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