HErrnoException

:::info[Note] This is a point-in-time snapshot of the API documentation from January 2026. Going forward, we will not be maintaining a public copy of these references, and recommend users to refer to the built-in signature helpers available in the Hack LSP instead for complete and up-to-date information. :::

Class for exceptions reported via the C h_errno variable

Interface Synopsis

namespace HH\Lib\OS;

final class HErrnoException extends \Exception {...}

Public Methods

• ->__construct(HErrno $errno, string $message)
• ->getHErrno(): HErrno