[Bug libstdc++/34538] New: combination of sstream, invalid_argument and -std=c++0x breaks valid code

[rbuergel at web dot de]

#include <sstream>
#include <stdexcept>

int func()
{
        std::string s;
        throw std::invalid_argument( s );
}

g++-4.3.0 -std=c++0x test.cpp
test.cpp: In function 'int func()':
test.cpp:7: error: 'invalid_argument' cannot be used as a function


this code compiles only, if -std=c++0x is not given. If you just include
<string> instead of <sstream>, it also works with -std=c++0x, so it seems to be
related to the declarations in sstream, but i couldn't manage to dig deeper. I
tried to reduce the preprocessed source using delta/topformflat, but it kicked
out the declaration of invalid_argument giving me the same error.

Strangely using a smililar type like domain_error or out_of_range (they have
the same base-class and their only definition is the constructor) works too.

gcc version 4.3.0 20071213 (experimental) (GCC)


-- 
           Summary: combination of sstream, invalid_argument and -std=c++0x
                    breaks valid code
           Product: gcc
           Version: 4.3.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: libstdc++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: rbuergel at web dot de


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34538