# init(exactly:) Creates a new instance from the given value, if it can be represented exactly. ``` init?(exactly value: Source) where Source : BinaryFloatingPoint ``` ## Parameters `value` A floating-point value to be converted. ## Discussion If the given floating-point value cannot be represented exactly, the result is `nil`. --- Copyright © 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)