id	summary	reporter	owner	description	type	status	milestone	component	version	severity	resolution	keywords	cc
3931	Build boost libraries under HP-UX with GNU C/C++	vovata@…	Vladimir Prus	"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"	Bugs	closed	Boost 1.43.0	program_options	Boost 1.42.0	Problem	wontfix