39 righe
762 B
C
39 righe
762 B
C
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#include <stdio.h>
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#include <string.h>
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#include <errno.h>
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#include "vector.h"
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static int grow(struct vector *vec, int gently)
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{
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size_t new_alloc;
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void *new_data;
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new_alloc = vec->alloc * 3 / 2;
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if (!new_alloc)
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new_alloc = 8;
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new_data = realloc(vec->data, new_alloc * vec->size);
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if (!new_data) {
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if (gently)
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return ENOMEM;
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perror("vector.c:grow()");
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exit(1);
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}
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vec->data = new_data;
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vec->alloc = new_alloc;
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return 0;
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}
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int vector_push(struct vector *vec, const void *data, int gently)
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{
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int rc;
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if (vec->count == vec->alloc && (rc = grow(vec, gently)))
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return rc;
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if (data)
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memmove(vec->data + vec->count * vec->size, data, vec->size);
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else
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memset(vec->data + vec->count * vec->size, 0, vec->size);
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vec->count++;
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return 0;
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}
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