Message 305324 - Python tracker
> Do you mean the C++ std::max_align_t? Does C99 have something like that? > > The Linux malloc() manual page says: > > "The malloc() and calloc() functions return a pointer to the allocated memory, which is suitably aligned for any built-in type." C11 has max_align_t, but also for C99 "any builtin type" means 16 byte alignment for long double on x64, so malloc() and calloc() are required to align 16 bytes with -std=c99 (and earlier). max_align_t is just a shorthand to express the concept.