Versioned_Namespace.h
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00001 // -*- C++ -*- 00002 00003 //============================================================================= 00004 /** 00005 * @file Versioned_Namespace.h 00006 * 00007 * $Id: Versioned_Namespace.h 76185 2006-12-27 14:55:28Z johnnyw $ 00008 * 00009 * Versioned namespace support. 00010 * 00011 * Useful for preventing conflicts when using a third party library. 00012 * 00013 * @author Ossama Othman <ossama@dre.vanderbilt.edu> 00014 */ 00015 //============================================================================= 00016 00017 #ifndef TAO_VERSIONED_NAMESPACE_H 00018 #define TAO_VERSIONED_NAMESPACE_H 00019 00020 #if !defined (TAO_ORBCONF_H) && !defined (ACE_CONFIG_MACROS_H) 00021 # error This header is only meant to be included after "tao/orbconf.h". 00022 #endif /* !TAO_ORBCONF_H */ 00023 00024 00025 #if !defined (TAO_HAS_VERSIONED_NAMESPACE) \ 00026 && defined (ACE_HAS_VERSIONED_NAMESPACE) \ 00027 && ACE_HAS_VERSIONED_NAMESPACE == 1 00028 # define TAO_HAS_VERSIONED_NAMESPACE 1 00029 #endif /* !TAO_HAS_VERSIONED_NAMESPACE 00030 && ACE_HAS_VERSIONED_NAMESPACE == 1*/ 00031 00032 #if defined (TAO_HAS_VERSIONED_NAMESPACE) && TAO_HAS_VERSIONED_NAMESPACE == 1 00033 00034 # ifndef TAO_VERSIONED_NAMESPACE_NAME 00035 # include "tao/Version.h" 00036 00037 // Preprocessor symbols will not be expanded if they are 00038 // concatenated. Force the preprocessor to expand them during the 00039 // argument prescan by calling a macro that itself calls another that 00040 // performs the actual concatenation. 00041 # define TAO_MAKE_VERSIONED_NAMESPACE_NAME_IMPL(MAJOR,MINOR,BETA) TAO_ ## MAJOR ## _ ## MINOR ## _ ## BETA 00042 # define TAO_MAKE_VERSIONED_NAMESPACE_NAME(MAJOR,MINOR,BETA) TAO_MAKE_VERSIONED_NAMESPACE_NAME_IMPL(MAJOR,MINOR,BETA) 00043 # define TAO_VERSIONED_NAMESPACE_NAME TAO_MAKE_VERSIONED_NAMESPACE_NAME(TAO_MAJOR_VERSION,TAO_MINOR_VERSION,TAO_BETA_VERSION) 00044 # endif /* !TAO_VERSIONED_NAMESPACE_NAME */ 00045 00046 # define TAO_BEGIN_VERSIONED_NAMESPACE_DECL namespace TAO_VERSIONED_NAMESPACE_NAME { 00047 # define TAO_END_VERSIONED_NAMESPACE_DECL } \ 00048 using namespace TAO_VERSIONED_NAMESPACE_NAME; 00049 00050 #else 00051 00052 # define TAO_VERSIONED_NAMESPACE_NAME 00053 # define TAO_BEGIN_VERSIONED_NAMESPACE_DECL 00054 # define TAO_END_VERSIONED_NAMESPACE_DECL 00055 00056 #endif /* TAO_HAS_VERSIONED_NAMESPACE */ 00057 00058 #endif /* !TAO_VERSIONED_NAMESPACE_H */
