libstdc++/3036: pair constructor not updated per DR 265

[kenny.simpson@gs.com]

>Number:         3036
>Category:       libstdc++
>Synopsis:       pair constructor not updated per DR 265
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    unassigned
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Fri Jun 01 18:06:01 PDT 2001
>Closed-Date:
>Last-Modified:
>Originator:     kenny.simpson@gs.com
>Release:        20010528 snapshot
>Organization:
>Environment:
source
>Description:
The constructor for pair has been changed, see:
http://anubis.dkuug.dk/jtc1/sc22/wg21/docs/lwg-defects.html#265

in include/bits/stl_pair.h the old definition of
    pair() : first(_T1()), second(_T2()) {}
exists, but this should now be
    pair() : first(), second() {}
>How-To-Repeat:

>Fix:
remove _T1() and _T2() from pair's default constructor.
>Release-Note:
>Audit-Trail:
>Unformatted: