Commit Graph

12108 Commits

Author SHA1 Message Date
orbitcowboy 521f0ce720 gnu.cfg: Added nullpointer tests for getopt_long(). 2022-12-21 17:06:08 +01:00
Oliver Stöneberg b380fd2589
added command-line option `--valueflow-max-iterations` to control amount of valueflow iterations / also log debug warning when iterations are being exceeded (#4557) 2022-12-20 20:51:08 +01:00
Oliver Stöneberg 3c68b9b29f
use `cbegin()` and `cend()` with `const_ierator` loops (#4658) 2022-12-20 20:32:16 +01:00
Paul Fultz II f8132ea022
Fix 11381: FP derefInvalidIteratorRedundantCheck when updating iterator using std::tie (#4659) 2022-12-20 20:29:19 +01:00
chrchr-github 7506b4ab52
Fix #11441 FP variableScope when lambda is used (#4660) 2022-12-20 14:50:31 +01:00
chrchr-github ad858e92dc
Partial fix for #11444 cppcheckError: Analysis failed (function not recognized) (#4656) 2022-12-19 22:29:43 +01:00
Paul Fultz II da32c5aecd
Fix 11442: new "Reference to temporary returned." FPs (#4657) 2022-12-19 22:28:59 +01:00
Oliver Stöneberg 2cd8bb94e4
some small `CmdLineParser` cleanups and improvements (#4654) 2022-12-19 22:28:36 +01:00
Paul Fultz II 9da574f4a0
Fix 11227: ValueFlow: Known value not set in condition for ternary operator (#4653)
* Evaluate args before function call

* Fix tests

* Format

* Add test for 11227

* Format

* Fix known condition
2022-12-18 22:07:43 +01:00
Oliver Stöneberg 0ed98c8f29
removed unused test files (#4648) 2022-12-18 19:36:37 +01:00
chrchr-github 98b3d66684
Add test for #11128 (#4649) 2022-12-18 16:57:25 +01:00
chrchr-github 76c28073aa
Revert fix for #10831 (#4631) 2022-12-18 16:55:55 +01:00
chrchr-github 617cd29a41
Get type from auto (#4640) 2022-12-18 16:54:58 +01:00
chrchr-github b1abaf8809
Fix FP useStlAlgorithm (don't suggest std::accumulate when nothing is accumulated) (#4647) 2022-12-18 16:52:04 +01:00
gerboengels 63e30d1b8c
Fix syntaxError on lambda inside decltype (#4650)
Use case where it gave an issue:

using customComparator = decltype([] (const X& lhs, const X& rhs) { return lhs.CompareTo(rhs); });
std::map<X, int, costomComparator> m;

Co-authored-by: Gerbo Engels <gerbo.engels@ortec-finance.com>
2022-12-18 16:46:04 +01:00
chrchr-github 4c8aa56d8b
Partial fix for #11378 internalAstError regressions (iscpp11init) (#4629)
* Partial fix for #11378 internalAstError regressions (iscpp11init)

* Use %cop%

* Add test for #11229

* Format

* Format
2022-12-16 10:46:15 +01:00
Paul Fultz II 9c55b933c1
Partial fix for 11303: False negative: knownConditionTrueFalse using container .back() (#4633)
* Partial fix for 11303: False negative: knownConditionTrueFalse using container .back()

* Format

* Fix error message
2022-12-15 18:35:19 +01:00
Paul Fultz II 90898945c1
Fix 10532: False negative: dangling string_view when using ternary operator (#4638)
* Fix 10532: False negative: dangling string_view when using ternary operator

* Format

* Update
2022-12-15 18:34:43 +01:00
chrchr-github 553b579f8d
Fix #11434 FP knownConditionTrueFalse with loop over bool array (#4646)
* Fix #11434 FP knownConditionTrueFalse with loop over bool array

* Simplify
2022-12-15 14:31:02 +01:00
chrchr-github 0c1e2ceeb9
Fix #11289 FP wrongPrintfScanfArgNum - snprintf with parameter pack (#4644) 2022-12-15 08:52:13 +01:00
chrchr-github b7693ccc7a
Fix #11431 FP resourceLeak with goto (#4645) 2022-12-14 22:47:14 +01:00
Oliver Stöneberg 29e0133cb5
extracted `FwdAnalysis` from `astutils.{cpp|h}` (#4637)
* added missing filtering offiles in Visual Studio project

* extracted `FwdAnalysis` from `astutils.{cpp|h}`
2022-12-13 22:29:23 +01:00
Paul Fultz II e2f398f81a
Fix 11250: FN: bufferAccessOutOfBounds (comma operator: int x = (3,4) ) (#4636)
* Fix 11250: FN: bufferAccessOutOfBounds (comma operator: int x = (3,4) )

* Format
2022-12-13 07:52:58 +01:00
Oliver Stöneberg e01c463ff8
fixed #11428 - improved handling of suffixes in `MathLib::to{Double|ULong|Long}Number()` (#4635)
* fixed #11428 - improved handling of suffices in `MathLib::to{Double|ULong|Long}Number()`

* testmathlib.cpp: adjustments for `libc++`

* mathlib.cpp: added TODO
2022-12-13 07:52:45 +01:00
Paul Fultz II b4d455df48
Fix 11349: FP negativeIndex for clamped array index (#4627)
* Fix 11349: FP negativeIndex for clamped array index

* Format

* Use emplace_back

* Use default constructor
2022-12-13 07:50:01 +01:00
chrchr-github 5b687cb038
Fix #11423 Crash in valueFlowForwardConst() (#4634) 2022-12-12 22:58:48 +01:00
chrchr-github 3f5054035d
Fix #11432 FP passedByValue for overriden function (#4632) 2022-12-12 21:52:58 +01:00
Paul Fultz II 3f88744851
Fix 11358: FP containerOutOfBounds for container passed by pointer (#4626) 2022-12-09 19:43:21 +01:00
Oliver Stöneberg 40a69e5afb
optimized deserializing of `ErrorMessage` and related main process code (#4610) 2022-12-09 19:34:51 +01:00
Paul Fultz II 7acbb656f3
Fix 11412: False positive: uninitvar (#4624)
* Dont remove modified variables from dead code

* Add test for 11412

* Format
2022-12-09 07:15:47 +01:00
Paul Fultz II c150317f02
Fix 11384: FP knownConditionTrueFalse when variable is modified in return statement (#4625)
* Fix 11384: FP knownConditionTrueFalse when variable is modified in return statement

* Format
2022-12-09 07:15:15 +01:00
chrchr-github c779cefa61
Fix #11422 debug: Missing variable class for variable with varid (#4616) 2022-12-08 20:17:06 +01:00
Paul Fultz II 0cb742701d
Fix 11415: FP containerOutOfBounds for container initialized in virtual method (#4622) 2022-12-08 20:10:58 +01:00
chrchr-github 04b7c0c200
Fix #11404 FP knownConditionTrueFalse with iterator (#4619)
* Fix wrong value set in valueFlowSameExpressions()

* Fix  #11404 FP knownConditionTrueFalse with iterator
2022-12-08 10:40:55 +01:00
Paul Fultz II 663a8411dd
Fix 11416: FP nullPointerRedundantCheck for check after loop with break (#4620) 2022-12-08 07:27:06 +01:00
Oliver Stöneberg 4103d05c7f
improved `ErrorMessage::deserialize()` error messages (#4617) 2022-12-07 18:00:45 +01:00
chrchr-github 8713dabe58
Get type from iterator (#4613) 2022-12-07 09:38:36 +01:00
Oliver Stöneberg 8bb5ac0efd
improved `MathLib::to{ULong|Long|Double}Number()` and increased test coverage / added CMake option `USE_LIBCXX` / fixed #10695 (#4611) 2022-12-07 09:20:09 +01:00
chrchr-github 89dba226dd
Fix #11305 FP uninitvar with unseen typedef (#4612) 2022-12-07 09:14:22 +01:00
chrchr-github 0e57c27dd3
Fix #11386 debug: CheckClass::checkConst found unlinked template argument list (#4614) 2022-12-07 09:12:46 +01:00
chrchr-github d5d7446433
Add cfg for std::scoped_lock, handle template arguments in checkMisusedScopedObject() (#4615) 2022-12-07 09:10:48 +01:00
Oliver Stöneberg 7d3ce62ee9
improved errorhandling related to deserializing `ErrorMessage` (#4604) 2022-12-03 15:44:33 +01:00
Rikard Falkeborn 9427fa3c66
Refactor runtests to allow to specify files on command line (#4609) 2022-12-03 15:41:11 +01:00
chrchr-github 0854fda28a
Get type from smartpointer (#4608)
* Fix #11223 checkLibraryFunction treats "auto" as type

* Use utility function

* Get type from 'auto p = new ...'

* Fix merge

* Add test for recent fix

* Format

* Get type from smartpointer
2022-12-03 07:50:21 +01:00
chrchr-github 7d6683fb78
Fix #11417 FP knownConditionTrueFalse with container and brace init (#4606)
* Fix #11417 FP knownConditionTrueFalse with container and brace init

* Format

* Format

* Move to getInitListSize()
2022-12-02 22:07:08 +01:00
chrchr-github e4ee7cd59c
Get type from 'auto p = new ...' (#4607)
* Fix #11223 checkLibraryFunction treats "auto" as type

* Use utility function

* Get type from 'auto p = new ...'

* Fix merge
2022-12-02 20:28:14 +01:00
chrchr-github 9efedd6be9
Fix #11223 checkLibraryFunction treats "auto" as type (#4605)
* Fix #11223 checkLibraryFunction treats "auto" as type

* Use utility function
2022-12-02 07:21:33 +01:00
chrchr-github 428f5016d4
Partial fix for #11378 (iscpp11init) (#4595)
* Partial fix for #11378 (iscpp11init)

* Improve fix

* Add fix
2022-11-27 09:26:46 +01:00
chrchr-github 665e4230f2
Fix #11406 FP returnDanglingLifetime, std::unique_ptr and implicit conversion to bool (#4600) 2022-11-27 09:24:19 +01:00
chrchr-github 4cb49013a7
Fix #11374 FP danglingTemporaryLifetime with std::string_view (#4602) 2022-11-27 09:22:55 +01:00
Rikard Falkeborn 52264b9c26
Fix #11401 nullpointer dereference with alignof (#4601)
* checknullpointer: Don't report dereference with alignof

* Refactor unevaluating operator check in checknullpointer

Unifying these ensures the different checks treat the operators the
same.

* Fix FP with _Alignof and null pointer

Just like alignof, _Alignof does not evaluate its operand.

* CheckNullPointer: Also support compiler specific alignof

This fixes #11401 which is about __alignof__. For good measure, also add
the microsoft extensions __alignof and _alignof.
2022-11-27 09:20:19 +01:00
Rikard Falkeborn 8465d901c8
Fix 11396, doublefree on munmap in if-statement (#4594) 2022-11-26 15:45:27 +01:00
Daniel Marjamäki c26a8fb4ce Fixed #11395 (Cant exclude file) 2022-11-24 13:45:57 +01:00
Stefan van Kessel a5c16af16d
Fix lambda capture template syntax error (#4593) 2022-11-23 20:15:10 +01:00
chrchr-github 68acd77053
Fix #11361 FP ctuPointerArith with unknown buffer size (#4591) 2022-11-23 19:11:47 +01:00
Daniel Marjamäki ad8c1e26f0 dump: output language to dumpfile 2022-11-20 12:30:09 +01:00
chrchr-github 9f50611a44
Fix #11391 FP doubleFree with goto (#4587) 2022-11-19 16:49:34 +01:00
chrchr-github 80aa6dc1d9
Fix #11392 FP mismatchAllocDealloc with std::unique_ptr and custom deleter (#4585) 2022-11-18 19:45:25 +01:00
gerboengels 3fdba645a6
Improve fix for #11383 FP selfAssignment: lambda capture (#4584) 2022-11-18 19:44:32 +01:00
chrchr-github 4ce76d0b58
Fix #11385 debug: SymbolDatabase::findFunction found '>' without link. (#4583) 2022-11-14 21:08:15 +01:00
chrchr-github e3939d32d0
Fix crash on nullptr (#4582)
* Update tokenlist.cpp

* Update testincompletestatement.cpp

* Fix #11370 FP constStatement with lambda

* Format

* Fix crash on nullptr

* Emit syntax error

* Fix test

* Use strAt()

* Fix another crash on nullptr

* Update testconstructors.cpp

* Fix crash on nullptr

* Fix test
2022-11-13 23:04:51 +01:00
chrchr-github 701d381895
Fix #11383 FP selfAssignment: lambda capture / #11380 FP operatorEqRetRefThis (#4581)
* Fix  #11383 FP selfAssignment: lambda capture /  #11380
FP operatorEqRetRefThis

* Format
2022-11-13 21:20:44 +01:00
chrchr-github e8b37235d6
Fix #11378 internalAstError regressions (iscpp11init) (#4580) 2022-11-12 22:25:05 +01:00
Daniel Marjamäki 8fb8e06003 SymbolDatabase: Set valuetype for this 2022-11-12 22:23:42 +01:00
chrchr-github 4e75c08f58
Respect [[maybe_unused]] in unusedPrivateFunction (#4579) 2022-11-10 20:58:39 +01:00
Armin Müller 7f74aad8e2
Typos found by running "codespell" (#4578) 2022-11-09 22:52:03 +01:00
chrchr-github ffc0c57562
Fix crashes on nullptr (#4575) 2022-11-09 21:56:16 +01:00
gerboengels bd95efc987
Fix internal error "Unexpected tokens in initializer" with anonymous namespace (#4577)
Co-authored-by: Gerbo Engels <gerbo.engels@ortec-finance.com>
2022-11-05 22:41:13 +01:00
Daniel Marjamäki e45e5f9f15 SymbolDatabase: fix ValueType for '&array[x]' 2022-11-05 21:22:08 +01:00
Daniel Marjamäki ecb2938e7e SymbolDatabase: Set correct ValueType when there is array-to-pointer decay 2022-11-05 17:38:31 +01:00
gerboengels d7a8f7f297
Fix couple issues with missing operatorEqVarError (#4576) 2022-11-05 10:48:34 +01:00
omarandlorraine 6488650d24
use python3 on debians too (#3812)
* use python3 on debians too

in Debian 11 which is Bullseye, /usr/bin/python is a Python2
interpreter, which means that cppcheck-htmlreport fails to run here.
So I've chenged the shebang to use python3

* change all shebangs from python to python3

Co-authored-by: Sam M W <smw@alertergroup.co.uk>
2022-11-03 22:14:30 +01:00
Rikard Falkeborn 3c21b9cc53
Fix #11038, FP memory leak in if-statement in realloc with cast (#4572) 2022-11-03 10:37:43 +01:00
chrchr-github e4c5f36af0
Fix #11373 typedef: not simplified after inline keyword (#4574) 2022-11-02 15:15:33 +01:00
chrchr-github ccf2176664
Fix #11370 FP constStatement with lambda (#4570)
* Update tokenlist.cpp

* Update testincompletestatement.cpp

* Fix #11370 FP constStatement with lambda

* Format
2022-11-01 11:50:08 +01:00
chrchr-github d717e62ec3
Fix #11371 Detect assignment to temporary (#4571)
* Fix #11371 Detect assignment to temporary

* Use AST

* Warn if type definition is not seen
2022-11-01 11:46:42 +01:00
chrchr-github cf8051b7e2
Fix #11368 FP "Same value in both branches of ternary operator" on plus and minus zero (#4569)
Fix #11368 FP "Same value in both branches of ternary operator" on plus and minus zero
2022-10-31 15:18:25 +01:00
chrchr-github 6df8573e15
Fix #11369 Syntax error. Unexpected tokens in initializer. (#4568) 2022-10-29 21:24:50 +02:00
chrchr-github b4e78e8ac5
Fix #11357 new internalAstError (#4564)
* Fix #11357 new internalAstError

* Format

* Handle scope operator

* Format

* Format
2022-10-25 21:50:37 +02:00
chrchr-github 3b5601dbea
Add tests for #9327, #10597 (#4566)
* Add test for #9327

* Add test for #10597
2022-10-25 19:41:48 +02:00
chrchr-github 13d81cdd58
#11351 follow-up: Handle more variadic template arguments (#4554)
* Update templatesimplifier.cpp

* Add tests
2022-10-22 00:28:33 +02:00
chrchr-github ae16aab997
Handle simple typedefs (#4558) 2022-10-22 00:28:05 +02:00
chrchr-github e046232535
Fix #11362 FP returnDanglingLifetime for pointer to struct member in static array (#4563)
* Fix  #11362 FP returnDanglingLifetime for pointer to struct member in static array

* Undo
2022-10-22 00:27:30 +02:00
chrchr-github 515369739c
Fix #11359 FP constStatement for function-local struct definition+initialization statement (#4561) 2022-10-22 00:27:19 +02:00
Razvan Ioan Alexe 1da37461e3
Typo found in Summary of CWE: 758 (#4553) 2022-10-20 19:11:15 +02:00
chrchr-github 7b9c99003b
Improve unreachableCodeError: handle library functions (#4560)
* Update templatesimplifier.cpp

* Add tests

* Improve unreachableCodeError message

* Update templatesimplifier.cpp

* Add tests

* Improve unreachableCodeError message

* Revert "Update templatesimplifier.cpp"

This reverts commit 3fd152ed4063772a5f162bd985c3d91bcc65eb55.

* Revert "Add tests"

This reverts commit e760ab51e66a0a2c3a0250caf4cf3b745db44d10.

* Improve unreachableCodeError: handle library functions

* Fix merge
2022-10-20 07:00:36 +02:00
chrchr-github 9c7b4c9540
Improve unreachableCodeError message (#4559)
* Update templatesimplifier.cpp

* Add tests

* Improve unreachableCodeError message

* Update templatesimplifier.cpp

* Add tests

* Improve unreachableCodeError message

* Revert "Update templatesimplifier.cpp"

This reverts commit 3fd152ed4063772a5f162bd985c3d91bcc65eb55.

* Revert "Add tests"

This reverts commit e760ab51e66a0a2c3a0250caf4cf3b745db44d10.
2022-10-19 19:19:31 +02:00
chrchr-github 192c30ab1d
Fix crash in arraySize() (#4556)
* Fix  #11355 FN: arrayIndexOutOfBounds

* Fix

* Fix crash in arraySize()
2022-10-19 19:19:01 +02:00
gerboengels 6a01fa9b70
#11134 Fix broken AST with (designated) initializers (#4550)
* Make control flow a bit easier, and more similar to previous code

Made similar to around line 790

* In a cpp11init, always parse only the corresponding } (#11134)

- _always_, because in some cases this was omitted (around line 790) or too strict (around line 860)
- _only_, and not following tokens which happen to be } as well (around line 1030)

* Fix unit tests: AST was incorrect, now is fixed

auto var{ {{},{}}, {} };

Old AST:
```
{
|-var
`-{
  `-,
    |-,
    | |-{
    | `-{
    `-{
```
New AST:
```
{
|-var
`-,
  |-{
  | `-,
  | | |-{
  | | `-{
  `-{
```
Compare the same example, but with `X{}` instead of just `{}`:
`auto var{ a{b{},c{}}, d{} };`
```
{
|-var
`-,
  |-{
  | |-a
  | `-,
  | | |-{
  | | | `-b
  | | `-{
  | | | `-c
  `-{
    `-d
```
This structure is similar to that of the new AST, not the old AST

* Fix unit tests: another AST was incorrect, now is fixed

Code: `auto var{{1,a::b{2,3}}, {4,a::b{5,6}}};`

Old AST:
```
{
|-var
`-{
  `-,
    |-,
    | |-1 'signed int'
    | `-{
    | | |-::
    | | | |-a
    | | | `-b
    | | `-,
    | | | |-2 'signed int'
    | | | `-3 'signed int'
    `-{
      `-,
        |-4 'signed int'
        `-{
          |-::
          | |-a
          | `-b
          `-,
            |-5 'signed int'
            `-6 'signed int'
```
New AST:
```
{
|-var
`-,
  |-{
  | `-,
  | | |-1 'signed int'
  | | `-{
  | | | |-::
  | | | | |-a
  | | | | `-b
  | | | `-,
  | | | | |-2 'signed int'
  | | | | `-3 'signed int'
  `-{
    `-,
      |-4 'signed int'
      `-{
        |-::
        | |-a
        | `-b
        `-,
          |-5 'signed int'
          `-6 'signed int'
```

* Fix unit tests: missing ; after class, resulting in incorrectly being marked as cpp11init

Because of the missing `;` after the class declaration, it was marked as a cpp11init block.
Which it isn't, and which now throws an exception

* Fix cpp11init to let unit tests pass again

The following unit tests failed on the newly introduced throws, because the code for these tests incorrectly marked some tokens as cpp11init:
TestVarID::varid_cpp11initialization
TestTokenizer::checkRefQualifiers

* Fix typo

* Improve check for void trailing return type

Observation: the only function body _not_ containing a semicolon, is a void function: something like
   auto make_zero(ini& i) -> void {
     while(--i > 0) {}
   }
Non-void function? Then it must return a value, and thus contain a semicolon, which is checked for a few lines later.

* Fix cpp11init with templated trailing return type

In the following example, vector was marked as cpp11init due to the mismatch of `%any% {`
auto f() -> std::vector<int> { return {}; }

I made the assumption that whenever "%any% {" matches, endtok must be set too.
If this assumtion doesn't hold (so "%any% {" matches, but endtok == nullptr), then the for-loop would search all the way to the end of stream. Which I guess was not the intention.

* Remove comments

Co-authored-by: Gerbo Engels <gerbo.engels@ortec-finance.com>
2022-10-19 07:25:15 +02:00
chrchr-github 5a8e55c083
Fix #11355 FN: arrayIndexOutOfBounds (#4555)
* Fix  #11355 FN: arrayIndexOutOfBounds

* Fix
2022-10-18 07:24:24 +02:00
chrchr-github c6c339a3e7
Fix #11351 Assert failure in templatesimplifier.cpp (#4552) 2022-10-16 19:34:25 +02:00
gerboengels 221873e69f
Fix #11319 (#4549)
In this example:
```
//template<std::same_as<int> T> // <= works
template<same_as<int> T>        // <= didn't work
void f()
{}
```
the changed line used to match to `< same_as <`, therefore skip creating links.
The `%op% %name% <` already feels a bit like a workaround. So adding the condition that $op$ shouldn't be a comparison operator, but part of the template, seemed reasonable to me

Co-authored-by: Gerbo Engels <gerbo.engels@ortec-finance.com>
2022-10-16 19:33:44 +02:00
Oliver Stöneberg 2ac9fbc1bf
include all (internal non-generated) headers in clang-tidy checks (#4100) 2022-10-16 13:51:17 +02:00
chrchr-github 3273e51fd5
Fix #10412 FN useStlAlgorithm with iterators (#4157) 2022-10-16 13:46:26 +02:00
chrchr-github 6c24d2b865
Fix #11321 FP uninitvar for in-class member initialization (#4547) 2022-10-14 19:48:27 +02:00
chrchr-github 544ec38ca9
Add test for #2490 (#4551) 2022-10-14 11:55:45 +02:00
Daniel Marjamäki b8b6be48d9 Fixed #9926 (False positive assertWithSideEffects, calling method that has no side effects) 2022-10-12 07:51:50 +02:00
Daniel Marjamäki 2a81388c95 Fixed #11102 (False positive: unreadVariable when union in derived struct is used) 2022-10-11 20:47:07 +02:00
chrchr-github c51fb3864a
Add test for #10801 (#4544) 2022-10-11 07:23:28 +02:00
Daniel Marjamäki 584a428025 Fixed #10831 ("Analysis failed (lambda not recognized)" with lamba default parameter in lambda signature) 2022-10-10 21:05:48 +02:00