ack/lang/cem/libcc.ansi/core/string/strxfrm.c
David Given d1cdb07719 Realise that the libc core can safely call other libc core functions, even if
they're not defined in the core: so putw() can call stdio stuff, for example.
So the earlier concept of pureness isn't necessary. Rename accordingly.
2018-06-21 23:24:23 +02:00

28 lines
444 B
C

/*
* (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
* See the copyright notice in the ACK home directory, in the file "Copyright".
*/
/* $Id$ */
#include <string.h>
size_t
strxfrm(register char* s1, register const char* save, register size_t n)
{
register const char* s2 = save;
while (*s2)
{
if (n > 1)
{
n--;
*s1++ = *s2++;
}
else
s2++;
}
if (n > 0)
*s1++ = '\0';
return s2 - save;
}