How to allocate thread local storage?

Question

I have a variable in my function that is static, but I would like it to be static on a per thread basis.

How can I allocate the memory for my C++ class such that eac

Answer 1

#include 
static boost::thread_specific_ptr< MyClass> instance;
if( ! instance.get() ) {
    // first time called by this thread
    // construct test element to be used in all subsequent calls from this thread
    instance.reset( new MyClass);
}
    instance->doSomething();