real::detail::owned_name_context Struct Reference

The name-resolution context a result owns when it must outlive the regex it came from. More...

#include <storage.hpp>

Public Attributes
std::string	pattern
	Owned copy of the pattern text.
std::vector< named_group >	names
	Owned copy of the named-group table.

Detailed Description

The name-resolution context a result owns when it must outlive the regex it came from.

A result resolves a group name by comparing it against the pattern text at the offsets its named-group table records, so it borrows BOTH from the regex. The borrow is free and correct while the regex is alive, which is the documented contract; on a temporary regex it is a read of freed memory. A result produced from an rvalue regex copies both here instead. The copy is shared, so copying such a result shares the context rather than duplicating it, and the cost lands only where a pattern was just compiled – which allocates far more than this.

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The documentation for this struct was generated from the following file:

• include/real/storage.hpp