This struct defines a binary comparison functor applying operator== to two VALUE_TYPE objects. This class conforms to the C++11 standard specification of std::equal_to that does not require inheriting from std::binary_function. Note that this class is an empty POD type.
Declared in <bslstl_equalto.h>
template<class VALUE_TYPE = void>
struct equal_to;| Name | Description |
|---|---|
first_argument_type | This typedef is an alias to the first argument type of operator(). |
result_type | This typedef is an alias to the result type of operator(). |
second_argument_type | This typedef is an alias to the second argument type of operator(). |
| Name | Description |
|---|---|
operator() | Return true if the specified lhs compares equal to the specified rhs using the equality-comparison operator, lhs == rhs. |
| Name | Description |
|---|---|
equal_to<void> | This struct defines a binary comparison functor applying operator== to two objects of (possibly different) types. Note that this class is an empty POD type. |