diff options
Diffstat (limited to 'vec.c')
-rw-r--r-- | vec.c | 76 |
1 files changed, 0 insertions, 76 deletions
@@ -1,76 +0,0 @@ -/* Copyright (C) 2025 Aryadev Chavali - - * This program is distributed in the hope that it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS - * FOR A PARTICULAR PURPOSE. See the Unlicense for details. - - * You may distribute and modify this code under the terms of the Unlicense, - * which you should have received a copy of along with this program. If not, - * please go to <https://unlicense.org/>. - - * Created: 2025-08-19 - * Description: Vector implementation - */ - -#include <malloc.h> -#include <string.h> - -#include "./alisp.h" - -void vec_make(void **ptr, u64 size) -{ - if (!ptr) - return; - vec_t *vector = calloc(1, sizeof(*vector) + size); - vector->size = 0; - vector->capacity = size; - *ptr = (vector + 1); -} - -void vec_free(void **data) -{ - if (!data || !*data) - return; - free(VEC_GET(*data)); - *data = NULL; -} - -void vec_ensure_remaining(void **ptr, u64 space) -{ - if (!ptr || !*ptr) - return; - vec_t *vec = VEC_GET(*ptr); - if (vec->capacity - vec->size < space) - { - void *new_vec = NULL; - vec_make(&new_vec, MAX(vec->capacity * VEC_MULT, vec->size + space)); - VEC_SIZE(new_vec) = vec->size; - memcpy(new_vec, *ptr, vec->size); - vec_free(ptr); - *ptr = new_vec; - } -} - -void vec_append_byte(void **ptr, u8 byte) -{ - vec_ensure_remaining(ptr, 1); - vec_t *vec = VEC_GET(*ptr); - vec->bytes[vec->size++] = byte; -} - -void vec_append(void **ptr, void *data, u64 size) -{ - vec_ensure_remaining(ptr, size); - vec_t *vec = VEC_GET(*ptr); - memcpy(*ptr + vec->size, data, size); - vec->size += size; -} - -void vec_clone(void **dest, void **src) -{ - if (!dest || !src || !*src) - return; - vec_make(dest, VEC_SIZE(*src)); - memcpy(*dest, *src, VEC_SIZE(*src)); - VEC_SIZE(*dest) = VEC_SIZE(*src); -} |