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