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Re: [m4-1.4.11] build feedback

From: Bruno Haible
Subject: Re: [m4-1.4.11] build feedback
Date: Sun, 13 Apr 2008 22:26:54 +0200
User-agent: KMail/1.5.4

Tom G. Christensen wrote:
> > Thanks, that's good so far. The interesting stuff is to look
> >   - what happens in line vasnprintf.c:2734,
>  >
> Single stepping from test-vasprintf-posix:1305 does not seem to stop 
> there (closest is 2531)
> >   - at the result in line vasnprintf.c:4635.
>  >
> Single stepping indeed makes a stop at this line, and here result is 
> "0.000000 33"

Hmm. That's still not conclusive. I had expected the program to stop at
vasnprintf.c:4635 twice, once with result = "0.000000" and then with
"0.000000 33".

Needs more single-stepping. Where does the "0.000000" string definitely come
from? From the system, I suppose?

You can also try a standalone test program, linked against the system's
sprintf(), like this:
#include <stdio.h>
int main()
  char buf[100];
  sprintf (buf, "%Lf", -0.0L);
  printf ("%s\n", buf);
  return 0;


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