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Alias `std.typecons.TypedefType`

Get the underlying type which a Typedef wraps. If T is not a Typedef it will alias itself to T.


						
				alias TypedefType(T)
				 = Arg;

Example

import std.conv : to;

alias MyInt = Typedef!int;
static assert(is(TypedefType!MyInt == int));

/// Instantiating with a non-Typedef will return that type
static assert(is(TypedefType!int == int));

string num = "5";

// extract the needed type
MyInt myInt = MyInt( num.to!(TypedefType!MyInt) );
writeln(myInt); // 5

// cast to the underlying type to get the value that's being wrapped
int x = cast(TypedefType!MyInt) myInt;

alias MyIntInit = Typedef!(int, 42);
static assert(is(TypedefType!MyIntInit == int));
static assert(MyIntInit() == 42);

Authors

Andrei Alexandrescu, Bartosz Milewski, Don Clugston, Shin Fujishiro, Kenji Hara

License

Boost License 1.0.