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59 lines
1.2 KiB
C++
59 lines
1.2 KiB
C++
// (C) Copyright John Maddock 2001.
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// Use, modification and distribution are subject to the
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// Boost Software License, Version 1.0. (See accompanying file
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// LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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// See http://www.boost.org/libs/config for most recent version.
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// MACRO: BOOST_NO_DEPENDENT_NESTED_DERIVATIONS
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// TITLE: dependent nested template classes
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// DESCRIPTION: The compiler fails to compile
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// a nested class that has a dependent base class:
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// template<typename T>
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// struct foo : {
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// template<typename U>
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// struct bar : public U {};
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// };
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#ifndef BOOST_NESTED_TEMPLATE
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#define BOOST_NESTED_TEMPLATE template
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#endif
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namespace boost_no_dependent_nested_derivations{
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struct UDT1{};
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struct UDT2{};
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template<typename T>
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struct foo
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{
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template<typename U>
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struct bar : public foo<U>
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{};
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};
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template <class T>
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void foo_test(T)
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{
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typedef foo<T> foo_type;
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typedef typename foo_type::BOOST_NESTED_TEMPLATE bar<UDT2> bar_type;
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foo<T> ft;
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bar_type bt;
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(void) &bt;
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(void) &ft;
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}
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int test()
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{
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foo_test(UDT1());
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return 0;
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}
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}
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