.. title:: clang-tidy - cert-mem57-cpp cert-mem57-cpp ============== This check 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). This check corresponds to the CERT C++ Coding Standard rule `MEM57-CPP. Avoid using default operator new for over-aligned types <https://wiki.sei.cmu.edu/confluence/display/cplusplus/MEM57-CPP.+Avoid+using+default+operator+new+for+over-aligned+types>`_.