s := "x" ----> "x"
s ++:= "x" ----> 'x'
s ----> 'x'
s := "x" ----> "x"
s ++:= "xx" ----> 'x'
s ----> 'x'
s := "x" ----> "x"
s ++:= "X" ----> 'Xx'
s ----> 'Xx'
s := "x" ----> "x"
s ++:= "abc" ----> 'abcx'
s ----> 'abcx'
s := "x" ----> "x"
s --:= "x" ----> ''
s ----> ''
s := "x" ----> "x"
s --:= "xx" ----> ''
s ----> ''
s := "x" ----> "x"
s --:= "X" ----> 'x'
s ----> 'x'
s := "x" ----> "x"
s --:= "abc" ----> 'x'
s ----> 'x'
s := "x" ----> "x"
s **:= "x" ----> 'x'
s ----> 'x'
s := "x" ----> "x"
s **:= "xx" ----> 'x'
s ----> 'x'
s := "x" ----> "x"
s **:= "X" ----> ''
s ----> ''
s := "x" ----> "x"
s **:= "abc" ----> ''
s ----> ''
Run-time error 102 at line 45 in std45.icn
numeric expected
offending value: ""