Im working on functions in C Programming. I’ve added a new function of “e” All the other functions will work, however my newly input of (void fdunits) will not properly calculate and printf.
Im working on functions in C Programming. I’ve added a new function of “e”
All the other functions will work, however my newly input of (void fdunits) will not properly calculate and printf.
What exactly am I missing?
Below is my code:
#include <stdio.h>
// Protocols for functions beneath main()
void printHelp();
void square(float);
void cube(float);
void parabola(float);
void shrink(float);
void fdunits(float);
int menu();
int main()
{
// While loop calls menu() function
// before test condition
while (menu() == 0);
printf (“… bye …\n”);
return 0;
} // end main
// Function to display menu options to user
int menu()
{
// Define variables only available in this function
char selection;
float flt1;
// Call printHelp() function to display selection options
printHelp ();
// Bring in selection from user
scanf (“%s”, &selection);
// Check value entered by user
// Call appropriate function when TRUE
if (selection == ‘a’)
{
// Instruct user to enter a float value
// Place that in the flt1 variable
printf(“Enter a float value: “);
scanf (“%f”, &flt1);
square(flt1);
}
else if (selection == ‘b’)
{
// Instruct user to enter a float value
// Place that in the flt1 variable
printf(“Enter a float value: “);
scanf (“%f”, &flt1);
cube(flt1);
}
else if (selection == ‘c’)
{
// Instruct user to enter a float value
// Place that in the flt1 variable
printf(“Enter a float value: “);
scanf (“%f”, &flt1);
parabola(flt1);
}
else if (selection == ‘d’)
{
//Instruct user to enter a float value
printf(“Enter a float value to shrink by 2:”);
scanf (“%f”, &flt1);
shrink(flt1);
}
else if (selection == ‘e’)
{
//Instruct user to enter a float value
printf(“Enter a float value of Kilometers per hour to be converted to Freedom Units:”);
scanf (“%f”, &flt1);
}
// Test for entered value of q from user
// If TRUE, return 1 to main() function
// Ending execution
else if (selection == ‘q’)
{
return 1;
}
// Display message to user if invalid entry
else
{
printf(“Entry must be a, b, c, d or e\n”);
}
return 0;
} // end function menu
void printHelp ()
{
printf (“\n”);
printf (“a: square(x) = x*x\n”);
printf (“b: cube(x) = x*x*x\n”);
printf (“c: parabola(x) = x^2 + 2*x + 7\n”);
printf (“d: shrink(x) = x/2.0\n”);
printf (“e: KPH to Freedom Units(MPH)(x)= x*0.62\n”);
printf (“q: quit\n”);
}
void square(float sqrflt)
{
float result = sqrflt*sqrflt;
printf (” a(%.2f) = %.2f^2 = %.2f\n”, sqrflt, sqrflt, result);
} // end function a
void cube(float cubeflt)
{
float result = cubeflt*cubeflt*cubeflt;
printf (” b(%.2f) = %.2f^3 = %.2f\n”, cubeflt, cubeflt, result);
} // end function b
void parabola(float paraflt)
{
float result = paraflt*paraflt + 2*paraflt + 7;
printf (” c(%.2f) = %.2f^2 + 2*%.2f + 7 = %.2f\n”, paraflt, paraflt, paraflt, result);
}// end fucntion c
void shrink(float xflt)
{
float result = xflt/2.0;
printf (” d(%.2f) = %.2f/2 = %.2f\n”, xflt, xflt,result);
}// end function d
void fdunits(float fdunitsflt)
{
float result = fdunitsflt*.62;
printf (” e(%.2f) = %.2f*0.62 = %.2f\n”, fdunitsflt, fdunitsflt,result);
}// end of function e
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