Forward declares boost::hana::contains and boost::hana::in.  
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| Namespaces | |
| boost::hana | |
| Namespace containing everything in the library. | |
| Variables | |
| constexpr auto | boost::hana::contains | 
| Returns whether the key occurs in the structure.Given a Searchablestructurexsand akey,containsreturns whether any of the keys of the structure is equal to the givenkey. If the structure is not finite, an equal key has to appear at a finite position in the structure for this method to finish. For convenience,containscan also be applied in infix notation.  More... | |
| constexpr auto | boost::hana::in = hana::infix(hana::flip(hana::contains)) | 
| Return whether the key occurs in the structure.Specifically, this is equivalent to contains, exceptintakes its arguments in reverse order. Likecontains,incan also be applied in infix notation for increased expressiveness. This function is not a method that can be overriden; it is just a convenience function provided with the concept.  More... | |
Forward declares boost::hana::contains and boost::hana::in.