# Extra Clang Tools 22.1.2 documentation

## clang-tidy - bugprone-default-operator-new-on-overaligned-type

# bugprone-default-operator-new-on-overaligned-type

Flags uses of default `operator new` where the type has extended alignment (an alignment greater than the fundamental alignment).

The default `operator new` is guaranteed to provide the correct alignment if the requested alignment is less or equal to the fundamental alignment. Only cases are detected (by design) where the `operator new` is not user-defined and is not a placement new (the reason is that in these cases we assume that the user provided the correct memory allocation).

## References

This check corresponds to the CERT C++ Coding Standard rule MEM57-CPP. Avoid using default operator new for over-aligned types.