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From: "zackw at panix dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/50595] New: template overload resolution insufficiently sensitive to name dependency?
Date: Mon, 03 Oct 2011 04:14:00 -0000
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50595

             Bug #: 50595
           Summary: template overload resolution insufficiently sensitive
                    to name dependency?
    Classification: Unclassified
           Product: gcc
           Version: 4.6.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: zackw@panix.com


Created attachment 25401
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=25401
test case

Per http://stackoverflow.com/questions/7630806 the expected output of the
attached test case should be

f(char): 1
f(int):  T(1)
f(int):  t
f(char): 1
f(char): T(1)
f(char): t

since the second and third calls to f() in g() have arguments that are
template-dependent, so resolution of *those* function calls (but not the first
call) should be deferred until the point of instantiation (h()), at which time
both f(int) and f(char) are visible. What actually happens with g++ 4.6 is

f(char): 1
f(char): T(1)
f(char): t
f(char): 1
f(char): T(1)
f(char): t

I'm not 100% convinced by the argument above, but I am convinced enough to see
what y'all think.