Run block only if given (to match Readme behaviour)

testos77 · Sep 25, 2013 · b6a8798 · b6a8798
1 parent bd7edd8
commit b6a8798
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/lib/wiringpi/gpio.rb b/lib/wiringpi/gpio.rb
@@ -9,7 +9,7 @@ class GPIO
     def initialize(&block)
       Wiringpi2.wiringPiSetup
       @pins = Array.new
-      instance_eval &block
+      instance_eval &block if block_given?
     end
 
     def read_byte(starting_pin)