libstdc++/7744: streambuf::in_avail() always returns 0 (zero) for cin input stream

[paolo@gcc.gnu.org]

Synopsis: streambuf::in_avail() always returns 0 (zero) for cin input stream

State-Changed-From-To: analyzed->closed
State-Changed-By: paolo
State-Changed-When: Sun May 18 08:10:49 2003
State-Changed-Why:
    Fixed for 3.4.

http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=7744