WSJT-X/boost/libs/config/test/boost_no_using_template.ipp

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// (C) Copyright John Maddock 2001.
// Use, modification and distribution are subject to the
// Boost Software License, Version 1.0. (See accompanying file
// LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
// See http://www.boost.org/libs/config for most recent version.
// MACRO: BOOST_NO_USING_TEMPLATE
// TITLE: using template declarations
// DESCRIPTION: The compiler will not accept a using declaration
// that imports a class or function template
// into a named namespace. Probably Borland/MSVC6 specific.
template <class T>
int global_foo(T)
{
return 0;
}
template <class T, class U = void>
struct op
{
friend op<T,U> operator +(const op&, const op&)
{
return op();
};
};
namespace boost_no_using_template{
using ::global_foo;
using ::op;
int test()
{
boost_no_using_template::op<int, int> a;
boost_no_using_template::op<int, int> b;
a+b;
return boost_no_using_template::global_foo(0);
}
}