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Get the Current Thread Number

Syntax
thread = thread_alloc::thread_num()

Purpose
Some of the thread_alloc allocation routines have a thread number. This routine enables you to determine the current thread.

thread
The return value thread has prototype
     size_t 
thread
and is the currently executing thread number. If _OPENMP is not defined, thread is zero.

Example
thread_alloc.cpp
Input File: cppad/thread_alloc.hpp