/* --------------------------------------------------------------------- 
// Figure 7.18:  Converting a float to a double.
// ---------------------------------------------------------------------
*/
#include <stdio.h>

void main()                               
{   
    float  f = 0.1;   /* Precision limited to about 7 decimal places. */ 
    double d = 0.1;   /* Precision limited to about 15 decimal places. */ 
    double x = f;     /* Converted float; same precision as original value. */     

    printf( "0.1 as a float  = %.17f\n", f ); 
    printf( "0.1 as a double = %.17f\n", d ); 
    printf( "0.1 converted from float to double = %.17f\n", x ); 
}