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std::error_code::operatorbool(3) | C++ Standard Libary | std::error_code::operatorbool(3) |
NAME¶
std::error_code::operatorbool - std::error_code::operatorbool
Synopsis¶
explicit operator bool() const noexcept; (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.
2024.06.10 | http://cppreference.com |