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