NAME strncmp - compare two strings up to a specified number of characters SYNOPSIS strncmp(s1, s2, n) TYPES s1 string s2 string n nonnegative integer return integer (1, 0 or -1) DESCRIPTION Let n1 = size(s1), n2 = size(s2) and m = min(n1, n2, n). This function compares up to m values of consecutive characters in the strings s1 and s2. If an inequality is encountered, the function returns 1 or -1 according as the greater character is in s1 or s2. If there has been no inequality, the function returns 1, 0, or -1 according as min(n1, n) is greater than, equal to, or less than min(n2, n); in particular, if n1 and n2 are both greater than equal to n, 0 is returned. EXAMPLE strncmp("abc", "xyz", 0) == 0 strncmp("abc", "xyz", 1) == -1 strncmp("abc", "", 1) == 1 strncmp("a", "b", 2) == -1 strncmp("ab", "ac", 2) == -1 strncmp("\0ac", "\0b", 2) == -1 strncmp("ab", "abc", 2) == 0 strncmp("abc", "abd", 2) == 0 LIMITS none LINK LIBRARY This function uses FLAG stringrel(STRING *s1, STRING *s2), temporarily replacing the string sizes by min(n1,n) and min(n2,n). SEE ALSO strcat, strcpy, strerror, strlen, strncpy, strpos, strprintf, strscan, strscanf, substr ## Copyright (C) 2006 Ernest Bowen ## ## Calc is open software; you can redistribute it and/or modify it under ## the terms of the version 2.1 of the GNU Lesser General Public License ## as published by the Free Software Foundation. ## ## Calc is distributed in the hope that it will be useful, but WITHOUT ## ANY WARRANTY; without even the implied warranty of MERCHANTABILITY ## or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General ## Public License for more details. ## ## A copy of version 2.1 of the GNU Lesser General Public License is ## distributed with calc under the filename COPYING-LGPL. You should have ## received a copy with calc; if not, write to Free Software Foundation, Inc. ## 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA. ## ## @(#) $Revision: 30.3 $ ## @(#) $Id: strncmp,v 30.3 2013/08/11 01:16:03 chongo Exp $ ## @(#) $Source: /usr/local/src/bin/calc/help/RCS/strncmp,v $ ## ## Under source code control: 2006/03/03 03:32:44 ## File existed as early as: 2006 ## ## chongo /\oo/\ http://www.isthe.com/chongo/ ## Share and enjoy! :-) http://www.isthe.com/chongo/tech/comp/calc/