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Function template visitor_ptr

boost::visitor_ptr — Returns a visitor object that adapts function pointers for use as a static visitor.

Synopsis

// In header: <boost/variant/visitor_ptr.hpp>


template<typename R, typename T> visitor_ptr_t<T,R> visitor_ptr(R (*)(T));

Description

Constructs and returns a visitor_ptr_t adaptor over the given function.

Returns:

Returns a visitor_ptr_t visitor object that, when applied, invokes the given function.

Throws:

Will not throw. (Note, however, that the returned visitor object may throw when applied.)

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