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Function std.variant.variantArray

Returns an array of variants constructed from args.

This is by design. During construction the Variant needs static type information about the type being held, so as to store a pointer to function for fast retrieval.

Prototype

Variant[] variantArray(T...)(
  T args
);

Example

auto a = variantArray(1, 3.14, "Hi!");
assert(a[1] == 3.14);
auto b = Variant(a); // variant array as variant
assert(b[1] == 3.14);

Example

Code that needs functionality similar to the boxArray function in the std.boxer module can achieve it like this:

Variant[] fun(T...)(T args)
{
    // ...
    return variantArray(args);
}

Authors

Andrei Alexandrescu

License

Boost License 1.0.

Comments