Forward declares boost::hana::at_key.
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Namespaces | |
| boost::hana | |
| Namespace containing everything in the library. | |
Variables | |
| constexpr auto | boost::hana::at_key |
Returns the value associated to the given key in a structure, or fail.Given a key and a Searchable structure, at_key returns the first value whose key is equal to the given key, and fails at compile-time if no such key exists. This requires the key to be compile-time Comparable, exactly like for find. at_key satisfies the following: More... | |
Forward declares boost::hana::at_key.