47 lines
1.9 KiB
C++
47 lines
1.9 KiB
C++
/*
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* Copyright (c) 2017-2019 Arm Limited.
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*
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* SPDX-License-Identifier: MIT
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to
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* deal in the Software without restriction, including without limitation the
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* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
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* sell copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#ifndef ARM_COMPUTE_ROUNDING_H
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#define ARM_COMPUTE_ROUNDING_H
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namespace arm_compute
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{
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/** Rounding method */
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enum class RoundingPolicy
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{
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TO_ZERO, /**< Truncates the least significant values that are lost in operations. */
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TO_NEAREST_UP, /**< Rounds to nearest value; half rounds away from zero */
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TO_NEAREST_EVEN, /**< Rounds to nearest value; half rounds to nearest even */
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};
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/** Return a rounded value of x. Rounding is done according to the rounding_policy.
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*
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* @param[in] x Float value to be rounded.
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* @param[in] rounding_policy Policy determining how rounding is done.
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*
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* @return Rounded value of the argument x.
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*/
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int round(float x, RoundingPolicy rounding_policy);
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}
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#endif /*ARM_COMPUTE_ROUNDING_H */
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