Commit Graph

167 Commits

Author SHA1 Message Date
Oliver Stöneberg 887463855b
mitigated most clang-tidy warnings in headers (#4175) 2022-07-26 11:10:03 +02:00
Oliver Stöneberg c9c1f83a69
use `emptyString` more consistently (#4034) 2022-07-10 10:57:29 +02:00
PKEuS 9eb16e1002
Replaced check for pipe() buffer size by ordinary CheckBufferOverrun, provide required Library configuration option (#4183)
Merged from LCppC.
2022-06-19 12:01:55 +02:00
Oliver Stöneberg 45158ec064
cleaned up includes based on include-what-you-use (#4007)
* cleaned up includes based on include-what-you-use

* updated translations
2022-04-13 12:24:00 +02:00
Daniel Marjamäki 8f386e15fd Remove bug hunting. This feature will be provided in Cppcheck premium. 2022-04-11 07:31:33 +02:00
Paul Fultz II 09c8cfb2ae
Fix 6624: false negative: std::vector out of bounds access not detected (#3980)
* Fix 6624: false negative: std::vector out of bounds access not detected

* Format

* Add test for auto

* Fix tests

* Format
2022-04-07 06:47:15 +02:00
Paul Fultz II 4fde7f8b18
Fix 10449: Regression: knownConditionTrueFalse (strlen/wcslen) (#3977)
* Refactor library function usage

* Evaluate library function in program memory

* Fix and add tests

* Format
2022-04-06 06:35:38 +02:00
Daniel Marjamäki 3989408738 Update copyright year 2022-02-05 11:45:17 +01:00
Oliver Stöneberg 6739995e79
removed or annotated some code which is only used in test code (#3656) 2022-01-03 12:40:20 +01:00
Oliver Stöneberg ba402f3e50
cleaned up includes based on include-what-you-use (#3627) 2021-12-15 19:47:27 +01:00
Daniel Marjamäki 77434d093e SymbolDatabase: Do not set wrong type for std::map etc items in range for loop 2021-12-11 15:16:54 +01:00
Paul Fultz II 8668d445c7
Add support for string_view (#3480) 2021-10-05 08:28:19 +02:00
Paul Fultz II 865163b2ba
Add library configurations for free functions like std::size, std::empty, etc (#3410) 2021-08-23 09:03:48 +02:00
Paul Fultz II fdaeaacc40
Symboldatabase: Improve valuetypes for containers, iterators, and smart pointers (#3398) 2021-08-14 19:00:58 +02:00
Paul Fultz II 7f358b2bed
Format with uncrustify (#3388) 2021-08-07 20:51:18 +02:00
Paul Fultz II 8efe1d4ab4
Find reference to dangling unique ptr (#3344) 2021-07-20 21:30:27 +02:00
Daniel Marjamäki ce58748690 library: add attribute strlen-arg for <not-overlapping-data> 2021-07-09 13:25:01 +02:00
Daniel Marjamäki 6234b5438e New check: Writing overlapping data, detect undefined behavior 2021-07-05 22:07:41 +02:00
Daniel Marjamäki 42437277dc Update Copyright year 2021-03-21 20:58:32 +01:00
Oliver Stöneberg e8b8cfec78
some minor optimizations (#3057) 2021-01-28 22:18:17 +01:00
Oliver Stöneberg 7aa85aa408
Use std::unordered_* containers for faster lookups (#3052) 2021-01-16 13:52:09 +01:00
Rikard Falkeborn bedf3118ef
library: Refactor to use enum class (#3026) 2021-01-08 10:29:01 +01:00
Daniel Marjamäki b94a6d595a Fixed #9295 (ValueFlow: Does not handle noreturn function) 2020-12-28 20:00:35 +01:00
Georgy Komarov 80dee36e68
library: Add new warning: ignoredReturnErrorCode (#2877)
* library: Add optional "type" attribute to "use-retval"

Added an optional "type" attribute to "use-retval" nodes in the
configuration. When the return type of a function configured with
`<use-retval type="error-code"\>` node does not used, the new style
error "ignoredReturnErrorCode" will be generated.

* Fix and improve patch after the initial review

* Fixed severity level and [[nodiscard]] attribute

* Fix incorrect condition

* Remove redundant condition
2020-11-05 13:35:52 +01:00
Daniel Marjamäki 6c588cc3ef Library: Refactoring <alloc> init attribute 2020-06-28 21:01:43 +02:00
orbitcowboy 9f445fc735 Library: simplified code and added test cases for validating <valid>-tag expressions 2020-06-12 16:06:43 +02:00
Daniel Marjamäki ca8b5f49f3 library: fixed handling of indirect attribute 2020-06-07 20:18:54 +02:00
Daniel Marjamäki 5a4b309e6f Bug hunting: Add 'buffer overflow' check. Detect CVE-2019-19334 2020-05-23 17:50:24 +02:00
Oliver Stöneberg 37bc0483a4
made check.h less heavy (#2633) 2020-05-23 07:16:49 +02:00
Daniel Marjamäki 08ddd84780 Update copyright year 2020-05-10 11:16:32 +02:00
Daniel Marjamäki 3e0218299b Revert "Update copyright year"
This reverts commit 6eec6c4bd5.
2020-05-10 11:13:05 +02:00
Daniel Marjamäki 6eec6c4bd5 Update copyright year 2020-05-10 11:11:34 +02:00
Paul Fultz II a22a77c1fc
Use library config for unstable containers instead of hardcoded values (#2585)
* Use library config for unstable containers instead of hardcoded values

* Fix xml validation
2020-04-03 13:16:57 +02:00
Daniel Marjamäki 747a01f74d Verification; Check function argument values 2019-12-23 22:10:43 +01:00
Sebastian c3c3d6770c
Fix #9478: Valueflow: printf does not change value (#2388)
Format-string arguments are now marked to have `in` direction, except
for `scan`-functions (like `scanf`) where these arguments are explicitly
marked to have `out` direction.
2019-11-24 01:40:31 +01:00
Sebastian c990d10ffa
Check for JSON error when parsing addon .json files + fixes (#2374)
* cppcheck.cpp: Check for JSON error when parsing addon .json files

This fixes that errors in JSON files given via `--addon=*.json` are
silently ignored and maybe only a part of the JSON file is used.
Now the error message which picojson can return is checked and a
corresponding error message is returned again by getAddonInfo().

* naming.json: Fix missing comma

* CLI: Fix naming violations detected by addon naming.py via naming.json

* Addon naming: Add argument for validating names of constants

* LIB: Rename functions/variables so they are valid, loosen naming rules

* GUI: Fix naming violations
2019-11-20 15:37:09 +01:00
Daniel Marjamäki f5e3dc9a38 Improved fix for #8978 (False positive: Variable assigned value that is never used when assigning via iterator) 2019-11-17 12:08:21 +01:00
Paul Fultz II 4ebf54d090 Fix issue 9437: Dont assume init list constructor for strings (#2366)
* Fix issue 9437: Dont assume init list constuctor for strings

* Update the schema

* Add documentation
2019-11-17 03:22:04 +01:00
Paul Fultz II 7841430793 Fix issue 9428: FP uninitvar for pointer passed to sscanf (#2344)
* Add indirect to library cfg files

* Check indirect for non null arguments

* Reenable subfunction analysis

* Use indirect 1 when using not-null

* Parse correct string name

* Update documentation

* Make attribute optional
2019-11-13 12:46:54 +01:00
Daniel Marjamäki 69a54b0ee9 Library: added 'stdtype' attribute in <podtype> element so we can configure standard types better 2019-09-29 16:48:25 +02:00
Paul Fultz II ef714225bb Use library to track container lifetimes 2019-08-15 21:14:54 +02:00
amai2012 29596baa92 Refactoring: Convert enum Direction to enum class 2019-08-01 20:56:02 +02:00
Daniel Marjamäki 9973db3a71 Modernize: Use enum class for Library::Action and Library::Yield 2019-07-17 11:39:30 +02:00
Daniel Marjamäki 783f7f1648 Rename safeValues to unknownValues 2019-07-11 16:05:48 +02:00
Daniel Marjamäki 45844ef962 Try to fix appveyor. Replace int64_t with MathLib::bigint. 2019-07-10 21:26:20 +02:00
Daniel Marjamäki 05d35b063d Function return: Extra check of safe function return values 2019-07-10 20:00:21 +02:00
Rikard Falkeborn 839fcddd8a Fix #6115 (Add support to realloc to cfg files) (#1953)
* Allow to configure realloc like functions

* memleakonrealloc: Bring back tests.

The old memleak checker was removed, and the tests for it was removed in
commit 9765a2dfab. This also removed the
tests for memleakOnRealloc. Bring back those tests, somewhat modified
since the checker no longer checks for memory leaks.

* Add realloc to mem leak check

* Add tests of realloc buffer size

* Configure realloc functions

* Add test of freopen

* Allow to configure which element is realloc argument

* Fix wrong close in test

cppcheck now warns for this

* Update manual

* Update docs

* Rename alloc/dalloc/realloc functions

Naming the member function realloc caused problems on appveyor. Rename
the alloc and dealloc functions as well for consistency.

* Change comparisson order

* Remove variable and use function call directly

* Create temporary variable to simplify

* Throw mismatchError on mismatching allocation/reallocation

* Refactor to separate function

* Fix potential nullptr dereference

As pointed out by cppcheck.
2019-07-05 12:44:52 +02:00
Daniel Marjamäki 84cc09d17c Update Copyright 2019-06-29 07:49:14 +02:00
Paul Fultz II 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
Daniel Marjamäki 2513c1499b Library: Added <smart-pointer> element 2019-04-24 13:06:58 +02:00