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
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
Return a reference to a rule.
Defined in header <boost/url/grammar/parse.hpp>
template< class Rule> constexpr implementation-defined ref( Rule const& r);
This function returns a rule which references the specified object. This
is used to reduce the number of bytes of storage (sizeof)
required by a combinator when it stores a copy of the object.
Ownership of the object is not transferred; the caller is responsible for
ensuring the lifetime of the object is extended until it is no longer referenced.
For best results, ref should
only be used with compile-time constants.
|
Name |
Description |
|---|---|
|
|
The rule to use |
Convenience header <boost/url/grammar.hpp>