62 lines
1.6 KiB
C++
62 lines
1.6 KiB
C++
/*
|
|
* This file is part of libgim.
|
|
*
|
|
* libgim is free software: you can redistribute it and/or modify it under the
|
|
* terms of the GNU General Public License as published by the Free Software
|
|
* Foundation, either version 3 of the License, or (at your option) any later
|
|
* version.
|
|
*
|
|
* libgim 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 General Public License for more
|
|
* details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with libgim. If not, see <http://www.gnu.org/licenses/>.
|
|
*
|
|
* Copyright 2011-2014 Danny Robson <danny@nerdcruft.net>
|
|
*/
|
|
|
|
#ifndef __UTIL_TYPES_HPP
|
|
#define __UTIL_TYPES_HPP
|
|
|
|
#include <cstdint>
|
|
#include <cstdlib>
|
|
#include <memory>
|
|
#include <stdexcept>
|
|
|
|
//-----------------------------------------------------------------------------
|
|
/// Returns the number of elements of a statically allocated array
|
|
template <typename T, size_t N>
|
|
constexpr size_t elems(const T (&)[N])
|
|
{ return N; }
|
|
|
|
|
|
template <class T, class...Args>
|
|
std::unique_ptr<T>
|
|
make_unique(Args&&... args) {
|
|
return std::unique_ptr<T> (new T(std::forward<Args>(args)...));
|
|
}
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
template <class T>
|
|
T
|
|
first (T a) {
|
|
if (a)
|
|
return a;
|
|
|
|
throw std::logic_error ("no valid object");
|
|
}
|
|
|
|
template <class T, class ...Args>
|
|
T
|
|
first (T a, Args&& ...b) {
|
|
if (a)
|
|
return a;
|
|
|
|
return first (std::forward<Args>(b)...);
|
|
}
|
|
|
|
#endif
|