Cleanup narrowing warning in pin_is_protected

2017-11-24 22:15:56 -06:00
parent 34eaaab5fb
commit 5f9592a523
3 changed files with 10 additions and 13 deletions
--- a/Marlin/src/HAL/HAL_LPC1768/pinmapping.cpp
+++ b/Marlin/src/HAL/HAL_LPC1768/pinmapping.cpp
@@ -27,8 +27,8 @@
 #include "../../gcode/parser.h"

 // Get the digital pin for an analog index
-pin_t analogInputToDigitalPin(const uint8_t p) {
-  return (p < COUNT(adc_pin_table) ? adc_pin_table[p] : P_NC);
+pin_t analogInputToDigitalPin(const int8_t p) {
+  return (WITHIN(p, 0, NUM_ANALOG_INPUTS) ? adc_pin_table[p] : P_NC);
 }

 // Return the index of a pin number