From mboxrd@z Thu Jan 1 00:00:00 1970 From: brantley@coraid.com (Brantley Coile) Date: Mon, 20 Feb 2012 18:34:26 -0600 Subject: [TUHS] why the leading under score added to function names? In-Reply-To: References: <201202202052.q1KKqagi002055@freefriends.org> Message-ID: <96DE558D-5FE2-4F6F-BC83-18EC727162FA@coraid.com> correct. we could link to assembler code with _entry points and not worry about symbol collisions in the rest of the code. iPhone email On Feb 20, 2012, at 6:23 PM, "Dave Horsfall" wrote: > On Mon, 20 Feb 2012, arnold at skeeve.com wrote: > > [...] > >> I'm pretty sure this dates back to PDP-11 days. I'm wondering "why?". >> Why did the C compiler prepend an underscore to function names? > > Sure was the PDP-11 :-) I vaguely recall that it was to make sure that > user functions did not conflict with predefined assembler functions, as > that would be a pain to diagnose (much like having swap overlap root). > > -- Dave > _______________________________________________ > TUHS mailing list > TUHS at minnie.tuhs.org > https://minnie.tuhs.org/mailman/listinfo/tuhs