/*
 * Copyright (c) 2013 Ambroz Bizjak
 * All rights reserved.
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR 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.
 */

#ifndef AMBROLIB_STRUCT_IF_H
#define AMBROLIB_STRUCT_IF_H

namespace APrinter {

#define AMBRO_STRUCT_IF(name, condition) \
template <bool name##__IfEnable, typename name##__IfDummy = void> \
struct name##__impl {}; \
using name = name##__impl<(condition)>; \
template <typename name##__IfDummy> \
struct name##__impl <true, name##__IfDummy>

#define AMBRO_STRUCT_ELSE(name) \
; template <typename name##__IfDummy> \
struct name##__impl <false, name##__IfDummy>

#define APRINTER_STRUCT_IF_TEMPLATE(name) \
template <bool name##__IfEnable, typename name##__IfDummy = void> \
struct name {}; \
template <typename name##__IfDummy> \
struct name <true, name##__IfDummy>

}

#endif
