fmtnum.c revision 3e14f97f673e8a630f076077de35afdd43dc1587
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin/***********************************************************************
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin* *
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin* This software is part of the ast package *
3e14f97f673e8a630f076077de35afdd43dc1587Roger A. Faulkner* Copyright (c) 1985-2010 AT&T Intellectual Property *
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin* and is licensed under the *
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin* Common Public License, Version 1.0 *
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin* by AT&T Intellectual Property *
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin* *
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin* A copy of the License is available at *
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin* http://www.opensource.org/licenses/cpl1.0.txt *
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin* (with md5 checksum 059e8cd6165cb4c31e351f2b69388fd9) *
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin* *
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin* Information and Software Systems Research *
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin* AT&T Research *
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin* Florham Park NJ *
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin* *
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin* Glenn Fowler <gsf@research.att.com> *
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin* David Korn <dgk@research.att.com> *
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin* Phong Vo <kpv@research.att.com> *
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin* *
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin***********************************************************************/
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin#pragma prototyped
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin/*
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * Glenn Fowler
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * AT&T Research
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin *
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * return scaled number n
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * string width is 5 chars or less
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * if m>1 then n divided by m before scaling
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin */
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin#include <ast.h>
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chinchar*
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chinfmtnum(register unsigned long n, int m)
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin{
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin register int i;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin register unsigned long r;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin char* buf;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin int z;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin char suf[2];
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin if (m > 1)
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin {
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin r = n;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin n /= m;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin r -= n;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin }
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin else
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin r = 0;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin suf[1] = 0;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin if (n < 1024)
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin suf[0] = 0;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin else if (n < 1024 * 1024)
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin {
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin suf[0] = 'k';
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin r = ((n % 1024) * 100) / 1024;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin n /= 1024;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin }
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin else if (n < 1024 * 1024 * 1024)
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin {
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin suf[0] = 'm';
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin r = ((n % (1024 * 1024)) * 100) / (1024 * 1024);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin n /= 1024 * 1024;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin }
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin else
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin {
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin suf[0] = 'g';
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin r = ((n % (1024 * 1024 * 1024)) * 100) / (1024 * 1024 * 1024);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin n /= 1024 * 1024 * 1024;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin }
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin if (r)
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin {
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin if (n >= 100)
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin r = 0;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin else if (n >= 10)
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin {
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin i = 1;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin if (r >= 10)
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin r /= 10;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin }
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin else
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin i = 2;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin }
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin buf = fmtbuf(z = 8);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin if (r)
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin sfsprintf(buf, z, "%lu.%0*lu%s", n, i, r, suf);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin else
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin sfsprintf(buf, z, "%lu%s", n, suf);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin return buf;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin}