Re: [Boost-bugs] [Boost C++ Libraries] #8048: Boost 1.53 + GCC 4.6.3 __int128 undefined.

Subject: Re: [Boost-bugs] [Boost C++ Libraries] #8048: Boost 1.53 + GCC 4.6.3 __int128 undefined.
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2013-02-13 03:25:25

#8048: Boost 1.53 + GCC 4.6.3 __int128 undefined.
---------------------------------+------------------------------------------
  Reporter:  wchan212@…          |       Owner:             
      Type:  Bugs                |      Status:  new        
 Milestone:  To Be Determined    |   Component:  None       
   Version:  Boost 1.53.0        |    Severity:  Showstopper
Resolution:                      |    Keywords:             
---------------------------------+------------------------------------------

Comment (by anonymous):

 {{{
 wchan_at_speech07:/tmp$ cat test.cc
 #include <iostream>

 namespace boost{
 #  ifdef __GNUC__
    __extension__ typedef __int128 int128_type;
    __extension__ typedef unsigned __int128 uint128_type;
 #  else
    typedef __int128 int128_type;
    typedef unsigned __int128 uint128_type;
 #  endif
 };

 typedef __int128 Cint128_1;
 __extension__ typedef __int128 Cint128_2;

 int main(int argc, char* argv[]) {
 #ifdef __SIZEOF_INT128__
   std::cout << "__SIZEOF_INT128__ = " << __SIZEOF_INT128__ << std::endl;
   std::cout << "sizeof(Cint128_1) = " << sizeof(boost::int128_type) <<
 std::endl;
   std::cout << "sizeof(Cint128_2) = " << sizeof(boost::uint128_type) <<
 std::endl;
 #else
   std::cout << "Nope! no __SIZEOF_INT128__" << std::endl;
 #endif
 }

 wchan_at_speech07:/tmp$ g++ -o test.gcc test.cc && ./test.gcc
 __SIZEOF_INT128__ = 16
 sizeof(Cint128_1) = 16
 sizeof(Cint128_2) = 16
 wchan_at_speech07:/tmp$ nvcc -o test.nvcc test.cc && ./test.nvcc
 __SIZEOF_INT128__ = 16
 sizeof(Cint128_1) = 16
 sizeof(Cint128_2) = 16

 }}}

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/8048#comment:7>
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