u-boot/lib/strmhz.c
Masahiro Yamada 4515992fc7 replace DIV_ROUND with DIV_ROUND_CLOSEST
The Linux-compatible macro DIV_ROUND_CLOSEST is a bit more flexible
and safer than DIV_ROUND.

For example,
  foo = DIV_ROUND_CLOSEST(x, y++)
works expectedly, but
  foo = DIV_ROUND(x, y++)
does not. (y is incremented twice.)

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
2014-11-20 11:28:25 -05:00

23 lines
412 B
C

/*
* (C) Copyright 2002-2006
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
char *strmhz (char *buf, unsigned long hz)
{
long l, n;
long m;
n = DIV_ROUND_CLOSEST(hz, 1000) / 1000L;
l = sprintf (buf, "%ld", n);
hz -= n * 1000000L;
m = DIV_ROUND_CLOSEST(hz, 1000L);
if (m != 0)
sprintf (buf + l, ".%03ld", m);
return (buf);
}