8 Expressions [expr]

8.3 Unary expressions [expr.unary]

8.3.7 noexcept operator [expr.unary.noexcept]

1
#
The noexcept operator determines whether the evaluation of its operand, which is an unevaluated operand (Clause [expr]), can throw an exception ([except.throw]).
noexcept-expression:
	noexcept ( expression )
2
#
The result of the noexcept operator is a constant of type bool and is a prvalue.
3
#
The result of the noexcept operator is true unless the expression is potentially-throwing ([except.spec]).