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Diffstat (limited to 'src/core/utils/helpers/bit_ops.h')
-rw-r--r-- | src/core/utils/helpers/bit_ops.h | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/src/core/utils/helpers/bit_ops.h b/src/core/utils/helpers/bit_ops.h new file mode 100644 index 0000000000..ef60214c9f --- /dev/null +++ b/src/core/utils/helpers/bit_ops.h @@ -0,0 +1,52 @@ +/* + * Copyright (c) 2018-2020 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_UTILS_HELPERS_BIT_OPS_H +#define ARM_COMPUTE_UTILS_HELPERS_BIT_OPS_H + +#include "support/Requires.h" + +#include <type_traits> + +namespace arm_compute +{ +namespace helpers +{ +namespace bit_ops +{ +/** Checks if the idx-th bit is set in an integral type + * + * @param[in] v Integral input + * @param[in] idx Index of the bit to check + * + * @return True if the idx-th bit is set else false + */ +template <typename T, REQUIRES_TA(std::is_integral<T>::value)> +bool is_bit_set(T v, unsigned int idx) +{ + return (v & 1 << idx) != 0; +} +} // namespace bit_ops +} // namespace helpers +} // namespace arm_compute +#endif /* ARM_COMPUTE_UTILS_HELPERS_BIT_OPS_H */ |