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MathUtils.cpp
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1 /*
2  * Copyright (c) 2020 OmniSci, Inc.
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  * http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 namespace shared {
18 
19 bool isPowOfTwo(unsigned n) {
20  return (n & (n - 1)) == 0;
21 }
22 
23 unsigned getExpOfTwo(unsigned n) {
24  unsigned i = 0;
25 
26  while ((n = n >> 1)) {
27  ++i;
28  }
29 
30  return i;
31 }
32 
33 } // namespace shared
bool isPowOfTwo(unsigned n)
Definition: MathUtils.cpp:19
unsigned getExpOfTwo(unsigned n)
Definition: MathUtils.cpp:23
constexpr double n
Definition: Utm.h:39