Aryadev Chavali
55293ae396
I'm going to implement a normal stable vector instead of an inline vector so we have both options for use. I think that's smarter than just sticking to one.
77 lines
1.8 KiB
C
77 lines
1.8 KiB
C
/* Copyright (C) 2025 Aryadev Chavali
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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* FOR A PARTICULAR PURPOSE. See the Unlicense for details.
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* You may distribute and modify this code under the terms of the Unlicense,
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* which you should have received a copy of along with this program. If not,
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* please go to <https://unlicense.org/>.
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* Created: 2025-08-19
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* Description: Inline Vector implementation
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*/
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#include <malloc.h>
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#include <string.h>
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#include "./alisp.h"
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void ivec_make(void **ptr, u64 size)
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{
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if (!ptr)
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return;
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ivec_t *ivector = calloc(1, sizeof(*ivector) + size);
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ivector->size = 0;
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ivector->capacity = size;
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*ptr = (ivector + 1);
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}
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void ivec_free(void **data)
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{
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if (!data || !*data)
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return;
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free(IVEC_GET(*data));
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*data = NULL;
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}
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void ivec_ensure_remaining(void **ptr, u64 space)
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{
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if (!ptr || !*ptr)
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return;
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ivec_t *ivec = IVEC_GET(*ptr);
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if (ivec->capacity - ivec->size < space)
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{
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void *new_ivec = NULL;
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ivec_make(&new_ivec, MAX(ivec->capacity * IVEC_MULT, ivec->size + space));
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IVEC_SIZE(new_ivec) = ivec->size;
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memcpy(new_ivec, *ptr, ivec->size);
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ivec_free(ptr);
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*ptr = new_ivec;
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}
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}
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void ivec_append_byte(void **ptr, u8 byte)
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{
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ivec_ensure_remaining(ptr, 1);
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ivec_t *ivec = IVEC_GET(*ptr);
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ivec->bytes[ivec->size++] = byte;
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}
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void ivec_append(void **ptr, void *data, u64 size)
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{
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ivec_ensure_remaining(ptr, size);
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ivec_t *ivec = IVEC_GET(*ptr);
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memcpy(*ptr + ivec->size, data, size);
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ivec->size += size;
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}
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void ivec_clone(void **dest, void **src)
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{
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if (!dest || !src || !*src)
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return;
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ivec_make(dest, IVEC_SIZE(*src));
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memcpy(*dest, *src, IVEC_SIZE(*src));
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IVEC_SIZE(*dest) = IVEC_SIZE(*src);
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}
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