https://github.com/root-project/root
Tip revision: 708d2fe5bc0233e86cd484156edfd46bd399af4b authored by Rene Brun on 27 August 2008, 14:30:46 UTC
Tagging dev version 5.21/02
Tagging dev version 5.21/02
Tip revision: 708d2fe
projectn.h
/* -*- C++ -*- */
/************************************************************************
*
* Copyright(c) 1995~2006 Masaharu Goto (cint@pcroot.cern.ch)
*
* For the licensing terms see the file COPYING
*
************************************************************************/
/*
*
* Copyright (c) 1994
* Hewlett-Packard Company
*
* Permission to use, copy, modify, distribute and sell this software
* and its documentation for any purpose is hereby granted without fee,
* provided that the above copyright notice appear in all copies and
* that both that copyright notice and this permission notice appear
* in supporting documentation. Hewlett-Packard Company makes no
* representations about the suitability of this software for any
* purpose. It is provided "as is" without express or implied warranty.
*
*/
#ifndef PROJECTN_H
#define PROJECTN_H
#include <function.h>
template <class T>
struct singleton {
T first;
singleton(const T& a) : first(a) {}
operator T() { return first; }
singleton() : first(T()) {}
};
template <class T, class U>
struct select1st : unary_function<T, U> {
const U& operator()(const T& x) { return x.first; }
};
#endif