It looks like there are a lot of typos in this file.  It would not compile on Visual Studio 2005 for me.  I fixed all the typos, and now I can compile with no problem. There were lots of cases where the author looks like he forgot to add the variable, order, to the argument list of the function. < atomic_thread_fence(memory_order order) ---

atomic_thread_fence(memory_order)

Here is a link to my final version of the file:  http://acumensoftwareinc.com/interlocked.hpp Here is the diff of the 2 versions: 10d9 < #include <boost/memory_order.hpp> 33c32 < platform_fence_before(memory_order order) ---

platform_fence_before(memory_order) 38c37 < platform_fence_after(memory_order order)

platform_fence_after(memory_order) 43c42 < platform_fence_before_store(memory_order order)

platform_fence_before_store(memory_order) 55c54 < platform_fence_after_load(memory_order order)

platform_fence_after_load(memory_order) 57,58c56,57 <     if (order == memory_order_seq_cst) { <         x86_full_fence();

    if (order == memory_order_seq_cst()) {         x86_full_fence(void); 89c88 < atomic_thread_fence(memory_order order)

atomic_thread_fence(memory_order) 91,92c90,91 <     if (order == memory_order_seq_cst) { <         detail::atomic::x86_full_fence();

    if (order == memory_order_seq_cst()) {         detail::atomic::x86_full_fence(void)