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Annotation of 43BSD/contrib/icon/book/16/eq.icn, revision 1.1

1.1     ! root        1: procedure eq(x,y)
        !             2:    local i
        !             3:    if x === y then return y    # succeed if identical
        !             4:    if type(x) == type(y) == "list" then {
        !             5:       if *x ~= *y then fail    # check sizes
        !             6:       every i := 1 to *x do    # check subtrees
        !             7:          if not eq(x[i],y[i]) then fail
        !             8:       return y
        !             9:      }
        !            10: end

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