view Python/hypot.c @ 35679:172fcd9c1952 2.4

Backport: Fix SF bug #976608, Unhelpful error message when mtime of a module is -1
author Neal Norwitz <nnorwitz@gmail.com>
date Mon, 03 Oct 2005 04:50:55 +0000
parents 2dea40e40d9d
children 7bc4cc972b0b
line wrap: on
line source

/* 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);
	}
}