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Chapter - 16: Miscellaneous Features

Create an array of four function pointers. Each pointer should point to a different function. Each of these functions should receive two integers and return a float. Using a loop call each of these functions using the addresses present in the array.


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C
Sections
1
Exercises
#include<stdio.h>
#include<conio.h>

float one(int, int);
float two(int, int);
float three(int, int);
float four(int, int);

int main()
{
	float(*ptr[4])(int, int);
	float a, b, c, d;
	ptr[0] = one;
	ptr[1] = two;
	ptr[2] = three;
	ptr[3] = four;
	a = ptr[0](1, 2);
	b = ptr[1](2, 4);
	c = ptr[2](6, 3);
	d = ptr[3](22, 7);
	printf("a : %f\tb : %f\n", a, b);
	printf("c : %f\td : %f\n", c, d);
	_getch();
	return 0;
}
float one(int a, int b)
{
	float r;
	r = (float)a / b;

	return r;
}
float two(int x, int y)
{
	float ans;
	ans = (float)x / y;
	return ans;
}
float three(int i, int j)
{
	float a;
	a = (float)i / j;
	return a;
}
float four(int m, int n)
{
	return ((float)m / n);
}
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