On 07.05.2007 09:23, Peter Seebach wrote:
> (And I say this as someone who virtually NEVER writes 'if (ptr == NULL)' in C,
> because I think it's gratuitously verbose.  'if (ptr)' seems clearer to me.)

Just keep in mind that the behavior of the program will be dramatically 
different if you replace "if (ptr == NULL)" with "if (ptr)". :-))

	robert