kicad/include/enum_vector.h

47 lines
1.4 KiB
C++

/*
* This program source code file is part of KiCad, a free EDA CAD application.
*
* Copyright (C) 2017 CERN
* @author Maciej Suminski <maciej.suminski@cern.ch>
*
* This program 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.
*
* This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef DEFINE_ENUM_VECTOR
/**
* Macro to create const vectors containing enum values to enable easy iteration.
*
* Usage:
* [header]
* class A {
* DEFINE_ENUM_VECTOR( COLORS, { RED, GREEN, BLUE } );
* };
*
* [source]
* for( auto color : A::COLORS_vector ) {
* // do sth with color
* }
*
* DECLARE_ENUM_VECTOR( COLORS );
*/
#define DEFINE_ENUM_VECTOR(enum_name, ...) \
enum enum_name __VA_ARGS__; \
static constexpr enum_name enum_name##_vector[] = __VA_ARGS__;
#define DECLARE_ENUM_VECTOR(class_name, enum_name) \
constexpr class_name::enum_name class_name::enum_name##_vector[];
#endif