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45 lines
931 B
C++
45 lines
931 B
C++
//===----------------------------------------------------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is dual licensed under the MIT and the University of Illinois Open
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// Source Licenses. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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// UNSUPPORTED: c++98, c++03, c++11
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// <propagate_const>
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// template <class T> struct hash<experimental::fundamentals_v2::propagate_const<T>>;
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#include <experimental/propagate_const>
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#include "propagate_const_helpers.h"
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#include <cassert>
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using std::experimental::propagate_const;
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namespace std {
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template <> struct hash<X>
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{
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typedef X first_argument_type;
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size_t operator()(const first_argument_type&) const
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{
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return 99;
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}
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};
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} // namespace std
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int main() {
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typedef propagate_const<X> P;
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P p(1);
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auto h = std::hash<P>();
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assert(h(p)==99);
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}
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