57 lines
1.2 KiB
C++
57 lines
1.2 KiB
C++
//===----------------------------------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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// <complex>
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// template<Arithmetic T>
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// T
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// norm(T x);
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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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void
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test(T x, typename std::enable_if<std::is_integral<T>::value>::type* = 0)
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{
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static_assert((std::is_same<decltype(std::norm(x)), double>::value), "");
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assert(std::norm(x) == norm(std::complex<double>(static_cast<double>(x), 0)));
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}
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template <class T>
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void
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test(T x, typename std::enable_if<!std::is_integral<T>::value>::type* = 0)
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{
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static_assert((std::is_same<decltype(std::norm(x)), T>::value), "");
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assert(std::norm(x) == norm(std::complex<T>(x, 0)));
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}
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template <class T>
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void
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test()
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{
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test<T>(0);
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test<T>(1);
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test<T>(10);
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}
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int main(int, char**)
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{
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test<float>();
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test<double>();
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test<long double>();
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test<int>();
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test<unsigned>();
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test<long long>();
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return 0;
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}
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