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This is an older version of Boost and was released in 2022. The current version is 1.89.0.
A constant used to select a value constructor overload.
Defined in header <boost/json/kind.hpp>
constexpr string_kind_t string_kind;
The library provides this constant to allow efficient construction of a
value
containing an empty string.
storage_ptr sp; value jv( string_kind, sp ); // sp is an optional parameter
Convenience header <boost/json.hpp>