// SPDX-License-Identifier: BSD-2-Clause
/* Copyright (C) 2019 - 2020 Intel Corporation. */
#pragma once
#ifdef __cplusplus
extern "C" {
#endif
#include <stddef.h>
#include <stdlib.h>
#define VEC_INIT_SIZE (8)
#define VEC(name, type)\
struct name {\
type *buffer;\
size_t size;\
size_t capacity;\
}
static inline int
vec_reserve(void *vec, size_t ncapacity, size_t s)
{
size_t ncap = ncapacity == 0 ? VEC_INIT_SIZE : ncapacity;
VEC(vvec, void) *vecp = (struct vvec *)vec;
void *tbuf = realloc(vecp->buffer, s * ncap);
if (tbuf == NULL) {
return -1;
}
vecp->buffer = tbuf;
vecp->capacity = ncap;
return 0;
}
#define VEC_RESERVE(vec, ncapacity)\
(((vec)->size == 0 || (ncapacity) > (vec)->size) ?\
vec_reserve((void *)vec, ncapacity, sizeof(*(vec)->buffer)) :\
0)
#define VEC_INSERT(vec, element)\
((vec)->buffer[(vec)->size - 1] = (element), 0)
#define VEC_INC_SIZE(vec)\
(((vec)->size++), 0)
#define VEC_INC_BACK(vec)\
((vec)->capacity == (vec)->size ?\
(VEC_RESERVE((vec), ((vec)->capacity * 2)) == 0 ?\
VEC_INC_SIZE(vec) : -1) :\
VEC_INC_SIZE(vec))
#define VEC_PUSH_BACK(vec, element)\
(VEC_INC_BACK(vec) == 0? VEC_INSERT(vec, element) : -1)
#define VEC_FOREACH(el, vec)\
size_t _vec_i; \
for (_vec_i = 0;\
_vec_i < (vec)->size && (((el) = (vec)->buffer[_vec_i]), 1);\
++_vec_i)
#define VEC_SIZE(vec)\
((vec)->size)
#define VEC_GET(vec, id)\
(&(vec)->buffer[id])
#define VEC_CLEAR(vec) do {\
(vec)->size = 0;\
} while (0)
#define VEC_DELETE(vec) do {\
free((vec)->buffer);\
(vec)->buffer = NULL;\
(vec)->size = 0;\
(vec)->capacity = 0;\
} while (0)
#ifdef __cplusplus
}
#endif