From: jklowden@speakeasy.net   
      
   On Wed, 24 Oct 2012 11:41:48 -0700 (PDT)   
   James Lothian  wrote:   
      
   > Yes, you can work round this by creating MyThing in a separate line,   
   > but the fact that something as innocuous looking as   
   > myMap["HelloMum"] = new MyThing;   
   > can have such subtle consequences tends to put me off using operator[]   
   > for inserting into maps.   
      
   Hmm, OK.  It sounds like you prefer the wordy insert/make_pair syntax   
   because it's atomic.   
      
   What do you do if the lhs exists, i.e., if you intend to   
   overwrite it and map::insert would fail?   
      
   --jkl   
      
      
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