Allocator.h

Allocator abstraction.

This is based on allocator object, which combines three standard C allocation function (malloc, realloc, and free) and state pointer. Api for these functions are same as in libc. Because allocator functions take one additional argument you can not just put libc functions there, but very thin wrappers are enough to make allocator object based on libc allocator.

You can attach state to allocator using state. No functions will ever modify it, so it could be used to pass additional parameters to allocator’s functions.

License: GPL-3.0-or-later.

typedef struct cbuild_allocator_t {
void* (*malloc)(struct cbuild_allocator_t* self, size_t size);
void* (*realloc)(struct cbuild_allocator_t* self, void* ptr, size_t size);
void (*free)(struct cbuild_allocator_t* self, void* ptr);
void* state;
} cbuild_allocator_t;

CBUILDDEF cbuild_allocator_t cbuild_allocator_from_arena(cbuild_arena_t* arena);

CBUILDDEF cbuild_allocator_t cbuild_allocator_from_libc(void);

CBUILDDEF cbuild_allocator_t cbuild_allocator_from_temp(void);