f7e7cb349b
Original-commit: flang-compiler/f18@aa7f55e15f Reviewed-on: https://github.com/flang-compiler/f18/pull/217
99 lines
3.3 KiB
C++
99 lines
3.3 KiB
C++
// Copyright (c) 2018, NVIDIA CORPORATION. All rights reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#ifndef FORTRAN_EVALUATE_COMPLEX_H_
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#define FORTRAN_EVALUATE_COMPLEX_H_
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#include "real.h"
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#include <string>
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namespace Fortran::evaluate::value {
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template<typename REAL_TYPE> class Complex {
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public:
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using Part = REAL_TYPE;
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static constexpr int bits{2 * Part::bits};
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constexpr Complex() {} // (+0.0, +0.0)
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constexpr Complex(const Complex &) = default;
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constexpr Complex(const Part &r, const Part &i) : re_{r}, im_{i} {}
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explicit constexpr Complex(const Part &r) : re_{r} {}
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constexpr Complex &operator=(const Complex &) = default;
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constexpr Complex &operator=(Complex &&) = default;
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constexpr const Part &REAL() const { return re_; }
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constexpr const Part &AIMAG() const { return im_; }
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constexpr Complex CONJG() const { return {re_, im_.Negate()}; }
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constexpr Complex Negate() const { return {re_.Negate(), im_.Negate()}; }
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constexpr bool Equals(const Complex &that) const {
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return re_.Compare(that.re_) == Relation::Equal &&
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im_.Compare(that.im_) == Relation::Equal;
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}
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constexpr bool IsZero() const { return re_.IsZero() || im_.IsZero(); }
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constexpr bool IsInfinite() const {
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return re_.IsInfinite() || im_.IsInfinite();
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}
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constexpr bool IsNotANumber() const {
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return re_.IsNotANumber() || im_.IsNotANumber();
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}
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constexpr bool IsSignalingNaN() const {
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return re_.IsSignalingNaN() || im_.IsSignalingNaN();
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}
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template<typename INT>
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static ValueWithRealFlags<Complex> FromInteger(
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const INT &n, Rounding rounding = defaultRounding) {
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ValueWithRealFlags<Complex> result;
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result.value.re_ =
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Part::FromInteger(n, rounding).AccumulateFlags(result.flags);
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return result;
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}
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ValueWithRealFlags<Complex> Add(
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const Complex &, Rounding rounding = defaultRounding) const;
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ValueWithRealFlags<Complex> Subtract(
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const Complex &, Rounding rounding = defaultRounding) const;
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ValueWithRealFlags<Complex> Multiply(
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const Complex &, Rounding rounding = defaultRounding) const;
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ValueWithRealFlags<Complex> Divide(
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const Complex &, Rounding rounding = defaultRounding) const;
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constexpr Complex FlushDenormalToZero() const {
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return {re_.FlushDenormalToZero(), im_.FlushDenormalToZero()};
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}
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static constexpr Complex NotANumber() {
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return {Part::NotANumber(), Part::NotANumber()};
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}
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std::string DumpHexadecimal() const;
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// TODO: (C)ABS once Real::HYPOT is done
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// TODO: unit testing
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private:
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Part re_, im_;
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};
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extern template class Complex<Real<Integer<16>, 11>>;
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extern template class Complex<Real<Integer<32>, 24>>;
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extern template class Complex<Real<Integer<64>, 53>>;
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extern template class Complex<Real<Integer<80>, 64, false>>;
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extern template class Complex<Real<Integer<128>, 112>>;
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}
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#endif // FORTRAN_EVALUATE_COMPLEX_H_
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