---
title: simd_long2
framework: simd
role: symbol
role_heading: Type Alias
path: simd/simd_long2
---

# simd_long2

A vector of two 64-bit signed integer elements.

## Declaration

```swift
typealias simd_long2 = SIMD2<simd_long1>
```

## Topics

### Functions to Create Two-Element Vectors From Other Vectors

- [simd_make_long2(_:)](simd/simd_make_long2(_:)-96bn.md)
- [simd_make_long2(_:)](simd/simd_make_long2(_:)-5ou8.md)
- [simd_make_long2(_:)](simd/simd_make_long2(_:)-2abd.md)
- [simd_make_long2(_:)](simd/simd_make_long2(_:)-9ozpw.md)

### Functions to Create Two-Element Vectors From Scalar Values

- [simd_make_long2(_:)](simd/simd_make_long2(_:)-698vu.md)
- [simd_make_long2(_:_:)](simd/simd_make_long2(_:_:).md)
- [simd_make_long2_undef(_:)](simd/simd_make_long2_undef(_:).md)

### Common Functions

- [simd_abs(_:)](simd/simd_abs(_:)-88ipu.md)
- [simd_clamp(_:_:_:)](simd/simd_clamp(_:_:_:)-4sik.md)
- [simd_equal(_:_:)](simd/simd_equal(_:_:)-2qcs1.md)

### Reduce Functions

- [simd_reduce_min(_:)](simd/simd_reduce_min(_:)-49gjw.md)
- [simd_reduce_max(_:)](simd/simd_reduce_max(_:)-4kq58.md)
- [simd_reduce_add(_:)](simd/simd_reduce_add(_:)-2qco6.md)

### Extrema Functions

- [simd_min(_:_:)](simd/simd_min(_:_:)-5lq3f.md)
- [simd_max(_:_:)](simd/simd_max(_:_:)-439j5.md)

### Logic and Bitwise Functions

- [simd_any(_:)](simd/simd_any(_:)-64pz3.md)
- [simd_all(_:)](simd/simd_all(_:)-1cyyp.md)
- [simd_bitselect(_:_:_:)](simd/simd_bitselect(_:_:_:)-8ffoo.md)

### Alternative Type Alias

- [vector_long2](simd/vector_long2.md)

## See Also

### Vector Data Types

- [simd_long1](simd/simd_long1.md)
- [simd_long3](simd/simd_long3.md)
- [simd_long4](simd/simd_long4.md)
- [simd_long8](simd/simd_long8.md)