std::is_error_condition_enum (3) - Linux Man Pages

std::is_error_condition_enum: std::is_error_condition_enum

NAME

std::is_error_condition_enum - std::is_error_condition_enum

Synopsis


Defined in header <system_error>
template< class T > (since C++11)
struct is_error_condition_enum;


If T is an error condition enum, this template provides the member constant value equal true. For any other type, value is false.
This template may be specialized for a user-defined type to indicate that the type is eligible for std::error_condition automatic conversions.
The following class of the standard library is an error condition enum: std::errc.


Helper variable template


template< class T > (since C++17)
inline constexpr bool is_error_condition_enum_v = is_error_condition_enum<T>::value;


Inherited from std::integral_constant

Member constants


value true if T is an error condition enum, false otherwise
         (public static member constant)
[static]

Member functions


              converts the object to bool, returns value
operator bool (public member function)


operator() returns value
              (public member function)
(C++14)

Member types


Type Definition
value_type bool
type std::integral_constant<bool, value>

See also


is_error_code_enum identifies a class as an error_code enumeration
                   (class template)
(C++11)