fixed befunge

2022-04-18 22:27:39 +04:00 · 2022-04-18 22:27:39 +04:00 · 6bcc38d990
parent 91f249859f
commit 6bcc38d990
1 changed files with 3 additions and 0 deletions
--- a/libraries/esolangs/befunge.lua
+++ b/libraries/esolangs/befunge.lua
@ -97,6 +97,9 @@ local rw_head = function(field,commands)
  function RW_head:pop(value)
    local value = self.stack[#self.stack]
    table.remove(self.stack,#self.stack)
+    if not value then
+        return 0
+    end
    return value
  end
  function RW_head:walk()