From 148fea55749cb5054842993bf7c1288c98d8e405 Mon Sep 17 00:00:00 2001
From: rusefi <arro239+rusefi@gmail.com>
Date: Sun, 10 Dec 2017 10:19:05 -0500
Subject: [PATCH] better efiRound implementation

---
 firmware/util/efilib.cpp | 9 ++++++++-
 firmware/util/efilib.h   | 4 ++++
 2 files changed, 12 insertions(+), 1 deletion(-)

diff --git a/firmware/util/efilib.cpp b/firmware/util/efilib.cpp
index 82ff775bc9..8145a94b0e 100644
--- a/firmware/util/efilib.cpp
+++ b/firmware/util/efilib.cpp
@@ -21,10 +21,17 @@ int minI(int i1, int i2) {
 	return i1 < i2 ? i1 : i2;
 }
 
-float efiRound(float value, float precision) {
+/*
+float efiFloat(float value, float precision) {
 	int a = (int) (value / precision);
 	return a * precision;
 }
+*/
+
+float efiRound(float value, float precision) {
+	float a = rintf (value / precision);
+	return a * precision;
+}
 
 float absF(float value) {
 	return value > 0 ? value : -value;
diff --git a/firmware/util/efilib.h b/firmware/util/efilib.h
index 38951a63f7..de8223f4ac 100644
--- a/firmware/util/efilib.h
+++ b/firmware/util/efilib.h
@@ -51,6 +51,10 @@ int atoi(const char *string);
   
 int absI(int32_t value);
 float absF(float value);
+/**
+ * Rounds value to specified precision.
+ * @param precision some pow of 10 value - for example, 100 for two digit precision
+ */
 float efiRound(float value, float precision);
 int maxI(int i1, int i2);
 int minI(int i1, int i2);