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authorBoris Kolpackov <boris@codesynthesis.com>2011-08-04 13:29:42 +0200
committerBoris Kolpackov <boris@codesynthesis.com>2011-08-04 13:29:42 +0200
commit7082f3a11bcbba197b8fbc3c825b58b8b3875345 (patch)
tree86af6fa2549a498c594e1748d6dc8ea17ea377a4 /bootstrap
parent37f5dcb1d34205aa4a395c1e21e853e363fd7f12 (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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