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authorBoris Kolpackov <boris@codesynthesis.com>2011-08-04 13:29:43 +0200
committerBoris Kolpackov <boris@codesynthesis.com>2011-08-04 13:29:43 +0200
commit4f9c2fcf54f340ec1d137e2cd153461f29888980 (patch)
tree04a17612aef64ee0217a9aa22238867645a326f7 /build/import/libpq/LICENSE
parent9abf73c8180e3664a71bac73629f67851c6c12da (diff)
Add support for value wrappers
Wrapper is a class that wraps another type. Examples of wrappers are various smart pointers, holders, etc. A wrapper can be transparent or it can handle the NULL semantics. The new odb::nullable class template is a NULL wrapper that helps to add the NULL semantics to a value type. New test: common/wrapper.
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