For gcc, there is this (to be used after the memset() call): asm volatile("" : : : "memory"); (see https://en.wikipedia.org/wiki/Memory_ordering#Memory_barr

For gcc, there is this (to be used after the memset() call): asm volatile("" : : : "memory"); (see https://en.wikipedia.org/wiki/Memory_ordering#Memory_barrier_types https://en.wikipedia.org/wiki/Memory_ordering#Memory_barrier...)