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STRCMP(3) 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 10.99 June 4, 1993 NetBSD 10.99