a08a9c1349
Switch to use lifetime analysis for iterators and pointers to invalid containers
...
This will diagnose more issues such as:
```cpp
void f(std::vector<int> &v) {
auto v0 = v.begin();
v.push_back(123);
std::cout << *v0 << std::endl;
}
```
2019-07-18 10:56:44 +02:00
90a215af0e
Rephraze performance message. /would be faster/could be faster/ to indicate that Cppcheck is not _sure_ that it would be faster
2019-07-17 16:06:10 +02:00
9973db3a71
Modernize: Use enum class for Library::Action and Library::Yield
2019-07-17 11:39:30 +02:00
5eff1b0f4a
Replace 'unsigned' with 'nonneg' in checkstl
2019-07-15 14:05:23 +02:00
fe04c15c9e
CheckStl: Modernize the recommendations. string::starts_with is more intuitive than string::compare
2019-05-05 10:35:44 +02:00
091f4bcf8d
Add check for unnecessary search before insertion
...
This will warn for cases where searching in an associative container happens before insertion, like this:
```cpp
void f1(std::set<unsigned>& s, unsigned x) {
if (s.find(x) == s.end()) {
s.insert(x);
}
}
void f2(std::map<unsigned, unsigned>& m, unsigned x) {
if (m.find(x) == m.end()) {
m.emplace(x, 1);
} else {
m[x] = 1;
}
}
```
In the case of the map it could be written as `m[x] = 1` as it will create the key if it doesnt exist, so the extra search is not necessary.
I have this marked as `performance` as it is mostly concerning performance, but there could be a copy-paste error possibly, although I dont think thats common.
2019-05-02 11:04:23 +02:00
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
3615eac347
Move useStlAlgorithm to normal checking ( #1741 )
2019-03-15 06:15:56 +01:00
34711bcb93
Remove unused functions
2019-03-11 12:23:22 +01:00
f9fe6cc96a
STL: Removed auto_ptr checking.
2019-03-09 07:48:01 +01:00
bd7790fd8c
Update copyright year
2019-02-09 07:24:06 +01:00
d18f5d8709
CTU: Reuse CheckNullPointer::isPointerDeRef in the nullpointer isUnsafeUsage
2018-12-29 09:26:57 +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
4983a6a5dc
astyle formatting
2018-10-18 20:08:32 +02:00
0a9be3e734
Improve STL iterators checking ( #1380 )
...
* Improve STL interators checking
* Improve error messages for container iterators from different scopes
* Mini refactoring
* Replace hardcoded pattern to ValueType::Type::ITERATOR
* Error messages improvements, more tests and refactoring
* Refactoring after code review
* Put getting operand data into separate function
* Update getErrorMessages and iterator errors ids
* Refactoring
* Fix error
* Refactoring, early return implementation
* Delete redundant code
* Tiny changes in comments
2018-10-17 06:36:51 +02:00
053b0d1654
STL: enable inconclusive warnings with --inconclusive
2018-10-09 20:10:43 +02:00
4ed22f1ff8
Fix some FPs in mismatchingContainerExpression ( #1402 )
2018-09-30 14:49:58 +02:00
f65cf220ba
Fix false positives in unknownEvaluationOrder when using followVar ( #1391 )
...
Fix false positives in unknownEvaluationOrder when using followVar
2018-09-28 08:38:24 +02:00
d08b39c915
Improved const correctness of local variables. There are no functional changes intended. ( #1392 )
2018-09-23 20:24:51 +02:00
f965e5873d
checkstl: remove uused variable 'beginCondTok'
...
Was:
lib/checkstl.cpp:2022:30: warning: unused variable 'beginCondTok' [-Wunused-variable]
const Token *beginCondTok = condBodyTok->previous()->link();
^
also run dmake to update Makefile
2018-09-22 21:10:21 +02:00
d43cd56afd
Show line number when suggesting std::transform ( #1385 )
2018-09-21 10:38:30 +02:00
1e347f6cde
Initial check for recommending algorithms ( #1352 )
...
Add initial check for loop algorithms
2018-09-19 18:58:59 +02:00
eb07280075
Fix issue 8743: FP when derefencing iterators ( #1376 )
2018-09-12 17:33:53 +02:00
772939476d
Remove inconclusive warnings about reading empty stl container. We have better ValueFlow-based checking.
2018-09-09 11:25:04 +02:00
f7e7e9bd3c
Fix issue 8736: Iterators to containers from different expressions (a.begin().x == b.begin().x) ( #1370 )
2018-09-07 07:08:02 +02:00
756c1d8de7
Fixed #8341 (error:iterators not correct)
2018-09-02 21:04:45 +02:00
4d0262fd0a
astyle formatting
...
[ci skip]
2018-08-23 06:06:58 +02:00
f79849f6ba
Diagnose mismatching iterators used together in operators ( #1343 )
...
* Diagnose mismatching iterators used together in operators
* Fix fp getting iterator expression in function call
2018-08-21 06:34:30 +02:00
0e30bdef9d
containerAccessOutOfBounds: Fix FPs for maps etc
2018-08-11 18:57:21 +02:00
f0c1d49abf
Fix Cppcheck warning
2018-08-11 14:45:12 +02:00
1f427eda8f
CheckStl: rewrite and refactor out of bounds checker
2018-08-11 11:40:48 +02:00
81f54f7094
Fixed #8681 (ValueFlow: Container size)
2018-08-10 11:29:16 +02:00
b707f6e476
Refactoring; use range for loops
2018-08-10 06:47:18 +02:00
bcdd58de0b
astyle formatting
...
[ci skip]
2018-08-05 10:48:28 +02:00
ed197f235a
Fix issue 4693: Diagnostic when using the same iterators to an algorithm ( #1326 )
...
* Fix issue 4693: Diagnostic when using the same iterators to an algorithm
* Update classinfo
2018-08-05 09:10:54 +02:00
0a66f5c4f9
astyle formatting
...
[ci skip]
2018-07-26 22:24:00 +02:00
e2a4b1706c
Refactoring CheckStl::mismatchingContainers; Use AST
2018-07-26 22:23:37 +02:00
86721f5b91
small refactorings
2018-07-26 22:08:05 +02:00
d471c27502
astyle formatting
...
[ci skip]
2018-07-26 22:03:49 +02:00
0d35a96594
Improve checking of mismatch iterators ( #1293 )
2018-07-26 22:00:48 +02:00
e552737028
Refactoring: Use range for loop
2018-07-13 16:46:29 +02:00
b398398dec
Fixed #8360 (false positive "Ineffective call of function 'empty()'")
2018-07-10 22:58:02 +02:00
79ffe1d4fc
Rename _tokenizer, _settings, _errorLogger
2018-06-16 16:10:28 +02:00
ca8e19c96d
SymbolDatabase: Refactor SymbolDatabase: variable list
2018-04-28 09:38:33 +02:00
f336c2efe7
Refactoring; Renamed Scope::classStart and Scope::classEnd
2018-04-27 22:36:30 +02:00
55983e2a0b
#8509 Uniform initialization ignored for iterator
2018-04-26 08:57:25 +02:00
e95ff8c7b6
Avoiding emplace
2018-04-14 19:24:35 +02:00
d2146844dd
Refactorizations:
...
- Replace several push_back-calls by emplace_back
- Replace some x = x.substr(0, y) calls by x.erase(y)
2018-04-11 09:44:35 +02:00
b15cc3f236
Refactorization: Replace several push_back-sequences by initializer lists
2018-04-09 09:54:39 +02:00
a0906140a6
Suppressions: New extensible Suppressions xml format that allow more attributes. To start with it also allows symbolName.
2018-04-09 06:43:48 +02:00
e2002db78d
Replaced make_container by C++11 initializer lists
2018-04-08 23:03:44 +02:00
b6504c70ca
Improve constness
2018-04-04 21:51:31 +02:00
c4caee6b18
Updated copyright year
2018-01-14 15:37:52 +01:00
2ef7c35cfd
Function isIterator() did not to set returned parameter always
2018-01-12 09:36:14 +01:00
323e9ab509
astyle formatting
...
[ci skip]
2018-01-11 09:31:16 +01:00
b17807c568
#6572 False positive eraseDereference - in iterator class - flag error inconclusive if iterator is not STL type
2018-01-10 09:37:21 +01:00
83b87b54b4
Fixed #8191 (False positive iterators regression)
2018-01-06 22:25:13 +01:00
61767d4932
Fixed #8125 (incorrect error iterators)
2018-01-06 16:08:12 +01:00
a8700f5622
Remove redundant parts of conditional expressions ( #988 )
...
All issues were found with PVS-Studio:
V560 A part of conditional expression is always true: tok. astutils.cpp 407
V560 A part of conditional expression is always true: size > 0. checkbufferoverrun.cpp 709
V547 Expression 'secondTrue' is always true. checkcondition.cpp 1013
V547 Expression 'firstTrue' is always true. checkcondition.cpp 1020
V560 A part of conditional expression is always true: !scan. checkio.cpp 1036
V560 A part of conditional expression is always true: scope->function. checknullpointer.cpp 395
V560 A part of conditional expression is always true: tok2. checkstl.cpp 268
V560 A part of conditional expression is always true: par. tokenize.cpp 9440
V547 Expression '!erased' is always true. symboldatabase.cpp 3990
2017-11-03 10:39:57 +01:00
9d27917fea
c++98 compatibility
2017-10-08 14:16:18 +02:00
ba8222de1c
ValueFlow: Put 'inconclusive' state in the ValueKind. A value can't be both known and inconclusive.
2017-09-20 22:41:36 +02:00
d79762cfc3
Fixed #7449 (reademptycontainer (inconclusive) when variable changed in function )
2017-09-15 10:49:58 +02:00
97125acabd
Fixed #7365 (False positive: Use of erased iterator)
2017-09-08 09:45:30 +02:00
1ecefa045a
Fixed #8194 (False positive reademptycontainer - range based loop)
2017-09-02 22:22:32 +02:00
b7f9e7ed1d
negativeContainerIndex: avoid crash when AST is wrong
2017-08-22 12:30:43 +02:00
2679b576c2
Fixed #1693 (false negative: std::vector, negative index)
2017-08-22 11:04:02 +02:00
e977cea04c
Fix issue detected by Coverity, either null pointer check is useless or there is null pointer dereference
2017-08-02 08:24:16 +02:00
abf525e46d
Fix Cppcheck warning
2017-07-29 11:58:00 +02:00
a4dd8f0aa4
modernize, use nullptr
2017-07-27 18:36:33 +02:00
5ae962194d
revert mode change for lib/checkstl.cpp
2017-07-26 23:51:30 +02:00
27af3edc5b
CheckStl: Safer use of AST
2017-07-26 23:43:39 +02:00
eb288ec2a1
CheckStl: Use AST to handle iterator comparisons better
2017-07-26 23:13:01 +02:00
32940c023a
Refactoring: Use continue in loop
2017-07-26 20:32:14 +02:00
2d4f64027a
Refactoring: Use continue in loop
2017-07-26 20:29:13 +02:00
2f38d3d80e
CheckStl: Use ValueType
2017-07-26 20:19:36 +02:00
f4ce49d883
ENH: perfomance: using clear() and empty() more faster for stl containers
2017-06-02 22:38:00 +04:00
28aa939d69
iwyu - include what you use
2017-05-27 04:33:47 +02:00
b345c430fe
CheckStl::readingEmptyStlContainer(): Skip over lambdas ( #8055 )
2017-05-07 08:15:58 +02:00
b1f4bd7504
Refactorization: Reimplemented Settings::_enabled as a bitfeld instead of std::set ( #7995 )
2017-04-11 11:49:26 +02:00
279425499e
Fixed #7930 (Improve check: Missing stlcstr warning for reference variable)
2017-03-01 02:03:08 +01:00
d840005f06
Fixed #7656 (stlcstr - false positive)
2017-02-26 17:25:32 +01:00
cfac3b457d
Several small refactorizations
2016-12-06 22:12:02 +01:00
0e9810b7f6
CheckStl: validation of iterators returned from functions
2016-11-01 14:08:42 +01:00
9c1a08ca84
move std function information from checkstl to std.cfg
2016-10-27 19:24:24 +02:00
0b76aa0f24
checkstl: refactoring. make data static instead of anonymous.
2016-10-27 18:54:15 +02:00
892596681b
Try to make Travis happy
2016-10-27 11:53:37 +02:00
f6a5f6bb61
CheckStl::mismatchingContainers: Refactoring, use Library instead of hardcoding
2016-10-27 10:25:45 +02:00
28f1222dc2
CWE mapping of useAutoPointerMalloc, uselessCallsCompare, uselessCallsSwap, uselessCallsSubstr, uselessCallsEmpty, uselessCallsRemove, derefInvalidIterator, reademptycontainer, multiplySizeof, divideSizeof, stringLiteralWrite, incorrectStringCompare, literalWithCharPtrCompare, charLiteralWithCharPtrCompare, incorrectStringBooleanError, staticStringCompare, stringCompare, signConversion, truncLongCastAssignment, truncLongCastReturn, unusedFunction, unusedVariable, unusedAllocatedMemory, unreadVariable, unassignedVariable, unusedStructMember, postfixOperator, va_start_wrongParameter ( #824 )
...
Add an optional extended description…
2016-09-03 00:31:35 +02:00
87409ea6b3
Running astyle; Improved testing of std::find; std.cfg: Added support for istream::read and ifstream::read.
2016-08-25 19:17:07 +02:00
1db24ee070
CWE mapping of signedCharArrayIndex, unknownSignCharArrayIndex, suspiciousCase, suspiciousEqualityComparison, duplicateBranch, duplicateExpressionTernary, suspiciousSemicolon, incompleteArrayFill, redundantPointerOp, unusedLabelSwitch, unusedLabel, unknownEvaluationOrder, stlIfFind, useAutoPointerCopy
2016-08-25 15:40:23 +01:00
c8667096e0
Fixed #7658 (False positive: Same iterator is used with different containers)
2016-08-14 10:49:48 +02:00
a8df08f22b
Fixed #7659 (crash: Token::varId() : vxl: brdb_selection.cxx)
2016-08-06 18:07:41 +02:00
2566fd09da
Fixed #5803 (False positive: Same iterator is used with different containers - insert() from range of different container)
2016-08-04 09:35:16 +02:00
f869f7ebde
Fixed false positive reademptycontainer when end() is called ( #7560 )
2016-07-10 10:48:21 +02:00
53e2cabdbb
Properly support "break" in CheckVaarg::va_list_usage() ( #7533 )
...
Ran AStyle
2016-06-07 19:28:32 +02:00
f1c39dbda7
CWE mapping of stlIfStrFind, stlcstrReturn, stlcstrParam, stlSize, ( #801 )
...
StlMissingComparison, redundantIfRemove.
2016-06-05 18:24:06 +02:00
64d2fd2f57
Added new attribute "arg" to <alloc> and <dealloc> to specify the argument that is allocated/deallocated.
...
This fixes several issues with allocation functions in windows.cfg, such as HeapAlloc() and VirtualAllocEx() (#7503 )
2016-05-22 17:19:14 +02:00
896582ce56
Fixes for CheckStl::string_c_str():
...
- Fixed false positive #7480
- Fixed false negative: Show performance message also for non-local objects
2016-05-06 17:25:00 +02:00
b7d8cd69f6
Fixed false negatives in CheckStl::string_c_str():
...
- Support more complex patterns (#7385 )
- Use same logic for string_c_strReturn() as for string_c_strError()
2016-05-04 11:10:12 +02:00
50fc784550
Mapped error ids stlBoundaries, stlcstr, useAutoPointerContainer, useAutoPointerArray, sprintfOverlappingData, strPlusChar, shiftTooManyBits, integerOverflow, uninitstring, uninitdata, uninitvar, uninitStructMember, deadpointer, va_start_referencePassed, va_end_missing, va_list_usedBeforeStarted, va_start_subsequentCalls to their CWEs.
2016-02-03 12:53:23 +00:00
d12197ce1a
Minor refactoring, removing a redundant condition introduced in the previous changeset
2016-02-03 12:54:44 +01:00
ca2e3b9abb
#7370 False positive uselessCallsCompare on unknown type. Ensure related warnings are only issued on STL types
2016-02-02 20:26:02 +01:00
fa31ebf88e
Fixed #7349 (checker 'inefficient find()' unintentionally used for find_first_of())
2016-01-29 08:55:46 +01:00
5e10e680da
CWE: refactoring. use constants instead of magic numbers.
2016-01-25 20:01:48 +01:00
5ce69da02d
Mapped 26 errors to their CWEs ID.
2016-01-24 20:53:05 +00:00
996c9244d8
Update copyright year to 2007-2016.
2016-01-01 15:34:45 +02:00
940d569980
Refactorization: Removed redundant %any% patterns.
2015-12-24 14:40:48 +01:00
f762affea0
Small refactoring: replace NULL by nullptr, remove redundant static keyword, Tokenizer::setVarId() uses const variable 'notstart'
2015-11-30 22:13:49 +01:00
e8522c7883
Small refactorizations:
...
- #include cleanup
- Use std::array instead of std::vector
- Do not create a stringstream to concatenate 4 strings
- Use std::cout instead of printf
2015-11-29 10:56:44 +01:00
12af125fd3
Fixed false positive stlIfStrFind for function call inside condition.
...
Removed unnecessary suppressions in .travis_suppressions
2015-11-20 20:08:53 +01:00
6590d46013
Added missing functionality to <container> elements in Librarie, completed STL container definitions in std.cfg
2015-11-20 18:22:55 +01:00
c0e33e20b4
Reimplemented CheckStl::readingEmptyStlContainer() based on Libraries
2015-11-20 15:53:14 +01:00
53b2eca983
Reimplemented CheckStl::stlBoundaries() based on Libraries; Added support for iterators to libraries
2015-11-20 15:53:14 +01:00
00bdc89f98
Refactorizations:
...
- Rely on SymbolDatabase to detect string types
- Loop over variable list instead of token list
- Fixed two comments claiming that the AST is experimental
2015-11-20 11:20:42 +01:00
0f9d90d2be
Changed Copyrights. Removed my name.
2015-11-18 20:04:50 +01:00
25749ab19f
Fixed another crash in clang test suite and let two times two functions in std.cfg share same configuration
2015-11-15 14:55:30 +01:00
481d800d5a
Fixed crash in clang test suite.
2015-11-15 14:40:31 +01:00
da6b17d176
Refactorizations in CheckStl:
...
- Improved detection of "auto" iterators in CheckStl::iterators()
- Improved performance of CheckStl::pushback()
- Added more containers to std.cfg
2015-11-15 14:04:39 +01:00
32f0cbb6ad
Fixed false positive eraseDereference with range-based for-loops ( #7106 )
2015-11-08 09:42:55 +01:00
f54f9a7d3e
Explicit continue, better variable name
2015-10-14 15:06:04 +03:00
4d80df2f4a
Added pointer to Type to Token (similar to Token::Variable() and Token::function()):
...
- Accessible via Token::type()
- Renamed former Token::type() to Token::tokType()
- Removed SymbolDatabase::isClassOrStruct()
2015-08-15 11:19:21 +02:00
9085fdc156
Fixed #6887 (False positive eraseDereference - container is member of member variable)
2015-07-30 10:13:49 +02:00
367eecf0db
Fixed Cppcheck internal warning, simpleMatch can be used instead of Match
2015-07-23 19:13:50 +02:00
3dbf290220
Refactor CheckStl::erase so it doesn't use ExecutionPath
2015-07-23 18:53:31 +02:00
f9d22f70db
Removed simplifyIfNot simplification ( #6072 )
2015-07-21 20:56:47 +02:00
7f6b6e43b1
Support strings in CheckStl::mismatchingContainers() ( #6839 )
2015-07-21 14:13:26 +02:00
13c1c2c035
Refactoring (use const std::set for strings). Omit some matching for C++ stuff within C code.
2015-06-17 22:28:15 +02:00
d704e97203
Fix (potential) multi-threading issues by moving static local vars (non-POD-type) to file scope
2015-06-10 21:14:17 +02:00
f0bc300198
#6510 False positive performance warning for std::list::size(). Fix this and other similar false positives. Refactoring of Variable::isStlType(), use fail-safe std::set instead of plain array. Run astyle
2015-05-17 20:02:41 +02:00
33277c6110
Fixed false positive #6679 , fixed unit test for #6663 .
2015-05-11 13:10:11 +02:00
aab1d83075
Updated error message. write variable name.
2015-05-02 16:55:17 +02:00
4cbbd44d49
Fixed false positive #6663 : Better support for loops in CheckStl::readingEmptyStlContainer()
2015-05-02 14:09:48 +02:00
dc54676289
Reverted my changes I made by mistake in previous commit
2015-05-02 14:01:31 +02:00
28985d1baa
manual: Document the cwe attribute
2015-05-02 11:43:42 +02:00
88f59ad7e8
Partial fix for #6656 (Allow that CWE is mapped for error message)
2015-04-25 17:48:11 +02:00
e5745d7d4a
Restore build with libc++ and revert PR#228 and PR#562.
2015-04-12 20:29:49 +02:00
42f0955e3f
Move more setting checks out of loops and use const bools instead. Reorder a few related checks.
...
Follow up to eedcb6abcb
2015-04-10 14:31:19 +02:00
eedcb6abcb
move setting flags checks out of for loops, make them const.
2015-04-07 07:23:28 +02:00
9876cf2312
#6626 crash: Token::astOperand2() const ( do while ). Fix two segmentation faults on invalid code.
2015-04-06 17:23:48 +02:00
22d97fdbd6
don't print style message if --enable=style is not specified.
...
message was of type:
(style) Redundant checking of STL container element existence before removing it.
2015-04-06 14:26:15 +02:00
2587ebf189
Restore build on Mac OS X on which we're force to use GNU's STL, that does not have cend()...
2015-03-19 20:25:57 +01:00
a49efb13f6
Added auto_ptr checking for malloc
2015-03-19 06:41:54 +01:00
b2835051df
Refactorization: Renamed Token::Match pattern %var% to %name%, implement new pattern %var% which is true if varId > 0.
2015-01-31 12:32:04 +01:00
432ff8fa7b
Fixed GCC warnings in checkstl.cpp
2015-01-04 14:32:20 +01:00
e06a4cdf00
Refactorized CheckStl::if_find():
...
- Added support for find()-like functions to Library::Container
- Use <container> information from library
- Fixed false positive #6402
2015-01-04 12:43:50 +01:00
Paul Fultz II
Daniel Marjamäki
Igor
orbitcowboy
Matthias Krüger
amai2012
PKEuS
PKEuS
jrp2014
Oleksandr Redko
uburuntu
Ayaz Salikhov
Roberto Martelloni
orbitcowboy
Lauri Nurmi
Dmitry-Me
PKEuS
Simon Martin
Jakub Melka