libstdc++/22: g++ cannot compile std::ostream_iterator<std::pair<int, int> >

[cshihpin at dso dot org dot sg]

>Number:         22
>Category:       libstdc++
>Synopsis:       g++ cannot compile std::ostream_iterator<std::pair<int, int> >
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    unassigned
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Fri Jan 07 06:57:00 PST 2000
>Closed-Date:
>Last-Modified:
>Originator:     Richard Chan
>Release:        unknown-1.0
>Organization:
>Environment:
Linux RedHat 6.1, kernel 2.2.14
gcc-2.95.2/libgcc.a and libstdc++-2.90.7 compiled with -fhonor-std
and --enable-namespaces
>Description:
With -fhonor-std and --enable-namespaces g++ cannot compile
a operator<< function using ostream_iterator.

1. Define an overloaded function
std::ostream& operator<<(std::ostream&, const std::pair<int, int>&)

2. Try printing pairs - works!
std::pair<int, int> p(12,34);
std::cout << p; //this is OK; compiles and runs correctly

3. Try printing pair using std::ostream_iterator

std::ostream_iterator<pair<int, int> > out(std::cout, "\n");

*out = p; //this does not compile!! Compiler cannot find
      // operator<< function
      // library is built with --enable-namespaces
      // using -fhonor-std
>How-To-Repeat:
c++ -fhonor-std -c bugfile.cc
does not compile
>Fix:
No fix
>Release-Note:
>Audit-Trail:
>Unformatted:
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