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123 lines
3.9 KiB
123 lines
3.9 KiB
/*
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* This program source code file is part of KiCad, a free EDA CAD application.
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*
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* Copyright (C) 2020 Ian McInerney <ian.s.mcinerney@ieee.org>
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* Copyright (C) 2007-2014 Jean-Pierre Charras, jp.charras at wanadoo.fr
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* Copyright (C) 1992-2020 KiCad Developers, see AUTHORS.TXT for contributors.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, you may find one here:
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* http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
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* or you may search the http://www.gnu.org website for the version 2 license,
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* or you may write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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/**
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* @file macros.h
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* @brief This file contains miscellaneous commonly used macros and functions.
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*/
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#ifndef MACROS_H
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#define MACROS_H
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#include <wx/string.h>
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#if defined( __has_attribute )
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#define KI_HAS_ATTRIBUTE( x ) __has_attribute( x )
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#else
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#define KI_HAS_ATTRIBUTE( x ) 0
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#endif
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// Based on the declaration inside the LLVM source code
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#if defined( __cplusplus ) && defined( __has_cpp_attribute )
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#define KI_HAS_CPP_ATTRIBUTE( x ) __has_cpp_attribute( x )
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#else
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#define KI_HAS_CPP_ATTRIBUTE( x ) 0
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#endif
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/**
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* The KI_FALLTHROUGH macro is to be used when switch statement cases should purposely
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* fallthrough from one to the next. It must be followed by a ";".
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*
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* Sample code:
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* switch( a )
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* {
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* case 1:
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* // Some code
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* KI_FALLTHROUGH;
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*
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* case 2:
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* // More code
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* break;
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* }
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*/
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#if __cplusplus >= 201703L
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// C++ 17 includes this macro on all compilers
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#define KI_FALLTHROUGH [[fallthrough]]
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#elif KI_HAS_CPP_ATTRIBUTE( clang::fallthrough )
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// Clang provides this attribute to silence the "-Wimplicit-fallthrough" warning
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#define KI_FALLTHROUGH [[clang::fallthrough]]
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#elif KI_HAS_CPP_ATTRIBUTE( gnu::fallthrough )
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// GNU-specific C++ attribute to silencing the warning
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#define KI_FALLTHROUGH [[gnu::fallthrough]]
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#elif defined( __GNUC__ ) && __GNUC__ >= 7
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// GCC 7+ includes the "-Wimplicit-fallthrough" warning, and this attribute to silence it
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#define KI_FALLTHROUGH __attribute__ ((fallthrough))
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#else
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// In every other case, don't do anything
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#define KI_FALLTHROUGH ( ( void ) 0 )
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#endif
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/**
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* Convert a wxString to a UTF8 encoded C string for all wxWidgets build modes.
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*
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* wxstring is a wxString, not a wxT() or _(). The scope of the return value
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* is very limited and volatile, but can be used with printf() style functions well.
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*
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* @note Trying to convert it to a function is tricky because of the type of the
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* parameter!
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*/
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#define TO_UTF8( wxstring ) ( (const char*) (wxstring).utf8_str() )
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/**
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* Stringifies the given parameter by placing in quotes.
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*
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* @param cstring STRING (no spaces)
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* @return "STRING"
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*/
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#define TO_STR2(x) #x
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#define TO_STR(x) TO_STR2(x)
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/**
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* Convert a UTF8 encoded C string to a wxString for all wxWidgets build modes.
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*/
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static inline wxString FROM_UTF8( const char* cstring )
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{
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wxString line = wxString::FromUTF8( cstring );
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if( line.IsEmpty() ) // happens when cstring is not a valid UTF8 sequence
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line = wxConvCurrent->cMB2WC( cstring ); // try to use locale conversion
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return line;
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}
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#define UNIMPLEMENTED_FOR( type ) \
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wxFAIL_MSG( wxString::Format( "%s: unimplemented for %s", __FUNCTION__, type ) )
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#endif // MACROS_H
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