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annotate src/util.c @ 10:d6f8f73a0c50 v2.1

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util: make strnchr an actual strnchr
author Paper <paper@paper.us.eu.org>
date Fri, 22 Mar 2024 20:51:40 -0400
parents 0c98b46eaf73
children 2d7c810a1ac2
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1 #include "util.h"
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2
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3 #include <stdlib.h>
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4 #include <string.h>
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6 /* reimplementations of non-portable stdlib functions */
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7
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8 size_t EDL_internal_strnlen(const char* s, size_t maxlen) {
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9 size_t len;
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11 for (len = 0; len < maxlen; len++, s++) {
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12 if (!*s)
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13 break;
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14 }
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16 return len;
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17 }
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19 char* EDL_internal_strnchr(const char* haystack, char needle, size_t length) {
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d6f8f73a0c50 util: make strnchr an actual strnchr
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20 for (; length && *haystack && *haystack != needle; haystack++, length--);
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22 return length ? haystack : NULL;
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23 }
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25 char* EDL_internal_strdup(const char* s) {
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26 const size_t len = strlen(s);
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28 char* d = malloc((len + 1) * sizeof(char));
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29 memcpy(d, s, len * sizeof(char));
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30 d[len] = '\0';
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32 return d;
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33 }