Jason Rhinelander f2ecd8927e Implement reference_internal with a keep_alive ...

reference_internal requires an `instance` field to track the returned
reference's parent, but that's just a duplication of what
keep_alive<0,1> does, so use a keep alive to do this to eliminate the
duplication.

2016-08-10 12:08:04 -04:00

2.3 KiB

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