wehub-resource-sync
47 lines
1.2 KiB
C++
47 lines
1.2 KiB
C++
/*
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* SPDX-FileCopyrightText: Copyright (c) 1993-2024 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
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* SPDX-License-Identifier: Apache-2.0
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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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*/
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#pragma once
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#include <cstdint>
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namespace sample
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{
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//! Implements "Brain Floating Point": like an IEEE FP32,
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//! but the significand is only 7 bits instead of 23 bits.
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class BFloat16
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{
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public:
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BFloat16()
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: mRep(0)
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{
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}
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// Rounds to even if there is a tie.
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BFloat16(float x);
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operator float() const;
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private:
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//! Value stored in BFloat16 representation.
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uint16_t mRep;
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};
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BFloat16 operator+(BFloat16 x, BFloat16 y);
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} // namespace sample
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