2012-04-21 00:04:34 +00:00
|
|
|
/*
|
|
|
|
epple2
|
2015-07-29 01:14:58 +00:00
|
|
|
Copyright (C) 2008 by Christopher A. Mosher <cmosher01@gmail.com>
|
2012-04-21 00:04:34 +00:00
|
|
|
|
|
|
|
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 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 General Public License for more details.
|
|
|
|
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
|
|
along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
*/
|
|
|
|
#ifndef UTIL_H
|
|
|
|
#define UTIL_H
|
|
|
|
|
|
|
|
class Util
|
|
|
|
{
|
|
|
|
public:
|
|
|
|
static int divideRoundUp(const int num, const int denom)
|
|
|
|
{
|
|
|
|
return (num+denom-1)/denom;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int divideRound(const int dividend, const int divisor)
|
|
|
|
{
|
|
|
|
return (dividend+divisor/2)/divisor;
|
|
|
|
}
|
|
|
|
|
|
|
|
template<typename T> static T mod(T x, const T m)
|
|
|
|
{
|
|
|
|
x %= m;
|
|
|
|
if (x < 0)
|
|
|
|
{
|
|
|
|
x += m;
|
|
|
|
}
|
|
|
|
return x;
|
|
|
|
}
|
|
|
|
|
|
|
|
template<typename T> static void constrain(const T& min, T& x, const T& lim)
|
|
|
|
{
|
|
|
|
if (x < min)
|
|
|
|
{
|
|
|
|
x = min;
|
|
|
|
}
|
|
|
|
else if (lim <= x)
|
|
|
|
{
|
|
|
|
x = lim-1;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
// 0x0 <= nib <= 0xF
|
|
|
|
// '0' <= ret <= 'F'
|
|
|
|
static char hexDigit(unsigned char nib)
|
|
|
|
{
|
|
|
|
return nib < 10 ? '0'+nib : 'A'+nib-10;
|
|
|
|
}
|
|
|
|
};
|
|
|
|
|
|
|
|
#endif
|