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authorEelco Dolstra <eelco.dolstra@logicblox.com>2016-02-04T13·28+0100
committerEelco Dolstra <eelco.dolstra@logicblox.com>2016-02-04T13·28+0100
commitc10c61449f954702ae6d8092120321744acd82ff (patch)
tree40c161c42301acdfbfd7786638293951c5baf54d /doc
parent4f7824c58ee0420c5679be6f0a9591f59edf410f (diff)
Eliminate the "store" global variable
Also, move a few free-standing functions into StoreAPI and Derivation.

Also, introduce a non-nullable smart pointer, ref<T>, which is just a
wrapper around std::shared_ptr ensuring that the pointer is never
null. (For reference-counted values, this is better than passing a
"T&", because the latter doesn't maintain the refcount. Usually, the
caller will have a shared_ptr keeping the value alive, but that's not
always the case, e.g., when passing a reference to a std::thread via
std::bind.)
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