From 4ab7c9eb681b133dcfeee1ecdd318780e6df170e Mon Sep 17 00:00:00 2001
From: Gediminas Jakutis <gediminas@varciai.lt>
Date: Fri, 16 Feb 2018 13:41:21 +0200
Subject: tempmodule: not even close to overflowing, swtich 64b -> 32b.

---
 src/tempmodule/temperature.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

(limited to 'src/tempmodule/temperature.c')

diff --git a/src/tempmodule/temperature.c b/src/tempmodule/temperature.c
index 4f0a5f1..52fd7b7 100644
--- a/src/tempmodule/temperature.c
+++ b/src/tempmodule/temperature.c
@@ -16,7 +16,6 @@ struct temptuple {
  *
  * Rt = Ra * Vcc / Vt - Ra
  *
- * Using 64-bit arithmetic as 32-bit would overflow.
  * On WeMOS D1 Mini the A0 reads 3.2V as 1023; our Vcc is 3.31V
  * The correct value of the reference volume obtained by measuring
  * resistances with a multimeter, taking the ADC reading and applying
@@ -24,7 +23,7 @@ struct temptuple {
  * We shift the range by one to avoid division by zero.
  */
 
-int get_resistance(int64_t vt, int64_t ra)
+int get_resistance(int vt, int ra)
 {
 	++vt;
 	return ra * 1081 / vt - ra;
-- 
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