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Forked from jehiah/strnchr.c
Created February 28, 2012 22:04
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strnchr because it doesn't exist for some reason
#include <stdlib.h>
/*
Returns a pointer to the first occurrence of character in the C string str.
The terminating null-character is considered part of the C string. Therefore,
it can also be located to retrieve a pointer to the end of a string.
@param str the string to be searched
@param len the number of characters to search
@param character the character to search for
@returns A pointer to the first occurrence of character in str.
If the value is not found, the function returns a null pointer.
*/
const char *strnchr(const char *str, size_t len, int character) {
const char *end = str + len;
char c = (char)character;
do {
if (*str == c) {
return str;
}
} while (++str < end);
return NULL;
}
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