165cce5dcc
template simplifier: fix some crashes ( #1772 )
...
Fix some crashes caused by the template simplifier generating bad code
for some instantiations.
Sorry but there are no tests because I was unable to get C-Reduce to
create examples that were not garbage code.
2019-04-01 08:04:47 +02:00
0368648aff
debug warnings; report missing type for auto tokens
2019-03-31 17:38:00 +02:00
fbc769266c
Fixed #9060 (TemplateSimplifier::templateParameters : var <...>)
2019-03-31 16:29:28 +02:00
0efddc4010
astyle formatting
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[ci skip]
2019-03-31 16:20:06 +02:00
29a5404d1e
Incomplete statement: Fix FP for 'ar & x'
2019-03-31 11:50:57 +02:00
73433c2961
Syntax error: Clarify a syntax error in audacity
2019-03-31 10:46:59 +02:00
b30d463baf
Fix wrong syntax error
2019-03-31 09:34:19 +02:00
c5807459f9
CheckBufferOverrun: Add check for pointer arithmetics
2019-03-31 09:00:52 +02:00
51b64191e5
Fixed slow checking in FwdAnalysis
...
Credit to OSS-Fuzz for reporting this!
2019-03-30 14:22:24 +01:00
b0c58f2b10
Fixed #9000 (SymbolDatabase: lambda scope)
2019-03-30 10:32:36 +01:00
fe285f1df3
Fixed #9055 (SymbolDatabase: second argument is missing in the symbol database)
2019-03-30 07:44:36 +01:00
d88ee2d6a2
Fixed #9070 (Segmentation fault in TemplateSimplifier::simplifyTemplateAliases (scram package)) ( #1771 )
...
This only fixes the crash. It does not fix the underlying problem of
template using with templates of templates causing the use of deleted
instantiations.
2019-03-30 06:53:17 +01:00
d233b56d58
Fix #9079 (make checkcfg crashes on Linux) ( #1769 )
...
temp.bufferSizeArg2 was not initialized when only bufferSizeArg1
was specified or the value was out of range. But in valueflow.cpp in
valueFlowDynamicBufferSize() it was used as if it is always initialized
and has a sane value (greater than 0).
2019-03-30 05:58:23 +01:00
b5a285319c
Fixed #9073 (Segmentation fault in Token::isUnaryOp() with ode)
2019-03-29 19:37:23 +01:00
54bea2847a
STL: Better out of bounds checking for empty containers when index is unknown
2019-03-29 15:20:17 +01:00
3c30d274a0
Clarify STL out of bounds warning message
2019-03-29 11:13:25 +01:00
e88a0c00c1
Fixed #9039 (STL: array index out of bounds: str.begin() + 1)
2019-03-28 12:49:52 +01:00
22f01f035c
Fixed #9042 (Another `using BOOL` type breach) ( #1765 )
2019-03-27 21:42:50 +01:00
0f6a90c595
Fixed #9069 (crash on invalid code: ' x= y{ } name5 ')
...
Credit to OSS-Fuzz for reporting this!
2019-03-27 18:17:11 +01:00
4a45655bc2
astyle formatting
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[ci skip]
2019-03-27 18:15:12 +01:00
574b77cf1f
Fixed: FP return reference to thread_local variable ( #1758 )
2019-03-27 12:22:53 +01:00
88dc74929a
Add defines set by compiler options when using compilation database ( #1763 )
...
* Add defines set by compiler options when using compilation database
sets __cplusplus and __STDC_VERSION__ based on -std and the defines for -municode, -fpie, -fPIE, -fpic and -fPIC
* Fixed merge
2019-03-27 10:23:04 +01:00
c77f31319d
Fix crash when checking re2c textfile
2019-03-26 20:51:41 +01:00
7c6f21a158
astyle formatting
2019-03-26 20:51:04 +01:00
c262aeffdd
Fixed #9068 (crash on invalid code)
2019-03-26 19:57:32 +01:00
ce11778a20
fixed parsing of -std= in compilation database
2019-03-26 19:02:08 +01:00
29815b2dd8
Fix #8922 (SIGSEGV below exprDependsOnThis - stack overflow?) ( #1761 )
...
This limits the recursion depth as a last line of defense to avoid stack
overflows when there are really huge arrays.
See https://trac.cppcheck.net/ticket/8922
2019-03-26 18:57:01 +01:00
15676612c0
Fixed #9034 (crash on reading invalid code: '> typedef')
2019-03-26 16:14:24 +01:00
5b72e1f568
Fixed #9040 (Type alias 'BOOL' declared with 'using' keyword breaks type detection) ( #1759 )
...
Moved simplifyUsing from TemplateSimplifier to Tokenizer.
2019-03-26 07:09:56 +01:00
49e2f9d551
Fixed #9063 (Crash on invalid code: x='0' ++ '0' ( return)[ ];)
2019-03-25 15:29:23 +01:00
10fcf731d9
Fixed #9021 (template simplifier: crash in simplifyCalculations) ( #1757 )
2019-03-25 14:56:51 +01:00
b6faa11fbf
Fixed #9056 ("using namespace" inside namespace causes "SymbolDatabase bailout;) ( #1753 )
...
Fixed the bailout warning and one of the varid bugs.
The trailing return type still has a varid.
2019-03-24 17:31:34 +01:00
7995b2fb86
getArguments: Avoid too deep recursion in array initialization
2019-03-24 11:51:28 +01:00
e0f1418228
Fixed #9034 (Tokenizer::setVarId: function call parameter is not variable declaration)
2019-03-24 07:06:21 +01:00
18aa968a7a
Astyle formatting
2019-03-23 19:03:57 +01:00
5126e4b1af
Try to fix Visual Studio compiler error
2019-03-23 19:02:05 +01:00
418eb43d45
Fixed #9032 (False-positive detection of reassigned value before used for pointer parameter)
2019-03-23 19:01:02 +01:00
d82c792c1b
astyle formatting
2019-03-23 19:00:03 +01:00
a9082c902a
Fixed #9058 (crash on invalid code in FwdAnalysis::checkRecursive)
2019-03-23 18:27:41 +01:00
d6b806c592
CheckBufferOverrun: Better CTU checking when variable address is passed
2019-03-23 15:57:17 +01:00
d27a4ad82e
CheckBufferOverrun: Fix ctu checking
2019-03-23 15:26:13 +01:00
9653760547
CheckBufferOverrun: Improved CTU analysis for array
2019-03-23 11:20:35 +01:00
40af889df0
Fixed #9053 (simplifyTypedef: wrong simplification of '(const d)' when 'd' is a array) ( #1751 )
...
* Fixed #9053 (simplifyTypedef: wrong simplification of '(const d)' when 'd' is a array)
* fix whitespace
2019-03-23 10:45:38 +01:00
7c7ee66cf9
Fix crash in TemplateSimplifier::TokenAndName::TokenAndName in case of template constexpr ( #1748 )
...
This is not propper solution. This change just eliminates crash and logs error.
https://trac.cppcheck.net/ticket/9046
2019-03-23 10:42:41 +01:00
a135683d2f
Refactoring; Renamed CWE786 and CWE788
2019-03-23 08:41:20 +01:00
15fc9a622d
CheckBufferOverrun: Add CTU analysis
2019-03-23 08:36:10 +01:00
91138578cc
Fix 9052: Crash: SIGSEGV in Token::previous (this=0x0) while checking mariadb-10.0
2019-03-22 01:56:09 +01:00
55433fce40
Library: added bufferSize parameters
2019-03-20 19:26:57 +01:00
14528bcf25
Library: allowed values for the buffer-size attribute: malloc/calloc/strdup
2019-03-20 06:46:55 +01:00
031362ae01
CheckBufferOverrun: Fix false positive
2019-03-19 21:07:08 +01:00
6cbe818f1a
Fix uninitialized variable usage
2019-03-19 13:17:27 +01:00
a0e58f0039
Revert "Revert "CheckBufferOverrun: Handle multidimensional arrays""
...
This reverts commit 9d1755f449
2019-03-19 13:16:22 +01:00
9d1755f449
Revert "CheckBufferOverrun: Handle multidimensional arrays"
...
This reverts commit e98a4a6f14
2019-03-19 13:13:29 +01:00
e98a4a6f14
CheckBufferOverrun: Handle multidimensional arrays
2019-03-19 09:29:32 +01:00
774464eabb
Fix issue 8996: False positive duplicateCondition
...
This fixes issue 8996 by improving the alias checking by using lifetime analysis. It also extends the lifetime checker to handle constructors and initializer lists for containers and arrays.
2019-03-19 06:25:10 +01:00
794f65bac1
Handle prefixed strings and characters in Token ( #1742 )
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This makes it possible to call getStrLength() and similar functions
before the tokenizer is called.
2019-03-18 06:18:25 +01:00
b53a2e5dc4
CheckBufferOverrun: restore minsize code
2019-03-17 20:34:49 +01:00
03f8535c71
Better multiline warning when there is buffer overflow
2019-03-17 20:12:02 +01:00
3c85d8a8ac
ValueFlow: Better info for buffer size values
2019-03-17 19:02:36 +01:00
19e9e42dd7
Library: Enhance minsize configuration and allow simple values. ( #1736 )
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Some POSIX and Windows functions require buffers of at least some
specific size. This is now possible to configure via for example this
minsize configuration: `<minsize type="value" value="26"/>`.
The range for valid buffer size values is 1 to LLONG_MAX
(9223372036854775807)
2019-03-17 14:22:26 +01:00
0771929518
Buffer overflow: Handling of dynamically allocated buffer
2019-03-17 13:40:56 +01:00
92f4113b59
Array index: Checking array index out of bounds for dynamic buffers
2019-03-17 13:09:15 +01:00
18668a52b9
Library: Added buffer-size attribute for <alloc>
2019-03-17 10:55:15 +01:00
a3257349b9
astyle formatting
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[ci skip]
2019-03-17 10:50:06 +01:00
c7155a8e08
Removed '--experimental-fast' flag
2019-03-17 08:19:56 +01:00
b0c92c1ac1
CheckNullPointer: Use library instead of hardcoding
2019-03-17 07:37:38 +01:00
87fe5c060e
Refactoring of Null Pointer Checker
2019-03-16 21:21:30 +01:00
d0c1632b51
Fix CheckBufferOverrun::array_index_12 when compiling with VS
2019-03-16 19:41:13 +01:00
3dc34f1515
Disable all simplified checks
2019-03-16 09:17:50 +01:00
0e88a17aca
CheckInternal: Use 'normal' checking
2019-03-16 08:51:33 +01:00
f40a80c349
Use 'normal' checking instead of 'simplified'
2019-03-16 07:19:48 +01:00
a2a216bbe3
SymbolDatabase: Improved handling of 'normal' non simplified token list
2019-03-15 19:00:42 +01:00
92485245ce
Restore severity for 'autoVariables'
2019-03-15 15:13:11 +01:00
08d41ab8af
Load std.cfg before all other libraries ( #1740 )
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- CLI: Save the libraries that should be loaded to a list and load them
after the std.cfg has been loaded.
- GUI: Load std.cfg (and windows.cfg / posix.cfg when applicable) before
setting other options and loading the other libraries.
In the project-file-dialog the std.cfg is searched first. If some
other library fails to load is is retried with first loading std.cfg.
- boost.cfg: Enable containers that depend on std containers.
2019-03-15 06:59:37 +01:00
3615eac347
Move useStlAlgorithm to normal checking ( #1741 )
2019-03-15 06:15:56 +01:00
a1ade2dd7d
Refactoring: Use range for
2019-03-14 19:57:58 +01:00
56c47fc6ed
Refactoring: use continue
2019-03-14 19:53:45 +01:00
3656f1ae4f
Auto variables: Fix false negatives for normal tokens
2019-03-14 13:51:35 +01:00
6eeee743d2
Auto variables: Minor cleanup
2019-03-14 06:41:11 +01:00
b984897526
ValueFlow: Fix sizeof for array of library type
2019-03-13 18:31:41 +01:00
2ecfae0a98
CheckBufferOverrun: the bufferNotZeroTerminated did not work well, hide that for now
2019-03-13 06:45:01 +01:00
81a1d744c6
CheckBufferOverrun: fix FP for array definition of static class member
2019-03-13 06:39:09 +01:00
67e8b99c2c
CheckBufferOverrun: Readd a check for strncpy/memcpy/etc
2019-03-12 21:15:26 +01:00
2a00667609
CheckBufferOverrun: cleanup
2019-03-12 18:58:14 +01:00
11e32ff445
ValueFlow: Handle compound assignments in execute()
2019-03-12 18:53:58 +01:00
0c08f6db6c
CheckBufferOverrun: Use AST to lookup array
2019-03-12 06:46:38 +01:00
4ababeb704
Fix 'make checkcfg'
2019-03-11 21:39:39 +01:00
ea23033a65
Array index out of bounds: Fix false positive
2019-03-11 20:33:08 +01:00
7b17b33a49
ValueFlow: fix handling of sizeof(*p)
2019-03-11 20:32:24 +01:00
17253cdb55
buffer overflow: Fix false positive
2019-03-11 19:40:17 +01:00
bd048085bd
Add CheckBufferOverrun::arrayIndexThenCheck
2019-03-11 19:20:06 +01:00
a933261e14
Add message id arrayIndexOutOfBoundsCond
2019-03-11 19:12:03 +01:00
0721c9f7f0
Running astyle [ci skip].
2019-03-11 15:32:30 +01:00
729f57d8f1
Start a major rewrite of CheckBufferOverrun. For now only the 'array index' and 'buffer overflow' checks are rewritten.
...
There are important TODOs still; for instance adding CTU support using our CTU infrastructure, add handling of pointers (maybe I'll use FwdAnalysis for this), add handling of multidimensional arrays, etc..
2019-03-11 12:34:33 +01:00
34711bcb93
Remove unused functions
2019-03-11 12:23:22 +01:00
df8cfe2fc6
Travis: Fix Cppcheck warning
2019-03-10 12:24:41 +01:00
6a3dd9a185
Handle concatenated string and char literals
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This handles concatenated strings and characters from simplecpp.
Previously, L'c' would be preprocessed to the tokens "L" and "'c'".
cppcheck would then remove the "L" token and set "'c'" to be a wide
character literal. Now, it needs to remove the prefix instead.
When doing this, add handling of utf32 encoded literals (U) and UTF-8
encoded literals (u8).
2019-03-10 10:38:50 +01:00
3eb5de756c
Buffer overrun: Refactorings; use range for loops and write in message
2019-03-09 22:19:09 +01:00
4ce6de39c5
CheckCondition: Moved checks to 'normal'
2019-03-09 22:00:59 +01:00
ea9b2032c1
CheckClass: Moved checks to 'normal'
2019-03-09 21:38:36 +01:00
69c05acd3b
CheckBoost: Use 'normal' checking
2019-03-09 20:00:31 +01:00
5a42c54d0f
CheckBool: Use normal checking
2019-03-09 19:16:07 +01:00
ac42382cd9
Rewrite CheckBool::checkAssignBoolToPointer to use ValueType
2019-03-09 19:15:06 +01:00
e17ddfd964
Changed AST for variable declarations with initializations
2019-03-09 19:09:15 +01:00
1b4895a579
ValueType: Set ValueType for false/true
2019-03-09 17:27:27 +01:00
5a32d2d017
Moved CheckAutoVariables::autoVariables to normal checking
2019-03-09 16:53:43 +01:00
38d5712aaa
Moved CheckAssert::assertWithSideEffects to normal checking
2019-03-09 16:50:50 +01:00
b9ac77a31b
Uninitialized variables: Fixed false positive
2019-03-09 11:30:45 +01:00
f36ca56e7d
Moved CheckStl::redundantCondition to normal checking
2019-03-09 07:53:49 +01:00
f9fe6cc96a
STL: Removed auto_ptr checking.
2019-03-09 07:48:01 +01:00
d7a645dcc3
Moved CheckStl::uselessCalls to normal checking
2019-03-09 07:37:08 +01:00
a53b016414
checknullpointer: Remove duplicated include ( #1732 )
2019-03-08 20:55:09 +01:00
45a0c2ebf5
Revert "Moved CheckStl::checkAutoPointer to normal checking"
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This reverts commit 6dc9727ffd
2019-03-08 20:53:37 +01:00
6dc9727ffd
Moved CheckStl::checkAutoPointer to normal checking
2019-03-08 20:41:28 +01:00
95a20c0233
Moved CheckStl::string_c_str to normal checking
2019-03-08 20:39:43 +01:00
fdf1d6fdee
Moved CheckStl::erase to normal checking
2019-03-08 20:36:40 +01:00
fdfe39299c
Moved CheckStl::pushback to normal checking
2019-03-08 20:33:16 +01:00
5fe48f3cd2
Moved CheckStl::mismatchingContainers to normal checking
2019-03-08 20:31:00 +01:00
b91bb2e523
Moved CheckStl::iterators to normal checking
2019-03-08 20:28:28 +01:00
8f2d70e61d
Move CheckStl::if_find to normal checking
2019-03-08 20:23:37 +01:00
725abbfac3
Move CheckStl::missingComparison to normal checks
2019-03-08 20:19:40 +01:00
75ce67f4b8
Fixed #9027 (cppcheck on Centos 7 - segmentation fault below CheckCondition::multiCondition2)
2019-03-08 19:27:20 +01:00
c8003d47e2
checkuninitvar.cpp: Use argument direction "out" info from library cfg ( #1730 )
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CheckUninitVar::isMemberVariableAssignment uses argument direction "out"
now also to check for assignment when the member variable is handed over
to a function by reference.
testuninitvar.cpp: Improve tests, use a test library configuration.
2019-03-08 18:42:24 +01:00
eb9edbc177
#9024 Crash caused by package "procserv" in lib/token.h:921 function Token::getKnownIntValue - Fix and test for alternative code example.
2019-03-08 11:07:33 +01:00
6eaf2c03d9
CheckOther::checkInvalidFree: Move check to normal checking. And clarify the message.
2019-03-07 06:35:44 +01:00
17e73fd144
Move CheckOther::checkComparisonFunctionIsAlwaysTrueOrFalse to Normal checking
2019-03-06 21:27:19 +01:00
f20936ed8a
Moved CheckOther::checkPassByReference to normal checking
2019-03-06 20:59:45 +01:00
9d5f672dbc
Unused struct member: Fix FPs seen in daca@home results for template structs
2019-03-06 20:51:48 +01:00
572d7eb86c
Moved CheckOther::clarifyCalculation to normal checking
2019-03-06 20:43:28 +01:00
ee9053f219
Moved CheckOther::checkRedundantCopy() to normal checking
2019-03-06 20:38:13 +01:00
6228ea2266
checkuninitvar.cpp: Use argument direction info from library config. ( #1728 )
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CheckUninitVar::isMemberVariableAssignment uses argument direction
to check for assignment when the member variable is handed over to a
function by reference. Currently implemented for "in" direction. "out"
will be added with another commit.
2019-03-06 19:26:38 +01:00
ad37664e86
Changed severities
2019-03-06 19:00:58 +01:00
c32d015337
Fixed false positives from terminateStrncpy
2019-03-06 18:50:50 +01:00
3f37d5ac2d
Refactoring strncpy/strncat checking to use ValueFlow and AST
2019-03-06 09:04:04 +01:00
37814513f8
Revert "Moved all simplified CheckOther checks from simplified to normal checking"
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This reverts commit 2900690881
2019-03-06 07:08:56 +01:00
2900690881
Moved all simplified CheckOther checks from simplified to normal checking
2019-03-06 06:33:51 +01:00
06c2019676
Moved CheckOther::checkPipeParameterSize from simplified to normal checking
2019-03-06 06:28:13 +01:00
cb973cbb7b
lib: reorders settings to match definition (-Wreorder) ( #1727 )
...
lib/settings.cpp:53:7: warning: field 'removeUnusedIncludedTemplates' will be
initialized after field 'removeUnusedTemplates' [-Wreorder]
removeUnusedIncludedTemplates(false),
^
lib/settings.cpp:54:7: warning: field 'removeUnusedTemplates' will be
initialized after field 'checkConfiguration' [-Wreorder]
removeUnusedTemplates(false),
^
2019-03-06 06:12:02 +01:00
fda0f52424
Add --remove-unused-templates flag to remove all unused templates
2019-03-05 14:58:02 +01:00
5ee6c2138c
Fixed #9016 (tokenizer: wrong simplification for operator ^ (){}) ( #1724 )
2019-03-05 11:35:45 +01:00
0934577dda
Library configuration: function argument direction fixes and enhancements ( #1722 )
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* std.cfg: Add further argument directions (in, out, inout).
* testlibrary.cpp: Add test for function argument direction configuration.
* std.cfg: runastyle and add some more direction configurations.
* library.h: Add documentation for function argument direction enum.
* Do not use "direction" library information for pointer arguments.
Also fix further unmatched uninitvar messages in std configuration
tests.
* std.cfg: Add more argument direction configurations.
* test/cfg/std.c: Add test for argument direction configuration.
* astutils.cpp: Only ignore pointer arguments for out/inout arguments.
* library.h: Use suggested documentation for argument direction enum.
2019-03-04 22:57:40 +01:00
3675318208
Added --remove-unused-included-templates option
2019-03-04 19:10:49 +01:00
c5a512338e
--check-headers=no: remove more templates in headers that are not used in the source file
2019-03-03 20:18:54 +01:00
40d7d5a3d0
template simplifier: fix return type of out of line member function when it is a template parameter ( #1723 )
2019-03-03 19:42:46 +01:00
41db8afe87
--check-headers=no: remove templates in headers that are not used in the source file
2019-03-03 12:56:37 +01:00
eb109af00f
Replace Token::simpleMatch with Token::Match for complex pattern
2019-03-03 12:40:55 +01:00
59ec5f961f
--check-headers=no: remove types in headers that are not used in the source file
2019-03-03 12:36:33 +01:00
411a3f09f7
--check-headers=no: Remove unused function declarations
2019-03-03 09:18:12 +01:00
b222953bae
template simplifier: only constant fold template instantiation arguments ( #1721 )
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* template simplifier: only constant fold template instantiation arguments
* Fix travis build.
2019-03-03 07:40:55 +01:00
f5c274b3b1
Added '--check-headers=no' option.
2019-03-02 19:52:15 +01:00
8a3b73ffdb
Do not write extra uninitvar warnings
2019-03-02 13:17:15 +01:00
9a5fcddb5d
Library configuration: Enable configuring the direction of arguments. ( #1717 )
...
This enhances the library configuration so the direction of function
arguments can be specified (in, out, inout).
isVariableChangedByFunctionCall() uses this information now to avoid
guessing.
2019-03-01 15:47:08 +01:00
845c407ab7
Fixed pattern matching in isVariableChanged() to handle normal token list better
2019-03-01 13:23:03 +01:00
b78b3c6ab1
Fixed #9005 (Syntax error on valid C++) ( #1716 )
2019-03-01 08:18:53 +01:00
8af3708aa3
Optimization: Library does not need to store "#define " substring for each define
2019-02-28 22:34:26 +01:00
5563fef7bb
Fixed #9008 (new crash in clang test suite)
2019-02-28 20:34:07 +01:00
4f5a426fe5
Improved isVariableChangedByFunctionCall, better logic when parameter might be passed by reference
2019-02-28 17:02:46 +01:00
494dd2ba3a
Revert "Improved isVariableChangedByFunctionCall, better logic when parameter might be passed by reference"
...
This reverts commit 14a0031e88
2019-02-28 15:56:25 +01:00
14a0031e88
Improved isVariableChangedByFunctionCall, better logic when parameter might be passed by reference
2019-02-28 10:26:47 +01:00
857681a049
Make quick fix for uninitialized variable false positive. Will look more at this soon.
2019-02-28 09:52:52 +01:00
98bf112352
template simplifier: fix recursive variable templates ( #1711 )
2019-02-28 08:30:04 +01:00
c8a7a4c653
library.cpp: WarnInfo: Fix crash ( #1697 )
...
If no 'alternatives' argument was specified and the `<warn/>` element
did not contain any text Cppcheck crashed because of a null pointer
access.
If there is no 'reason' and no 'alternatives argument and also no text loadFunction() returns with an error.
2019-02-28 06:19:42 +01:00
11daabc1a8
Set version to 1.87.99/1.88 dev
2019-02-27 21:30:54 +01:00
e27a7a585f
Fix uninitvar false positive when taking address of variable
2019-02-27 18:44:30 +01:00
80143725dd
Fixed #8999 (False positive uninitvar related to casting)
2019-02-27 17:58:25 +01:00
226f0c7544
Fixed ValueType for auto variable
2019-02-27 10:28:18 +01:00
032020c40d
Fix issue 9001: FP: Found suspicious operator ',' [constStatement]
2019-02-27 07:09:22 +01:00
e846312fed
Check subtraction of pointers to different objects
2019-02-27 06:55:48 +01:00
0e988cc755
Fix #8992 : Add originalTypeToken to auto ( #1701 )
2019-02-27 06:44:31 +01:00
c9efc26578
valueflow: Mark getLifetimeToken() static ( #1703 )
...
Fixes a compiler warning about missing declaration.
2019-02-26 23:35:11 +01:00
c44e2ed378
sizeof: write inconclusive warning if calculation in sizeof is done indirectly by macro
2019-02-26 21:06:44 +01:00
9e93e89a4d
UninitVar: Fix false positives when there is possible cast
2019-02-26 19:26:46 +01:00
bf85767829
template simplifier: make sure all instantiations are found and expan… ( #1696 )
...
* template simplifier: make sure all instantiations are found and expanded in #5097
* template simplifier: check output on another test
* template simplifier: add output to another test
2019-02-26 06:41:04 +01:00
3f257d6310
template simplifier: instantiate template class when something inside… ( #1695 )
...
* template simplifier: instantiate template class when something inside class instantiated.
* template simplifier: add output to another test that now works
2019-02-25 21:01:34 +01:00
ef6fc67da4
Move CheckString::checkAlwaysTrueOrFalseStringCompare() from runSimplifiedChecks() to runChecks()
2019-02-25 18:11:33 +01:00
f1146e398a
Moved CheckString::sprintfOverlappingData from runSimplifiedChecks to runChecks
2019-02-25 09:23:03 +01:00
4218698fb1
Moved CheckString::checkIncorrectStringCompare from runSimplifiedChecks to runChecks
2019-02-25 09:08:16 +01:00
d84d8885f7
SymbolDatabase: Fix TODO assertions
2019-02-24 19:11:18 +01:00
ef731064bd
Fixed #8964 (ValueType: auto constness)
2019-02-24 08:16:08 +01:00
c855cf8682
ValueType: Better constness for auto variable
2019-02-23 18:16:18 +01:00
b43572d75e
Fixed #8969 (C++ functional cast not handled correctly)
2019-02-23 17:29:53 +01:00
68062e3702
Fixed #8954 (false positive: Local variable x shadows outer variable)
2019-02-23 16:22:22 +01:00
fd3c1fd040
Fix issue 1777: Undefined Behavior: Comparing pointers to different objects
...
This uses the lifetime analysis to check when comparing pointer that point to different objects:
```cpp
int main(void)
{
int foo[10];
int bar[10];
int diff;
if(foo > bar) // Undefined Behavior
{
diff = 1;
}
return 0;
}
```
2019-02-23 08:32:08 +01:00
1b703ce58e
7772 Add uninitMemberVarPrivate to errorlist (really) #1557 ( #1686 )
...
Previous attempt 70527a78f7
2019-02-23 08:07:46 +01:00
941dd79f0d
Fix FP issue 8986: constArgument check warns for elements of const array ( #1683 )
2019-02-22 06:39:59 +01:00
507c7a4388
Improvement to lifetime tracking of addressof and derefencing
...
This will now warn for cases like this:
```cpp
auto& f() {
std::vector<int> x;
return x[0];
}
```
It also improves the handling of address of operator, so it can now warn across some function calls, like this:
```cpp
int& f(int& a) {
return a;
}
int* hello() {
int x = 0;
return &f(x);
}
```
2019-02-22 06:38:56 +01:00
715714f4de
Forward lifetimes in "for" loops ( #1682 )
...
* Forward lifetimes in for loops
* Format
2019-02-22 06:37:02 +01:00
0ee3f678b5
Fix issue 8987: False positive knownConditionTrueFalse ( #1678 )
2019-02-20 15:28:31 +01:00
dfaf75db54
Fix issue 8984: FP constStatement regression with qualified name ( #1676 )
2019-02-19 07:08:36 +01:00
2908593cf6
checkautovariables: eliminate false positives on assignment of &ptr->item ( #1667 )
...
Even if `ptr` is a local variable, the object `ptr->item` might be not.
So taking address of `ptr->item` is definitely not unsafe in general.
This commit fixes false positives triggered by commit
1.85-249-gf42648fe2 on the following code of sssd:
https://github.com/SSSD/sssd/blob/d409df33/src/sbus/request/sbus_request.c#L359
2019-02-18 09:35:07 +01:00
cf1ad5087a
Extend constStatement checker
...
This reworks constStatement to find more issues. It catches issue [8827](https://trac.cppcheck.net/ticket/8827 ):
```cpp
extern void foo(int,const char*,int);
void f(int value)
{
foo(42,"test",42),(value&42);
}
```
It also catches from issue [8451](https://trac.cppcheck.net/ticket/8451 ):
```cpp
void f1(int x) {
1;
(1);
(char)1;
((char)1);
!x;
(!x);
~x;
}
```
And also:
```cpp
void f(int x) {
x;
}
```
The other examples are not caught due to incomplete AST.
2019-02-15 13:31:40 +01:00
dc4e7cef88
Run simplifyPlatformTypes on library return types ( #1672 )
...
Add a call to simplifyPlatformTypes() in
SymbolDatabase::setValueTypeInTokenList() to simplify return types of
library configured functions. This fixes the FN in #8141 . Regression
tests are added, both for the original issue and another FN in the comments.
In order to do that, move simplifyPlatformTypes() to TokenList from Tokenizer.
This is a pure refactoring and does not change any behaviour. The code was
literally copy-pasted from one file to another and in two places
'list.front()' was changed to 'front()'.
When adding the call to simplifyPlatformTypes(), the original type of
v.size() where v is a container is changed from 'size_t' to 'std::size_t'.
Tests are updated accordingly. It can be noted that if v is declared as
'class fred : public std::vector<int> {} v', the original type of 'v.size()'
is still 'size_t' and not 'std::size_t'.
2019-02-15 13:29:52 +01:00
8bd5b3eccf
Fixed #8962 ("(debug) Unknown type 'T'" with template typename parame… ( #1671 )
...
* Fixed #8962 ("(debug) Unknown type 'T'" with template typename parameter)
Only simple one parameter template functions with one function parameter
are supported.
* Added TODO test case for FIXME.
2019-02-14 11:48:59 +01:00
9dc5dbe1ab
Fixed #8976 (Crash on `using mystring = std::string;`) ( #1663 )
...
* Fixed #8976 (Crash on `using mystring = std::string;`)
* templateSimplifier: move test case to correct file.
2019-02-12 09:39:01 +01:00
03c9477028
settings: -Wreorder fix ( #1664 )
...
otherwise showing (with Apple LLVM version 10.0.0):
lib/settings.cpp:34:7: warning: field 'jointSuppressionReport' will be
initialized after field 'maxCtuDepth' [-Wreorder]
jointSuppressionReport(false),
2019-02-12 09:07:59 +01:00
9490d0db8c
token simplifier: fix crashes related to #8972 ( #1659 )
2019-02-11 07:45:03 +01:00
10b4215839
UninitVar: use normal token list instead of simplified token list
2019-02-11 07:43:16 +01:00
6ca1aba4a7
UninitVar: Fix --experimental-fast issues
2019-02-10 19:00:01 +01:00
eaaff30e65
Ticket #8878 : Properly simplify typedefs within template instantiations. ( #1656 )
2019-02-10 09:45:33 +01:00
4f232e41dd
Add --experimental-fast option
2019-02-09 14:40:50 +01:00
502d5e9142
1.87: Set versions
2019-02-09 09:07:27 +01:00
9337af8965
astyle formatting
2019-02-09 08:48:10 +01:00
797eccc203
Fix possible out of bounds access on arguments ( #1652 )
...
* Fix possible outbounds access on arguments
* Log a warning when the arguments mismatch
* Format
2019-02-09 08:47:36 +01:00
155e4ce912
Fixed #8971 ("(debug) Unknown type 'x'." using alias in class members) ( #1653 )
...
* Fixed #8971 ("(debug) Unknown type 'x'." using alias in class members)
* template simplifier: partial fix for #8972
Add support for multi-token default template parameters.
* template simplifier: fix for #8971
Remove typename outside of templates.
2019-02-09 08:34:59 +01:00
bd7790fd8c
Update copyright year
2019-02-09 07:24:06 +01:00
d7c20b15e7
Fix FP with const argument when doing a variable and cast ( #1649 )
2019-02-07 14:59:09 +01:00
7025254c26
Fixed #8969 (syntax error: template) ( #1647 )
...
Fixed template detection to handle multi-token template parameters.
2019-02-07 08:50:49 +01:00
14a312e310
useInitializationList: Skip warning when rhs is a multi line lambda. For readability it might be better to have assignments in constructor in this case.
2019-02-05 19:53:10 +01:00
1faae52d06
Fixed #8960 ("(debug) Unknown type 'x'." with alias in template class alias) ( #1643 )
...
* Fixed #8960 ("(debug) Unknown type 'x'." with alias in template class alias)
This commit adds non-template type alias support to the template
simplifier. Only relatively simple type aliases are supported at this
time. More complex types will be added later.
--debug-warnings will show unsupported type aliases.
Type alias support will be removed from the symbol database in the
future. Type alias tests have been removed from the symbol database
tests.
* Add the changes.
* Fix codacy warning.
* Fix travis warnings.
2019-02-05 08:52:23 +01:00
b7631b0390
Add more timers in tokenizer
2019-02-04 21:13:59 +01:00
23599428cb
Clarify Cppcheck output
2019-02-03 19:49:27 +01:00
437800f46d
CLI: Added --max-ctu-depth
2019-02-03 17:51:36 +01:00
a4406aca32
Fixed #7845 (Leak reported when ignoring return value of 'new', even if pointer saved by constructor)
2019-02-03 12:15:05 +01:00
ae001d4336
Fixed #8957 (Tokenizer::setVarId: varid not set when lambda function is used)
2019-02-03 08:57:04 +01:00
4457faa26b
Fixed #8850 (Array in-class initialization for private member considered uninitialized)
2019-02-02 18:34:41 +01:00
9d8f798aca
Fixed #8951 (false postive: (style) The class 'x' does not have a constructor although it has private member variables.)
2019-02-02 18:25:26 +01:00
5c0ec782f1
Add ability to time simplifyTemplates. ( #1640 )
2019-02-01 18:17:18 +01:00
d08aa666f6
template simplifier: fix crash on windows ( #1639 )
...
* template simplifier: fix crash on windows
Use right token when searching for template type alias to delete.
* template simplifier: fix a cppcheck warning
2019-02-01 06:59:49 +01:00
8925299947
Attempt to fix MSVC compile issue
2019-02-01 00:09:07 +01:00
98fc6d1d32
Fixed #8959 ("(debug) Unknown type 'x'" with using/alias) ( #1635 )
...
* Fixed #8959 ("(debug) Unknown type 'x'" with using/alias)
* fix cppcheck warning
2019-01-31 23:57:37 +01:00
53967c83e9
Fixed compile error
2019-01-31 23:52:48 +01:00
961f66baff
Fixed #8820 (import GUI project)
...
This has basic handling of GUI projects. But further work will be needed to handle addons etc, the plan is that we will be able to run addons from the command line soon.
2019-01-31 20:40:21 +01:00
05a3e6807b
Fixed #8950 and #8952 (improve type alias support) ( #1633 )
...
* Fixed #8950 and #8952 (improve type alias support)
* fix travis build
2019-01-31 16:53:51 +01:00
c176775afb
Avoid infinite recursion in getLifetimeVariable ( #1634 )
...
* Fix direct recursion
* Limit depth of getLifetimeVariable
2019-01-31 10:34:41 +01:00
7779a9186e
Use valueflow in unsigned less than zero checker ( #1630 )
...
The unsigned less than zero checker looked for patterns like "<= 0".
Switching to use valueflow improves the checker in a few aspects.
First, it removes false positives where instead of 0, the code is using
0L, 0U, etc. Instead of having to hard code the different variants of 0,
valueflow handles this automatically. This fixes FPs on the form
uint32_t value = 0xFUL;
void f() {
if (value < 0u)
{
value = 0u;
}
}
where 0u was previously not recognized by the checker. This fixes #8836 .
Morover, it makes it possible to handle templates properly. In commit
fa076598ad#3233
template<int n> void foo(unsigned int x) {
if (x <= n);
}
foo<0>();
but give a warning for the following case
template<int n> void foo(unsigned int x) {
if (x <= 0);
}
Previously, both these cases gave inconclusive warnings.
Finally, it makes it possible to give warnings for the following code:
void f(unsigned x) {
int y = 0;
if (x <= y) {}
}
Also, previously, the checker for unsigned variables larger than 0, the
checker used the string of the astoperand. This meant that for code like
the following:
void f(unsigned x, unsigned y) {
if (x -y >= 0) {}
}
cppcheck would output
[unsigned-expression-positive.c] (style) Unsigned variable '-' can't be negative so it is unnecessary to test it.
using expressionString() instead gives a better error message
[unsigned-expression-positive.c] (style) Unsigned expression 'x-z' can't be negative so it is unnecessary to test it.
2019-01-31 09:30:29 +01:00
18e6a09739
astyle formatting
...
[ci skip]
2019-01-29 09:48:18 +01:00
165a22ed0f
Lifetime: Support analysis with functions that do not return a reference ( #1632 )
...
* Initial support for function return
* Add test case
* Add support for reference parameters
* Format
2019-01-29 09:47:52 +01:00
54cebfaf94
Fixed #8392 (false positive: "Memory leak" with malloc in if)
2019-01-27 10:27:44 +01:00
606ba4fc1a
template simplifier: add forward declaration map to debug output ( #1629 )
...
* template simplifier: add forward declaration map to debug output
* template simplifier: add partial specialization flag
* template simplifier: add specialization map and partial specialization map to debug output
2019-01-27 07:46:27 +01:00
2bba9ac78a
Fixed #8948 (False Positive: Variable 'n' is assigned a value that is never used.)
2019-01-26 21:44:07 +01:00
d6aaf401df
Lifetime: Follow functions that return references
...
This will now warn for cases like this:
```cpp
int& f(int& a) {
return a;
}
int& hello() {
int x = 0;
return f(x);
}
```
2019-01-26 11:03:57 +01:00
68bbe15116
template simplifier: fix missing instantiation ( #1627 )
2019-01-26 07:08:54 +01:00
cb1a1df0fa
template simplifier: fix out of line member function scope and use more full name matching ( #1617 )
2019-01-24 07:21:22 +01:00
ec8bc785a2
template simplifier: add support for using namespace when instantiating templates ( #1615 )
2019-01-23 08:53:01 +01:00
3975913637
Extend lifetime checking for references
...
This will use the lifetime checker for dangling references. It will find these cases for indirectly assigned reference:
```cpp
int &foo()
{
int s = 0;
int& x = s;
return x;
}
```
This will also fix issue 510 as well:
```cpp
int &f( int k )
{
static int &r = k;
return r;
}
```
2019-01-23 07:29:16 +01:00
8c07be136a
Fixed #8949 (False Positive: Variable 'f' is assigned a value that is never used.)
2019-01-22 21:16:27 +01:00
149d688e9a
Fix return value from ErrorLogger::reportUnmatchedSuppressions
2019-01-22 06:45:22 +01:00
4119cfd3d1
Correct exit code when there are no unmatched suppressions
2019-01-21 20:33:22 +01:00
4b37f276c2
ValueFlow: Set arrays to true when converting to a boolean
...
This sets it by checking the parent. It doesn't handle function parameters yet.
2019-01-21 20:05:35 +01:00
91435310cb
Fixed #8925 (compile_commands.json: False positives in .mm (Objective-C++) files, that file type should maybe just be ignored)
2019-01-21 06:36:31 +01:00
a26287f491
Fix Token::findExpressionStartEndTokens() regression
2019-01-20 13:23:19 +01:00
8da4e31c42
Fixed #8941 (False Positive: Variable 'f' is assigned a value that is never used.)
2019-01-20 13:20:23 +01:00
1acbdde302
Fixed #7417 ("syntax error" in valid code containing explicitly specialised variable template) ( #1604 )
2019-01-18 21:12:39 +01:00
4b1544d33b
library.cpp: Let tinyxml2 print a helpful error message when XML is bad ( #1609 )
...
In case the XML code of a library configuration is invalid Cppcheck now additionally prints out some helpful error description like this:
"Error=XML_ERROR_MISMATCHED_ELEMENT ErrorID=16 (0x10) Line number=304: XMLElement name=noreturn"
2019-01-18 17:10:41 +01:00
3bbd9fc9a4
Replace "virtual method" with "virtual function" in messages.
...
The term "method" is not really a part of C++ terminology.
2019-01-15 06:22:14 +01:00
f267900257
Fix spelling of "overridden" in function names.
...
One 'd' was missing.
2019-01-15 06:22:14 +01:00
6ef8dad459
template simplifier: improve namespace matching
...
* out of line member functions are a namespace
* template<...> and *_cast<> can't be instantiations
* refactor code to use less function parameters
* fix instantiation scopes
* use full name with namespace when available
* fallback to just matching names when full name doesn't match
2019-01-14 21:32:58 +01:00
f0cfe03f7b
template simplifier: add cli --debug-template option to print the parsed template information ( #1598 )
2019-01-14 08:29:32 +01:00
51afcb2f64
Fix Cppcheck missingOverride warnings
2019-01-13 13:22:36 +01:00
0c08503b00
Travis: Enable missingOverride checker
2019-01-13 12:21:01 +01:00
5f198662ff
rephraze internal warning
2019-01-13 12:12:07 +01:00
c75a2265c0
Fix inline suppression.
2019-01-13 12:10:26 +01:00
43035ff186
Remove inline suppression. The Cppcheck warning was a true positive.
2019-01-13 08:42:48 +01:00
d50c3de740
Remove inline suppression and fix false positive.
2019-01-13 07:59:41 +01:00
e6edd74099
Temporarily suppress Cppcheck false positives
2019-01-12 19:11:44 +01:00
d40314b825
Replace Token::Match with Token::simpleMatch for simple patterns
...
[ci skip]
2019-01-12 18:44:48 +01:00
2b1b8f8fe9
Fix Cppcheck warnings
...
[ci skip]
2019-01-12 18:29:08 +01:00
1cd16cf94f
Suppressions: Handle comment in file that starts with #
2019-01-12 15:21:47 +01:00
8b5f36670a
Introduce macro OVERRIDE for gcc-4.6 compatibility.
2019-01-12 07:37:42 +01:00
c6b48b67f9
astyle formatting
...
[ci skip]
2019-01-11 16:37:12 +01:00
45def06d59
fix trailing / from CMAKE JSON file and update unittests to cover both (w and w/o cases) ( #1592 )
...
* fix for CMake compile_commands.json input - director does not include trailing / which makes include directories wrong - so add it if it doesnt exist
* fix the bugfix for trailing / in the directory name of CMAKE JSON file, add also new test case to see if it works in both cases (with and without trailing /)
* revert adding accidental new line
2019-01-11 16:36:55 +01:00
991191450a
astyle formatting
...
[ci skip]
2019-01-11 12:56:31 +01:00
921f6e4313
Fix issue 8883: False positive: returnDanglingLifetime with local struct or class ( #1585 )
2019-01-11 09:51:02 +01:00
5fa956a597
Fix issue 8932: False positive knownConditionTrueFalse - valueflow ignores operator < ( #1584 )
2019-01-11 08:39:23 +01:00
8509159d1a
Uninitialized Member variable: Fixed FP when delegate constructor is used
2019-01-10 20:13:37 +01:00
a48c8abcda
Fix 8124: False positive va_end missing with lambda ( #1577 )
...
Skip lambdas, to avoid false positives due to possible
return statements in lambdas.
Also, run dmake.
2019-01-10 18:32:17 +01:00
4e147a4c59
Add a check for duplicate if statements
...
This will warn for this:
```cpp
int f(int val)
{
int i = 0;
if( val & 0xff)
i = 1;
if( val & 0xff)
i = 1;
return i;
}
```
2019-01-09 20:41:01 +01:00
35e56942d1
Fixed #8116 ([False positive] Invalid memory leak detection when using reference.)
2019-01-09 20:38:32 +01:00
75e367c48b
Fixed #8340 (incorrect memleak errors)
2019-01-09 19:50:41 +01:00
5ddc6c64d7
CheckStl: add missing error ID iterators2 ( #1576 )
...
due to equal arguments...
* iterators1 (`CheckStl::iteratorsError(const Token*, const std::string&, const std::string&)`) and
* iterators2 (`CheckStl::iteratorsError(const Token*, const Token*, const std::string&, const std::string&)`)
... produced equal messages. Equal messages were filtered-out `CppCheck::reportErr(const ErrorLogger::ErrorMessage&)`.
So the error iterators2 disapeared from the error list.
2019-01-09 06:45:38 +01:00
0f9ce5edd5
Fixed #8365 (False positive on memory leak when assigned inside if statement)
2019-01-08 20:54:39 +01:00
e4525d56a0
Fixed #8111 (performance warning - member variable at constructor)
2019-01-07 21:26:58 +01:00
07da4b4d37
template simplifier: Add flag variable to cache information about dec… ( #1569 )
...
* template simplifier: Add flag variable to cache information about declarations.
Also fix some cppcheck warnings.
* Make variable const.
2019-01-07 06:55:22 +01:00
0a1b3a9d6f
Fix typos ( #1568 )
2019-01-06 17:15:57 +01:00
5636497c0b
Fixed #8863 (false positive: (warning) Accessing an item in container 's'. Either the condition 's.empty()' is redundant or 's' can be empty.)
2019-01-06 12:21:55 +01:00
ea0232653f
Fixed #8563 (CPPCheck not able to locate file through compilation database)
2019-01-05 23:11:43 +01:00
817c748e4d
Fixed #5953 (debug: varid0: Function::addArguments) ( #1567 )
2019-01-05 19:42:04 +01:00
36ffa91825
Replace std::set::emplace with std::set::insert to make Cppcheck compilable in Slackware 14.0
2019-01-05 18:18:15 +01:00
5f5c33baf2
Json: Use simple json library picojson to read compile databases
2019-01-05 17:45:07 +01:00
615903c6be
Improve syntax errors for unmatched (){}[]
2019-01-05 11:56:21 +01:00
32a5d66e5b
Fixed #8927 (SIGSEGV below TemplateSimplifier::expandTemplate) ( #1564 )
2019-01-05 11:14:09 +01:00
bba6dfb8b2
Fix issue 4744: ValueFlow: known integer result
...
This fixes valueflow to have a value for `||` operator here:
```cpp
bool f()
{
bool a = (4 == 3); // <-- 0
bool b = (3 == 3); // <-- 1
return a || b; // <-- 1
}
```
2019-01-03 07:05:31 +01:00
2b63997c2c
Fixed #8928 (false positive: (style) Variable 'x' is assigned a value that is never used.)
2019-01-02 20:23:02 +01:00
39ceb53578
Comment out code in valueFlowArray. There was too many false positives.
2019-01-02 19:57:11 +01:00
39a96a5a16
ValueFlow: Temporarily comment out valueFlowTerminatingCondition
2019-01-02 19:42:08 +01:00
7a40b85531
Fixed #8906 (Encoding error in XML message: info attribute)
2019-01-02 18:22:12 +01:00
af639e9848
#7772 Add uninitMemberVarPrivate to errorlist ( #1557 )
2019-01-02 18:08:39 +01:00
236c88151f
Fixed #8926 (false positive: (style) Condition 's.x<=y' is always true)
2019-01-02 18:05:55 +01:00
3b9828a132
template simplifier: fix crash on daca c++-annotations project ( #1556 )
...
Fix scope info bug on derived template class which caused a use after
free crash when deleting a template forward declaration in a different
scope.
2019-01-02 07:15:45 +01:00
19514331fb
Fixed #8907 (unknown macro not detected)
2019-01-01 19:30:13 +01:00
115be7dfc8
ValueFlow: better FwdAnalysis for complex expressions
2019-01-01 18:23:47 +01:00
be7afac875
ValueFlow: remove handling of == for complex expressions it did not work properly
2019-01-01 17:23:46 +01:00
20436ea986
Fix compiler warning
2019-01-01 17:04:47 +01:00
13ffefc8b8
Valueflow: Fix right shift with more than 31 bits ( #1553 )
...
When comparing if the shift is large enough to make the result zero, use
an unsigned long long to make sure the result fits. Also, a check that
avoids setting the value if the shift is equal to or larger than the
number of bits in the operand (this is undefined behaviour). Finally,
add a check to make sure the calculated value is not too large to store.
Add test cases to cover this.
This was detected by an MSVC warning.
valueflow.cpp(1350): warning C4334: '<<' : result of 32-bit shift implicitly
converted to 64 bits (was 64-bit shift intended?)
2019-01-01 14:15:50 +01:00
a73e989d1a
isConstVarExpression: Fix FPs when there is C++ cast
2019-01-01 11:34:44 +01:00
04d3672bde
Fixed #7203 (Better syntax error, handle array declaration with @)
2019-01-01 09:45:41 +01:00
c37b807613
template simplifier: also check if instantiated template is not specialized ( #1551 )
2018-12-31 21:29:53 +01:00
ac357a96f7
Fixed #7384 (confuses syntax with variable name / "variable '(' is less than zero")
2018-12-31 18:36:06 +01:00
ed514644b8
Renamed FwdAnalysisAllPaths to FwdAnalysis
2018-12-31 18:00:47 +01:00
4918a18bfb
ValueFlow: Value of expression after condition
2018-12-31 17:37:38 +01:00
9dc8faa3b6
template simplifier: fix location of forward declaration for explicit specializations ( #1550 )
2018-12-31 17:19:34 +01:00
141ce7cd63
ValueFlow: Use FwdAnalysisAllPaths in ValueFlow to track complex expressions
2018-12-31 17:05:46 +01:00
fd8f599802
CTU: Use column in function id
2018-12-31 10:18:28 +01:00
aa4f61acdf
CTU: Avoid FP in else block
2018-12-31 08:24:39 +01:00
fb6a291370
CTU: Avoid FP in code protected by &&,||,?
2018-12-31 08:16:21 +01:00
a520a41e64
CheckUninitVar: Try to report all CTU issues not just the first found issue
2018-12-31 07:54:00 +01:00
37a3544ff5
CheckNullPointer: Try to report all CTU issues not just the first found issue
2018-12-31 07:52:14 +01:00
5cc61e55f9
CTU: Refactoring; Use ValueFlow::Value::errorSeverity
2018-12-31 07:50:02 +01:00
f2d7cb3ab6
Fix VS compiler warning and add a const
2018-12-30 22:17:21 +01:00
36dfa0f27a
template simplifier: refactor to use cached information ( #1548 )
...
* use already cached name token rather than recalculating it
multiple times
* cache end of template parameters token and use it rather than
recalculating it multiple times
* remove unnecessary end of template token and name token checks
* remove function parameter that is already contained in another
parameter
2018-12-30 21:16:11 +01:00
6b49a784c5
Fixed #8911 (Regression: False positive: Unassigned variable (alias))
2018-12-30 20:20:20 +01:00
73fa941352
Doxygen fixes
2018-12-30 19:31:50 +01:00
91a580cbd7
CTU: more warnings
2018-12-30 18:31:37 +01:00
c8901e9bab
CTU: Find paths better
2018-12-30 16:23:25 +01:00
b3fcd8a685
astyle formatting
...
[ci skip]
2018-12-30 11:59:06 +01:00
378e083585
CTU: Refactoring the xml load/write. Renamed members.
2018-12-30 11:55:39 +01:00
5ae6861a0f
clang warnings ( #1547 )
...
* valueflow: remove unused variable known
since e4677ae64048c960f56c
2018-12-30 11:32:48 +01:00
3f318548e2
CheckNullPointer: Add missing id 'nullPointerArithmeticRedundantCheck' to errorlist ( #1535 )
...
* split CheckNullPointer::arithmeticError() into
* CheckNullPointer::pointerArithmeticError() and
* CheckNullPointer::redundantConditionWarning()
* Additional errorlist entry:
```XML
<error id="nullPointerArithmeticRedundantCheck"
severity="warning"
msg="Either the condition is redundant or there is pointer arithmetic with NULL pointer."
verbose="Either the condition is redundant or there is pointer arithmetic with NULL pointer." cwe="682"/>
```
2018-12-29 21:34:22 +01:00
da91ce2016
Fixed #6183 (TemplateSimplifier: Does not handle methods) ( #1546 )
...
* Fixed #6183 (TemplateSimplifier: Does not handle methods)
* Fix function lookup.
2018-12-29 11:19:53 +01:00
e4677ae640
Fix issue 8910: Regression: ValueFlow: wrong conditional tokvalue
...
This fixes issue in:
```cpp
void f()
{
char stack[512];
RGNDATA *data;
if (data_size > sizeof (stack))
data = malloc (data_size);
else
data = (RGNDATA *)stack;
if ((char *)data != stack)
free (data); // <- data is not stack
}
```
It seems the `ProgramMemory` can't handle two known values(such as int and tok) together. So instead `ValueFlowAfterAssign` runs `ValueFlowForward` with tok values and then runs it with the other values.
2018-12-29 09:31:21 +01:00
d18f5d8709
CTU: Reuse CheckNullPointer::isPointerDeRef in the nullpointer isUnsafeUsage
2018-12-29 09:26:57 +01:00
03ed4afc70
Export interfaces from cppcheck-core.dll used from testrunner. In turn remove ctu sources from testrunner which are obsolete now.
2018-12-28 23:09:44 +01:00
22504975b9
Patch assert warning lib/checkassert.cpp ( #1543 )
...
* Fixed typo in warning about modified variable inside assertion
* Fixed assert warning again in checkassert.cpp
2018-12-28 15:25:22 +01:00
ee3fd0af03
Refactoring: Combine replaceStr functions
2018-12-28 13:11:54 +01:00
036fcf7827
Fix warnings ( #1541 )
...
* Fix reorder warning
* Fix override warnings
Clang warns about missing overrides.
* Remove unused function
* Add missing argument to function calls
2018-12-28 12:59:05 +01:00
128ad96b59
Add ctu sources to VS projects
2018-12-27 22:11:40 +01:00
a40fe3c67f
Fixed #7872 (ValueFlow: static_cast)
2018-12-27 21:33:01 +01:00
6fef02498c
Fixed #7263 (False negative: redundant assignment using +=)
2018-12-27 17:27:53 +01:00
a788512d66
CTU: Refactor isUnsafeFunction
2018-12-26 19:17:49 +01:00
a6e227a73c
CTU: Refactoring; getErrorPath
2018-12-26 15:56:10 +01:00
e39be48c92
CTU: Refactoring, create ErrorPath in ctu
2018-12-26 11:36:26 +01:00
271763e680
CTU: Refactoring
2018-12-25 21:11:23 +01:00
a1dca6acd5
Fix CTU nullpointer check
2018-12-25 12:04:01 +01:00
ddbe5c129c
Clarify FwdAnalysis. It is useful for checks that need data flow analysis of ALL paths.
2018-12-25 11:56:06 +01:00
c7993df4ff
Refactoring; Use range for loops
2018-12-25 11:47:45 +01:00
162576146e
Revert "Fixed #6183 (TemplateSimplifier: Does not handle methods) ( #1540 )"
...
This reverts commit 7875555b03
2018-12-24 20:10:00 +01:00
b3e6ecd827
Library: Make loading of cfg files more robust. Saw a problem to use --library=gtk when the current folder has a folder 'gtk'
2018-12-24 08:37:33 +01:00
7875555b03
Fixed #6183 (TemplateSimplifier: Does not handle methods) ( #1540 )
2018-12-24 07:25:11 +01:00
b79619832e
Clarify warning
2018-12-23 12:42:18 +01:00
48c960f56c
template simplifier: better detection of template functions ( #1539 )
...
* template simplifier: better detection of template functions
* fix comment
2018-12-22 10:05:10 +01:00
b51f19d530
Fix some doxygen warnings/issues in the comments ( #1537 )
2018-12-21 21:23:03 +01:00
b97b3b7ef8
astyle formatting
...
[ci skip]
2018-12-21 13:54:59 +01:00
431d068339
Several fairly significant optimisations ( #1518 )
...
* Code changes for Token::mImpl optimisation
* Added new TokenImpl optimisation
Moving members to the TokenImpl struct reduces the size of the Token class, which is a fairly significant optimisation. In my testing on Windows with 32-bit Release-PCRE, this change reduced the size of the Token class from 108 bits to 52 bits and reduced run-time of my test case by around 20%.
* Several optimisations
Deleted some code that ran very slowly and did nothing, as there is no need to change a Token's string to null if you are about to delete it.
Added a frontToken to simplifyCalculations to reduce the amount of work it has to do on already-simplified calculations.
Moved template removal to the end of the list as this reduces redundant iteration and saves time.
* Added tok argument to simplifyCalculations
This means callers can avoid unnecessary work if they know which tokens have already been simplified. Passing nullptr indicates the original behaviour (starting from the front of the list).
* Removed mention of member from another change
* Re-added and optimised some code deleted in error
Changing mTemplateInstantiations to a vector avoids the high cost of doing repeated linear searches. Changing how the code iterates through the array was necessary because the vector can be resized at several points during the loop, which breaks existing references and iterators.
* Changed mTemplateInstantiations to a vector
This is an optimisation that makes repeated linear searches of this collection significantly faster.
Also added a copy constructor to TokenAndName so code can make copies of these objects to keep a reference if a vector gets resized.
* A cleaner optimisation to removing template tokens
This reverts the previous change to made mInstantiatedTemplates a vector and the iterator changes to support this, and makes mTypesUsedInTemplateInstantiation so the eraseTokens logic can be unified.
* Reverted vector to list
Also made mTypesUsedInTemplateInstantiation a vector of TokenAndName objects so it can share the same logic as the other members.
* Added member for template simplifier pointer
This can be used more efficiently than marking Tokens with a flag and then searching through all templates to find the one that matches.
* Turned loop inside out
This means we only have to iterate through the std::list once. std::list is very expensive to iterate through.
* Latest code from danmar and fixed optimisations
In particular I have optimised simplifying template instantiation names as this was incredibly slow because of the number of times it had to iterate through the template instantiation list. Previous optimisations to this weren't very effective and broke some edge cases.
* Added changes from danmar
Made mExplicitInstantiationsToDelete a vector of TokenAndName to be consistent with the rest of the members, which are cleaned up very efficiently.
* Tokens can have many templateSimplifierPointers
* templateSimplifierPointers must be kept in sync
2018-12-21 13:51:45 +01:00
a1a695dcda
checkio: Add missing id "invalidScanfFormatWidth_smaller" to errorlist output ( #1533 )
2018-12-20 21:14:02 +01:00
d528934139
template simplifier: also remove forward declarations when removing expanded templates ( #1536 )
2018-12-20 20:55:27 +01:00
19e979315f
Correct detection of Microsoft extensions in MathLib::isValidIntegerSuffix. Remove public overloaded implementation which was not used outside mathlib.cpp. ( #1531 )
2018-12-20 12:20:31 +01:00
c31331d085
template simplifier: fix explicit instantiation with types starting with const and ending in * and &. ( #1530 )
2018-12-19 21:59:59 +01:00
e2c433a0f8
Fixed #8914 (False positive with unary_function argument)
2018-12-19 19:43:05 +01:00
378ffed37e
Address compiler warning
2018-12-19 14:39:04 +01:00
34874dd94f
Optimization: Removed unnecessary calls to simplifyPath(). The Caller should do this, and our callers (mainly the test suite) more or less do so, as they all supply just dummy paths ("test.cpp")
2018-12-18 20:33:45 +01:00
bc34f0239d
Disable the subfunction value flow analysis. It does not work well and needs to be rewritten. There are false positives.
2018-12-18 14:36:49 +01:00
34330b51d1
Fix issue 8905: Condition 'a==0' is always false
...
This fixes the FP in:
```cpp
void f(const int a[]){ if (a == 0){} }
```
2018-12-18 08:16:43 +01:00
1cba78090c
Fix const anonymous struct. ( #1527 )
2018-12-18 08:15:12 +01:00
0f63874c62
Take back the whole program analysis for null pointers and uninitialized variables
2018-12-18 07:56:33 +01:00
643ddd4caa
Code cleanup
2018-12-17 18:54:32 +01:00
3b328f9187
CheckMemoryLeak: Cleanup the old memory leaks check
2018-12-17 18:12:50 +01:00
f118c22bb6
CheckUnusedVar: Cleanup checker
2018-12-17 17:48:45 +01:00
cf09fd6274
CheckUnusedVar: Code cleanup
2018-12-17 17:28:15 +01:00
fe38e256cc
Fixed #7907 (FN: redundant assignment inside switchcase, overwritten by assignment outside of switch)
2018-12-17 16:10:47 +01:00
bf4e850e11
Fixed #4475 (New check: struct member is assigned a value that is not read)
2018-12-17 15:40:15 +01:00
858d9a18a7
Fixed #3857 (false negative: (style) Variable 'var' is assigned a value that is never used)
2018-12-17 15:16:47 +01:00
025881cf35
Fix issue 8829: Condition '...' is always true (int buf[42]; if(buf != NULL){})
...
This makes arrays non-null in valueflow, so it can catch comparisons against null that is always true:
```cpp
void f(void) {
int buf[42];
if( buf != 0) {;} // << always true
}
```
2018-12-17 06:07:34 +01:00
9b973e652c
Issue 8830: New check: Function argument evaluates to constant value
...
Add a check for function arguments that can be constant:
```cpp
extern void bar(int);
void f(int x) {
bar((x & 0x01) >> 7); // function 'bar' is always called with a '0'-argument
}
```
2018-12-17 06:04:24 +01:00
2090866cd0
template simplifier: remove explicit instantiations after instantiation ( #1523 )
...
* template simplifier: remove explicit instantiations after instantiation
* Fix use after free crash in clang test suite.
2018-12-17 05:58:48 +01:00
c8d688607a
Fixed #8901 (Unused value: const variable initialization)
2018-12-16 19:01:05 +01:00
21eb1c5e22
FwdAnalysis: Fix false negatives for struct members
2018-12-16 18:32:34 +01:00
46a0172480
FwdAnalysis: fix FP in loop
2018-12-16 16:43:04 +01:00
97d2075007
FwdAnalysis: better handling of loops
2018-12-16 11:42:11 +01:00
3af0d73f82
Unused value: Fixed false negatives for loops
2018-12-16 11:18:37 +01:00
3262a3bebe
Add isSameExpression to valueflow analysis
...
Check for same expressions in valueflow analysis.
2018-12-16 07:35:27 +01:00
45dcfad9f9
Fix issue 8899: False positive returnDanglingLifetime when returning by value
...
This fixes the FP from:
```cpp
#include <string>
class MyString
{
public:
MyString(char* source)
{
length = strlen( source );
buffer = new char[length+1];
if( buffer )
{
strcpy( buffer, source );
}
}
char* buffer;
int length;
};
MyString Foo()
{
char arr[20];
sprintf(arr, "hello world");
return arr;
}
void main()
{
MyString str = Foo();
printf(str.buffer);
}
```
2018-12-15 17:58:45 +01:00
1bfe98447a
FwdAnalysis: Tweak possiblyAliased
2018-12-15 11:54:00 +01:00
f26549e5ab
Fixed #8896 (Tokenizer: Anonymous struct)
2018-12-15 08:42:35 +01:00
a1c275436f
Fix #8902 (Crash in TemplateSimplifier) ( #1521 )
2018-12-15 07:52:47 +01:00
37416010ef
Unused value: Fix false positive (ast, {})
2018-12-14 18:56:09 +01:00
be6782d386
Fix FP 8891: Incorrect return scope when using uniform initialization
...
This fixes the FP in:
```cpp
std::string f(const std::string& data)
{
if (data.empty())
return {};
data[0];
}
```
2018-12-14 18:31:10 +01:00
8464085535
UnusedVariables: Fix FP for unknown variable
2018-12-13 21:37:21 +01:00
092d434f91
UnusedVar: Fix FP for array arguments
2018-12-13 21:08:18 +01:00
1f27cd56c0
FwdAnalysis; Code cleanup, isNullOperand
2018-12-13 21:01:33 +01:00
0b4e08cac9
Use FwdAnalysis in UnusedVar. This is still work-in-progress. Merging to master branch so it can be tested.
2018-12-13 18:52:56 +01:00
0f83aff3b8
Improve trailing return type support. ( #1520 )
...
* Improve trailing return type support.
* Partial fix for #8889 (varid on function when using trailing return type)
* Handle operators in templates.
2018-12-13 06:34:10 +01:00
e0b64ec7a9
Fixed #8884 (AST: handle xs... template argument)
2018-12-12 19:00:14 +01:00
6924522475
Refactor methods for identification of numeric literals. ( #1514 )
2018-12-10 12:10:26 +01:00
886aa07ffb
Set version to 1.86.99/1.87 dev
2018-12-08 11:53:37 +01:00
a16f694254
Revert "Fix issue 8884: Regression: False positive: Variable 'f' is reassigned a value before the old one has been used ( #1513 )"
...
This reverts commit 6953dddfa6
2018-12-08 08:25:20 +01:00
5e527bdd08
Update version
2018-12-08 08:17:05 +01:00
6953dddfa6
Fix issue 8884: Regression: False positive: Variable 'f' is reassigned a value before the old one has been used ( #1513 )
2018-12-08 07:33:51 +01:00
a68086c959
Implement hexadecimal float conversion in MathLib::toDoubleNumber ind… ( #1506 )
...
* Implement hexadecimal float conversion in MathLib::toDoubleNumber independent of C99/C++17
* Refactor MathLib::isFloatHex and cure some false results
2018-12-06 22:16:16 +01:00
a90c56ad76
Fixed #8880 (Regression: syntax error for valid C++ template code) ( #1509 )
2018-12-06 21:47:48 +01:00
bd0a935d8a
Tokenizer: Improved handling of compiler extensions that use @ (see https://sourceforge.net/p/cppcheck/discussion/general/thread/8f618cb0a3 )
2018-12-04 19:33:39 +01:00
88c61e8d1e
ValueFlow: Avoid FP when lambda is used
2018-12-04 18:54:26 +01:00
452318dfa4
Remove FwdAnalysis::reads: It is not finished
2018-12-04 18:46:23 +01:00
f5a94ed300
ValueFlow: Fix FP when lambda is called
2018-12-04 18:46:00 +01:00
49413b7d4c
Tokenizer: Add simplifyAt to handle some nonstandard code with @
2018-12-04 16:52:41 +01:00
7ef8f60b07
Fixed #8817 (Change wording in performance/functionStatic)
2018-12-03 18:30:54 +01:00
c03c262058
Preparing FwdAnalysis for ValueFlow usage where we want to fetch read locations
2018-12-02 18:29:16 +01:00
d8fada6702
Refactoring FwdAnalysis
2018-12-02 17:42:18 +01:00
6734571f06
Refactoring: Create FwdAnalysis class in astutils
2018-12-02 17:01:52 +01:00
61878c5e11
Add null pointer check to fix SEGFAULT ( #1499 )
...
* Add null pointer check to fix segfault
* Add first test case to reproduce problem
2018-12-02 14:36:01 +01:00
3e1b34dd8f
Fix FPs and crashes with byDerefCopy ( #1503 )
...
* Fix FP when inserting a range into a container
* Formatting
* Fix crash
2018-12-02 14:31:31 +01:00
ba564076db
Fixed #7907 (FN: redundant assignment inside switchcase, overwritten by assignment outside of switch)
2018-12-02 14:04:59 +01:00
88785dda02
Refactoring the redundant assignments check
2018-12-02 11:41:27 +01:00
8087cfed5d
Fixed #8627 (Tokenizer::setVarIdPass2: constructor parameter)
2018-12-02 09:28:05 +01:00
b841b818d2
Fix 8872: Crash in LifetimeStore when there is no scope for variable
...
This fixes crash in:
```cpp
struct edit_line_paste_over {
void operator()(agi::Context *c) override {
paste_lines(c, true, [&](AssDialogue *new_line) -> AssDialogue * {
AssDialogue *ret = paste_over(c->parent, pasteOverOptions, new_line, static_cast<AssDialogue*>(&*pos));
return ret;
});
}
};
```
2018-12-01 19:11:26 +01:00
67dd822910
Fix FP in lifetime anlaysis: Dont decay std array
...
This will fix FP with:
```cpp
std::array<char, 1> f() {
std::array<char, 1> x;
return x;
}
```
2018-12-01 19:09:19 +01:00
229c45e7f8
Fix issue 8865: FP with dangling lifetime
...
This fixes:
```cpp
void f(uint32_t event, unsigned long op, const xen_ulong_t *args)
{
struct __packed {
uint32_t op;
uint32_t args[6];
} d;
uint32_t *a = d.args;
}
```
2018-12-01 19:07:46 +01:00
2c803a1ead
Revert " #6514 Try to support hexadecimal floating numbers in MathLib::toDoubleNumber"
...
This reverts commit a73decf7e4
2018-12-01 19:01:51 +01:00
3fadefe318
Revert "Add missing include"
...
This reverts commit a2b6eaf311
2018-12-01 19:00:42 +01:00
96929c53c0
Fixed #8873 (Add syntaxError when there is no RHS for +-)
2018-12-01 17:29:41 +01:00
f42648fe22
Fixed #8114 (false positive: Address of local auto-variable assigned to a function parameter.)
2018-12-01 10:11:02 +01:00
a2b6eaf311
Add missing include
2018-12-01 01:36:04 +01:00
a73decf7e4
#6514 Try to support hexadecimal floating numbers in MathLib::toDoubleNumber
2018-12-01 00:50:26 +01:00
cad4e4ab20
Fix handling of `sizeof &var` ( #1498 )
...
Fixes https://trac.cppcheck.net/ticket/8870
2018-11-30 13:53:58 +01:00
3d024f3f6d
template simplifier: fix function forward declaration bug for constructor with initializer list. ( #1497 )
2018-11-29 06:24:28 +01:00
ff469867e7
Refactor CheckStl::stlOutOfBounds
2018-11-28 20:30:58 +01:00
dd94bfede9
CheckStl: Improving checking of container access out of bounds
2018-11-28 19:27:28 +01:00
6493db6ca2
Try to clarify message for container access out of bounds a little more.
2018-11-28 13:58:01 +01:00
0f2f807798
Improve the container out of bounds messages. They are still not perfect.
2018-11-28 07:03:56 +01:00
13c6489571
Redundant variable assignment: Fix FN for struct members
2018-11-27 18:22:22 +01:00
32c05fef92
Redundant assignment: check that --enable=style has been used.
2018-11-27 13:04:50 +01:00
0ad757fc78
valueFlowLifetime: Try to cleanup the loop a little. No functional change is intended.
2018-11-27 06:43:59 +01:00
5a6f9ac82a
Fix FP with strcmp and terminating conditions
2018-11-27 06:39:29 +01:00
f2660ed203
template simplifier: fix instantiated template names in forward declarations ( #1495 )
...
This now handles the revised example code in #8603 .
2018-11-27 06:17:04 +01:00
2887ee10c0
Fixed #8800 (Possible variable assignment ignored in boolean expression)
2018-11-26 14:00:03 +01:00
affd03f1d6
Minor tweak for redundantVariableAssignment
2018-11-26 11:16:50 +01:00
e20079a5d9
template simplifier: fix 3 function forward declaration bugs ( #1493 )
...
* fix support for multi token types
* fix support for const member functions
* fix duplicate template parameters sometimes being inserted
2018-11-26 06:23:12 +01:00
86f9fb778b
Fixed #8864 (compile commands: handle define with string value)
2018-11-25 15:09:23 +01:00
0160f80ffe
redundantVarAssignment: avoid FPs when loops are used
2018-11-25 10:32:30 +01:00
22f736eae2
redundant variable assignments: avoid FPs for initializations
2018-11-25 08:49:09 +01:00
2f66b31d43
redundantAssignmentInSwitch: fix false positive when there is goto
2018-11-24 21:39:01 +01:00
a3921ea861
Refactor valueFlowAfterCondition
...
So this unifies the `valueFlowAfterCondition` so it re-uses more code between checking for integers and container sizes. This should make valueFlowContainer more robust.
It also extends valueflow to support container comparisons such as `if (v.size() < 3)` or `if (v.size() > 3)` using the same mechanism that is used for integers.
2018-11-24 10:07:12 +01:00
866688c70a
Rewriting redundantAssignment checker
2018-11-24 10:03:54 +01:00
b049a31e7c
Refactoring; Use visitAstNodes
2018-11-23 20:41:39 +01:00
2b09354b05
Refactoring; use visitAstNodes
2018-11-23 20:33:31 +01:00
2214ef5359
Refactor isVLAIndex
2018-11-23 20:23:20 +01:00
8f164d9602
Refactoring; use visitAstNodes
2018-11-23 19:22:53 +01:00
52f9650533
Refactoring: Use visitAstNodes
2018-11-23 19:16:19 +01:00
745b58de26
Refactoring: Use visitAstNodes
2018-11-23 17:18:07 +01:00
358f0c473d
Modify template simplifier to add forward declarations of some templa… ( #1489 )
...
* Modify template simplifier to add forward declarations of some template functions so symbol database can make sense of the expanded templates.
* Fix travis.
2018-11-23 11:36:09 +01:00
ecb3c04fba
astutils: Add function that visits nodes in AST tree
2018-11-23 06:53:43 +01:00
f16d9d7d90
Issue 6175: Check lifetime of a variables stored in containers and member variables
...
Cppcheck will now warn for all cases here:
```cpp
#include <vector>
class CCluster {};
class MyClass
{ public:
std::vector<CCluster*> m_cluster;
void createCluster()
{
CCluster cl;
CCluster* pcl=&cl;
m_cluster.push_back(pcl);
}
void createCluster2()
{
CCluster cl;
m_cluster.push_back(&cl);
}
CCluster* Cluster()
{
CCluster cl;
CCluster* pcl=&cl;
return pcl;
}
CCluster* Cluster2()
{
CCluster cl;
return &cl;
}
};
```
2018-11-21 08:43:57 +01:00
9d8e5e36eb
Added a few TODO comments
2018-11-20 22:57:01 +01:00
8227188786
comment out old memleak checking. maybe it can be removed.
2018-11-20 18:40:18 +01:00
a5af5b2d08
Revert "Fixed #7619 (False positive: Redundant assignment)"
...
There is a crash I need to look into.
2018-11-20 06:23:43 +01:00
c899792232
Fixed #7619 (False positive: Redundant assignment)
2018-11-19 21:23:36 +01:00
a8cbbe0e16
Fixed #8816 (FP shadowLocal - variable shadows a template function?)
2018-11-19 07:00:15 +01:00
9ef3c79bc6
Fixed #8851 (Crash in valueFlowContainerForward (daca@home: pbbam))
2018-11-18 20:18:55 +01:00
f2b26a488a
relative paths: another fix for {code}
2018-11-18 16:15:09 +01:00
982f7dc2b3
relative paths: show {code} properly when there are relative paths
2018-11-18 16:08:08 +01:00
7ef119cbfc
Fix FPs in lifetime checker
...
This fixes several FPs in the lifetime checker. It also fixes issue [8846](https://trac.cppcheck.net/ticket/8846 ):
```cpp
int * f(int a[])
{
return a;
}
```
2018-11-17 09:41:59 +01:00
d376e9f245
Track variable lifetime through function calls ( #1481 )
2018-11-16 06:12:28 +01:00
5d086d60ad
Fixed #8844 (snd: Wrong varid and ast)
2018-11-14 21:05:09 +01:00
69f2e0938a
VarId: Improved varids for struct members ( #8844 )
2018-11-14 19:11:35 +01:00
39c04b650d
astyle formatting
...
[ci skip]
2018-11-14 19:10:52 +01:00
69f6100d83
Fixed #8339 (false positive: unread variable despite delete is used on it)
2018-11-14 17:04:21 +01:00
54453c5802
Fix FP when copying pointer to string ( #1479 )
2018-11-14 06:59:25 +01:00
ac242b69d6
Refactoring: Use range for loops
2018-11-14 06:58:21 +01:00
f0c86b9d14
Fix issue 8842: Crash in valueFlowTerminatingCondition on incomplete code ( #1480 )
2018-11-14 06:23:45 +01:00
e839001f3d
Fix warnings ( #1478 )
2018-11-14 06:14:04 +01:00
d97851b9db
change severity for 'unknown macro' to error for now.
2018-11-13 21:08:45 +01:00
152be6df63
Report 'unknown macro' as information message with id unknownMacro
2018-11-13 20:14:56 +01:00
a50eb56d8d
Extend 'Unknown macro' check
2018-11-13 18:30:40 +01:00
e6a5e0f752
Warn when there is a unknown macro
2018-11-13 16:49:15 +01:00
69e7392ce2
Fixed #8449 (False positive 'constStatement' when initializing std::unordered_map)
2018-11-12 18:10:34 +01:00
3d629944da
Fixed #8100 (False positive when method/function defines lambda with pointer return value)
2018-11-12 11:28:38 +01:00
f096d7f474
astyle formatting
...
[ci skip]
2018-11-12 10:08:57 +01:00
0e11bb07c8
Extend lifetime analysis to pointer usage ( #1477 )
...
* Use lifetime analysis for pointers as well
* Fix issue 1143: Pointer to local array
* Update message when using pointers
* Avoid infinite loop in tracing lifetimes
2018-11-12 10:08:17 +01:00
717a2d370c
astyle formatting
...
[ci skip]
2018-11-12 06:32:02 +01:00
58882b1f14
Fixed #8261 (False positive "Statements following return, break, continue, goto or throw will never be executed.")
2018-11-12 06:31:17 +01:00
5bda102897
Fix warnings ( #1476 )
2018-11-12 06:08:57 +01:00
68d6b96878
Diagnose invalid lifetimes ( #1475 )
...
* Add check for invalid lifetimes
* Fix FP with member variables
* Dont forward lifetime values in subfunction
* Update message to use out of scope
2018-11-11 16:43:54 +01:00
bdd4623124
valueFlowLibraryFunction: fix crash found with daca@home
2018-11-11 16:41:01 +01:00
3f55707b30
Fixed #8064 (Taking the address of a moved variable is not accessing it)
2018-11-11 12:47:27 +01:00
e46691597e
Fix issue 8841: FP knownConditionTrueFalse - Dont treat unknown function as noreturn ( #1474 )
...
* Fix issue 8841: Dont treat unknown function as noreturn
* Add a parameter to set default value when the function is unknown
2018-11-11 08:04:01 +01:00
ee2dfb6604
Fixed #8058 (False positive returnAddressOfAutoVariable within lambda)
2018-11-11 07:52:38 +01:00
93cde415a7
Fixed #7988 (variable in condition gets wrong varid)
2018-11-11 07:50:25 +01:00
148f257c6b
Fixed #8838 (False positive on overridden virtual function that is marked both const and final)
2018-11-10 21:57:50 +01:00
8327aab127
Fixed #8628 (Wrong AST in case)
2018-11-10 21:32:06 +01:00
d5a478d5c5
astyle formatting
...
[ci skip]
2018-11-10 21:30:01 +01:00
4cef2e94e7
Fixed #8368 (FP redundantAssignment - assignment has unknown side-effects)
2018-11-10 18:42:13 +01:00
69e6e11844
Fix a template simplifier namespace bug in #7145 ( #1473 )
...
* Fix a template simplifier namespace bug in #7145
* Refactor template simplifier to only call getTemplateDeclarations once per loop.
2018-11-10 16:41:14 +01:00
1ffcc6b730
Add initial lifetime checker ( #1448 )
...
* Inital valueflow lifetime checker
* Forward values
* Add initial tests
* Fix deplicate messages
* Fix traversing nested lambdas
* Turn test case into a todo
* Skip if returning a container
* Fix FP when using references
* Add missing header
* Fix FP from broken scopes
* Fix FP with static variable
* Add test for more FPs
* Parse lambda functions
* Check for capture by value
* Add tests for using a container and lambda together
* Fix cppcheck errors
* Add test for nextAfterAstRightmostLeaf
* Add valueflow tests
* Update error message
* Check for correct lambda token
* Improve error path reporting
* Fix hang when parsing arrays that look almlost like lambdas
2018-11-10 16:40:40 +01:00
e302e6e7a1
Fix symbol database argsMatch to skip all redundant type information (class, struct, union, enum) ( #1472 )
2018-11-09 15:54:17 +01:00
a3e717bea9
Use functions instead of comparing with enum ( #1471 )
...
* Use isComparisonOp() instead of enum
* Use isAssignmentOp() instead of enum
2018-11-09 06:30:41 +01:00
67fe99fcd9
Fix symbol database argsMatch function and its usage so qualified types are handled properly. ( #1470 )
...
* Fix symbol database argsMatch function and its usage so qualified types are handled properly.
* Remove assert.
2018-11-09 06:11:48 +01:00
36e663e250
Fix issue 8839: FP knownConditionTrueFalse - condition inside a while-clause ( #1469 )
2018-11-09 06:09:51 +01:00
17a8a4898d
Fix another template simplifier namespace bug. ( #1467 )
...
* Fix another template simplifier namespace bug.
* Add missing forward declarations caused by token bug.
2018-11-07 21:25:42 +01:00
7373be2bfa
Add a pass in valueflow for terminating conditions ( #1323 )
...
* Add valueflow for terminating conditions
* Add valueflow test
* Dont check for same expressions for now to avoid double diagnostics
* Check nesting
* Add more tests
* Ensure conditions happen in order
* Check for null
* Add error path
* Support same expression check as well
* Use early continue
* Skip checking the same token
* Avoid double condtion diagnosis
* Fix FP when in switch statements
* Fix FP when time function
* Skip conditional escapes
* Use simpleMatch
* Fix naming
* Fix typo
2018-11-07 06:49:07 +01:00
35d18be311
ValueFlow: Refactoring, removed redundant assignment
2018-11-06 07:02:20 +01:00
c966f31183
Fixed #8835 (friend class and non-empty constructor: Uninitialized members not reported) ( #1466 )
2018-11-06 06:44:08 +01:00
00340efc57
ValueFlow: Refactoring valueFlowCallFunction
2018-11-06 06:38:26 +01:00
9b67e680ae
Fix template simplifier namespace support. ( #1464 )
2018-11-05 19:55:21 +01:00
ca19894a04
ValueFlow: In evaluate handle correlated values
2018-11-05 18:07:35 +01:00
da44ce0b5d
ValueFlow: evaluate strlen and char literals better
2018-11-05 16:52:12 +01:00
307a19d17e
Refactoring: Use range for loop
2018-11-05 09:49:28 +01:00
2275f05f65
Fixed #8833 (false negative: No 'return' statement in non-void function causes undefined behavior.) ( #1463 )
2018-11-05 06:55:30 +01:00
977fdd88a9
ValueFlow: Fix a few issues in 'evaluate'
2018-11-05 06:53:48 +01:00
8a54420274
ValueFlow: Try to handle multiple argument values in <returnValue> evaluation
2018-11-04 20:52:12 +01:00
dd9a1e890b
valueFlowRightShift: Do not perform analysis when rhs is negative
2018-11-04 17:13:23 +01:00
efd92fd714
Refactoring: reuse utility function in SymbolDatabase
2018-11-04 13:29:29 +01:00
6878de2c5e
ValueFlow: getExpressionRange, valueFlowRightShift
2018-11-03 23:25:46 +01:00
8a05be34f8
Fix Cppcheck shadow variable warning
2018-11-03 19:41:25 +01:00
f8b0584f6a
replace 'constexpr' with 'const'
2018-11-03 19:22:51 +01:00
fb76ef1db1
Fixed testrunner
2018-11-03 18:59:55 +01:00
66ca03fa0c
Fixed #8826 (false negative: Invalid memory address freed)
2018-11-03 18:55:20 +01:00
ef35b86b4a
Multipass Valueflow
2018-11-03 15:53:24 +01:00
6138294e3d
Fixed #8818 (AST broken: restrict)
2018-11-03 11:05:38 +01:00
9741239b2f
Fixed #8824 (False positive: uninitialized variable (regression))
2018-11-03 10:31:55 +01:00
acf2035a53
Typos found by running "codespell" ( #1461 )
2018-11-03 07:34:27 +01:00
a4afcb5995
Revert "Fixed #8818 (AST broken: restrict)"
...
This reverts commit e7d61f399a
2018-11-02 21:07:37 +01:00
0cc4555337
Revert "Tokenizer: Do not remove 'constexpr'"
...
This reverts commit 2f400b40ba
2018-11-02 21:07:24 +01:00
2f400b40ba
Tokenizer: Do not remove 'constexpr'
2018-11-02 20:32:12 +01:00
e7d61f399a
Fixed #8818 (AST broken: restrict)
2018-11-02 20:28:49 +01:00
614a252704
Fix Match warning
2018-11-02 20:14:34 +01:00
5de683ec49
Container size: Fix false positive
2018-11-02 20:10:40 +01:00
16cc20a232
ValueFlow: Better handling of container size values
2018-11-02 18:28:32 +01:00
3798feecad
TemplateSimplifier : Remove 'class|struct' in template arguments
2018-11-02 14:49:40 +01:00
869e4ba6ab
Add check for return value of boolean function ( #1451 )
...
* Add check for return value of boolean function
The rule for converting an integer to a boolean is that 0 is mapped to
false and everything else is mapped to true. There is nothing wrong with
the following code (according to the standards):
bool f()
{
return -1;
}
and neither gcc nor clang will warn about it. However, it's a bit
confusing. This commit adds a check that warns when a value other than 0
or 1 is returned from a boolean function (similar to the existing check
that functions with boolean arguments are only passed 0 or 1). Since the
code is perfectly legal, set the severity to "Style".
* Use early continue and remove some braces
* Add testcase with multiple returns
* Avoid null pointer dereference in case of return without operand
* Skip lambdas
Add TODO-test cases that shows FPs when the return type of lambdas are
specified explicitly (this is a problem with findLambdaEndToken).
* Enable testcases
2018-11-01 11:08:16 +01:00
88008fedb1
findLambdaEndToken handle explicit type ( #1458 )
...
* findLambdaEndToken: Add tests
* Add handling of explicit return in findLambdaEndToken()
* Use AST in findLambdaEndToken()
* Fix ast when lambda is mutable
2018-10-31 12:36:08 +01:00
fafd0742d4
Fix FPs with return conditions ( #1455 )
...
* Fix 8815: FP with identical inner conditions
* Fix issue 8801: FP when not returning a bool
* Fix FP
* Add missing semicolon
* Move returnVar
2018-10-31 09:47:48 +01:00
c03d32b429
ValueFlow: Improve containerSize handling of string like classes
2018-10-28 19:14:00 +01:00
8beb42cc90
astyle formatting
...
[ci skip]
2018-10-28 17:37:19 +01:00
2b6cc33dc6
Fix issue 8757: Throw syntax error on invalid code ( #1378 )
...
* Fix issue 8757: Throw syntax error on invalid code
* Fix FP with lambda returns
* Remove double percent
* Check more keywords
* Skip preprocessor directives
* Check for valid PP directive
* Fix preprocessor check
* Dont check for preprocessor directives
2018-10-28 17:17:53 +01:00
f5811c6818
Fix issue 8732: Syntax error when using enable_if ( #1453 )
...
* Fix issue 8732: Syntax error when using enable_if
* Fix FPs
* Use simpleMatch
2018-10-28 17:16:31 +01:00
06ede9c239
ValueFlow: handle x+=y for containers
2018-10-27 18:38:04 +02:00
adbbadec7f
Fixed #8798 (template simplifier: wrong simpifications for namespaces) ( #1452 )
2018-10-26 14:20:13 +02:00
d206047b84
Fixed #8794 - Memory leak false positive triggered by !(x != NULL) ( #1450 )
2018-10-26 06:21:45 +02:00
86782af43c
Fix Cppcheck warning
2018-10-25 07:15:32 +02:00
044c4b7fbb
Refactoring: Use range for loop
2018-10-25 06:14:27 +02:00
b8e8b12783
Fixed #8797 (exprDependsOnThis handle method call in non-inline method)
2018-10-24 20:17:00 +02:00
2348dcde6c
#8801 : Quick fix for false positives
2018-10-24 19:57:50 +02:00
ea4e6a60f7
Fix template simplifier from deleting the same declaration multiple times ( #1449 )
...
Found by running valgrind on testrunner. May fix #8808 .
2018-10-24 19:32:37 +02:00
0763fdbfad
Copy template default argument values from forward declaration to declaration. ( #1447 )
...
It is possible to define default template parameter values in forward
declarations and not define any in the actual declaration. Cppcheck
ignores forward declarations and only uses the default values in the
actual declaration so default values in forward declarations are copied
to the actual declaration when necessary.
2018-10-24 14:38:59 +02:00
be1ff268c0
Refactoring: Use range for loops
2018-10-24 11:29:15 +02:00
2e4f317c0b
Revert "Remove FIXME"
...
This reverts commit 749699c632
2018-10-22 21:03:30 +02:00
15160f1691
Fixed #8788 (AST Broken error from assigning lambda to variable)
2018-10-22 17:25:01 +02:00
749699c632
Remove FIXME
2018-10-22 12:45:34 +02:00
dc38681a56
Remove FIXME in AST validation. Ticket #8749
2018-10-22 11:37:24 +02:00
c483bcb12b
Fixed testrunner
2018-10-22 00:28:09 +02:00
f9b132e831
Tokenizer::simplifyTypedef: Fix bug with arrays
2018-10-21 21:15:34 +02:00
64fbffc90d
astyle formatting
...
[ci skip]
2018-10-21 20:28:46 +02:00
edde0eedaa
Fix FP issue 8801: Condition 'a+b' is always true ( #1444 )
2018-10-21 08:04:00 +02:00
2989c44f59
Enable checking duplicate expressions across associative operators ( #1445 )
...
* Enable checking duplicate expressions across associative operators
* Remove bitshift operators and check for streamRead
2018-10-21 07:09:20 +02:00
14afc3fd3a
Fixed #8796 (Tokenizer::simplifyCompoundAssignment: Wrong simplification of return)
2018-10-20 21:33:43 +02:00
277e0f1a8f
Fix Cppcheck error message
2018-10-20 15:28:34 +02:00
29feaa5a51
Tokenizer: Avoid constant folding
2018-10-20 10:51:50 +02:00
d265a0d6ab
Fixed #8798 (SymbolDatabase: Inner unnamed union)
2018-10-20 09:43:08 +02:00
e2ea8bc2b0
astyle formatting
...
[ci skip]
2018-10-20 09:28:28 +02:00
0858488825
insecureCmdLineArgs: Fixed FN in case strdup() copies argv[]. ( #1438 )
...
* insecureCmdLineArgs: Fixed FN in case strdup() copies argv[].
* Formatted the code. There are no functional changes intended.
* Changes due to review comments from Daniel.
2018-10-19 11:04:15 +02:00
402d0c565f
Fix false positive: Invalid string argument with array ( #1439 )
2018-10-19 07:48:47 +02:00
IOBYTE
Daniel Marjamäki
Sebastian
Frank Zingsheim
Oliver Stöneberg
Pavol Misik
Paul Fultz II
Rikard Falkeborn
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amai2012
Carlo Marcelo Arenas Belón
PKEuS
ivangalkin
Kamil Dudka
Simon Martin
Lauri Nurmi
Robert Reif
juremenart
practicalswift
amai2012
Oliver Schode
rebnridgway
PKEuS
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Colomban Wendling
Armin Müller
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