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// config_dll.h - written and placed in public domain by Jeffrey Walton
// the bits that make up this source file are from the
// library's monolithic config.h.
/// \file config_dll.h
/// \brief Library configuration file
/// \details <tt>config_dll.h</tt> provides defines for shared objects and
/// dynamic libraries. Generally speaking the macros are used to export
/// classes and template classes from the Win32 dynamic link library.
/// When not building the Win32 dynamic link library they are mostly an extern
/// template declaration.
/// \details In practice they are a furball coughed up by a cat and then peed
/// on by a dog. They are awful to get just right because of inconsistent
/// compiler support for extern templates, manual instantiation and the FIPS DLL.
/// \details <tt>config.h</tt> was split into components in May 2019 to better
/// integrate with Autoconf and its feature tests. The splitting occurred so
/// users could continue to include <tt>config.h</tt> while allowing Autoconf
/// to write new <tt>config_asm.h</tt> and new <tt>config_cxx.h</tt> using
/// its feature tests.
/// \note You should include <tt>config.h</tt> rather than <tt>config_dll.h</tt>
/// directly.
/// \sa <A HREF="https://github.com/weidai11/cryptopp/issues/835">Issue 835,
/// Make config.h more autoconf friendly</A>,
/// <A HREF="https://www.cryptopp.com/wiki/Configure.sh">Configure.sh script</A>,
/// <A HREF="https://www.cryptopp.com/wiki/Visual_Studio">Visual Studio</A>,
/// and <A HREF="https://www.cryptopp.com/wiki/FIPS_DLL">FIPS DLL</A>
/// on the Crypto++ wiki
/// \since Crypto++ 8.3
#ifndef CRYPTOPP_CONFIG_DLL_H
#define CRYPTOPP_CONFIG_DLL_H
#include "config_os.h"
#if defined(CRYPTOPP_DOXYGEN_PROCESSING)
/// \brief Win32 define for dynamic link libraries
/// \details CRYPTOPP_IMPORTS is set in the Visual Studio project files.
/// When the macro is set, <tt>CRYPTOPP_DLL</tt> is defined to
/// <tt>__declspec(dllimport)</tt>.
/// \details This macro has no effect on Unix & Linux.
/// \sa <A HREF="https://www.cryptopp.com/wiki/Visual_Studio">Visual Studio</A>,
/// and <A HREF="https://www.cryptopp.com/wiki/FIPS_DLL">FIPS DLL</A>
/// on the Crypto++ wiki
#define CRYPTOPP_IMPORTS ...
/// \brief Win32 define for dynamic link libraries
/// \details CRYPTOPP_EXPORTS is set in the Visual Studio project files.
/// When the macro is set, <tt>CRYPTOPP_DLL</tt> is defined to
/// <tt>__declspec(dllexport)</tt>.
/// \details This macro has no effect on Unix & Linux.
/// \sa <A HREF="https://www.cryptopp.com/wiki/Visual_Studio">Visual Studio</A>,
/// and <A HREF="https://www.cryptopp.com/wiki/FIPS_DLL">FIPS DLL</A>
/// on the Crypto++ wiki
#define CRYPTOPP_EXPORTS ...
/// \brief Win32 define for dynamic link libraries
/// \details CRYPTOPP_IS_DLL is set in the Visual Studio project files.
/// \sa <A HREF="https://www.cryptopp.com/wiki/Visual_Studio">Visual Studio</A>,
/// and <A HREF="https://www.cryptopp.com/wiki/FIPS_DLL">FIPS DLL</A>
/// on the Crypto++ wiki
#define CRYPTOPP_IS_DLL
/// \brief Instantiate templates in a dynamic library
/// \details CRYPTOPP_DLL_TEMPLATE_CLASS decoration should be used
/// for classes intended to be exported from dynamic link libraries.
/// \details This macro is primarily used on Win32, but sees some
/// action on Unix & Linux due to the source file <tt>dll.cpp</tt>.
/// \sa <A HREF="https://www.cryptopp.com/wiki/Visual_Studio">Visual Studio</A>,
/// and <A HREF="https://www.cryptopp.com/wiki/FIPS_DLL">FIPS DLL</A>
/// on the Crypto++ wiki
#define CRYPTOPP_DLL_TEMPLATE_CLASS ...
/// \brief Instantiate templates in a dynamic library
/// \details CRYPTOPP_EXTERN_DLL_TEMPLATE_CLASS decoration should be used
/// for template classes intended to be exported from dynamic link libraries.
/// \details This macro is primarily used on Win32, but sees some
/// action on Unix & Linux due to the source file <tt>dll.cpp</tt>.
/// \sa <A HREF="https://www.cryptopp.com/wiki/Visual_Studio">Visual Studio</A>,
/// and <A HREF="https://www.cryptopp.com/wiki/FIPS_DLL">FIPS DLL</A>
/// on the Crypto++ wiki
#define CRYPTOPP_EXTERN_DLL_TEMPLATE_CLASS ...
/// \brief Instantiate templates in a dynamic library
/// \details CRYPTOPP_STATIC_TEMPLATE_CLASS decoration should be used
/// for template classes intended to be exported from dynamic link libraries.
/// \details This macro is primarily used on Win32, but sees some
/// action on Unix & Linux due to the source file <tt>dll.cpp</tt>.
/// \sa <A HREF="https://www.cryptopp.com/wiki/Visual_Studio">Visual Studio</A>,
/// and <A HREF="https://www.cryptopp.com/wiki/FIPS_DLL">FIPS DLL</A>
/// on the Crypto++ wiki
#define CRYPTOPP_STATIC_TEMPLATE_CLASS ...
/// \brief Instantiate templates in a dynamic library
/// \details CRYPTOPP_EXTERN_STATIC_TEMPLATE_CLASS decoration should be used
/// for template classes intended to be exported from dynamic link libraries.
/// \details This macro is primarily used on Win32, but sees some
/// action on Unix & Linux due to the source file <tt>dll.cpp</tt>.
/// \sa <A HREF="https://www.cryptopp.com/wiki/Visual_Studio">Visual Studio</A>,
/// and <A HREF="https://www.cryptopp.com/wiki/FIPS_DLL">FIPS DLL</A>
/// on the Crypto++ wiki
#define CRYPTOPP_EXTERN_STATIC_TEMPLATE_CLASS ...
/// \brief Override for internal linkage
/// \details CRYPTOPP_TABLE can be used to override internal linkage
/// on tables with the <tt>const</tt> qualifier. According to C++ rules
/// a declaration with <tt>const</tt> qualifier is internal linkage.
/// \note The name CRYPTOPP_TABLE was chosen because it is often used to
/// export a table, like AES or SHA constants. The name avoids collisions
/// with the DLL gear macros, like CRYPTOPP_EXPORTS and CRYPTOPP_EXTERN.
#define CRYPTOPP_TABLE extern
/// \brief Win32 calling convention
/// \details CRYPTOPP_API sets the calling convention on Win32.
/// On Win32 CRYPTOPP_API is <tt>__cedcl</tt>. On Unix & Linux
/// CRYPTOPP_API is defined to nothing.
/// \sa <A HREF="https://www.cryptopp.com/wiki/Visual_Studio">Visual Studio</A>
/// on the Crypto++ wiki
#define CRYPTOPP_API ...
#else // CRYPTOPP_DOXYGEN_PROCESSING
#if defined(CRYPTOPP_WIN32_AVAILABLE)
#if defined(CRYPTOPP_EXPORTS)
# define CRYPTOPP_IS_DLL
# define CRYPTOPP_DLL __declspec(dllexport)
#elif defined(CRYPTOPP_IMPORTS)
# define CRYPTOPP_IS_DLL
# define CRYPTOPP_DLL __declspec(dllimport)
#else
# define CRYPTOPP_DLL
#endif
// C++ makes const internal linkage
#define CRYPTOPP_TABLE extern
#define CRYPTOPP_API __cdecl
#else // not CRYPTOPP_WIN32_AVAILABLE
// C++ makes const internal linkage
#define CRYPTOPP_TABLE extern
#define CRYPTOPP_DLL
#define CRYPTOPP_API
#endif // CRYPTOPP_WIN32_AVAILABLE
#if defined(__MWERKS__)
# define CRYPTOPP_EXTERN_DLL_TEMPLATE_CLASS extern class CRYPTOPP_DLL
#elif defined(__BORLANDC__) || defined(__SUNPRO_CC)
# define CRYPTOPP_EXTERN_DLL_TEMPLATE_CLASS template class CRYPTOPP_DLL
#else
# define CRYPTOPP_EXTERN_DLL_TEMPLATE_CLASS extern template class CRYPTOPP_DLL
#endif
#if defined(CRYPTOPP_MANUALLY_INSTANTIATE_TEMPLATES) && !defined(CRYPTOPP_IMPORTS)
# define CRYPTOPP_DLL_TEMPLATE_CLASS template class CRYPTOPP_DLL
#else
# define CRYPTOPP_DLL_TEMPLATE_CLASS CRYPTOPP_EXTERN_DLL_TEMPLATE_CLASS
#endif
#if defined(__MWERKS__)
# define CRYPTOPP_EXTERN_STATIC_TEMPLATE_CLASS extern class
#elif defined(__BORLANDC__) || defined(__SUNPRO_CC)
# define CRYPTOPP_EXTERN_STATIC_TEMPLATE_CLASS template class
#else
# define CRYPTOPP_EXTERN_STATIC_TEMPLATE_CLASS extern template class
#endif
#if defined(CRYPTOPP_MANUALLY_INSTANTIATE_TEMPLATES) && !defined(CRYPTOPP_EXPORTS)
# define CRYPTOPP_STATIC_TEMPLATE_CLASS template class
#else
# define CRYPTOPP_STATIC_TEMPLATE_CLASS CRYPTOPP_EXTERN_STATIC_TEMPLATE_CLASS
#endif
#endif // CRYPTOPP_DOXYGEN_PROCESSING
#endif // CRYPTOPP_CONFIG_DLL_H
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