22 Diagnostics library [diagnostics]

22.5 System error support [syserr]

22.5.5 Comparison functions [syserr.compare]

bool operator<(const error_code& lhs, const error_code& rhs) noexcept;
1
#
Returns: 
lhs.category() < rhs.category() ||
(lhs.category() == rhs.category() && lhs.value() < rhs.value());
bool operator<(const error_condition& lhs, const error_condition& rhs) noexcept;
2
#
Returns: lhs.category() < rhs.category() || lhs.category() == rhs.category() &&
lhs.value() < rhs.value().
bool operator==(const error_code& lhs, const error_code& rhs) noexcept;
3
#
Returns: lhs.category() == rhs.category() && lhs.value() == rhs.value().
bool operator==(const error_code& lhs, const error_condition& rhs) noexcept;
4
#
Returns: lhs.category().equivalent(lhs.value(), rhs) || rhs.category().equivalent(lhs, rhs.value()).
bool operator==(const error_condition& lhs, const error_code& rhs) noexcept;
5
#
Returns: rhs.category().equivalent(rhs.value(), lhs) || lhs.category().equivalent(rhs, lhs.value()).
bool operator==(const error_condition& lhs, const error_condition& rhs) noexcept;
6
#
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;
7
#
Returns: !(lhs == rhs).