# std::future_error::future_error

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< cpp‎ | thread‎ | future error

future_error( const future_error& other ) noexcept; | (1) | (since C++11)
explicit future_error( std::future_errc ec ); | (2) | (since C++17)

1) Copy constructor. Initializes the contents of the new `future_error` object with those of other. If *this and other both have dynamic type `std::future_error` then std::strcmp (what(), other.what()) == 0.
2) Constructs a new `future_error` object containing the error code std::make_error_code (ec).

### Parameters

other | - | another `future_error` object to copy
ec | - | error code

### Notes

There is no standard-compliant way for the user to construct a `future_error` other than copying from another `future_error` prior to C++17. C++11 and C++14 depict an exposition-only public constructor taking a std::error_code, and some implementations provide such a constructor.

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