30 lines
942 B
C++
30 lines
942 B
C++
// RUN: %clang_cc1 -fsyntax-only -verify %s
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template<typename MetaFun, typename T>
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struct bind_metafun {
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typedef typename MetaFun::template apply<T> type;
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};
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struct add_pointer {
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template<typename T>
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struct apply {
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typedef T* type;
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};
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};
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int i;
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// FIXME: if we make the declarator below a pointer (e.g., with *ip),
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// the error message isn't so good because we don't get the handy
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// 'aka' telling us that we're dealing with an int**. Should we fix
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// getDesugaredType to dig through pointers and such?
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bind_metafun<add_pointer, int>::type::type ip = &i;
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bind_metafun<add_pointer, float>::type::type fp = &i; // expected-error{{cannot initialize a variable of type 'bind_metafun<add_pointer, float>::type::type' (aka 'float *') with an rvalue of type 'int *'}}
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template<typename T>
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struct extract_type_type {
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typedef typename T::type::type t;
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};
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double d;
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extract_type_type<bind_metafun<add_pointer, double> >::t dp = &d;
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