/*
* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
* All rights reserved.
* This component and the accompanying materials are made available
* under the terms of "Eclipse Public License v1.0"
* which accompanies this distribution, and is available
* at the URL "http://www.eclipse.org/legal/epl-v10.html".
*
* Initial Contributors:
* Nokia Corporation - initial contribution.
*
* Contributors:
*
* Description:
*
*/
#ifndef _unary_h
#define _unary_h
#include <cmath>
#include <cfloat>
#include <functional> //*TY 12/26/1998 - added to get unary_function
#if !defined (STLPORT) || defined (_STLP_USE_NAMESPACES)
using std::unary_function;
#endif
struct odd : public unary_function<int, bool>
{
// odd() {}
bool operator()(int n_) const { return(n_ % 2) == 1; }
};
struct positive : public unary_function<int, bool>
{
typedef int argument_type;
typedef bool result_type;
// positive() {}
bool operator()(int n_) const { return n_ >= 0; }
};
struct square_root : public unary_function<double, double>
{
typedef double argument_type;
typedef double result_type;
square_root() {}
square_root(const square_root &) {}
double operator()(double x_) const
{ return ::sqrt(x_); }
};
#endif // _unary_h