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-rw-r--r--boost/icl/map.hpp2
1 files changed, 1 insertions, 1 deletions
diff --git a/boost/icl/map.hpp b/boost/icl/map.hpp
index 7092906a79..1aa37d6ec6 100644
--- a/boost/icl/map.hpp
+++ b/boost/icl/map.hpp
@@ -192,7 +192,7 @@ public:
insert(key_value_pair);
}
- map& operator = (map& src)
+ map& operator = (const map& src)
{
base_type::operator=(src);
return *this;