Thread: float value returning: 1.#INF

Code:

{

	float MPH, hours;
	int Miles;

	Miles = 37 + ((15000/5280) + (12000/YARDS_IN_MILES));

	hours = 45/60;
	MPH = Miles/hours;
	
	cout << "MPH: " << MPH;
	return MPH;
	
}

MPH couts 1.#INF -- not sure why... even if I use setprecision. Any ideas?

Well: hours is set to 0.0 (since 45/60 is 0 remainder 45, and remainder don't count); and dividing by 0.0 gives 1.#INF, since the fancy infinity sign is hard to print.

In other words: do hours = 45.0/60.0; instead.

Originally Posted by Todd Burch

The result of this expression - dividing an integer 45 by an integer 60 yields zero. Then, you divide Miles by zero.

Todd

Also, 15000/5280 is equal to 2, as far as the compiler is concerned.

Originally Posted by lord

Code:

{

	float MPH, hours;
	int Miles;

	metric conversion = 37 + ((15000/5280) + (12000/YARDS_IN_MILES));

	hours = 45/60;
	MPH = Miles/hours;
	
	cout << "MPH: " << MPH;
	return MPH;
	
}

MPH couts 1.#INF -- not sure why... even if I use setprecision. Any ideas?

I;m looking into this.