w_cabs.c

来自「Newlib 嵌入式 C库 标准实现代码」· C语言 代码 · 共 21 行

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

#include "fdlibm.h"

struct complex {
	double x;
	double y;
};

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