A macro that allocates and initialises memory simultaneously.

ialloc.h

// allocate memory for a type, and initialise it at the same time

#define ialloc(t, ...) ialloc_impl(sizeof(t), &(t){ __VA_ARGS__ })

// helper function
inline static void* ialloc_impl(int size, void* src) {
  void* dest = malloc(size);
  memcpy(dest, src, size);
  return dest;
}



/*
// example usage:
int* a = ialloc(int, 5);
float* b = ialloc(float[4], 1.0, 4.1, 12, 1.3);
my_type* c = ialloc(my_type, .foo="hello world", .bar=1337);

// memory can then be freed like normal
free(a);
free(b);
free(c);
*/