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| -rw-r--r-- | odb/details/transfer-ptr.hxx | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/odb/details/transfer-ptr.hxx b/odb/details/transfer-ptr.hxx new file mode 100644 index 0000000..e7ad42c --- /dev/null +++ b/odb/details/transfer-ptr.hxx @@ -0,0 +1,54 @@ +// file : odb/details/transfer-ptr.hxx +// copyright : Copyright (c) 2009-2012 Code Synthesis Tools CC +// license : GNU GPL v2; see accompanying LICENSE file + +#ifndef ODB_DETAILS_TRANSFER_PTR_HXX +#define ODB_DETAILS_TRANSFER_PTR_HXX + +#include <odb/pre.hxx> + +#include <memory> // std::auto_ptr, std::unique_ptr + +#include <odb/details/config.hxx> // ODB_CXX11 + +namespace odb +{ + namespace details + { + template <typename T> + class transfer_ptr + { + public: + typedef T element_type; + + transfer_ptr (): p_ (0) {} + + template <typename T1> + transfer_ptr (std::auto_ptr<T1> p): p_ (p.release ()) {} + +#ifdef ODB_CXX11 + transfer_ptr (std::nullptr_t): p_ (0) {} + + template <typename T1> + transfer_ptr (std::unique_ptr<T1>&& p): p_ (p.release ()) {} +#endif + + ~transfer_ptr () {delete p_;} + + T* + transfer () + { + T* r (p_); + p_ = 0; + return r; + } + + private: + T* p_; + }; + } +} + +#include <odb/post.hxx> + +#endif // ODB_DETAILS_TRANSFER_PTR_HXX |