Boost C++ Libraries

...one of the most highly regarded and expertly designed C++ library projects in the world. — Herb Sutter and Andrei Alexandrescu, C++ Coding Standards

This is the documentation for a snapshot of the develop branch, built from commit 30b9b8fd62.

has_value_from

Determine if T can be converted to value.

Synopsis

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

template<
    class T>
using has_value_from = see-below;

Description

If T can be converted to value via a call to value_from, the static data member value is defined as true. Otherwise, value is defined as false.

See Also

Convenience header <boost/json.hpp>