dirc working

2 files changed, 3 insertions, 0 deletions

diff --git a/shared/util.c b/shared/util.c
index 55f3491..68503e8 100644
--- a/shared/util.c
+++ b/shared/util.c
@@ -4,3 +4,5 @@ unsigned long w2_util_exp_mov_avg(unsigned long current_avg, unsigned long new_m
 	return (unsigned long)((((double)(current_avg)) * ((double)(1.f - W2_EMA_WEIGHT))) +
 						   (((double)(new_meas)) * ((double)(W2_EMA_WEIGHT))));
 }
+
+int w2_sign(int n) { return (n > 0) - (n < 0); }
diff --git a/shared/util.h b/shared/util.h
index 465e043..230c3e4 100644
--- a/shared/util.h
+++ b/shared/util.h
@@ -7,3 +7,4 @@
 #define W2_RANGE(min, val, max) W2_MIN(max, W2_MAX(val, min))
 
 unsigned long w2_util_exp_mov_avg(unsigned long current_avg, unsigned long new_meas);
+int w2_sign(int n);