
Robert Reif
Kimmo Varis