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Cream of the Crop 1
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DJLSR106.ARJ
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STRXFRM.C
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C/C++ Source or Header
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1992-03-02
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67 lines
/* This is file STRXFRM.C */
/* This file may have been modified by DJ Delorie (Jan 1991). If so,
** these modifications are Coyright (C) 1991 DJ Delorie, 24 Kirsten Ave,
** Rochester NH, 03867-2954, USA.
*/
/*-
* Copyright (c) 1990 The Regents of the University of California.
* All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Chris Torek.
*
* Redistribution and use in source and binary forms are permitted
* provided that: (1) source distributions retain this entire copyright
* notice and comment, and (2) distributions including binaries display
* the following acknowledgement: ``This product includes software
* developed by the University of California, Berkeley and its contributors''
* in the documentation or other materials provided with the distribution
* and in all advertising materials mentioning features or use of this
* software. Neither the name of the University nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*/
#if defined(LIBC_SCCS) && !defined(lint)
static char sccsid[] = "@(#)strxfrm.c 5.1 (Berkeley) 5/17/90";
#endif /* LIBC_SCCS and not lint */
#include <sys/stdc.h>
#include <string.h>
/*
* Transform src, storing the result in dst, such that
* strcmp() on transformed strings returns what strcoll()
* on the original untransformed strings would return.
*/
size_t
strxfrm(dst, src, n)
register char *dst;
register const char *src;
register size_t n;
{
register size_t r = 0;
register int c;
/*
* Since locales are unimplemented, this is just a copy.
*/
if (n != 0) {
while ((c = *src++) != 0) {
r++;
if (--n == 0) {
while (*src++ != 0)
r++;
break;
}
*dst++ = c;
}
*dst = 0;
}
return (r);
}