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MathUtils.h
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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 #ifndef OMNISCI_MATHUTILS_H
18 #define OMNISCI_MATHUTILS_H
19 
20 bool isPowOfTwo(unsigned n) {
21  return (n & (n - 1)) == 0;
22 }
23 
24 unsigned getExpOfTwo(unsigned n) {
25  unsigned i = 0;
26 
27  while ((n = n >> 1)) {
28  ++i;
29  }
30 
31  return i;
32 }
33 
34 #endif // OMNISCI_MATHUTILS_H
unsigned getExpOfTwo(unsigned n)
Definition: MathUtils.h:24
bool isPowOfTwo(unsigned n)
Definition: MathUtils.h:20