| Issue |
108823
|
| Summary |
[clang-tidy] false positive report of possible memory leak when capturing std::function in lambda multiple times
|
| Labels |
clang-tidy
|
| Assignees |
|
| Reporter |
valarx
|
Minimal reproduction example:
```
#include <functional>
std::function<void()> combine(const std::function<void()>& lhs, const std::function<void()>& rhs)
{
auto thisTemporaryCausesWarning = [lhs, rhs] (){};
return { std::move(thisTemporaryCausesWarning) };
int main()
{
std::function<void()> f;
f = combine(f, nullptr);
f = combine(f, nullptr); // this call triggers warning
}
```
As described, when calling `combine` two times in this scenario, if the temporary variable is present in `combine` implementation, then clang-tidy triggers warning "potential memory leak" which points to implementation of constructor of `std::function`. If the temporary variable is not present, then the warning is not triggered.
Clang-tidy version is 18.1
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