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August 01, 2004

C++ and the Perils of Double-Checked Locking: Part II

(Page 7 of 9)
August, 2004: C++ and the Perils of Double-Checked Locking: Part II 

if (pInstance == 0) {
   Lock lock;
   if (pInstance == 0) {
      Singleton* volatile temp =
         static_cast<Singleton*>(operator new(sizeof(Singleton)));
      temp->x = 5; // inlined Singleton constructor
      pInstance = temp;
   }
}

Example 8: Inlining the constructor in Example 7.

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