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flightgear/compiler.h

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/**************************************************************************
* compiler.h -- C++ Compiler Portability Macros
*
* 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, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
* $Id$
* (Log is kept at end of this file)
**************************************************************************/
#ifndef _COMPILER_H
#define _COMPILER_H
// What this file does.
// (1) Defines macros for some STL includes which may be affected
// by file name length limitations.
// (2) Defines macros for some features not supported by all C++ compilers.
// (3) Defines 'explicit' as a null macro if the compiler doesn't support
// the explicit keyword.
// (4) Defines 'typename' as a null macro if the compiler doesn't support
// the typename keyword.
// (5) Defines bool, true and false if the compiler doesn't do so.
// (6) Defines FG_EXPLICIT_FUNCTION_TMPL_ARGS if the compiler
// supports calling a function template by providing its template
// arguments explicitly.
// (7) Defines FG_NEED_AUTO_PTR if STL doesn't provide auto_ptr<>.
// (8) Defines FG_NO_ARROW_OPERATOR if the compiler is unable
// to support operator->() for iterators.
// (9) Defines FG_USE_EXCEPTIONS if the compiler (in the current
// compilation mode) supports exceptions.
// (10) Define FG_NAMESPACES if the compiler supports namespaces.
// (11) Define FG_MATH_FN_IN_NAMESPACE_STD if C math functions are in <cmath>
// and std::
// (12) Define FG_HAVE_STD if ISO C++ Standard headers are supported.
// (13) Defines FG_CLASS_PARTIAL_SPECIALIZATION if the compiler
// supports partial specialization of class templates.
// (14) Defines FG_HAVE_STD_INCLUDES to use <iostream> instead of <iostream.h>
// (15) Defines FG_HAVE_STREAMBUF if <streambuf> of <streambuf.h> are present.
#ifdef __GNUC__
# if __GNUC__ == 2
# if __GNUC_MINOR__ < 8
// g++-2.7.x
# define STL_ALGORITHM <algorithm>
# define STL_FUNCTIONAL <functional>
# define STL_IOMANIP <iomanip.h>
# define STL_IOSTREAM <iostream.h>
# define STL_STDEXCEPT <stdexcept>
# define STL_STRING <string>
# define STL_STRSTREAM <strstream.h>
# define FG_NEED_AUTO_PTR
# define FG_NO_DEFAULT_TEMPLATE_ARGS
# define FG_INCOMPLETE_FUNCTIONAL
# define FG_NO_ARROW_OPERATOR
# elif __GNUC_MINOR__ >= 8
// g++-2.8.x and egcs-1.x
# define FG_EXPLICIT_FUNCTION_TMPL_ARGS
# define FG_NEED_AUTO_PTR
# define FG_MEMBER_TEMPLATES
# define FG_NAMESPACES
# define FG_HAVE_STD
# define FG_HAVE_STREAMBUF
# define FG_CLASS_PARTIAL_SPECIALIZATION
# define STL_ALGORITHM <algorithm>
# define STL_FUNCTIONAL <functional>
# define STL_IOMANIP <iomanip>
# define STL_IOSTREAM <iostream>
# define STL_STDEXCEPT <stdexcept>
# define STL_STRING <string>
# define STL_STRSTREAM <strstream>
# endif
# else
# error Time to upgrade. GNU compilers < 2.7 not supported
# endif
#endif
// Microsoft compilers.
#ifdef _MSC_VER
# if _MSC_VER < 1100
# define FG_NEED_EXPLICIT
# endif
#endif
#ifdef __BORLANDC__
# if defined(HAVE_SGI_STL_PORT)
// Use quotes around long file names to get around Borland's include hackery
# define STL_ALGORITHM "algorithm"
# define STL_FUNCTIONAL "functional"
# define FG_MATH_EXCEPTION_CLASH
# else
# define STL_ALGORITHM <algorithm>
# define STL_FUNCTIONAL <functional>
# define STL_IOMANIP <iomanip>
# define STL_IOSTREAM <iostream>
# define STL_STDEXCEPT <stdexcept>
# define STL_STRING <string>
# define STL_STRSTREAM <strstream>
# define FG_INCOMPLETE_FUNCTIONAL
# endif // HAVE_SGI_STL_PORT
# define FG_NO_DEFAULT_TEMPLATE_ARGS
# define FG_NAMESPACES
# define FG_HAVE_STD
#endif // __BORLANDC__
#ifdef FG_NEED_EXPLICIT
# define explicit
#endif
#ifdef FG_NEED_TYPENAME
# define typename
#endif
#ifdef FG_NEED_MUTABLE
# define mutable
#endif
#ifdef FG_NEED_BOOL
typedef int bool;
# define true 1
# define false 0
#endif
#ifdef FG_EXPLICIT_FUNCTION_TMPL_ARGS
# define FG_NULL_TMPL_ARGS <>
#else
# define FG_NULL_TMPL_ARGS
#endif
#ifdef FG_CLASS_PARTIAL_SPECIALIZATION
# define FG_TEMPLATE_NULL template<>
#else
# define FG_TEMPLATE_NULL
#endif
// FG_NO_NAMESPACES is a hook so that users can disable namespaces
// without having to edit library headers.
#if defined(FG_NAMESPACES) && !defined(FG_NO_NAMESPACES)
# define FG_NAMESPACE(X) namespace X {
# define FG_NAMESPACE_END }
# define FG_USING_NAMESPACE(X) using namespace X
# else
# define FG_NAMESPACE(X)
# define FG_NAMESPACE_END
# define FG_USING_NAMESPACE(X)
#endif
# ifdef FG_HAVE_STD
# define FG_USING_STD(X) using std::X
# else
# define FG_USING_STD(X)
# endif
// Additional <functional> implementation from SGI STL 3.11
// Adapter function objects: pointers to member functions
#ifdef FG_INCOMPLETE_FUNCTIONAL
template <class _Ret, class _Tp>
class const_mem_fun_ref_t
#ifndef __BORLANDC__
: public unary_function<_Tp,_Ret>
#endif // __BORLANDC__
{
public:
explicit const_mem_fun_ref_t(_Ret (_Tp::*__pf)() const) : _M_f(__pf) {}
_Ret operator()(const _Tp& __r) const { return (__r.*_M_f)(); }
private:
_Ret (_Tp::*_M_f)() const;
};
template <class _Ret, class _Tp>
inline const_mem_fun_ref_t<_Ret,_Tp> mem_fun_ref(_Ret (_Tp::*__f)() const)
{ return const_mem_fun_ref_t<_Ret,_Tp>(__f); }
#endif // FG_INCOMPLETE_FUNCTIONAL
#endif // _COMPILER_H
// $Log$
// Revision 1.3 1998/11/06 14:04:09 curt
// More portability improvements by Bernie Bright.
//
// Revision 1.2 1998/11/02 18:28:08 curt
// Portability updates from Bernie Bright
//
// Revision 1.1 1998/10/16 00:49:04 curt
// fg_stl_config.h -> compiler.h, fg_stl_config.h maintained for backwards
// compatibility.
//
// Revision 1.3 1998/09/29 02:00:16 curt
// Start of some borland c support
//
// Revision 1.2 1998/09/10 19:07:04 curt
// /Simulator/Objects/fragment.hxx
// Nested fgFACE inside fgFRAGMENT since its not used anywhere else.
//
// ./Simulator/Objects/material.cxx
// ./Simulator/Objects/material.hxx
// Made fgMATERIAL and fgMATERIAL_MGR bona fide classes with private
// data members - that should keep the rabble happy :)
//
// ./Simulator/Scenery/tilemgr.cxx
// In viewable() delay evaluation of eye[0] and eye[1] in until they're
// actually needed.
// Change to fgTileMgrRender() to call fgMATERIAL_MGR::render_fragments()
// method.
//
// ./Include/fg_stl_config.h
// ./Include/auto_ptr.hxx
// Added support for g++ 2.7.
// Further changes to other files are forthcoming.
//
// Brief summary of changes required for g++ 2.7.
// operator->() not supported by iterators: use (*i).x instead of i->x
// default template arguments not supported,
// <functional> doesn't have mem_fun_ref() needed by callbacks.
// some std include files have different names.
// template member functions not supported.
//
// Revision 1.1 1998/08/30 14:13:49 curt
// Initial revision. Contributed by Bernie Bright.
//
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