std::error_code:: operator bool
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Member functions | ||||
Modifiers | ||||
Observers | ||||
error_code::operator bool
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Non-member functions | ||||
(until C++20)
(until C++20)
(C++20)
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Helper classes | ||||
explicit
operator
bool
(
)
const
noexcept
;
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(since C++11) | |
Checks if the error code value is valid, i.e. non-zero.
Parameters
(none)
Return value
false if value ( ) == 0 , true otherwise.
Notes
Although this operator is often used as a convenient shorthand to check if any error was returned, as in if ( ec ) { /* handle error */ } , such use is not robust: some error codes, for example, HTTP status code 200 , may indicate success as well.