/* Copyright (C) 1989, 1990, 1991, 1992 Free Software Foundation, Inc. Written by James Clark (jjc@jclark.com) This file is part of groff. groff 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. groff 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 groff; see the file COPYING. If not, write to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #define INT_DIGITS 19 /* enough for 64 bit integer */ char *itoa(i) int i; { /* Room for INT_DIGITS digits, - and '\0' */ static char buf[INT_DIGITS + 2]; char *p = buf + INT_DIGITS + 1; /* points to terminating '\0' */ if (i >= 0) { do { *--p = '0' + (i % 10); i /= 10; } while (i != 0); return p; } else { /* i < 0 */ do { *--p = '0' - (i % 10); i /= 10; } while (i != 0); *--p = '-'; } return p; }