---
layout: stdlib-reference
---

# unpack\_u8u16

## Description

Unpack 4 unsigned 8-bit values into a vector of 16 bit integers.




## Signature 

<pre>
<a href="../types/vector/index.html" class="code_type">vector</a>&lt;uint16_t, 4&gt; <a href="unpack_u8u16.html">unpack_u8u16</a>(<span class="code_keyword">uint</span> <a href="unpack_u8u16.html#decl-packed" class="code_param">packed</a>);

</pre>

## Parameters

####  <a id="decl-packed"></a>packed  : uint

## Availability and Requirements

Defined for the following targets:

#### hlsl
Available in all stages.

#### glsl
Available in all stages.

#### cpp
Available in all stages.

#### cuda
Available in all stages.

#### metal
Available in all stages.

#### wgsl
Available in all stages.

#### spirv
Available in all stages.

#### llvm
Available in all stages.