std::true_type if T satisfies CharSet.
<boost/url/grammar/charset.hpp>
template<class T>
using is_charset = /* implementation-defined */;
This metafunction determines if the type T meets these requirements of CharSet:
T is invocable with this equivalent function signature:
bool T::operator()( char ) const noexcept;
Use with enable_if on the return value:
template< class CharSet >
typename std::enable_if< is_charset::value >::type
func( CharSet const& cs );
| Name | Description |
|---|---|
| T | the type to check. |