diff options
| author |  Markus Schneider <markus@icet-clan.de> | 2017-08-25 16:47:08 +0200 |
|---|---|---|
| committer |  Hummer12007 <hilobakho@gmail.com> | 2017-08-26 04:21:06 +0300 |
| commit | 30c94ef6af70d34314bcebfd238363f519192bb5 (patch) | |
| tree | d52eaab170c37344285cbf1a29951987dfa8be11 | |
| parent | d0200a1576c5f0bf2cf29eb83432570441478daa (diff) | |
Fix rounding errors when using percentages
| -rw-r--r-- | Makefile | 2 | ||||
| -rw-r--r-- | brightnessctl.c | 3 |
2 files changed, 3 insertions, 2 deletions
@@ -1,6 +1,6 @@ VERSION = 0.2 DESTDIR ?= /usr/local -CFLAGS += -std=c99 -g -Wall -Wextra -DVERSION=\"${VERSION}\" -D_POSIX_C_SOURCE=200809L +CFLAGS += -std=c99 -g -Wall -Wextra -DVERSION=\"${VERSION}\" -D_POSIX_C_SOURCE=200809L -lm MODE ?= 4711 all: brightnessctl diff --git a/brightnessctl.c b/brightnessctl.c index f169608..71321c4 100644 --- a/brightnessctl.c +++ b/brightnessctl.c @@ -10,6 +10,7 @@ #include <stdarg.h> #include <stdlib.h> #include <string.h> +#include <math.h> static char *path = "/sys/class"; static char *classes[] = { "backlight", "leds", NULL }; @@ -292,7 +293,7 @@ int print_device(struct device *dev) { void apply_value(struct device *d, struct value *val) { long new, mod = val->v_type == ABSOLUTE ? - val->val : val->val / 100.0 * d->max_brightness; + val->val : ceil(val->val / 100.0 * d->max_brightness); if (val->d_type == DIRECT) { new = mod > d->max_brightness ? d->max_brightness : mod; goto apply; |