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-rw-r--r--boost/compute/algorithm/unique.hpp2
1 files changed, 2 insertions, 0 deletions
diff --git a/boost/compute/algorithm/unique.hpp b/boost/compute/algorithm/unique.hpp
index faa36bad9d..8b7e2a0d0d 100644
--- a/boost/compute/algorithm/unique.hpp
+++ b/boost/compute/algorithm/unique.hpp
@@ -31,6 +31,8 @@ namespace compute {
///
/// \return \c InputIterator to the new logical end of the range
///
+/// Space complexity: \Omega(4n)
+///
/// \see unique_copy()
template<class InputIterator, class BinaryPredicate>
inline InputIterator unique(InputIterator first,