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std::future_error::what

From cppreference.com
< cpp‎ | thread‎ | future error
virtual const char* what() const noexcept;
(since C++11)

Returns the explanatory string.

[edit] Parameters

(none)

[edit] Return value

Pointer to a null-terminated string with explanatory information.

[edit] See also

returns the error code
(public member function) [edit]