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From: DAVE%UWF.BITNET@wiscvm.wisc.EDU
Newsgroups: comp.lang.c
Subject: Problems with PRINTF, for some ungodly reason...
Message-ID: <7527@brl-adm.ARPA>
Date: Mon, 25-May-87 14:49:28 EDT
Article-I.D.: brl-adm.7527
Posted: Mon May 25 14:49:28 1987
Date-Received: Tue, 26-May-87 03:17:27 EDT
Sender: news@brl-adm.ARPA
Lines: 27

All,
   I've got a (hopefully) simple problem with the printf statement, using
Lattice C V3.  My code looks something like this:

    while (i <= N0)
        {
        p = (a + b) / b;
        printf("\ni = %5d, ",i);
        printf("p = %lf, so there", p);
        if (abs(p - pl) / abs(p) < tol)
            {
            printf("\n\nMethod Returns %lf after %d iterations.\n", p, i);
            return (0);
            }
        i++;
        pl = p;
        (f(a) * f(p) > 0) ? (a = p) : (b = p);
        }

The problem is that both of the two printf's that try to output the variable
'P' meet with disaster, in that both output the format spec, in this case,
the %lf, but I also tried %f, %g, and %G, mostly in desperation.  How does
one output a (double) variable?

Lost & 1/2,

Dave Jaquay (DAVE@UWF.BITNET)