# [−][src]Function std::intrinsics::variant_count

    pub extern "rust-intrinsic" fn variant_count<T>() -> usize

🔬 This is a nightly-only experimental API. (`core_intrinsics`)

intrinsics are unlikely to ever be stabilized, instead they should be used through stabilized interfaces in the rest of the standard library

Returns the number of variants of the type `T` cast to a `usize`; if `T` has no variants, returns 0. Uninhabited variants will be counted.

The to-be-stabilized version of this intrinsic is `variant_count`.