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vec.c
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vec.c
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#include <string.h>
#include <stdint.h>
#include <stdlib.h>
#include "vec.h"
void vec_add1(struct vec_basestruct *ctl,size_t sz)
{
if (!ctl->alen) {
ctl->alen = 8;
if (SIZE_MAX / 8 < sz)
ctl->alen = 1;
ctl->buf = malloc(ctl->alen * sz);
if (!ctl->buf)
abort();
} else if (ctl->len >= ctl->alen) {
ctl->alen *= 2;
if (SIZE_MAX / ctl->alen < sz)
abort();
ctl->buf = realloc(ctl->buf,ctl->alen * sz);
if (!ctl->buf)
abort();
}
++ctl->len;
}
void vec_addn(struct vec_basestruct *ctl,size_t sz,size_t n)
{
if (!ctl->alen) {
if (SIZE_MAX / 8 >= sz)
ctl->alen = 8;
else
ctl->alen = 1;
}
size_t nlen = ctl->alen;
ctl->len += n;
while (ctl->len > nlen)
nlen *= 2;
if (nlen > ctl->alen) {
ctl->alen = nlen;
if (SIZE_MAX / nlen < sz)
abort();
ctl->buf = realloc(ctl->buf,nlen * sz);
if (!ctl->buf)
abort();
} else if (!ctl->buf) {
ctl->buf = malloc(ctl->alen * sz);
if (!ctl->buf)
abort();
}
}