apfl/src/resizable.h

#ifndef APFL_RESIZABLE
#define APFL_RESIZABLE 1

#include <stddef.h>
#include <stdbool.h>

#define APFL_RESIZABLE_TRAIT(T, N) \
    T* N;                          \
    size_t len;                    \
    size_t cap;

#define APFL_RESIZABLE_ARGS(S, N) (void **)(&(S).N), &(S).len, &(S).cap

void apfl_resizable_init(void **mem, size_t *len, size_t *cap);

bool apfl_resizable_resize(size_t elem_size, void **mem, size_t *len, size_t *cap, size_t newlen);

bool apfl_resizable_ensure_cap(size_t elem_size, void **mem, size_t *cap, size_t want_cap);
bool apfl_resizable_ensure_cap_for_more_elements(size_t elem_size, void **mem, size_t len, size_t *cap, size_t more_elements);

bool apfl_resizable_splice(
    size_t elem_size,
    void **mem,
    size_t *len,
    size_t *cap,
    size_t start,
    size_t cut_len,
    const void *other_mem,
    size_t other_len
);

bool apfl_resizable_append(size_t elem_size, void **mem, size_t *len, size_t *cap, const void *other_mem, size_t other_len);


#endif