a90c6dd460
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@224658 91177308-0d34-0410-b5e6-96231b3b80d8
105 lines
2.9 KiB
C++
105 lines
2.9 KiB
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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// <complex>
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// template<Arithmetic T, Arithmetic U>
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// complex<promote<T, U>::type>
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// pow(const T& x, const complex<U>& y);
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// template<Arithmetic T, Arithmetic U>
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// complex<promote<T, U>::type>
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// pow(const complex<T>& x, const U& y);
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// template<Arithmetic T, Arithmetic U>
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// complex<promote<T, U>::type>
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// pow(const complex<T>& x, const complex<U>& y);
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#include <complex>
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#include <type_traits>
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#include <cassert>
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#include "../cases.h"
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template <class T>
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double
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promote(T, typename std::enable_if<std::is_integral<T>::value>::type* = 0);
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float promote(float);
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double promote(double);
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long double promote(long double);
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template <class T, class U>
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void
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test(T x, const std::complex<U>& y)
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{
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typedef decltype(promote(x)+promote(real(y))) V;
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static_assert((std::is_same<decltype(std::pow(x, y)), std::complex<V> >::value), "");
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assert(std::pow(x, y) == pow(std::complex<V>(x, 0), std::complex<V>(y)));
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}
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template <class T, class U>
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void
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test(const std::complex<T>& x, U y)
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{
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typedef decltype(promote(real(x))+promote(y)) V;
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static_assert((std::is_same<decltype(std::pow(x, y)), std::complex<V> >::value), "");
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assert(std::pow(x, y) == pow(std::complex<V>(x), std::complex<V>(y, 0)));
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}
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template <class T, class U>
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void
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test(const std::complex<T>& x, const std::complex<U>& y)
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{
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typedef decltype(promote(real(x))+promote(real(y))) V;
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static_assert((std::is_same<decltype(std::pow(x, y)), std::complex<V> >::value), "");
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assert(std::pow(x, y) == pow(std::complex<V>(x), std::complex<V>(y)));
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}
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template <class T, class U>
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void
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test(typename std::enable_if<std::is_integral<T>::value>::type* = 0, typename std::enable_if<!std::is_integral<U>::value>::type* = 0)
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{
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test(T(3), std::complex<U>(4, 5));
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test(std::complex<U>(3, 4), T(5));
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}
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template <class T, class U>
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void
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test(typename std::enable_if<!std::is_integral<T>::value>::type* = 0, typename std::enable_if<!std::is_integral<U>::value>::type* = 0)
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{
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test(T(3), std::complex<U>(4, 5));
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test(std::complex<T>(3, 4), U(5));
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test(std::complex<T>(3, 4), std::complex<U>(5, 6));
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}
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int main()
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{
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test<int, float>();
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test<int, double>();
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test<int, long double>();
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test<unsigned, float>();
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test<unsigned, double>();
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test<unsigned, long double>();
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test<long long, float>();
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test<long long, double>();
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test<long long, long double>();
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test<float, double>();
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test<float, long double>();
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test<double, float>();
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test<double, long double>();
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test<long double, float>();
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test<long double, double>();
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}
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