An extension class to allocate memory easily with cython.

This extension class started as part of the Sage software.

It provides a single extension class MemoryAllocator with cdef methods

• malloc,
• calloc,
• allocarray,
• realloc,
• reallocarray,
• aligned_malloc,
• aligned_calloc,
• aligned_allocarray.

Memory is freed when the instance of MemoryAllocator is deallocated. On failure to allocate the memory, a proper error is raised.

• Modernize Python metadata, require Python >= 3.8. #9 by @mkoeppe
• Add missing noexcept clauses for Cython 3 #8 by @tornaria

• Python 3.11 compatible.

• Provide wheels build by github actions.

• Fixed doctests on 32bit systems.