---
title: "isTriviallyIdentical(to:)"
framework: swift
role: symbol
role_heading: Instance Method
path: "swift/contiguousarray/istriviallyidentical(to:)"
---

# isTriviallyIdentical(to:)

Returns a boolean value indicating whether this array is identical to other.

## Declaration

```swift
func isTriviallyIdentical(to other: ContiguousArray<Element>) -> Bool
```

## Discussion

Discussion Two array values are identical if there is no way to distinguish between them. For any values a, b, and c: a.isTriviallyIdentical(to: a) is always true. (Reflexivity) a.isTriviallyIdentical(to: b) implies b.isTriviallyIdentical(to: a). (Symmetry) If a.isTriviallyIdentical(to: b) and b.isTriviallyIdentical(to: c) are both true, then a.isTriviallyIdentical(to: c) is also true. (Transitivity) If a and b are Equatable, then a.isTriviallyIdentical(b) implies a == b a == b does not imply a.isTriviallyIdentical(b) Values produced by copying the same value, with no intervening mutations, will compare identical: let d = c print(c.isTriviallyIdentical(to: d)) // Prints true Comparing arrays this way includes comparing (normally) hidden implementation details such as the memory location of any underlying array storage object. Therefore, identical arrays are guaranteed to compare equal with ==, but not all equal arrays are considered identical. note: O(1)