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[release] / src / liblimb / samisc.h / sa_colptr.c 

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/* This file is part of limb                           https://lila.oss/limb
 * Copyright (C) 2023 Olivier Brunel                          jjk@jjacky.com */
/* SPDX-License-Identifier: GPL-2.0-only */
#include <limb/samisc.h>

int
sa_colptr(stralloc *sa, size_t from, size_t end)
{
    size_t arroff = sa->len;
    /* first collect the offsets from sa->s, as relocation might happen as we
     * grow sa to store the array */
    int n = sa_coloff(sa, from, 0, end);
    if (n < 0)
        return n;
    /* then turn offsets into pointers */
    sa_off2ptr(sa, arroff, n);
    return n;
}