#include <string.h>
Include dependency graph for strnstr.c:
Functions | |
| char * | strnstr (const char *s, const char *find, size_t slen) |
| Finds the first occurrence of find in the initial slen characters of the object pointed to by s. More... | |
Function Documentation
◆ strnstr()
| char* strnstr | ( | const char * | s, |
| const char * | find, | ||
| size_t | slen | ||
| ) |
Finds the first occurrence of find in the initial slen characters of the object pointed to by s.
Locates the first occurrence of the null-terminated string find in the string s, where not more than slen characters are searched. Characters that appear after a ‘\0’ character are not searched.
The behavior is undefined if either find or s is not a pointer to a null-terminated byte string.
- Parameters
-
s pointer to the null-terminated byte string to examine find pointer to the null-terminated byte string to search for slen maxinum number of characters to search for
- Returns
- If find is an empty string, s is returned; if find occurs nowhere in s, NULL is returned; otherwise a pointer to the first character of the first occurrence of find is returned.
References NULL, s, sc, strlen(), and strncmp().
Referenced by strnstr_test(), and strnstr_test_null().
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