strcmp(3) - NetBSD Manual Pages

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STRCMP(3)               NetBSD 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 len);


DESCRIPTION

     The strcmp() and strncmp() functions lexicographically compare the nul-
     terminated strings s1 and s2.


RETURN VALUES

     The strcmp() and strncmp() functions return an integer greater than,
     equal to, or less than 0, according to whether 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'.

     The strncmp() function compares not more than len characters.


SEE ALSO

     bcmp(3), memcmp(3), strcasecmp(3), strcoll(3), strxfrm(3)


STANDARDS

     The strcmp() and strncmp() functions conform to ANSI X3.159-1989
     (``ANSI C89'').


NOTES

     If len is 0, strncmp() always returns 0.

NetBSD 9.3                       June 4, 1993                       NetBSD 9.3