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Date: Sat, 25 Jul 2009 05:12:00 -0000
Subject: [Bug c++/40855]  New: undefined reference to `typeinfo for __int128'
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From: "john dot salmon at deshaw dot com" <gcc-bugzilla@gcc.gnu.org>
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When I try to take the typeid of an __int128_t or a __uint128_t, I get an
undefined reference at link time, e.g., with gcc/4.4.1:

salmonj@drdblogin6.en.desres$ cat typeid.cpp
#include <typeinfo>

const std::type_info& ti(typeid(int)); // no problem
const std::type_info& ti128(typeid(__int128_t));
const std::type_info& tu128(typeid(__uint128_t));

int main(){}

salmonj@drdblogin6.en.desres$ desres-cleanenv -m gcc/4.4.1-13/bin g++
-std=gnu++0x  typeid.cpp 
/tmp/ccKpEAiz.o:(.rodata+0x8): undefined reference to `typeinfo for __int128'
/tmp/ccKpEAiz.o:(.rodata+0x10): undefined reference to `typeinfo for unsigned
__int128'
collect2: ld returned 1 exit status
salmonj@drdblogin6.en.desres$


-- 
           Summary: undefined reference to `typeinfo for __int128'
           Product: gcc
           Version: unknown
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: john dot salmon at deshaw dot com


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40855