Path: utzoo!attcan!uunet!lll-winken!lll-tis!ames!mailrus!cornell!uw-beaver!ssc-vax!dmg
From: dmg@ssc-vax.UUCP (David Geary)
Newsgroups: comp.sys.amiga.tech
Subject: Re: Variable Argument Lists in Lattice 4.1
Keywords: variable argument lattice C 4.1
Message-ID: <2177@ssc-vax.UUCP>
Date: 22 Aug 88 22:31:59 GMT
References: <296@nfsun.UUCP>
Organization: Boeing Aerospace Corp., Seattle WA
Lines: 19

In article <296@nfsun.UUCP>, kgeisel@nfsun.UUCP (kurt geisel) writes:
> 
> Is there any way to get Lattice C 4.1 to provide variable argument list
> support using the standard varargs.h/stdarg.h macros?
> 

  Oops, forgot to mention one thing.  Remember, that when C puts
  short and char values on the stack, they are automatically
  converted to int.  Floats are automatically converted to double.
  Therefore, if you want to pass a float, say, to a variadic
  function, you must extract it off the stack as a double, and
  then cast it into a float.  Ditto for char's and short's
  (meaning extract off stack as int's, and then cast).


-- 
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~ David Geary, Boeing Aerospace,               ~ 
~ Seattle - "THE DRIZZLE CAPITAL OF THE WORLD" ~
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