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#include <string.h>
#include <string.h>
#include <xlocale.h>
The strcasestr() function is similar to strstr(), but ignores the case of both strings.
The strcasestr_l() function does the same as strcasestr() but takes an explicit locale rather than using the current locale.
The strnstr() function locates the first occurrence of the null-terminated string little in the string big, where not more than len characters are searched. Characters that appear after a ‘\0’ character are not searched. Since the strnstr() function is a FreeBSD specific API, it should only be used when portability is not a concern.
const char *largestring = "Foo Bar Baz"; const char *smallstring = "Bar"; char *ptr;ptr = strstr(largestring, smallstring);
The following sets the pointer ptr to NULL, because only the first 4 characters of largestring are searched:
const char *largestring = "Foo Bar Baz"; const char *smallstring = "Bar"; char *ptr;ptr = strnstr(largestring, smallstring, 4);
STRSTR (3) | October 11, 2001 |
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