ACE/ace/iosfwd.h

   1 // -*- C++ -*-
   2
   3 //=============================================================================
   4 /**
   5  *  @file    iosfwd.h
   6  *
   7  *  @author Irfan Pyarali
   8  *
   9  *  This file contains the portability ugliness for the Standard C++
  10  *  Library.  As implementations of the "standard" emerge, this file
  11  *  will need to be updated.
  12  *
  13  *  This files deals with forward declaration for the stream
  14  *  classes.  Remember that since the new Standard C++ Library code
  15  *  for streams uses templates, simple forward declaration will not
  16  *  work.
  17  */
  18 //=============================================================================
  19
  20
  21 #ifndef ACE_IOSFWD_H
  22 #define ACE_IOSFWD_H
  23
  24 #include /**/ "ace/pre.h"
  25
  26 #include /**/ "ace/config-all.h"
  27
  28 #if !defined (ACE_LACKS_PRAGMA_ONCE)
  29 # pragma once
  30 #endif /* ACE_LACKS_PRAGMA_ONCE */
  31
  32 #if !defined (ACE_LACKS_IOSTREAM_TOTALLY)
  33
  34 #if defined (__APPLE_CC__)
  35 // Should this really be here?  dhinton
  36 // FUZZ: disable check_for_streams_include
  37 # include "ace/streams.h"
  38 #endif
  39
  40 #if defined (ACE_HAS_STANDARD_CPP_LIBRARY)  && \
  41     (ACE_HAS_STANDARD_CPP_LIBRARY != 0)
  42
  43 # if !defined (ACE_USES_OLD_IOSTREAMS)
  44 #   include /**/ <iosfwd>
  45 #define ACE_HAS_CPP98_IOSTREAMS 1
  46 # else
  47   // @note If these forward declarations don't work (e.g. aren't
  48   //       portable), we may have to include "ace/streams.h" as a last
  49   //       resort.  Doing so would defeat the purpose of this header,
  50   //       unfortunately.
  51   class ios;
  52   class streambuf;
  53   class istream;
  54   class ostream;
  55   class iostream;
  56   class filebuf;
  57   class ifstream;
  58   class ofstream;
  59   class fstream;
  60 # endif /* ! ACE_USES_OLD_IOSTREAMS */
  61
  62 # if defined (ACE_USES_STD_NAMESPACE_FOR_STDCPP_LIB) && \
  63              (ACE_USES_STD_NAMESPACE_FOR_STDCPP_LIB != 0)
  64
  65 #   if !defined (ACE_USES_OLD_IOSTREAMS)
  66       // Make these available in the global name space
  67       using std::ios;
  68       using std::streambuf;
  69       using std::istream;
  70       using std::ostream;
  71       using std::iostream;
  72       using std::filebuf;
  73       using std::ifstream;
  74       using std::ofstream;
  75       using std::fstream;
  76 #   endif /* ! ACE_USES_OLD_IOSTREAMS */
  77
  78 # endif /* ACE_USES_STD_NAMESPACE_FOR_STDCPP_LIB */
  79
  80 #else /* ! ACE_HAS_STANDARD_CPP_LIBRARY */
  81
  82   class ios;
  83   class streambuf;
  84   class istream;
  85   class ostream;
  86   class iostream;
  87   class filebuf;
  88   class ifstream;
  89   class ofstream;
  90   class fstream;
  91
  92 # endif /* ! ACE_HAS_STANDARD_CPP_LIBRARY */
  93
  94 #include /**/ "ace/post.h"
  95
  96 #endif /* ACE_LACKS_IOSTREAM_TOTALLY */
  97
  98 #endif /* ACE_IOSFWD_H */