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The function object comparing Values.
The default version handles Values which are Indexables, std::pair<T1, T2>, boost::tuple<...> and std::tuple<...> if STD tuples and variadic templates are supported. All members are compared from left to right, Geometries using boost::geometry::equals() function, other types using operator==.
            #include <boost/geometry/index/equal_to.hpp>
          
template<typename Value>struct equal_to{// ...};
| Parameter | Description | 
|---|---|
| 
                       | The type of objects which are compared by this function object. | 
| Modifier | Function | Description | 
|---|---|---|
| 
                       | Compare Values. | 
booloperator()(Value const &l,Value const &r)
const
| Type | Name | Description | 
|---|---|---|
| 
                         | 
                         | First value. | 
| 
                         | 
                         | Second value. | 
true if Values are equal.