Re: [Boost-bugs] [Boost C++ Libraries] #4109: xpressive compile error (MingW GCC 4.5)

Subject: Re: [Boost-bugs] [Boost C++ Libraries] #4109: xpressive compile error (MingW GCC 4.5)
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2010-04-18 07:45:29

#4109: xpressive compile error (MingW GCC 4.5)
----------------------------------------+-----------------------------------
 Reporter:  Duzy Chan <duzy@…>          |       Owner:  eric_niebler
     Type:  Bugs                        |      Status:  new         
Milestone:  Boost 1.43.0                |   Component:  xpressive   
  Version:  Boost 1.42.0                |    Severity:  Problem     
 Keywords:  is_pure                     |  
----------------------------------------+-----------------------------------

Comment(by anonymous):

 I can confirm the problem for g++-4.5 in Debian Sid as well as cross-
 compilers to sparc-sun-solaris2.8, i386-portbld-freebsd7.2 and x86_64
 -portbld-freebsd7.2 built from unpatched gcc-4.5.0 sources.

 This seems to be related to optional subexpressions; at least I can make
 it show up with that. The simplest case I can come up with is

 {{{
 #include <boost/xpressive/xpressive.hpp>

 int main() {
   using namespace boost::xpressive;

   // This compiles if rex is given as
   // sregex rex = _w;
   sregex rex = !_w;
 }
 }}}

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/4109#comment:3>
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