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   comp.lang.c      Meh, in C you gotta define EVERYTHING      243,242 messages   

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   Message 242,844 of 243,242   
   highcrew to Waldek Hebisch   
   Re: function pointer question   
   06 Jan 26 21:44:00   
   
   From: high.crew3868@fastmail.com   
      
   On 1/6/26 3:50 PM, Waldek Hebisch wrote:   
   > Well, '(void)*foo' effectively says "foo" is not a null pointer   
   > (otherwise if would be undefined behaviour).  Good optimizer   
   > will_not_ dereference foo, but keep information for further   
   > use.   
      
   Hehe, now that I understand more of UB, that is correct, but   
   I don't think you can *rely* on the optimizer behavior, can you?   
      
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