# Type Alias mask64x16

Source

    pub type mask64x16 = Mask<i64, $num_elements>;

🔬This is a nightly-only experimental API. (`portable_simd` #86656)
Expand description

A SIMD mask with 16 elements for vectors with 64-bit element types.

The layout of this type is unspecified, and may change between platforms and/or Rust versions, and code should not assume that it is equivalent to `[i64; 16]`.

## Aliased Type§

    pub struct mask64x16(/* private fields */);