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// Copyright (C) 2004, 2009 International Business Machines and others.
// All Rights Reserved.
// This code is published under the Eclipse Public License.
//
// $Id: IpUtils.hpp 2167 2013-03-08 11:15:38Z stefan $
//
// Authors: Carl Laird, Andreas Waechter IBM 2004-08-13
#ifndef __IPUTILS_HPP__
#define __IPUTILS_HPP__
// Standard Ip Include Files
#include "IpTypes.hpp"
#include "IpDebug.hpp"
namespace Ipopt
{
inline Index Max(Index a, Index b)
{
return ((a) > (b) ? (a) : (b));
}
inline Index Max(Index a, Index b, Index c)
{
Index max = Max(a,b);
max = Max(max, c);
return max;
}
inline Index Max(Index a, Index b, Index c, Index d)
{
Index max = Max(a, b, c);
max = Max(max, d);
return max;
}
inline Index Min(Index a, Index b)
{
return ((a) < (b) ? (a) : (b));
}
inline Index Min(Index a, Index b, Index c)
{
Index min = Min(a,b);
min = Min(min, c);
return min;
}
inline Index Min(Index a, Index b, Index c, Index d)
{
Index min = Min(a, b, c);
min = Min(min, d);
return min;
}
///////////////////////////////////////////
inline Number Max(Number a, Number b)
{
return ((a) > (b) ? (a) : (b));
}
inline Number Max(Number a, Number b, Number c)
{
Number max = Max(a,b);
max = Max(max, c);
return max;
}
inline Number Max(Number a, Number b, Number c, Number d)
{
Number max = Max(a, b, c);
max = Max(max, d);
return max;
}
inline Number Min(Number a, Number b)
{
return ((a) < (b) ? (a) : (b));
}
inline Number Min(Number a, Number b, Number c)
{
Number min = Min(a,b);
min = Min(min, c);
return min;
}
inline Number Min(Number a, Number b, Number c, Number d)
{
Number min = Min(a, b, c);
min = Min(min, d);
return min;
}
/** Function returning true iff the argument is a valid double number
* (not NaN or Inf). */
bool IsFiniteNumber(Number val);
/** Function returning a random number between 0 and 1 */
Number IpRandom01();
/** Function resetting the random number generator */
void IpResetRandom01();
/** method determining CPU time */
Number CpuTime();
/** method determining system time */
Number SysTime();
/** method determining wallclock time since first call */
Number WallclockTime();
/** Method for comparing two numbers within machine precision. The
* return value is true if lhs is less or equal the rhs, relaxing
* this inequality by something a little larger than machine
* precision relative to the absolute value of BasVal. */
bool Compare_le(Number lhs, Number rhs, Number BasVal);
/** Method for printing a formatted output to a string with given size.
*/
int Snprintf(char* str, long size, const char* format, ...);
} //namespace Ipopt
#endif
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