[Bug c++/42567] New: internal compiler error: in type_unification_real, at cp/pt.c:13310

[Bug c++/42567] New: internal compiler error: in type_unification_real, at cp/pt.c:13310

[smm2rc at Virginia dot EDU]

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/*To start off, I apologize if this bug already was reported (I didn't find it
mentioned anywhere...). Also, what exactly is meant by 'host triplet', 'target
triplet', and 'build triplet'? (I just sort of guessed at them - I'm assuming
they're the host system and the target system and the system on which the
compiler was built...??) */

/* Simplified test case code (located in main.cpp): */

template<typename B>
class A {
public:
        template<typename C>
        void fn(C c) {
                auto&& key = *c; /* same bug results if 'auto&&' is replaced
with 'auto&' */
        }
};

int main(int argc, char* argv[]) {}

/* Errors produced:
main.cpp: In member function ‘void A<B>::fn(C)’:
main.cpp:6:17: internal compiler error: in type_unification_real, at
cp/pt.c:13310
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.
*/
/* The following is the command used to compile the code:
g++ -std=c++0x main.cpp
*/
/* System specs:
Ubuntu 9.10 32-bit, Intel P9500,
--> GCC 4.5.0 (built from source, revision 155485) <--
*/
/* Comments: Buh whuh? */


-- 
           Summary: internal compiler error: in type_unification_real, at
                    cp/pt.c:13310
           Product: gcc
           Version: unknown
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: smm2rc at Virginia dot EDU
 GCC build triplet: i686-pc-linux-gnu
  GCC host triplet: i686-pc-linux-gnu
GCC target triplet: i686-pc-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42567

[Bug c++/42567] internal compiler error: in type_unification_real, at cp/pt.c:13310

[smm2rc at Virginia dot EDU]

------- Comment #1 from smm2rc at Virginia dot EDU  2009-12-31 19:22 -------
Oh, and replacing the 'auto&& key = *b' line with 'auto&& key =
b.member_function()' results in a no-error compilation.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42567

[Bug c++/42567] [C++0x] internal compiler error: in type_unification_real, at cp/pt.c:13310

[paolo dot carlini at oracle dot com]

-- 

paolo dot carlini at oracle dot com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |jason at gcc dot gnu dot org
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|0                           |1
           Keywords|                            |ice-on-valid-code
   Last reconfirmed|0000-00-00 00:00:00         |2009-12-31 20:20:55
               date|                            |
            Summary|internal compiler error: in |[C++0x] internal compiler
                   |type_unification_real, at   |error: in
                   |cp/pt.c:13310               |type_unification_real, at
                   |                            |cp/pt.c:13310


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42567

[Bug c++/42567] [C++0x] ICE with auto in type_unification_real, at cp/pt.c:13310

[jason at gcc dot gnu dot org]

------- Comment #2 from jason at gcc dot gnu dot org  2010-01-04 17:53 -------
Subject: Bug 42567

Author: jason
Date: Mon Jan  4 17:53:29 2010
New Revision: 155627

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=155627
Log:
        PR c++/42567
        * semantics.c (describable_type): Remove decltype comment and
        semantics.

Added:
    trunk/gcc/testsuite/g++.dg/cpp0x/auto17.C
Modified:
    trunk/gcc/cp/ChangeLog
    trunk/gcc/cp/semantics.c
    trunk/gcc/testsuite/ChangeLog


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42567

[Bug c++/42567] [C++0x] ICE with auto in type_unification_real, at cp/pt.c:13310

[jason at gcc dot gnu dot org]

------- Comment #3 from jason at gcc dot gnu dot org  2010-01-04 17:56 -------
Fixed.


-- 

jason at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |RESOLVED
         Resolution|                            |FIXED


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42567

[Bug c++/42567] [C++0x] ICE with auto in type_unification_real, at cp/pt.c:13310

[jason at gcc dot gnu dot org]

-- 

jason at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|unassigned at gcc dot gnu   |jason at gcc dot gnu dot org
                   |dot org                     |
             Status|NEW                         |ASSIGNED
   Last reconfirmed|2009-12-31 20:20:55         |2010-01-04 17:56:04
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42567