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68 lines
1.6 KiB
C
68 lines
1.6 KiB
C
/* See the end of this file for copyright and license terms. */
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/* strnlen */
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#define _POSIX_C_SOURCE 200809L
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#include <errno.h>
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#include <string.h>
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#include "neo/_error.h"
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#include "neo/_nalloc.h"
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#include "neo/_nref.h"
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#include "neo/_nstr.h"
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#include "neo/_stddef.h"
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#include "neo/_types.h"
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nstr_t *nstrcat(const nstr_t *s1, const nstr_t *s2, error *err)
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{
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if (s1 == nil) {
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yeet(err, EFAULT, "First string is nil");
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return nil;
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}
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if (s2 == nil) {
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yeet(err, EFAULT, "Second string is nil");
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return nil;
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}
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usize s1_size_without_nul = strlen(s1->_data);
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usize s2_size_without_nul = strlen(s2->_data);
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usize cat_size = s1_size_without_nul + s2_size_without_nul + 1;
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char *cat = nalloc(cat_size, err);
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catch(err) {
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return nil;
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}
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memcpy(cat, s1->_data, s1_size_without_nul);
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memcpy(cat + s1_size_without_nul, s2->_data, s2_size_without_nul);
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cat[s1_size_without_nul + s2_size_without_nul] = '\0';
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nstr_t *ret = nstr(cat, err);
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nfree(cat);
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return ret;
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}
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nstr_t *nstrcat_put(nstr_t *s1, nstr_t *s2, error *err)
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{
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nstr_t *cat = nstrcat(s1, s2, err);
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catch(err) {
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return nil;
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}
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nput(s1);
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nput(s2);
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return cat;
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}
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/*
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* This file is part of libneo.
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* Copyright (c) 2021 Fefie <owo@fef.moe>.
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*
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* libneo is non-violent software: you may only use, redistribute,
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* and/or modify it under the terms of the CNPLv6+ as found in
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* the LICENSE file in the source code root directory or at
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* <https://git.pixie.town/thufie/CNPL>.
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*
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* libneo comes with ABSOLUTELY NO WARRANTY, to the extent
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* permitted by applicable law. See the CNPLv6+ for details.
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*/
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