Fix bug [ 1005248 ] new.code() not cleanly checking its arguments using the result of new.code() can still destroy the sun, but merely calling the function shouldn't any more. I also rewrote the existing tests of new.code() to use vastly less un-bogus arguments, and added tests for the previous insane behaviours.

/* hypot() replacement */

#include "pyconfig.h"
#include "pyport.h"

double hypot(double x, double y)
{
	double yx;

	x = fabs(x);
	y = fabs(y);
	if (x < y) {
		double temp = x;
		x = y;
		y = temp;
	}
	if (x == 0.)
		return 0.;
	else {
		yx = y/x;
		return x*sqrt(1.+yx*yx);
	}
}