freebsd-skq/contrib/gnu-sort/lib/inttostr.c

50 lines
1.3 KiB
C

/* inttostr.c -- convert integers to printable strings
Copyright (C) 2001 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software Foundation,
Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
/* Written by Paul Eggert */
#include "inttostr.h"
/* Convert I to a printable string in BUF, which must be at least
INT_BUFSIZE_BOUND (INTTYPE) bytes long. Return the address of the
printable string, which need not start at BUF. */
char *
inttostr (inttype i, char *buf)
{
char *p = buf + INT_STRLEN_BOUND (inttype);
*p = 0;
if (i < 0)
{
do
*--p = '0' - i % 10;
while ((i /= 10) != 0);
*--p = '-';
}
else
{
do
*--p = '0' + i % 10;
while ((i /= 10) != 0);
}
return p;
}