STRSTR(3) | Library Functions Manual | STRSTR(3) |
strstr
, strcasestr
,
strnstr
—
#include <string.h>
char *
strstr
(const
char *big, const char
*little);
char *
strcasestr
(const
char *big, const char
*little);
char *
strnstr
(const
char *big, const char
*little, size_t
len);
strstr
() function locates the first occurrence of
the nul-terminated string little in the nul-terminated
string big.
The strcasestr
() function is similar to
strstr
(), but ignores the case of both strings. The
strnstr
() function locates the first occurrence of
the NUL-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
NetBSD specific API, it should only be used when
portability is not a concern.
NULL
is returned; otherwise
a pointer to the first character of the first occurrence of
little is returned.
Bar Baz
” portion of
largestring:
const char *largestring = "Foo Bar Baz"; const char *smallstring = "Bar"; char *ptr; ptr = strstr(largestring, smallstring);
strstr
() function conforms to
ISO/IEC 9899:1990 (“ISO C90”).
strnstr
() function originated in
FreeBSD.
September 24, 2014 | NetBSD 9.0 |