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From: leech@cassatt.cs.unc.edu
Newsgroups: comp.lang.c++
Subject: scoping problem with operator<< ?
Message-ID: <16322@thorin.cs.unc.edu>
Date: 26 Sep 90 22:49:08 GMT
Sender: news@thorin.cs.unc.edu
Reply-To: leech@cassatt.cs.unc.edu ()
Organization: University Of North Carolina, Chapel Hill
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    I've encountered a problem having to do with the scope at which an
output operator is declared, which appears to be a cfront bug.
Commentary would be appreciated.  This is using AT&T C++ 2.0 6/30/89,
or Sun C++ 2.0. The problem does not occur with g++ 1.36.1.

    Sample code is:

    #include <stream.h>

    class Anyptr {
    };

    #if !BUG
    extern ostream &operator<<(ostream &o, Anyptr &s);
    #endif

    main() {
    #if BUG
	extern ostream &operator<<(ostream &o, Anyptr &s);
    #endif

	Anyptr a;
	cout << a;
    }

    No errors occur if compiled without -DBUG; compiling with -DBUG
produces the error message:

"tst.c", line 16: error: bad operand types ostream_withassign Anyptr  for <<
--
    Jon Leech (leech@cs.unc.edu)    __@/
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