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56 lines
1.3 KiB
C

/* See the end of this file for copyright and license terms. */
#include <errno.h>
#include <string.h>
#include "neo/_error.h"
#include "neo/_nref.h"
#include "neo/_nstr.h"
#include "neo/_stddef.h"
#include "neo/_types.h"
int nstrcmp(const nstr_t *s1, const nstr_t *s2, error *err)
{
/*
* Return values are always undefined if an error was yeeted so it's not
* strictly necessary to return a correct(ish) result here, but the
* philosophy of libneo is to always behave in a way that is the least
* harmful.
*/
if (s1 == nil) {
yeet(err, EFAULT, "First string is nil");
if (s2 == nil)
return 0;
return -1;
}
if (s2 == nil) {
yeet(err, EFAULT, "Second string is nil");
return 1;
}
int ret;
usize maxbytes;
if (s1->_size > s2->_size)
maxbytes = s2->_size;
else
maxbytes = s1->_size;
ret = strncmp(s1->_data, s2->_data, maxbytes);
neat(err);
return ret;
}
/*
* This file is part of libneo.
* Copyright (c) 2021 Fefie <owo@fef.moe>.
*
* libneo is non-violent software: you may only use, redistribute,
* and/or modify it under the terms of the CNPLv6+ as found in
* the LICENSE file in the source code root directory or at
* <https://git.pixie.town/thufie/CNPL>.
*
* libneo comes with ABSOLUTELY NO WARRANTY, to the extent
* permitted by applicable law. See the CNPLv6+ for details.
*/