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C/C++

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

By Scott Meyers and Andrei Alexandrescu, August 01, 2004

In this installment, Scott and Andrei examine the relationship between thread safety and the volatile keyword.
August, 2004: C++ and the Perils of Double-Checked Locking: Part II

(a) 

Singleton::instance()->transmogrify();
Singleton::instance()->metamorphose();
Singleton::instance()->transmute();
(b) 

Singleton* const instance =
Singleton::instance(); // cache instance pointer
instance->transmogrify();
instance->metamorphose();
instance->transmute();

Example 13: Instead of writing code like (a), clients should use something like (b).



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