ArrayFunctionPointer.c

#include<stdio.h>


int add (int num1,int num2){
 return num1+num2;
}

int subtract (int num1, int num2){
 return num1-num2;
}

/*int mul(int num1,int num2){
 return num1*num2;
}*/

typedef int (*fptrOperation) (int ,int);
 
fptrOperation operations[128] = {NULL};

void initializeOperationsArray(){
 operations['+'] = add;
 operations['-'] = subtract;
}

int evaluateArray(char opcode,int num1,int num2){
 fptrOperation operation;
 operation = operations[opcode];
 return operation(num1,num2);
}

void main(){
 initializeOperationsArray();
 printf("%d\n",evaluateArray('+',5,6));
 printf("%d\n",evaluateArray('-',5,6));
}