Path: utzoo!utgpu!water!watmath!clyde!att!osu-cis!tut.cis.ohio-state.edu!mandrill!gatech!ncsuvx!ece-csc!jnh
From: jnh@ece-csc.UUCP (Joseph Nathan Hall)
Newsgroups: comp.lang.c
Subject: VAX (VMS) C / strangeness (serious bug?) w/ prototypes and floats
Message-ID: <3614@ece-csc.UUCP>
Date: 26 May 88 23:42:56 GMT
Reply-To: jnh@ece-csc.UUCP (Joseph Nathan Hall)
Organization: North Carolina State University, Raleigh, NC
Lines: 33

The program

	void test(float x, float y, float z)
	{
		printf("%f %f %f", x, y, z);
	}

	main ()
	{
		float x, y, z;
		test(1.0, 2.0, 3.0);
		x = 1.0;
		y = 2.0;
		y = 3.0;
		test(x, y, z);
	}

produces the quixotic output

	1.000000 2.000000 1.000000
	3.000000 2.000000 3.000000

on my machine.  I'm running VAX C 2.3-024 on VAX/VMS 4.6, on a VAXstation II
GPX.  Versions of this where test is declared old-style and where x, y, and
z in the new-style declaration are double work fine.

Am I losing it, or is this as FUBAR as it seems?

-- 
v   v sssss|| joseph hall                      || 201-1D Hampton Lee Court
 v v s   s || jnh@ece-csc.ncsu.edu (Internet)  || Cary, NC  27511
  v   sss  || the opinions expressed herein are not necessarily those of my
-----------|| employer, north carolina state university . . . . . . . . . . .