Hi

   I plan to apply attached patch tomorrow to fix those _GLIBCXX_DEBUG 
failures:

FAIL: 23_containers/map/modifiers/insert/dr2354.cc (test for excess errors)
FAIL: 23_containers/multimap/modifiers/insert/dr2354.cc (test for excess errors)
FAIL: 23_containers/unordered_map/insert/dr2354.cc (test for excess errors)
FAIL: 23_containers/unordered_multimap/insert/dr2354.cc (test for excess errors)

   I am also adding tests checking additional DR 2354 insert overloads. I discovered I needed to add those only because I looked at the ChangeLog entry.

   Tested under Linux x86_64 Debug mode.

François