w_cabs.c

基于组件方式开发操作系统的OSKIT源代码

/*
 * cabs() wrapper for hypot().
 *
 * Written by J.T. Conklin, <[e-mail]>
 * Placed into the Public Domain, 1994.
 */

#include <math.h>

struct complex {
	double x;
	double y;
};

double
cabs(z)
	struct complex z;
{
	return hypot(z.x, z.y);
}

double
z_abs(z)
	struct complex *z;
{
	return hypot(z->x, z->y);
}