Re: c++/9333: [3.4 regression] new parser rejects creation of complex templated class temporaries

Re: c++/9333: [3.4 regression] new parser rejects creation of complex templated class temporaries

[Andrew Pollard]

The following reply was made to PR c++/9333; it has been noted by GNATS.

From: Andrew Pollard <Andrew.Pollard@brooks-pri.com>
To: andrew@andypo.net,  gcc-gnats@gcc.gnu.org,  gcc-bugs@gcc.gnu.org
Cc:  
Subject: Re: c++/9333: [3.4 regression] new parser rejects creation of complex
 templated class temporaries
Date: Wed, 15 Jan 2003 20:53:17 +0000

 Hi All,
 
   I suspect that this is related to (the fixed c++/9112) and
 c++/9285
 
 Andrew.
 

Re: c++/9333: [3.4 regression] new parser rejects creation of complex templated class temporaries

[mmitchel]

Synopsis: [3.4 regression] new parser rejects creation of complex templated class temporaries

State-Changed-From-To: analyzed->closed
State-Changed-By: mmitchel
State-Changed-When: Thu Jan 23 00:24:27 2003
State-Changed-Why:
    Already fixed in GCC 3.4.

http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=9333

Re: c++/9333: [3.4 regression] new parser rejects creation of complex templated class temporaries

[bangerth]

Synopsis: [3.4 regression] new parser rejects creation of complex templated class temporaries

State-Changed-From-To: open->analyzed
State-Changed-By: bangerth
State-Changed-When: Wed Jan 15 13:44:16 2003
State-Changed-Why:
    Indeed a regression. Works with present 3.3, but not with 3.4.

http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=9333

c++/9333: [3.4 regression] new parser rejects creation of complex templated class temporaries

[andrew]

>Number:         9333
>Category:       c++
>Synopsis:       [3.4 regression] new parser rejects creation of complex templated class temporaries
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    unassigned
>State:          open
>Class:          rejects-legal
>Submitter-Id:   net
>Arrival-Date:   Wed Jan 15 12:26:00 PST 2003
>Closed-Date:
>Last-Modified:
>Originator:     Andrew Pollard
>Release:        gcc-3.4-20030115
>Organization:
>Environment:
i686-pc-linux-gnu on a PIII system
>Description:
This is probably related to the (now fixed) c++/9112

I assume that this is a bug in the new parser....

temporary.cxx:
--------------
template<int foo>
struct A1 {
    A1(int, int, int) {}
};

template<int foo>
struct A2 {
    A2(int, int) {}
};

template<int foo>
struct B {
    int b;
    void bar1() { A1<foo>(b, b, b); }
    void bar2() { A2<foo>(b, b); }
    void bar3() { A1<foo> a1(b, b, b); }
};
--------------

% gcc34 -c temporary.cxx
temporary.cxx: In member function `void B<foo>::bar1()':
temporary.cxx:14: error: expected init-declarator
temporary.cxx:14: error: expected `,' or `;'

bar2() [ not as many constructor arguments ] and bar3() [using an explicit temporary] work.

bar1() also works in gcc-3.3/gcc-3.2 and gcc-3.4 prior to the new parser merge.

I also tried the online Comeau-C++ compiler and Intel icc-7.0 and they both accepted the code as well.
>How-To-Repeat:

>Fix:

>Release-Note:
>Audit-Trail:
>Unformatted: