1 /*
2 * Copyright (c) 2018-2021 Arm Limited.
3 *
4 * SPDX-License-Identifier: MIT
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to
8 * deal in the Software without restriction, including without limitation the
9 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
10 * sell copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in all
14 * copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
19 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
22 * SOFTWARE.
23 */
24 #ifndef ARM_COMPUTE_UTILS_HELPERS_BIT_OPS_H
25 #define ARM_COMPUTE_UTILS_HELPERS_BIT_OPS_H
26
27 #include "support/Requires.h"
28
29 #include <type_traits>
30
31 namespace arm_compute
32 {
33 namespace helpers
34 {
35 namespace bit_ops
36 {
37 /** Checks if the idx-th bit is set in an integral type
38 *
39 * @param[in] v Integral input
40 * @param[in] idx Index of the bit to check
41 *
42 * @return True if the idx-th bit is set else false
43 */
44 template <typename T, ARM_COMPUTE_REQUIRES_TA(std::is_integral<T>::value)>
is_bit_set(T v,unsigned int idx)45 bool is_bit_set(T v, unsigned int idx)
46 {
47 return (v & 1 << idx) != 0;
48 }
49 } // namespace bit_ops
50 } // namespace helpers
51 } // namespace arm_compute
52 #endif /* ARM_COMPUTE_UTILS_HELPERS_BIT_OPS_H */
53