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

Responsible-Changed-From-To: bkoz->paolo
Responsible-Changed-By: paolo
Responsible-Changed-When: Sat Mar  8 14:17:09 2003
Responsible-Changed-Why:
    Benjamin, as you already know, I'm handling this one. Will
    post a patch real soon.

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