STRCMP(3) BSD Library Functions Manual STRCMP(3)
NAME
strcmp, strncmp -- compare strings
LIBRARY
Standard C Library (libc, -lc)
SYNOPSIS
#include <string.h>
int
strcmp(const char *s1, const char *s2);
int
strncmp(const char *s1, const char *s2, size_t n);
DESCRIPTION
The strcmp() and strncmp() functions lexicographically compare the null-terminated strings s1 and s2.
The strncmp() function compares not more than n characters. Because strncmp() is designed for compar-ing comparing
ing strings rather than binary data, characters that appear after a `\0' character are not compared.
RETURN VALUES
The strcmp() and strncmp() return an integer greater than, equal to, or less than 0, according as the
string s1 is greater than, equal to, or less than the string s2. The comparison is done using unsigned
characters, so that `\200' is greater than `\0'.
SEE ALSO
bcmp(3), memcmp(3), strcasecmp(3), strcoll(3), strxfrm(3)
STANDARDS
The strcmp() and strncmp() functions conform to ISO/IEC 9899:1990 (``ISO C90'').
BSD October 11, 2001 BSD
|