std::error_code - cppreference.com

From cppreference.com

std::error_code represents a platform-dependent error code value. Each std::error_code object holds an error code value originating from the operating system or some low-level interface and a pointer to an object of type

std::error_category

, which corresponds to the said interface. The error code values are not required to be unique across different error categories.

Member functions

(constructor)

constructs an error code
(public member function)

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operator=

assigns another error code
(public member function)

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assign

assigns another error code
(public member function)

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Modifiers

clear

sets the error_code to value 0 in system_category
(public member function)

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Observers

value

obtains the value of the error_code
(public member function)

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category

obtains the error_category for this error_code
(public member function)

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default_error_condition

obtains the error_condition for this error_code
(public member function)

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message

obtains the explanatory string for this error_code
(public member function)

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operator bool

checks if the value is non-zero
(public member function)

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Non-member functions

Helper classes

See also