c0c6f92221
Fix issue 8431 and 8776: Size of constant string
...
Fixes these cases:
```cpp
void f(void) {
const std::string msg="xyz";
if(!msg.empty()){} // Always true
}
```
And out of bounds access:
```cpp
#include <string>
char fstr1(){const std::string s = "<a><b>"; return s[42]; }
wchar_t fwstr1(){const std::wstring s = L"<a><b>"; return s[42]; }
```
2019-08-12 20:24:16 +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
...
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
4d9b1e6c3d
Fixed #9094 (Tokenizer::createLinks2 problem with 'x%x<--a==x>x')
2019-05-11 19:11:40 +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
3dc34f1515
Disable all simplified checks
2019-03-16 09:17:50 +01:00
f9fe6cc96a
STL: Removed auto_ptr checking.
2019-03-09 07:48:01 +01:00
725abbfac3
Move CheckStl::missingComparison to normal checks
2019-03-08 20:19:40 +01:00
bd7790fd8c
Update copyright year
2019-02-09 07:24:06 +01:00
8dd641b8be
Use OVERRIDE in test
2019-01-12 15:45:25 +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
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
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
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
d43cd56afd
Show line number when suggesting std::transform ( #1385 )
2018-09-21 10:38:30 +02:00
a26ac4d266
Running astyle. There is no functional change intended.
2018-09-21 08:53:09 +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
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
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
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
0d35a96594
Improve checking of mismatch iterators ( #1293 )
2018-07-26 22:00:48 +02:00
b398398dec
Fixed #8360 (false positive "Ineffective call of function 'empty()'")
2018-07-10 22:58:02 +02:00
ce50df8047
Fix override warnings. ( #1234 )
2018-05-15 16:37:40 +02:00
8304290f06
astyle formatting
...
[ci skip]
2018-04-27 10:29:27 +02:00
55983e2a0b
#8509 Uniform initialization ignored for iterator
2018-04-26 08:57:25 +02:00
c4caee6b18
Updated copyright year
2018-01-14 15:37:52 +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
b73f5fec7d
Fix invalid code in TestStl test case
2017-09-19 23:22:17 +02:00
1a057bc23a
Revert "Remove redundant safety logic (CID 1368511)"
...
This reverts commit d892031f28
2017-09-19 23:13:31 +02:00
d892031f28
Remove redundant safety logic (CID 1368511)
2017-09-19 23:07:02 +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
2679b576c2
Fixed #1693 (false negative: std::vector, negative index)
2017-08-22 11:04:02 +02:00
eb288ec2a1
CheckStl: Use AST to handle iterator comparisons better
2017-07-26 23:13:01 +02:00
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
494f64cb88
tests: fix some self-check findings about functions that can be static.
...
Was:
[test/testtype.cpp:223]: (performance, inconclusive) Technically the member function 'TestType::removeFloat' can be static.
[test/testsymboldatabase.cpp:61]: (performance, inconclusive) Technically the member function 'TestSymbolDatabase::getSymbolDB_inner' can be static.
[test/teststl.cpp:1437]: (performance, inconclusive) Technically the member function 'TestStl::getArraylength' can be static.
2017-04-09 17:28:00 +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
4123b457d7
Fixed #7441 (SymbolDatabase: No scope when function return type not specified)
2017-01-06 11:53:17 +01:00
5b377ea2e4
Fixed #7821 (segmentation fault, invalid last token)
2016-11-20 14:15:51 +01:00
ea545e63c8
astyle formatting
...
[ci skip]
2016-10-27 17:11:32 +02:00
f6a5f6bb61
CheckStl::mismatchingContainers: Refactoring, use Library instead of hardcoding
2016-10-27 10:25:45 +02:00
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
ded8d80b23
Library: Support arguments with default value. Fixed default value handling for <container> tags broken in last commit.
2016-07-09 12:44:17 +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
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
996c9244d8
Update copyright year to 2007-2016.
2016-01-01 15:34:45 +02:00
12af125fd3
Fixed false positive stlIfStrFind for function call inside condition.
...
Removed unnecessary suppressions in .travis_suppressions
2015-11-20 20:08:53 +01:00
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
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
869334acf5
#6554 False positive eraseDereference - erase in while() loop. Add regression test for bug fixed in 1.70
2015-11-10 19:03:35 +01:00
32f0cbb6ad
Fixed false positive eraseDereference with range-based for-loops ( #7106 )
2015-11-08 09:42:55 +01:00
3a5cef8a7e
Refactorization: Improved usage of Settings instances in test suite
2015-10-07 18:40:03 +02:00
128a926d9d
Collected some more garbage code tests in testgarbage.cpp; Avoid std::string creation in testgarbage.cpp
2015-08-16 19:12:12 +02:00
9085fdc156
Fixed #6887 (False positive eraseDereference - container is member of member variable)
2015-07-30 10:13:49 +02:00
e95800bed4
Added regression test for #4816
...
Ran AStyle
2015-07-23 20:53:50 +02:00
3dbf290220
Refactor CheckStl::erase so it doesn't use ExecutionPath
2015-07-23 18:53:31 +02:00
7f6b6e43b1
Support strings in CheckStl::mismatchingContainers() ( #6839 )
2015-07-21 14:13:26 +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
42d9afe7de
posix.cfg add more interfaces from stdlib.h. run astyle
2015-03-21 12:26:07 +01:00
a49efb13f6
Added auto_ptr checking for malloc
2015-03-19 06:41:54 +01:00
bc5132e0ac
Refactorization: Moved declaration of errout, ... to testsuite.h, uniformized style
2015-03-11 22:54:43 +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
11fa185cae
Fixed crash on range-based for-loop
2015-01-03 22:36:39 +01:00
7ece58c3a0
CheckStl::stlOutOfBounds() now uses <container> information from Libraries
2015-01-03 22:18:33 +01:00
Paul Fultz II
Daniel Marjamäki
Igor
orbitcowboy
IOBYTE
amai2012
Ayaz Salikhov
PKEuS
Matthias Krüger
PKEuS
Lauri Nurmi
PKEuS
Jakub Melka
PKEuS