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super(T::DataType)

Return the supertype of DataType T.

Examples

# Example 1: Find the supertype of a specific DataType
julia> supertype(Int64)
Signed

# Example 2: Find the supertype of a custom defined type
julia> struct MyType end
julia> supertype(MyType)
Any

# Example 3: Use in a function to access the supertype
julia> function print_supertype(T)
           println(supertype(T))
       end
julia> print_supertype(Float32)
AbstractFloat

Common mistake example:

julia> supertype(42)
ERROR: TypeError: in supertype, expected Type, got a value of type Int64

In this example, the supertype function expects a DataType as an argument, but an Int64 value is provided instead. Make sure to pass a DataType to the supertype function.

See Also

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