1==================== 2``noexcept`` Policy 3==================== 4 5Extended applications of ``noexcept`` 6------------------------------------------ 7 8As of version 13 libc++ may mark functions that do not throw (i.e., 9"Throws: Nothing") as ``noexcept``. This has two primary consequences: 10first, functions might not report precondition violations by throwing. 11Second, user-provided functions, such as custom predicates or custom 12traits, which throw might not be propagated up to the caller (unless 13specified otherwise by the Standard). 14