std::error_category| Member functions |
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error_category::operator==error_category::operator!=error_category::operator<error_category::operator<=> (until C++20)(until C++20)(C++20) |
bool operator==(const error_category& rhs)constnoexcept; | (1) | (since C++11) |
bool operator!=(const error_category& rhs)constnoexcept; | (2) | (since C++11)
(until C++20) |
bool operator<(const error_category& rhs)constnoexcept; | (3) | (since C++11)
(until C++20) |
| (4) | (since C++20) |
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Compares to another error category.
1) Checks whether*this andrhs refer to the same object.
2) Checks whether*this andrhs 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).
The<,<=,>,>=, and!= operators aresynthesized fromoperator<=> andoperator== respectively. | (since C++20) |
[edit]Parameters
| rhs | - | specifies theerror_category to compare |
[edit]Return value
1)true if*this andrhs refer to the same object,false otherwise.
2)true if*this andrhs do not refer to the same object,false otherwise.
3)true if*this is less thanrhs as defined by the order ofthis and&rhs.
4)std::strong_order::less if*this is less thanrhs as defined by the order ofthis and&rhs, otherwisestd::strong_order::greater ifrhs is less than*this in the order, otherwisestd::strong_order::equal.
