pointers to functions
- by DevAno1
I have two basic Cpp tasks, but still I have problems with them. First is to write functions mul1,div1,sub1,sum1, taking ints as arguments and returning ints. Then I need to create pointers ptrFun1 and ptrFun2 to functions mul1 and sum1, and print results of using them. Problem starts with defining those pointers. I thought I was doing it right, but devcpp gives me errors in compilation.
#include <iostream>
using namespace std;
int mul1(int a,int b)
{
return a * b;
}
int div1(int a,int b)
{
return a / b;
}
int sum1(int a,int b)
{
return a + b;
}
int sub1(int a,int b)
{
return a - b;
}
int main()
{
int a=1;
int b=5;
cout << mul1(a,b) << endl;
cout << div1(a,b) << endl;
cout << sum1(a,b) << endl;
cout << sub1(a,b) << endl;
int *funPtr1(int, int);
int *funPtr2(int, int);
funPtr1 = sum1;
funPtr2 = mul1;
cout << funPtr1(a,b) << endl;
cout << funPtr2(a,b) << endl;
system("PAUSE");
return 0;
}
38 assignment of function int* funPtr1(int, int)'
38 cannot convertint ()(int, int)' to `int*()(int, int)' in assignment
Task 2 is to create array of pointers to those functions named tabFunPtr. How to do that ?
