1+++
2title = "`bool has_failure() const noexcept`"
3description = "Returns true if there is either an error or an exception. Constexpr, never throws."
4categories = ["observers"]
5weight = 595
6+++
7
8Returns true if there is either an error or an exception. Constexpr where possible.
9
10*Requires*: Always available.
11
12*Complexity*: Constant time.
13
14*Guarantees*: Never throws an exception.
15