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<system_error> functions

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generic_category

Represents the category for generic errors.

const error_category& generic_category() noexcept;

Remarks

The generic_category object is an implementation of error_category.

is_error_code_enum_v

template <class T>
    inline constexpr bool is_error_code_enum_v = is_error_code_enum<T>::value;

is_error_condition_enum_v

template <class T>
    inline constexpr bool is_error_condition_enum_v = is_error_condition_enum<T>::value;

make_error_code

Creates an error code object.

error_code make_error_code(std::errc error) noexcept;

Parameters

error
The std::errc enumeration value to store in the error code object.

Return Value

The error code object.

Remarks

make_error_condition

Creates an error condition object.

error_condition make_error_condition(std::errc error) noexcept;

Parameters

error
The std::errc enumeration value to store in the error code object.

Return Value

The error condition object.

Remarks

system_category

Represents the category for errors caused by low-level system overflows.

const error_category& system_category() noexcept;

Remarks

The system_category object is an implementation of error_category.