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# 64-Bit Unsigned Integer Vectors

Perform operations on vectors that contain unsigned 64-bit integer elements.

## Topics

### Vector Data Types

[`typealias simd_ulong1`](/documentation/simd/simd_ulong1)

A vector of one 64-bit unsigned integer element.

[`typealias simd_ulong2`](/documentation/simd/simd_ulong2)

A vector of two 64-bit unsigned integer elements.

[`typealias simd_ulong3`](/documentation/simd/simd_ulong3)

A vector of three 64-bit unsigned integer elements.

[`typealias simd_ulong4`](/documentation/simd/simd_ulong4)

A vector of four 64-bit unsigned integer elements.

[`typealias simd_ulong8`](/documentation/simd/simd_ulong8)

A vector of eight 64-bit unsigned integer elements.

### Packed Vector Data Types

[`typealias simd_packed_ulong2`](/documentation/simd/simd_packed_ulong2)

A packed vector of two 64-bit unsigned integer element.

[`typealias simd_packed_ulong4`](/documentation/simd/simd_packed_ulong4)

A packed vector of four 64-bit unsigned integer elements.

[`typealias simd_packed_ulong8`](/documentation/simd/simd_packed_ulong8)

A packed vector of eight 64-bit unsigned integer elements.


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