[Boost-bugs] [Boost C++ Libraries] #3931: Build boost libraries under HP-UX with GNU C/C++

Subject: [Boost-bugs] [Boost C++ Libraries] #3931: Build boost libraries under HP-UX with GNU C/C++
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2010-02-14 16:38:03

#3931: Build boost libraries under HP-UX with GNU C/C++
------------------------------+---------------------------------------------
 Reporter:  vovata@…          |       Owner:  vladimir_prus  
     Type:  Bugs              |      Status:  new            
Milestone:  Boost 1.43.0      |   Component:  program_options
  Version:  Boost 1.42.0      |    Severity:  Problem        
 Keywords:                    |  
------------------------------+---------------------------------------------
 I tried build boost, with program_options, under HP-UX (B.11.23 U ia64)
 with GNU C/C++ compiler version 4.3.1, using bjam. I fpund a problem with
 the define WCHAR_MAX in the system headers of HP-UX, it is defined there
 with type cast, and an error arrives in the build:[[BR]]

 In file included from libs/program_options/src/utf8_codecvt_facet.cpp:15:
 libs/program_options/src/../../detail/utf8_codecvt_facet.cpp:255:7: error:
 missing binary operator before token "("[[BR]]

 The problematic define is in the system wchar.h:[[BR]]
 #             if defined(_INCLUDE_STDC__SOURCE_199901)[[BR]]
 #               define WCHAR_MAX  UINT_MAX  /* max value of an unsigned
 integer */[[BR]]
 #               define WCHAR_MIN  0[[BR]]
 #             else[[BR]]
 '''#               define WCHAR_MAX  (wchar_t)UINT_MAX  /* max value of an
 unsigned integer */[[BR]]
 #               define WCHAR_MIN  (wchar_t)0'''[[BR]]
 #             endif[[BR]]

 I fixed the problem with a little modification of
 libs/detail/utf8_codecvt_facet.cpp, I replaced [[BR]]
 #if defined(_MSC_VER) && _MSC_VER <= 1310 // 7.1 or earlier[[BR]]
     return 2;[[BR]]
 #elif WCHAR_MAX > 0x10000[[BR]]

    if (word < 0x10000) {[[BR]]
         return 2;[[BR]]
     }[[BR]]
     if (word < 0x200000) {[[BR]]
         return 3;[[BR]]
     }[[BR]]
     if (word < 0x4000000) {[[BR]]
         return 4;[[BR]]
     }[[BR]]
     return 5;[[BR]]

 #else[[BR]]
     return 2;[[BR]]
 #endif[[BR]]

 with this one[[BR]]
 #if defined(_MSC_VER) && _MSC_VER <= 1310 // 7.1 or earlier[[BR]]
     return 2;[[BR]]
 #else[[BR]]
    if (WCHAR_MAX > 0x10000) {[[BR]]
      if (word < 0x10000) {[[BR]]
         return 2;[[BR]]
      }[[BR]]
      if (word < 0x200000) {[[BR]]
         return 3;[[BR]]
      }[[BR]]
      if (word < 0x4000000) {[[BR]]
         return 4;[[BR]]
      }[[BR]]
      return 5;[[BR]]
    } [[BR]]
    else { [[BR]]
       return 2;[[BR]]
    } [[BR]]
 #endif[[BR]]

 The comparision WCHAR_MAX > 0x10000 will be done on runtime, and not at
 compile time, but on runtime the type cast is ok.[[BR]]

 Regards,[[BR]]
 Vladimir Penev

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/3931>
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