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isnothrowconstructible should be utilized when you want to ensure that an object can be constructed without throwing an exception. This is especially useful in situations where exceptions are not desirable or cannot be handled, such as in real-time systems or critical code paths. By using isnothrowconstructible, you can guarantee that the construction of an object will not throw exceptions and write code accordingly. It is also useful for determining the exception safety of a class, which is important for ensuring robust and reliable code.