| 1 | #include <stdio.h> |
| 2 | //#include <stdbool.h> |
| 3 | |
| 4 | //FIXME: Comment the code !!! |
| 5 | |
| 6 | void displayMenuEntry(int num, const char* option) { |
| 7 | printf("%d - %s\n", num, option); |
| 8 | } |
| 9 | |
| 10 | void displayMenu() { |
| 11 | displayMenuEntry(1, "Addition"); |
| 12 | displayMenuEntry(2, "Soustraction"); |
| 13 | displayMenuEntry(3, "Multiplication"); |
| 14 | displayMenuEntry(4, "Division"); |
| 15 | displayMenuEntry(5, "Puissance"); |
| 16 | displayMenuEntry(6, "Quitter"); |
| 17 | } |
| 18 | |
| 19 | int promptValue(const char* invite) { |
| 20 | int value = 0; |
| 21 | puts(invite); |
| 22 | scanf("%d", &value); |
| 23 | return value; |
| 24 | } |
| 25 | |
| 26 | int promptOperation() { |
| 27 | displayMenu(); |
| 28 | return promptValue("Veuillez saisir un choix ?"); |
| 29 | } |
| 30 | |
| 31 | int doAddition(int val1, int val2) { |
| 32 | return val1 + val2; |
| 33 | } |
| 34 | |
| 35 | int doSubstraction(int val1, int val2) { |
| 36 | return val1 - val2; |
| 37 | } |
| 38 | |
| 39 | int doMultiplication(int val1, int val2) { |
| 40 | return val1 * val2; |
| 41 | } |
| 42 | |
| 43 | int doDivision(int val1, int val2) { |
| 44 | if (val2 == 0) { |
| 45 | printf("Division par zero !\n"); |
| 46 | // FIXME: I'm not very fond of this convention ... |
| 47 | return 0; |
| 48 | } else { |
| 49 | return val1 / val2; |
| 50 | } |
| 51 | } |
| 52 | |
| 53 | int doPuissance(int base, int expo) { |
| 54 | int power; |
| 55 | if ( expo == 1) { |
| 56 | power = base; |
| 57 | } else if ( expo % 2 == 0 ) { |
| 58 | power = doPuissance(base*base, expo/2); |
| 59 | } else { |
| 60 | power = base*doPuissance(base*base,(expo-1)/2); |
| 61 | } |
| 62 | return power; |
| 63 | } |
| 64 | |
| 65 | int main() { |
| 66 | int choice = promptOperation(); |
| 67 | printf("Choice: %d\n", choice); |
| 68 | |
| 69 | return 0; |
| 70 | } |