4694

Check for duplicate docstrings.

1 files changed, 5 insertions, 0 deletions

diff --git a/subx/001help.cc b/subx/001help.cc
index 64f02274..5f90abca 100644
--- a/subx/001help.cc
+++ b/subx/001help.cc
@@ -250,6 +250,11 @@ template<typename T> bool contains_key(T& map, typename T::key_type const& key)
 template<typename T> typename T::mapped_type& get_or_insert(T& map, typename T::key_type const& key) {
   return map[key];
 }
+template<typename T> typename T::mapped_type const& put_new(T& map, typename T::key_type const& key, typename T::mapped_type const& value) {
+  assert(map.find(key) == map.end());
+  map[key] = value;
+  return map[key];
+}
 //: The contract: any container that relies on get_or_insert should never call
 //: contains_key.