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/*
* This program source code file is part of KiCad, a free EDA CAD application.
*
* Copyright (C) 2020 Ian McInerney <ian.s.mcinerney@ieee.org>
* Copyright (C) 2007-2014 Jean-Pierre Charras, jp.charras at wanadoo.fr
* Copyright The KiCad Developers, see AUTHORS.TXT for contributors.
*
* 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 2
* 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, you may find one here:
* http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
* or you may search the http://www.gnu.org website for the version 2 license,
* or you may write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
/**
* @file macros.h
* @brief This file contains miscellaneous commonly used macros and functions.
*/
#ifndef MACROS_H
#define MACROS_H
#include <wx/string.h>
#if defined( __has_attribute )
#define KI_HAS_ATTRIBUTE( x ) __has_attribute( x )
#else
#define KI_HAS_ATTRIBUTE( x ) 0
#endif
// Based on the declaration inside the LLVM source code
#if defined( __cplusplus ) && defined( __has_cpp_attribute )
#define KI_HAS_CPP_ATTRIBUTE( x ) __has_cpp_attribute( x )
#else
#define KI_HAS_CPP_ATTRIBUTE( x ) 0
#endif
/**
* The KI_FALLTHROUGH macro is to be used when switch statement cases should purposely
* fallthrough from one to the next. It must be followed by a ";".
*
* Sample code:
* switch( a )
* {
* case 1:
* // Some code
* KI_FALLTHROUGH;
*
* case 2:
* // More code
* break;
* }
*/
#if __cplusplus >= 201703L
// C++ 17 includes this macro on all compilers
#define KI_FALLTHROUGH [[fallthrough]]
#elif KI_HAS_CPP_ATTRIBUTE( clang::fallthrough )
// Clang provides this attribute to silence the "-Wimplicit-fallthrough" warning
#define KI_FALLTHROUGH [[clang::fallthrough]]
#elif KI_HAS_CPP_ATTRIBUTE( gnu::fallthrough )
// GNU-specific C++ attribute to silencing the warning
#define KI_FALLTHROUGH [[gnu::fallthrough]]
#elif defined( __GNUC__ ) && __GNUC__ >= 7
// GCC 7+ includes the "-Wimplicit-fallthrough" warning, and this attribute to silence it
#define KI_FALLTHROUGH __attribute__ ((fallthrough))
#else
// In every other case, don't do anything
#define KI_FALLTHROUGH ( ( void ) 0 )
#endif
/**
* Stringifies the given parameter by placing in quotes.
*
* @param cstring STRING (no spaces)
* @return "STRING"
*/
#define TO_STR2(x) #x
#define TO_STR(x) TO_STR2(x)
#define UNIMPLEMENTED_FOR( type ) \
wxFAIL_MSG( wxString::Format( wxT( "%s: unimplemented for %s" ), __FUNCTION__, type ) )
#endif // MACROS_H
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