[Bug c++/40689] New: [C++0x]: error with initializer list in N2672

[Bug c++/40689] New: [C++0x]: error with initializer list in N2672

[bernhard dot merkle at googlemail dot com]

Hi, 

I think there is a bug in g++ 4.4 concerning the implementation of initializer
list. N2672

The following program does not compiles, but it should be accepted by g++.

// /opt/gcc-4.4/bin/g++ --std=c++0x -Wall
int main() 
{

class X 
{
 public:
  X(): data {1,2,3,4,5} {}
 private:
  const short data[5];
};
const float * pData = new const float[4] { 1.5, 2.5, 3.5, 4.5 };

    return 0;
}

$ /opt/gcc-4.4/bin/g++ -v
Using built-in specs.
Target: i686-pc-cygwin
Configured with: ./configure --prefix=/opt/gcc-4.4
Thread model: single
gcc version 4.4.0 (GCC)

$ /opt/gcc-4.4/bin/g++ --std=c++0x -Wall g++4.4BugN2672.cpp
g++4.4BugN2672.cpp: In constructor 'main()::X::X()':
g++4.4BugN2672.cpp:8: error: conversion from '<brace-enclosed initializer
list>' to non-scalar type 'const short int [5]
' requested
g++4.4BugN2672.cpp: In function 'int main()':
g++4.4BugN2672.cpp:12: error: ISO C++ forbids initialization in array new
g++4.4BugN2672.cpp:12: warning: unused variable 'pData'


-- 
           Summary: [C++0x]: error with initializer list in N2672
           Product: gcc
           Version: 4.4.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: bernhard dot merkle at googlemail dot com


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40689

[Bug c++/40689] [C++0x]: error with initializer list in N2672

[bernhard dot merkle at googlemail dot com]

------- Comment #1 from bernhard dot merkle at googlemail dot com  2009-07-08 20:29 -------
Created an attachment (id=18164)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=18164&action=view)
program which should compile


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40689

[Bug c++/40689] [C++0x]: error with initializer list in N2672

[rguenth at gcc dot gnu dot org]

------- Comment #2 from rguenth at gcc dot gnu dot org  2009-07-08 20:38 -------
Before filing more bugs please verify the bugs exist on a recent version
of the development trunk for GCC 4.5.  C++0x is considered incomplete
technology preview only.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40689

[Bug c++/40689] [C++0x]: error with initializer list in N2672

[bernhard dot merkle at googlemail dot com]

------- Comment #3 from bernhard dot merkle at googlemail dot com  2009-07-08 20:56 -------
makes sense, thanks for the hint.

is there doc to which Nxxxx papers the 4.5 trunk relates ?
e.g. like http://gcc.gnu.org/projects/cxx0x.html


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40689

[Bug c++/40689] [C++0x]: error with initializer list in N2672

[rguenth at gcc dot gnu dot org]

------- Comment #4 from rguenth at gcc dot gnu dot org  2009-07-08 21:05 -------
I don't think so.  Likely nobody bothered to update that document recently.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40689

[Bug c++/40689] [C++0x]: error with initializer list in N2672

[paolo dot carlini at oracle dot com]

------- Comment #5 from paolo dot carlini at oracle dot com  2009-07-09 00:36 -------
And again...


-- 

paolo dot carlini at oracle dot com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |jason at gcc dot gnu dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40689

[Bug c++/40689] [C++0x]: error with initializer list in N2672

[jason at gcc dot gnu dot org]

------- Comment #6 from jason at gcc dot gnu dot org  2009-07-12 19:19 -------
Subject: Bug 40689

Author: jason
Date: Sun Jul 12 19:19:03 2009
New Revision: 149533

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=149533
Log:
        PR c++/40689
        * init.c (build_new_1): Handle initializer list as array initializer.
        (build_vec_init): Likewise.
        * typeck.c (cp_build_modify_expr): Likewise.
        * typeck2.c (process_init_constructor_array): Error rather than abort
        if too many initializers.

Added:
    trunk/gcc/testsuite/g++.dg/cpp0x/initlist20.C
    trunk/gcc/testsuite/g++.dg/cpp0x/initlist21.C
Modified:
    trunk/gcc/cp/ChangeLog
    trunk/gcc/cp/init.c
    trunk/gcc/cp/typeck.c
    trunk/gcc/cp/typeck2.c
    trunk/gcc/testsuite/ChangeLog


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40689

[Bug c++/40689] [C++0x]: error with initializer list in N2672

[jason at gcc dot gnu dot org]

------- Comment #7 from jason at gcc dot gnu dot org  2009-07-13 06:06 -------
Subject: Bug 40689

Author: jason
Date: Mon Jul 13 06:06:27 2009
New Revision: 149543

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=149543
Log:
        PR c++/36628
        * tree.c (rvalue): Use lvalue_or_rvalue_with_address_p.

        PR c++/37206
        * cp-tree.h (enum cp_lvalue_kind_flags): Add clk_rvalueref.
        * tree.c (lvalue_p_1): Return it.  Remove
        treat_class_rvalues_as_lvalues parm.
        (real_lvalue_p): Disallow pseudo-lvalues here.
        (lvalue_or_rvalue_with_address_p): New fn.
        * call.c (initialize_reference): Use it instead of real_lvalue_p.

        PR c++/40689
        * init.c (build_new_1): Handle initializer list as array initializer.
        (build_vec_init): Likewise.
        * typeck.c (cp_build_modify_expr): Likewise.
        * typeck2.c (process_init_constructor_array): Error rather than abort
        if too many initializers.


Added:
    branches/gcc-4_4-branch/gcc/testsuite/g++.dg/cpp0x/decltype17.C
      - copied unchanged from r149536,
trunk/gcc/testsuite/g++.dg/cpp0x/decltype17.C
    branches/gcc-4_4-branch/gcc/testsuite/g++.dg/cpp0x/initlist20.C
      - copied unchanged from r149534,
trunk/gcc/testsuite/g++.dg/cpp0x/initlist20.C
    branches/gcc-4_4-branch/gcc/testsuite/g++.dg/cpp0x/initlist21.C
      - copied unchanged from r149534,
trunk/gcc/testsuite/g++.dg/cpp0x/initlist21.C
    branches/gcc-4_4-branch/gcc/testsuite/g++.dg/cpp0x/rv10.C
      - copied unchanged from r149534, trunk/gcc/testsuite/g++.dg/cpp0x/rv10.C
Modified:
    branches/gcc-4_4-branch/gcc/cp/ChangeLog
    branches/gcc-4_4-branch/gcc/cp/ChangeLog-2007   (props changed)
    branches/gcc-4_4-branch/gcc/cp/ChangeLog-2008   (props changed)
    branches/gcc-4_4-branch/gcc/cp/call.c
    branches/gcc-4_4-branch/gcc/cp/cp-tree.h
    branches/gcc-4_4-branch/gcc/cp/init.c
    branches/gcc-4_4-branch/gcc/cp/tree.c
    branches/gcc-4_4-branch/gcc/cp/typeck.c
    branches/gcc-4_4-branch/gcc/cp/typeck2.c
    branches/gcc-4_4-branch/gcc/testsuite/ChangeLog
    branches/gcc-4_4-branch/gcc/testsuite/ChangeLog-2008   (props changed)
    branches/gcc-4_4-branch/gcc/testsuite/g++.dg/   (props changed)
    branches/gcc-4_4-branch/gcc/testsuite/g++.dg/cpp0x/decltype-38655.C  
(props changed)
    branches/gcc-4_4-branch/gcc/testsuite/gcc.dg/torture/pr36227.c   (props
changed)
    branches/gcc-4_4-branch/gcc/testsuite/gcc.target/x86_64/abi/callabi/  
(props changed)

Propchange: branches/gcc-4_4-branch/gcc/cp/ChangeLog-2007
            ('svn:mergeinfo' modified)

Propchange: branches/gcc-4_4-branch/gcc/cp/ChangeLog-2008
            ('svn:mergeinfo' modified)

Propchange: branches/gcc-4_4-branch/gcc/testsuite/ChangeLog-2008
            ('svn:mergeinfo' modified)

Propchange: branches/gcc-4_4-branch/gcc/testsuite/g++.dg/
            ('svn:mergeinfo' modified)

Propchange: branches/gcc-4_4-branch/gcc/testsuite/g++.dg/cpp0x/decltype-38655.C
            ('svn:mergeinfo' modified)

Propchange: branches/gcc-4_4-branch/gcc/testsuite/gcc.dg/torture/pr36227.c
            ('svn:mergeinfo' modified)

Propchange:
branches/gcc-4_4-branch/gcc/testsuite/gcc.target/x86_64/abi/callabi/
            ('svn:mergeinfo' modified)


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40689

[Bug c++/40689] [C++0x]: error with initializer list in N2672

[jason at gcc dot gnu dot org]

------- Comment #8 from jason at gcc dot gnu dot org  2009-07-14 05:18 -------
Fixed for 4.4.1.


-- 

jason at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|                            |FIXED
   Target Milestone|---                         |4.4.1


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40689