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Coding Standards
This is an older version of Boost and was released in 2022. The current version is 1.90.0.
boost::xpressive::op::const_cast_ — const_cast_<> is a PolymorphicFunctionObject for const-casting a parameter to a cv qualification.
// In header: <boost/xpressive/xpressive_fwd.hpp> template<typename T> struct const_cast_ { // public member functions template<typename Value> T operator()(Value const &) const; };