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-rw-r--r--boost/atomic/detail/extra_operations_fwd.hpp2
1 files changed, 1 insertions, 1 deletions
diff --git a/boost/atomic/detail/extra_operations_fwd.hpp b/boost/atomic/detail/extra_operations_fwd.hpp
index 8c258f6dc2..399a823351 100644
--- a/boost/atomic/detail/extra_operations_fwd.hpp
+++ b/boost/atomic/detail/extra_operations_fwd.hpp
@@ -25,7 +25,7 @@ namespace boost {
namespace atomics {
namespace detail {
-template< typename Base, std::size_t Size, bool Signed >
+template< typename Base, std::size_t Size, bool Signed, bool = Base::is_always_lock_free >
struct extra_operations;
} // namespace detail