Problem with 'float' data type

[MoMad]

Try changing your code to:

#include <stdio.h> 

int main() 
{ 
    int miles =0, totalMiles =0, gallons =0, totalGallons =0; 
    float overallAverage =0, temp =0;

    do {
        printf( "Enter the gallons used (-1 to end): " ); 
        scanf( "%d", &gallons); 
        printf( "Enter the miles driven: " ); 
        scanf( "%d", &miles ); 

        totalMiles += miles; 
        totalGallons += gallons; 

        if ( miles != 0 && gallons != 0 ) { 
            temp = ( float ) miles / gallons; 
            printf( "The miles / gallon for this tank was %.2f \n\n", temp); 
        } 
    } while( gallons != -1 );

    overallAverage = ( float ) totalMiles / totalGallons; 
    printf( "\nTHe overall average miles/gallon was %.2f", overallAverage ); 

    return 0; 
} 

Floats are Standard C/C++ datatypes so I dont see why a compiler will not support them. Thats a bunch of crap I tell you. Anyways, the only float bug I know of is:

float x = 3F, y = 3.0F;
printf("X/Y = %f\n", (float) x / y );
// Might not output 1 because of rounding errors 

-MoMad