std::future_error::what (3) - Linux Manuals
std::future_error::what: std::future_error::what
NAME
std::future_error::what - std::future_error::what
Synopsis
virtual const char* what() const noexcept; (since C++11)
Returns the explanatory string.
Parameters
(none)
Return value
Pointer to a null-terminated string with explanatory information.
See also
code (public member function)