Thread: 'float' to 'double' conversion warning

Pls help me solve this guys....
the code is as below:

Code:

#include <stdio.h>
#include <math.h>

//#define A 90
//#define B 180
//#define C 360
#define PI 3.1416

void main(void)
{
               char choice;
               float voltage, current, totalPower, angle;

               printf("MENU");
               printf("\n=====");
               printf("\nFinding the total power for different angles:");
               printf("\nA. 90");
               printf("\nB. 180");
               printf("\nC. 360");
               printf("\nD. Others");
               printf("\nE. Quit");
               printf("\n\nYour choice: ");
               scanf("%c", &choice);

              
               switch(choice)
                          {
                                  case 'A' :angle = 90;
		           printf("Enter the voltage(V):");
		            scanf("%f", &voltage);
			printf("Enter the current(A):");
			scanf("%f", &current);
			totalPower =  voltage * current * cos((angle * PI) / 180);
			printf("Total power = %.2fw\n", totalPower);
									break;

                                  case 'B' :angle = 180;
									printf("Enter the voltage(V):");
			scanf("%f", &voltage);
			printf("Enter the current(A):");
			scanf("%f", &current);
			totalPower =  voltage * current * cos ((angle * PI) / 180);
			printf("Total power = %.2fw\n", totalPower); 
									break;
 
                             
                                  case 'C' :angle = 360;
			printf("Enter the voltage(V):");
                                            scanf("%f", &voltage);
                                            printf("Enter the current(A):");
                                            scanf("%f", &current);
                                            totalPower =  voltage * current * cos ((angle * PI) / 180);
                                            printf("Total power = %.2fw\n", totalPower); 
   
                                  case 'D' :printf("Enter the angle:");
			scanf("%f", &angle);
			printf("Enter the voltage(V):");
			scanf("%f", &voltage);
			printf("Enter the current:");
			scanf("%f", &current);
			totalPower = voltage * current * cos ((angle * PI) / 180);
			printf("Total power = %.2fw\n", totalPower);
									break;

                                 case 'E' :printf("Bye-Bye!\n");
			break;

                                 default :printf("Invalid Option!!\n");           //none of the above
                                          break;
                          } //end switch
                           
} //end main

Code tags added by Kermi3 - Disabled smiles too

First of all, before anyone help you, edit your post after reading this .

A float to double warning means that your program needs a cast somewhere. It's that simple. Or, if you want, you could ignore it. A float to double conversion can't really cause any harm.

For all the replies....thank u great people...
The solutions really meant a lot to me...
Ehmm...sorry for posting the message unpresentably...
It was my first message posting here...(' ,')