Merge branch 'upstreamedge' into feature/acceleration-per-tick

[clinton/Smoothieware.git] / src / libs / Pin.cpp

diff --git a/src/libs/Pin.cpp b/src/libs/Pin.cpp
index d59fd17..a147111 100644 (file)
--- a/src/libs/Pin.cpp
+++ b/src/libs/Pin.cpp
@@ -16,6 +16,11 @@ Pin::Pin(){
 
 // Make a new pin object from a string
 Pin* Pin::from_string(std::string value){
+    if(value == "nc") {
+        this->valid= false;
+        return this; // optimize the nc case
+    }
+
     LPC_GPIO_TypeDef* gpios[5] ={LPC_GPIO0,LPC_GPIO1,LPC_GPIO2,LPC_GPIO3,LPC_GPIO4};
 
     // cs is the current position in the string