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typejoin

typejoin(T, S)

Compute a type that contains both T and S.

Examples

julia> typejoin(Int, Float64)
Float64

julia> typejoin(Vector{Int}, Vector{Float64})
Array{Float64,1}

The typejoin function in Julia computes a type that contains both T and S. It returns the most general type that encompasses both T and S. Here are a few examples to illustrate its usage:

1. Joining two primitive types:

   julia> typejoin(Int, Float64)
   Float64

   In this example, the typejoin function returns Float64 as the resulting type that can accommodate both Int and Float64.

2. Joining two array types:

   julia> typejoin(Vector{Int}, Vector{Float64})
   Array{Float64,1}

   Here, the typejoin function computes the type Array{Float64,1} as the most general type that can hold both Vector{Int} and Vector{Float64}.

3. Joining custom types:

   julia> struct Foo end
   julia> struct Bar end
   julia> typejoin(Foo, Bar)
   Union{Bar, Foo}

   In this example, the typejoin function returns Union{Bar, Foo} which is the most general type that includes both Foo and Bar.

Note that the resulting joined type may be a Union type if the types being joined are not directly related.

Please make sure to provide valid types T and S to avoid errors when using typejoin.

See Also

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