ac846b96d1
New check: Iterating a known empty container ( #2740 )
2020-08-22 09:16:26 +02:00
7776fb82a2
Fix issue 737: new check: Dereference end iterator
2020-08-17 16:36:45 -05:00
56affc9080
Fix issue 9780: FP: invalidContainer calling push_back after getting the address of the vector
2020-08-06 21:08:30 -05:00
caabe56f14
Handle FPs: mutexes being locked at different scopes
2020-07-12 21:31:53 -05:00
82b91869ee
Extend mutex checking for more locking patterns
2020-06-26 15:06:20 -05:00
3c10a9c659
Update message
2020-06-24 18:09:30 -05:00
f7029e62ac
Check for mor FPs
2020-06-17 17:06:06 -05:00
18225ee27e
Update text and change to warnings
2020-06-16 10:32:39 -05:00
172537807b
Add check for incorrect usage of mutexes and lock guards
2020-06-15 19:40:54 -05:00
86ed860d26
Fix issue 9548: False negative: Mismatching iterators when inserting into a vector ( #2595 )
2020-06-06 17:54:56 +02:00
37bc0483a4
made check.h less heavy ( #2633 )
2020-05-23 07:16:49 +02:00
4270819728
Fix issue 9713: FP invalidContainerLoop when modifying container and immediately exiting the loop ( #2659 )
2020-05-23 07:14:45 +02:00
6162ebd608
Fix issue 9714: FP invalidContainer related to auto and std::string::insert ( #2660 )
2020-05-23 07:13:55 +02:00
08ddd84780
Update copyright year
2020-05-10 11:16:32 +02:00
3e0218299b
Revert "Update copyright year"
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This reverts commit 6eec6c4bd5
2020-05-10 11:13:05 +02:00
6eec6c4bd5
Update copyright year
2020-05-10 11:11:34 +02:00
2c1e36e63e
cleaned up includes based on include-what-you-use ( #2600 )
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* cleaned up includes based on include-what-you-use
* check.h: trying to work around Visual Studio 2012 bug
* fixed Visual Studio compilation
2020-04-13 13:44:48 +02:00
b67a043e5b
Remove unused variable
2020-04-10 13:16:15 +02:00
e3b644d877
aligned GCC warnings ( #2592 )
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* excluded oss-fuzz related CMake targets from all
* checkstl.cpp: fixed -Wmissing-declarations warning
* suppress -Wsuggest-attribute=format GCC warnings for tinyxml in CMake for now
* aligned GCC warnings in dmake, CMake and Travis / removed now useless WARNINGS_ANSI_ISO
2020-04-08 14:56:12 +02:00
efdc5f5c4e
Fix issue 9435: False negative: invalidContainer when using range for loop ( #2587 )
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* Fix issue 9435: False negative: invalidContainer when using range for loop
* Use ast
* Make string const
2020-04-04 11:47:02 +02:00
a22a77c1fc
Use library config for unstable containers instead of hardcoded values ( #2585 )
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* Use library config for unstable containers instead of hardcoded values
* Fix xml validation
2020-04-03 13:16:57 +02:00
1fd85c0ae8
Fixed #9630 (False positive: in stlIfFind checking, if with initializer is not handled properly)
2020-02-18 19:02:54 +01:00
95a48eac67
Fix issue 9598: False positive: Using iterator to local container that may be invalid for loop handling ( #2539 )
2020-02-16 15:56:52 +01:00
d858bfc338
Fix issue 9599: False positive: Using object that points to local variable that may be invalid ( #2530 )
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* Fix issue 9599: False positive: Using object that points to local variable that may be invalid
* Improve tests
* Skip else
2020-02-11 11:45:10 +01:00
5f73e1cb32
Fix 9546: properly check that the bound is the size ( #2475 )
...
Previously, as the check was done on the token and not on the ast,
`i <= v.size()` and `i <= v.size() - 2` would both raise the same
warning.
This patch fixes this, but this mean the check is only done when the
condition if `i <= v.size()`. Any other (more complex) condition is
ignore, and so we have false negative for instance with
`i <= v.size() + 1`.
2020-01-05 16:24:25 +01:00
30b9455e89
Fix issue 9556: FP mismatchingContainers: raw pointer comparison ( #2465 )
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* Fix issue 9556: FP mismatchingContainers: raw pointer comparison
* Formatting
2020-01-01 12:02:21 +01:00
31bddb6ae0
astyle formatting
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[ci skip]
2019-12-26 15:48:29 +01:00
42d44f02a2
Use lifetime analysis for checking mismatching containers ( #2456 )
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* Use lifetimes to check for mismatching containers
* Fix error messages
* Format
* Remove unused variables
* Fix configuration and track iterators through algorithms
* Fix iterator value types in qt config
* Fix library issue with QStringList
* Remove unused functions
* Fix cppcheck errors
2019-12-25 09:32:50 +01:00
252c3a17fa
Fixed #7107 (False positive iterators - using alias for container)
2019-12-20 12:13:26 +01:00
694d147097
Refactor ProgramMemory and PathAnalysis ( #2311 )
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* Traverse conditions for container size
* Move program memory to seperate file
* Revert "Traverse conditions for container size"
This reverts commit 914783769f
2019-10-30 17:57:46 +01:00
ad8abdb0c3
Add impossible values to ValueFlow ( #2186 )
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* Add impossible category
* Replace values
* Try to adjust known values
* Add ! for impossible values
* Add impossible with possible values
* Remove contradictions
* Add values when the branch is not dead
* Only copy possible values
* Dont bail on while loops
* Load std lib in valueflow
* Check for function calls
* Fix stl errors
* Fix incorrect impossible check
* Fix heap-after-use error
* Remove impossible values when they are lowered
* Show the bound and remove overlaps
* Infer conditions
* Dont push pointer values through dynamic_cast
* Add test for dynamic_cast issue
* Add shifttoomanybits test
* Add test for div by zero
* Add a test for issue 9315
* Dont make impossible value inconclusive
* Fix FP with shift operator
* Improve handleKnownValuesInLoop for impossible values
* Fix cppcheck warning
* Fix impossible values for ctu
* Bailout for streams
* Check equality conditions
* Fix overflows
* Add regression test for 9332
* Remove duplicate conditions
* Skip impossible values for invalid value
* Check for null
* Rename bound to range
* Formatting
2019-09-20 15:06:37 +02:00
ba037837c9
Track lifetime across multiple returns
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This will now warn when doing something like this:
```cpp
template <class T, class K, class V>
const V& get_default(const T& t, const K& k, const V& v) {
auto it = t.find(k);
if (it == t.end()) return v;
return it->second;
}
const int& bar(const std::unordered_map<int, int>& m, int k) {
auto x = 0;
return get_default(m, k, x);
}
```
The lifetime warning is considered inconclusive in this case.
I also updated valueflow to no tinject inconclusive values unless `--inconclusive` flag is passed. This creates some false negatives because library functions are not configured to not modify their input parameters, and there are some checks that do not check if the value is inconclusive or not.
2019-09-11 19:25:09 +02:00
88d194214f
Fix FP with invalidContainerRef ( #2141 )
2019-09-03 06:41:35 +02:00
7d63bdee6f
astyle formatting
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[ci skip]
2019-09-02 06:59:07 +02:00
cb509f1a8b
Fix issue 4845: alias to vector element invalid after vector is changed ( #2113 )
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* Try harder to track ref lifetimes
* Dont add lifetimes for references
* Use correct token
* Check for front and back as well
* Improve handling of addresses
* Formatting
* Fix FP
2019-09-02 06:58:09 +02:00
996daaee4e
STL: Fixed outOfBounds false positive
2019-08-24 15:40:29 +02:00
ef714225bb
Use library to track container lifetimes
2019-08-15 21:14:54 +02:00
68e8253920
Fix issue 8313 and 7326: Track values of pointer aliases in valueflow
2019-08-12 12:58:53 +02:00
3ec3bd52e0
Fix FP when using a pointer to a container ( #2029 )
2019-07-24 00:04:49 +02:00
a08a9c1349
Switch to use lifetime analysis for iterators and pointers to invalid containers
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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
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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 )
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* 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 )
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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'
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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 )
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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
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[ci skip]
2018-08-23 06:06:58 +02:00
f79849f6ba
Diagnose mismatching iterators used together in operators ( #1343 )
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* 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
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[ci skip]
2018-08-05 10:48:28 +02:00
ed197f235a
Fix issue 4693: Diagnostic when using the same iterators to an algorithm ( #1326 )
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* 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
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[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
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[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:
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- 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
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[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
Paul Fultz II
Oliver Stöneberg
Daniel Marjamäki
Ken-Patrick Lehrmann
Igor
orbitcowboy
Matthias Krüger
amai2012
PKEuS
PKEuS
jrp2014