C++/Data Type/Float

10.0 would be interpreted as floating point

<source lang="cpp">

1. include <iostream>

using namespace std; int main(void) {

  float firstOp = 10, result;
  int secondOp = 4;
  result = firstOp / secondOp;
  cout << firstOp << " / " << secondOp << " = " << result;
  return 0;

}

 </source>

cin to read float in C++

<source lang="cpp">

1. include <iostream>

using namespace std; int main() {

  double x, y;
  cout << "Enter two floating-point values: ";
  cin >> x ;
  cin >> y;
  cout << "The average of the two numbers is: " << (x + y)/2.0 << endl;
  return 0;

}

 </source>

Demonstrates the definition and use of references.

<source lang="cpp">

1. include <iostream>
2. include <string>

using namespace std; float x = 10.7F; int main() {

  float  &rx = x; 
  rx *= 2;
  cout << "   x = " <<  x << endl    
       << "  rx = " << rx << endl;   
  const float& cref = x;    
  cout << "cref = " <<  cref << endl; 
  const string str = "I am a constant string!";

  const string& text = str;    
  cout << text << endl;        
  return 0;

}

 </source>

Float value pointer and int value pointer

<source lang="cpp">

1. include <iostream>

using namespace std; int main() {

 float *f;
 int *i;
 f = new float;
 i = new int;
 if(!f || !i) {
   cout << "Allocation error\n";
   return 1;
 }
 *f = 10.101;
 *i = 100;
 cout << *f << " " << *i << "\n";
 delete f;
 delete i;
 return 0;

}

 </source>

Get the square and cube of a float type number

<source lang="cpp">

1. include <iostream>

using namespace std; float square_num(float num); float cube_num(float num); int main() {

 int choice;
 float answer;
 answer = square_num(1.2);
 answer = cube_num(1.2);
 cout << "Your answer is " << answer <<" \n";
 return 0;

} float square_num(float num) {

  float a;
  a = num * num;
  return a;

}

float cube_num(float num) {

 float a;
 a = num * num * num;
 return a;

}

 </source>

Make the result of integer division a float

<source lang="cpp">

1. include <iostream>

using namespace std; int main(void) {

  int firstOp = 10, secondOp = 4;
  float result = (float) firstOp / secondOp;
  cout << firstOp << " / " << secondOp << " = " << result;
  return 0;

}

 </source>

Return float type from function

<source lang="cpp">

1. include <iostream>

using namespace std; float cube_number(float num); float square_number(float num); int main() {

   float number;
   float number3;
   cout << "Please enter a number \n";
   cin >> number;
      
   if (number > 0 && number < 100)
   {
     number3 = cube_number(number);
     cout << number << "cubed is "<< number3;
   }else{
      number3 = square_number(number);
      cout << number << "squared is "<< number3;
   }
   
   if (number3 <10000 || number3 ==2){
      number3 = square_number(number3);
      cout << number3 << "squared is "<< number3;
   }
   return 0; 

} float square_number(float num) {

float answer;
answer = num * num;
return answer;

} float cube_number(float num) {

float answer;
answer = num * num * num;
return answer;

}

 </source>