round.c

来自「<B>Digital的Unix操作系统VAX 4.2源码</B>」· C语言 代码 · 共 14 行

/* Copyright (c) 1979 Regents of the University of California */

static char sccsid[] = "@(#)ROUND.c 1.3 3/7/81";

long
ROUND(value)

	double	value;
{
	if (value >= 0.0)
		return (long)(value + 0.5);
	return (long)(value - 0.5);
}