Function secp256k1_scratch_create

src/secp256k1/src/scratch_impl.h:13–24

#include "scratch.h"

static secp256k1_scratch* secp256k1_scratch_create(const secp256k1_callback* error_callback, size_t size) {
    const size_t base_alloc = ROUND_TO_ALIGN(sizeof(secp256k1_scratch));
    void *alloc = checked_malloc(error_callback, base_alloc + size);
    secp256k1_scratch* ret = (secp256k1_scratch *)alloc;
    if (ret != NULL) {
        memset(ret, 0, sizeof(*ret));
        memcpy(ret->magic, "scratch", 8);
        ret->data = (void *) ((char *) alloc + base_alloc);
        ret->max_size = size;
    }
    return ret;
}

static void secp256k1_scratch_destroy(const secp256k1_callback* error_callback, secp256k1_scratch* scratch) {
    if (scratch != NULL) {