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/* -*- c++ -*- */
/*
* Copyright 2002,2012 Free Software Foundation, Inc.
*
* This file is part of GNU Radio
*
* GNU Radio 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 3, or (at your option)
* any later version.
*
* GNU Radio 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 GNU Radio; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street,
* Boston, MA 02110-1301, USA.
*/
#include <gnuradio/trellis/base.h>
#include <cmath>
#include <cstdio>
#include <stdexcept>
namespace gr {
namespace trellis {
bool dec2base(unsigned int num, int base, std::vector<int>& s)
{
int l = s.size();
unsigned int n = num;
for (int i = 0; i < l; i++) {
s[l - i - 1] = n % base; // MSB first
n /= base;
}
if (n != 0) {
printf("Number %d requires more than %d digits.", num, l);
return false;
} else
return true;
}
unsigned int base2dec(const std::vector<int>& s, int base)
{
int l = s.size();
unsigned int num = 0;
for (int i = 0; i < l; i++)
num = num * base + s[i];
return num;
}
bool dec2bases(unsigned int num, const std::vector<int>& bases, std::vector<int>& s)
{
int l = s.size();
unsigned int n = num;
for (int i = 0; i < l; i++) {
s[l - i - 1] = n % bases[l - i - 1];
n /= bases[l - i - 1];
}
if (n != 0) {
printf("Number %d requires more than %d digits.", num, l);
return false;
} else
return true;
}
unsigned int bases2dec(const std::vector<int>& s, const std::vector<int>& bases)
{
int l = s.size();
unsigned int num = 0;
for (int i = 0; i < l; i++)
num = num * bases[i] + s[i];
return num;
}
} /* namespace trellis */
} /* namespace gr */
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