visit

`visit`

Invoke a function object with the contents of a value.

Synopsis

Defined in header <boost/json/visit.hpp>.

template<
    class Visitor>
see below #endif
visit(
    Visitor&& v,
    value& jv); (1)

template<
    class Visitor>
see below #endif
visit(
    Visitor&& v,
    value const& jv); (2)

template<
    class Visitor>
see below #endif
visit(
    Visitor&& v,
    value&& jv); (3)

Description

Invokes v as if by std::forward<Visitor>(v)( X ), where X is a const (2) or mutable (1) lvalue reference, or an rvalue reference (3) to

the underlying stored value, if jv.kind() is not equal to json::kind::null; or
an object of type std::nullptr_t.

Return Value

The result of calling v.

Parameters

Name Description

Name	Description
`v`	The visitation function to invoke.
`jv`	The value to visit.

v

The visitation function to invoke.

jv

The value to visit.

Convenience header <boost/json.hpp>

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