* dump: Fix concurrency problem with dump files
This adds the process ID for the cppcheck process to the filenames
of the .dump and .ctu-info files that the process generates.
So
lib/cppcheck.cpp.dump
becomes
lib/cppcheck.cpp.<PID>.dump
For example:
lib/cppcheck.cpp.2637871.dump
The reason for this change is that if there is a buildsystem which
supports concurrency, multiple instances of cppcheck may be run for
the same file. For example, if the same file is compiled in multiple
build variants, or for multiple targets.
If running the MISRA plugin over such a project with concurrency
enabled in the buildsystem, the plugin ends up crashing as multiple
jobs attempt to create/trample/delete the same files while other
jobs are using them.
For more information see:
https://sourceforge.net/p/cppcheck/discussion/general/thread/02c757b4af/
* dump: Include pid in filename if dump not explicit
Only change the dump and ctu-info filenames to include the PID if
they are being generated due to an addon.
This means that existing scripts that use `--dump` will still work
if they depend on the previous naming behaviour. The more robust
filenames containing the pid will be used when the dump files are
used as an internal implementation detail for passing data to addons.
However this means that anything that does explicitly use `--dump`
will be susceptible to concurrency problems.
* test: Update addon dump file test to account for pid
This test causes a dump file to be created by enabling the misra
addon. Since the dump files now include the cppcheck process pid
this test had to be updated to account for the change.
* std.cfg: added support for `std::unordered_map::count()`
* std.cfg: added support for `std::multimap::count()`
* std.cfg: added support for `std::unordered_map::insert()`
* std.cfg: added support for `std::unordered_set::insert()`
* std.cfg: added support for `std::unordered_set::emplace()`
* fixture.h: added TODO
* TestPlatform: improved tests for built-in platforms
* TestPlatform: changed tests to TODO asserts
* testfilelister.cpp: added TODO
* fixture.h: added `PLATFORM` macro to load platform / use `PLATFORM` in tests
* platform.h: corrected capitalization in `Platform::platformString(PlatformType)` and bail on unknown type
* fixture.h: fixed `readability-redundant-string-cstr` clang-tidy warning
* testplatform.cpp: fixed `functionConst` selfcheck warnings
* Added cfg information about std::span
* Add tests for span handling
* Add details about functions and tests fo std::span
* Add tests in dangingLifetimeContainerView for span
* Reduce c++ version from 20 to 2a
* Add checking if span is supported in std lib cfg checks
* Fix#11473 FP constVariable with range-based for / #11448 FP constParameter with unused non-const range loop variable
* Fix ValueType / #11188 FP danglingTempReference with auto
* Fix ValueType in range-based for
* Update symboldatabase.cpp
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>
* fixed#11428 - improved handling of suffices in `MathLib::to{Double|ULong|Long}Number()`
* testmathlib.cpp: adjustments for `libc++`
* mathlib.cpp: added TODO
* 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
* 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.
* 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>
* 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>
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>
* Fix 9392, but for destructors: out-of-line defaulted destructors skipped everything after
Context:
```
struct S {
~S();
};
S::~S() = default;
void g() {
int j;
++j;
}
```
Everything after `S::~S() = default;` was skipped, so the uninitialized variables in g() weren't found.
Out-of-line destructors are useful e.g. when you have a forward declared unique_ptr in the .h,
and `= default` the destructor in the .cpp, so only the cpp needs to know the header for destructing
your unique_ptr (like in the pImpl-idiom)
* Fix unit test, by correctly fixing 10789
Previous commit broke this test, but also provided the tools for a cleaner fix
* Document current behaviour
* Rewrite control flow
* Fix deleted functions, which skipped everything after
`a::b f() = delete` triggered the final else in SymbolDatabase::addNewFunction,
which sets tok to nullptr, effectively skipping to the end of the stream.
* Remove troublesome nullptr, which skips every analysis afterwards
It was introduced in 0746c241 to fix a memory leak.
But setting tok to nullptr, effectively skipping to the end, seems not needed.
Previous commits fixes prevented some cases where you could enter the `else`.
This commit is more of a fall back.
* fixup! Fix deleted functions, which skipped everything after
`a::b f() = delete` triggered the final else in SymbolDatabase::addNewFunction,
which sets tok to nullptr, effectively skipping to the end of the stream.
* fixup! Fix deleted functions, which skipped everything after
`a::b f() = delete` triggered the final else in SymbolDatabase::addNewFunction,
which sets tok to nullptr, effectively skipping to the end of the stream.
* Make it heard when encountering unexpected syntax/tokens
Co-authored-by: Gerbo Engels <gerbo.engels@ortec-finance.com>
* fixed handling of incomplete char/string literals in `isPrefixStringCharLiteral()` - also optimized it a bit / added tests for `isStringLiteral()` and `isCharLiteral()`
* utils.h: early out in `isStringCharLiteral()` to avoid the loop
* avoid potentially duplicated `strTolower()` call in `Path::getFilenameExtensionInLowerCase()`
* avoid unnecessary copies
* use `unordered_*` containers for faster lookups
* symboldatabase.cpp: do not perform call in `checkReturns()` until needed
* astutils.cpp: do not perform calls in `isVariableChangedByFunctionCall()` until necessary
* tokenize.cpp: small `hasIfDef()` optimization
* use `unordered_map` for `CheckUnusedFunctions::FunctionUsage::mFunctions` / adjusted test case
chrchr-github
Michael Drake
Oliver Stöneberg
Paul Fultz II
Mateusz
Daniel Marjamäki
Robert Reif
orbitcowboy
gerboengels
Rikard Falkeborn
Stefan van Kessel
Armin Müller
omarandlorraine
Razvan Ioan Alexe