std::aligned_alloc (C++)

Allows you to specify alignment requirements for your malloc.

https://en.cppreference.com/w/cpp/memory/c/aligned_alloc

#include <cstdio>
#include <cstdlib>
 
int main()
{
    int* p1 = static_cast<int*>(std::malloc(10 * sizeof *p1));
    std::printf("default-aligned address:   %p\n", static_cast<void*>(p1));
    std::free(p1);
 
     // void *aligned_alloc( size_t alignment, size_t size);
    int* p2 = static_cast<int*>(std::aligned_alloc(1024, 1024));
    std::printf("1024-byte aligned address: %p\n", static_cast<void*>(p2));
    std::free(p2);
}