#include <stdio.h>

calc( void )	/* return type missing */
{		/* gives return type inconsistency */
                /* legal in C */
                /* Illegal in C++, won't compile */
    float cost = 8.0 * 5.35;
    return cost;
}

int main( void )
{
    float res1;
    res1 = calc();
    printf( "%f\n", res1 );
}