18 Diagnostics library [diagnostics]

18.5 System error support [syserr]

18.5.5 Comparison functions [syserr.compare]

bool operator==(const error_code& lhs, const error_code& rhs) noexcept;

Returns:

lhs.category() == rhs.category() && lhs.value() == rhs.value()

🔗

bool operator==(const error_code& lhs, const error_condition& rhs) noexcept;

Returns:

lhs.category().equivalent(lhs.value(), rhs) || rhs.category().equivalent(lhs, rhs.value())

🔗

bool operator==(const error_condition& lhs, const error_code& rhs) noexcept;

Returns:

rhs.category().equivalent(rhs.value(), lhs) || lhs.category().equivalent(rhs, lhs.value())

🔗

bool operator==(const error_condition& lhs, const error_condition& rhs) noexcept;

Returns:

lhs.category() == rhs.category() && lhs.value() == rhs.value()

🔗

bool operator!=(const error_code& lhs, const error_code& rhs) noexcept;
bool operator!=(const error_code& lhs, const error_condition& rhs) noexcept;
bool operator!=(const error_condition& lhs, const error_code& rhs) noexcept;
bool operator!=(const error_condition& lhs, const error_condition& rhs) noexcept;

Returns: !(lhs == rhs).

🔗

bool operator<(const error_code& lhs, const error_code& rhs) noexcept;

Returns:

lhs.category() < rhs.category() ||
(lhs.category() == rhs.category() && lhs.value() < rhs.value())

🔗

bool operator<(const error_condition& lhs, const error_condition& rhs) noexcept;

Returns:

lhs.category() < rhs.category() ||
(lhs.category() == rhs.category() && lhs.value() < rhs.value())