Forward declares boost::hana::second.  
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| Namespaces | |
| boost::hana | |
| Namespace containing everything in the library. | |
| Variables | |
| constexpr auto | boost::hana::second | 
| Returns the second element of a pair.Note that if the Productactually stores the elements it contains,hana::secondis required to return a lvalue reference, a lvalue reference to const or a rvalue reference to the second element, where the type of reference must match that of the pair passed tosecond. If theProductdoes not store the elements it contains (i.e. it generates them on demand), this requirement is dropped.  More... | |
Forward declares boost::hana::second.