52ef92b513
Original-commit: flang-compiler/f18@ea697295db Reviewed-on: https://github.com/flang-compiler/f18/pull/101 Tree-same-pre-rewrite: false
38 lines
1.2 KiB
C++
38 lines
1.2 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_TEST_EVALUATE_FP_TESTING_H_
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#define FORTRAN_TEST_EVALUATE_FP_TESTING_H_
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#include "../../lib/evaluate/common.h"
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#include <fenv.h>
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using Fortran::evaluate::RealFlags;
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using Fortran::evaluate::Rounding;
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class ScopedHostFloatingPointEnvironment {
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public:
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ScopedHostFloatingPointEnvironment(bool treatDenormalOperandsAsZero = false,
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bool flushDenormalResultsToZero = false);
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~ScopedHostFloatingPointEnvironment();
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void ClearFlags() const;
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static RealFlags CurrentFlags();
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static void SetRounding(Rounding rounding);
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private:
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fenv_t originalFenv_;
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fenv_t currentFenv_;
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};
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#endif // FORTRAN_TEST_EVALUATE_FP_TESTING_H_
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