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2015-07-10T11:42:45Z

以“<font color="quartz" size ="+2"> '''WMath.cpp ''' </font> <pre style="color:royalblue"> ‎-*- mode: jde; c-basic-offset: 2; indent-tabs-mode: nil -*-： /* Part...”为内容创建页面

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<font color="quartz" size ="+2"> '''WMath.cpp ''' </font>

<pre style="color:royalblue">
/* -*- mode: jde; c-basic-offset: 2; indent-tabs-mode: nil -*- */

/*
Part of the Wiring project - http://wiring.org.co
Copyright (c) 2004-06 Hernando Barragan
Modified 13 August 2006, David A. Mellis for Arduino - http://www.arduino.cc/

This library 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 2.1 of the License, or (at your option) any later version.

This library 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 library; if not, write to the
Free Software Foundation, Inc., 59 Temple Place, Suite 330,
Boston, MA 02111-1307 USA

$Id$
*/

extern "C" {
#include "stdlib.h"
}

void randomSeed(unsigned int seed)
{
if (seed != 0) {
srandom(seed);
}
}

long random(long howbig)
{
if (howbig == 0) {
return 0;
}
return random() % howbig;
}

long random(long howsmall, long howbig)
{
if (howsmall >= howbig) {
return howsmall;
}
long diff = howbig - howsmall;
return random(diff) + howsmall;
}

long map(long x, long in_min, long in_max, long out_min, long out_max)
{
return (x - in_min) * (out_max - out_min) / (in_max - in_min) + out_min;
}

unsigned int makeWord(unsigned int w) { return w; }
unsigned int makeWord(unsigned char h, unsigned char l) { return (h << 8) | l; }
</pre>

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Cores:WMath.cpp - 版本历史

Admin：以“ '''WMath.cpp '''
/* -- mode: jde; c-basic-offset: 2; indent-tabs-mode: nil -- / / Part...”为内容创建页面