view Python/hypot.c @ 39459:ce11c6c1939d legacy-trunk

Verify verdat which is returned from malloc is not NULL. Ensure we don't pass NULL to free. Klocwork #306 (at least the first part, checking malloc)
author Neal Norwitz <nnorwitz@gmail.com>
date Sat, 12 Aug 2006 03:18:50 +0000
parents 2dea40e40d9d
children 7bc4cc972b0b
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/* 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);
	}
}