1 /*
2  * Copyright (C) 2010 The Android Open Source Project
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 #include "TradeFedNativeTestSampleLib.h"
18 
19 namespace TFNativeTestSampleLib {
20 
21 // Calculate fibonacci recursively, where 0 <= n <= 47
fibonacci_recursive(int n)22 unsigned long fibonacci_recursive(int n) {
23     if (n == 0) {
24         return 0;
25     }
26     else if (n == 1) {
27         return 1;
28     }
29     else {
30         return fibonacci_recursive(n-1) + fibonacci_recursive(n-2);
31     }
32 }
33 
34 // Calculate fibonacci iteratively, where 0 <= n <= 47
fibonacci_iterative(int n)35 unsigned long fibonacci_iterative(int n) {
36     unsigned long n1 = 1;
37     unsigned long n2 = 0;
38 
39     if (n == 0) {
40         return 0;
41     }
42     else if (n == 1) {
43         return 1;
44     }
45     for (int i=1; i<n; ++i) {
46         unsigned long current = n1 + n2;
47         n2 = n1;
48         n1 = current;
49     }
50     return n1;
51 }
52 
53 // Converts Celcius to Farenheit
c_to_f(double celcius)54 double c_to_f(double celcius) {
55     return ((celcius * 9) / 5) + 32.0;
56 }
57 
58 // Converts Farenheit to Celcius
f_to_c(double farenheit)59 double f_to_c(double farenheit) {
60     return ((farenheit - 32.0) * 5) / 9;
61 }
62 };
63