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Task/Jump-anywhere/FreeBASIC/jump-anywhere.freebasic

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+' FB 1.05.0 Win64
+
+' compiled with -lang fb (the default) and -e switches
+
+Sub MySub()
+  Goto localLabel
+  Dim a As Integer = 10  '' compiler warning that this variable definition is being skipped
+  localLabel:
+  Print "localLabel reached"
+  Print "a = "; a  '' prints garbage as 'a' is uninitialized
+End Sub
+
+Sub MySub2()
+  On Error Goto handler
+  Open "zzz.zz" For Input As #1 '' this file doesn't exist!
+  On Error Goto 0 '' turns off error handling
+  End
+
+  handler:
+  Dim e As Integer = Err '' cache error number before printing message
+  Print "Error number"; e; " occurred - file not found"
+End Sub
+
+Sub MySub3()
+  Dim b As Integer = 2
+  On b Goto label1, label2 '' jumps to label2
+
+  label1:
+  Print "Label1 reached"
+  Return '' premature return from Sub
+
+  label2:
+  Print "Label2 reached"
+End Sub
+
+Sub MySub4()
+  Dim c As Integer = 3
+  If c = 3 Goto localLabel2 '' better to use If ... Then Goto ... in new code
+  Print "This won't be seen"
+  localLabel2:
+  Print "localLabel2 reached"
+End Sub
+
+MySub
+MySub2
+MySub3
+MySub4
+Print
+Print "Pres any key to quit"
+Print