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Showing content from https://cplusplus.com/error_condition below:

class

<system_error>

std::error_condition

Error condition

Objects of this type hold a condition value associated with a category.

Objects of this type describe errors in a generic way so that they may be portable across different systems. This is in contrast with error_code objects, that may contain system-specific information.

Because error_condition objects can be compared with error_code objects directly by using relational operators, error_condition objects are generally used to check whether a particular error_code obtained from the system matches a specific error condition no matter the system.

The categories associated with the error_condition and the error_code define the equivalences between them.

Member functions

(constructor): Construct error_condition (public member function)

assign: Assign error condition (public member function)

operator=: Assign error condition (public member function)

clear: Clear error condition (public member function)

value: Error condition value (public member function)

category: Get category (public member function)

message: Get message (public member function)

operator bool: Convert to bool (public member function)

Non-member function overloads

relational operators (error_condition): Relational operators (function)

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