no more useless singleton class

[chaz/yoink] / src / Moof / Singleton.hh

diff --git a/src/Moof/Singleton.hh b/src/Moof/Singleton.hh
deleted file mode 100644 (file)
index 3d60ff2..0000000
--- a/src/Moof/Singleton.hh
+++ /dev/null
@@ -1,91 +0,0 @@
-
-/*******************************************************************************
-
- Copyright (c) 2009, Charles McGarvey
- All rights reserved.
- 
- Redistribution   and   use  in  source  and  binary  forms,  with  or  without
- modification, are permitted provided that the following conditions are met:
- 
-   * Redistributions  of  source  code  must retain the above copyright notice,
-     this list of conditions and the following disclaimer.
-   * Redistributions  in binary form must reproduce the above copyright notice,
-     this  list of conditions and the following disclaimer in the documentation
-     and/or other materials provided with the distribution.
- 
- THIS  SOFTWARE  IS  PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- AND  ANY  EXPRESS  OR  IMPLIED  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- DISCLAIMED.  IN  NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
- FOR  ANY  DIRECT,  INDIRECT,  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- DAMAGES  (INCLUDING,  BUT  NOT  LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
- SERVICES;  LOSS  OF  USE,  DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
- CAUSED  AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
- OR  TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-*******************************************************************************/
-
-#ifndef _MOOF_SINGLETON_HH_
-#define _MOOF_SINGLETON_HH_
-
-#include <stdexcept>
-
-
-namespace Mf {
-
-
-template <typename T>
-class Singleton
-{
-       static T* ptr_;
-
-public:
-       struct Exception : public std::runtime_error
-       {
-               explicit Exception(const std::string& what_arg) :
-                       std::runtime_error(what_arg) {}
-       };
-
-       Singleton()
-       {
-               if (!ptr_)
-               {
-                       // This hack is from Game Programming Gems.
-                       long long offset = (long long)(T*)1 - (long long)(Singleton<T>*)(T*)1;
-                       ptr_ = (T*)((long long)this + offset);
-               }
-       }
-       ~Singleton()
-       {
-               long long offset = (long long)(T*)1 - (long long)(Singleton<T>*)(T*)1;
-               if (ptr_ == (T*)((long long)this + offset))
-               {
-                       ptr_ = 0;
-               }
-       }
-
-       static T& instance()
-       {
-               if (!ptr_)
-               {
-                       throw Exception("accessing uninstantiated singleton");
-               }
-               return *ptr_;
-       }
-
-       static T* instance_ptr()
-       {
-               return ptr_;
-       }
-};
-
-template <typename T> T* Singleton<T>::ptr_ = 0;
-
-
-} // namespace Mf
-
-#endif // _MOOF_SINGLETON_HH_
-
-/** vim: set ts=4 sw=4 tw=80: *************************************************/
-