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Diffstat (limited to 'arm_compute/core/Rounding.h')
-rw-r--r-- | arm_compute/core/Rounding.h | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/arm_compute/core/Rounding.h b/arm_compute/core/Rounding.h new file mode 100644 index 0000000000..f95058c567 --- /dev/null +++ b/arm_compute/core/Rounding.h @@ -0,0 +1,46 @@ +/* + * Copyright (c) 2017 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 significand 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__ */ |