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/*
* wstring.c -- BSD string(3) for wchar
*/
/*
* Copyright (c) 1989 Software Research Associates, Inc.
*
* Permission to use, copy, modify, and distribute this software and its
* documentation for any purpose and without fee is hereby granted, provided
* that the above copyright notice appear in all copies and that both that
* copyright notice and this permission notice appear in supporting
* documentation, and that the name of Software Research Associates not be
* used in advertising or publicity pertaining to distribution of the
* software without specific, written prior permission. Software Research
* Associates makes no representations about the suitability of this software
* for any purpose. It is provided "as is" without express or implied
* warranty.
*
* Author: Makoto Ishisone, Software Research Associates, Inc., Japan
* ishisone@sra.co.jp
*/
/* $Id: wstring.c,v 2.2 1994/06/06 05:20:40 ishisone Rel $ */
#include "WStr.h"
wchar *
wstrcat(s1, s2)
wchar *s1, *s2;
{
wchar *ret = s1;
while (*s1++)
;
s1--;
while (*s1++ = *s2++)
;
return ret;
}
wchar *
wstrncat(s1, s2, n)
wchar *s1, *s2;
int n;
{
wchar *ret = s1;
while (*s1++)
;
s1--;
while (n-- > 0 && (*s1++ = *s2++))
;
if (n < 0)
*s1 = 0;
return ret;
}
int
wstrcmp(s1, s2)
wchar *s1, *s2;
{
while (*s1 && *s1 == *s2)
s1++, s2++;
return (int)(*s1 - *s2);
}
int
wstrncmp(s1, s2, n)
wchar *s1, *s2;
int n;
{
while (n-- > 0 && *s1 && *s1 == *s2)
s1++, s2++;
if (n < 0)
return 0;
return (int)(*s1 - *s2);
}
wchar *
wstrcpy(s1, s2)
wchar *s1, *s2;
{
wchar *ret = s1;
while (*s1++ = *s2++)
;
return ret;
}
wchar *
wstrncpy(s1, s2, n)
wchar *s1, *s2;
int n;
{
wchar *ret = s1;
while (n-- > 0 && (*s1++ = *s2++))
;
while (n-- > 0)
*s1++ = 0;
return ret;
}
int
wstrlen(s)
wchar *s;
{
int n = 0;
while (*s++)
n++;
return n;
}
wchar *
#if __STDC__ == 1
windex(wchar *s, wchar c)
#else
windex(s, c)
wchar *s, c;
#endif
{
int x;
while (x = *s++) {
if (x == c)
return s - 1;
}
return 0;
}
wchar *
#if __STDC__ == 1
wrindex(wchar *s, wchar c)
#else
wrindex(s, c)
wchar *s, c;
#endif
{
wchar *r = 0;
int x;
while (x = *s++) {
if (x == c)
r = s - 1;
}
return r;
}
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