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//
// srecord - Manipulate EPROM load files
// Copyright (C) 2008-2010 Peter Miller
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation; either version 3 of the License, 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 Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with this program. If not, see
// <http://www.gnu.org/licenses/>.
//
#include <cstdio>
#include <srecord/pretty_size.h>
std::string
srecord::pretty_size(long long x, int width)
{
double tmp = x;
bool negative = false;
if (x < 0)
{
negative = true;
tmp = -tmp;
}
const char *suffix = " kMGTPEZY";
while (tmp >= 1024)
{
tmp /= 1024;
++suffix;
}
if (*suffix == ' ')
suffix = "";
else
--width;
if (width < 1)
width = 1;
if (negative)
tmp = -tmp;
char buffer[20];
int prec = 0;
if (tmp >= 100)
prec = 0;
else if (tmp >= 10)
prec = 1;
else
prec = 2;
snprintf(buffer, sizeof(buffer), "%*.*f%.1s", width, prec, tmp, suffix);
return buffer;
}
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