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/* ----------------------------------------------------------------------------
* ATMEL Microcontroller Software Support
* ----------------------------------------------------------------------------
* Copyright (c) 2008, Atmel Corporation
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* - Redistributions of source code must retain the above copyright notice,
* this list of conditions and the disclaimer below.
*
* Atmel's name may not be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* DISCLAIMER: THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE
* DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
* OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
* ----------------------------------------------------------------------------
*/
//------------------------------------------------------------------------------
// Headers
//------------------------------------------------------------------------------
#include "math.h"
#include "trace.h"
//------------------------------------------------------------------------------
// Exported functions
//------------------------------------------------------------------------------
//------------------------------------------------------------------------------
/// Returns the minimum value between two integers.
/// \param a First integer to compare.
/// \param b Second integer to compare.
//------------------------------------------------------------------------------
unsigned int min(unsigned int a, unsigned int b)
{
if (a < b) {
return a;
}
else {
return b;
}
}
//------------------------------------------------------------------------------
/// Returns the absolute value of an integer.
/// \param value Integer value.
//------------------------------------------------------------------------------
// Do not call this function "abs", problem with gcc !
unsigned int absv(signed int value)
{
if (value < 0) {
return -value;
}
else {
return value;
}
}
//------------------------------------------------------------------------------
/// Computes and returns x power of y.
/// \param x Value.
/// \param y Power.
//------------------------------------------------------------------------------
unsigned int power(unsigned int x, unsigned int y)
{
unsigned int result = 1;
while (y > 0) {
result *= x;
y--;
}
return result;
}
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