This is my simple temperature conversion program(from F to C). I want to print o

Question

This is my simple temperature conversion program(from F to C).

I want to print out the numbers from 0 up to user input but I'm not sure how.(For example, if the fahr entered by the user was 80, then print value starting from 0 to 80).

I just need a little bit of idea here

#include <iostream>

using namespace std;

void convertFtoC(int, float & );

int main()
{

float cels;
   int fahr;
   int i;

cout << "Please enter a maximum temperature in Fahrenheit (F)";
   cin >> fahr;

    while(fahr < 0)
{
   cout << "Wrong Input ";
       cout << "Select new value: ";
       cin >> fahr;
   }

   cout << "Temperature in F   Temperature in C ";

   while(fahr <= 300)
   {
       convertFtoC(fahr, cels);
       cout.precision(5);
       cout.width(16);
       cout << fahr << " " << cels << endl;
       fahr = fahr + 5;
   }
   return 0;
}

void convertFtoC(int f, float &c) {

   c = ((f - 32.0) * (5.0/9.0));
}
  

Explanation / Answer

Highlighted part of the code has been changed

code:

#include <iostream>
using namespace std;
void convertFtoC(int, float * );
int main()
{
float cels;
int fahr;
int i=0;
cout << "Please enter a maximum temperature in Fahrenheit (F)"<<endl<<endl;
cin >> fahr;
while(fahr < 0)
{
cout << "Wrong Input ";
cout << "Select new value: ";
cin >> fahr;
}
cout << " Temperature in F Temperature in C ";

while(i<= fahr)
{
convertFtoC(i, &cels);
cout.precision(5);
cout.width(16);
cout << i << " " << cels << endl;
i++;
}
return 0;
}
void convertFtoC(int f, float *c) {
*c = ((f - 32.0) * (5.0/9.0));
}
  

output:

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