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std::is_error_condition_enum

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< cpp‎ | error‎ | error condition
Revision as of 19:42, 31 May 2013 by P12bot (Talk | contribs)

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

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_code and std::error_condition automatic conversions.

The following class of the standard library is an error condition enum: std::errc.

Contents

Inherited from std::integral_constant

Member constants

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

Member functions

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

Member types

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