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/* ISC license. */
#include <string.h>
#include <errno.h>
#include <skalibs/stralloc.h>
int stralloc_insertb (stralloc *sa, size_t offset, char const *s, size_t n)
{
if (offset > sa->len) return (errno = EINVAL, 0) ;
if (!stralloc_readyplus(sa, n)) return 0 ;
memmove(sa->s + offset + n, sa->s + offset, sa->len - offset) ;
sa->len += n ;
memmove(sa->s + offset, s, n) ;
return 1 ;
}
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