46 lines
736 B
C
46 lines
736 B
C
/*
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* strchr --- search a string for a character
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*
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* We supply this routine for those systems that aren't standard yet.
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*/
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#include <stdio.h>
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char *
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strchr(str, c)
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register const char *str, c;
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{
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if (c == '\0') {
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/* thanks to Mike Brennan ... */
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do {
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if (*str == c)
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return (char *) str;
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} while (*str++);
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} else {
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for (; *str; str++)
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if (*str == c)
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return (char *) str;
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}
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return NULL;
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}
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/*
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* strrchr --- find the last occurrence of a character in a string
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*
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* We supply this routine for those systems that aren't standard yet.
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*/
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char *
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strrchr(str, c)
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register const char *str, c;
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{
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register const char *save = NULL;
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for (; *str; str++)
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if (*str == c)
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save = str;
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return (char *) save;
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}
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