std::error_code::error_code
error_code() noexcept; |
(1) | (since C++11) |
error_code( int ec, const error_category& ecat ) noexcept; |
(2) | (since C++11) |
template< class ErrorCodeEnum > error_code( ErrorCodeEnum e ) noexcept; |
(3) | (since C++11) |
Constructs new error code.
1) Constructs error code with default value. Equivalent to
error_code(0, std::system_category())
.
2) Constructs error code with
ec
as the platform-dependent error code and
ecat
as the corresponding
error category.
3) Constructs error code from an error code enum
e
. Equivalent to
make_error_code(e)
, where
make_error_code
is found by
argument-dependent lookup. This overload participates in overload resolution only if
std::is_error_code_enum<ErrorCodeEnum>::value
is
true
.
Parameters
ec | - | platform dependent error code to construct with |
ecat | - | error category corresponding to ec |
e | - | error code enum to construct with |
Notes
The ADL-found make_error_code
is intended to be used in the original proposal N2422, and used by all known implementations. However, the standard requires that only std::make_error_code
overloads are considered. This is LWG issue 3629.
See also
(C++11)
|
constructs an std::errc error code (function) |
(C++11)
|
constructs an iostream error code (function) |
(C++11)
|
constructs a future error code (function) |
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