+++
title = "`bool has_exception() const noexcept`"
description = "Always returns false for `basic_result`. Constexpr, never throws."
categories = ["observers"]
weight = 593
+++

Always returns false for `basic_result`. Constexpr where possible.

*Requires*: Always available.

*Complexity*: Constant time.

*Guarantees*: Never throws an exception.
