bool operator==( const error_category& rhs ) const; | (1) | (since C++11) |
bool operator!=( const error_category& rhs ) const; | (2) | (since C++11) |
bool operator<( const error_category& rhs ) const; | (3) | (since C++11) |
Compares to another error category.
1) Checks whether
*this
and rhs
refer to the same object. 2) Checks whether
*this
and rhs
do not refer to the same object. 3) Orders
*this
and rhs
by the order of this
and &rhs
. Equivalent to std::less<const error_category*>()(this, &rhs)
.Parameters
code | - | specifies the error code to compare |
condition | - | specifies the error condition to compare |
Return value
1)
true
if *this
and rhs
refer to the same object, false
otherwise. 2)
true
if *this
and rhs
do not refer to the same object, false
otherwise. 3)
true
if *this
is less than rhs
as defined by the order of this
and &rhs
.Exceptions
noexcept
specification: noexcept
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