[PATCH 2/3] Fix gcvt to always show 'ndigits' of precision

[Corinna Vinschen]

On Dec 17 22:00, Keith Packard wrote:
> Leading zeros after the decimal point should not count
> towards the 'ndigits' limit.
> 
> This makes gcvt match glibc and the posix gcvt man page.
> 
> Signed-off-by: Keith Packard <keithp@keithp.com>
> ---
>  newlib/libc/stdlib/ecvtbuf.c | 18 +++++++-----------
>  1 file changed, 7 insertions(+), 11 deletions(-)
> 
> diff --git a/newlib/libc/stdlib/ecvtbuf.c b/newlib/libc/stdlib/ecvtbuf.c
> index 0a5d41a0f..8936363ce 100644
> --- a/newlib/libc/stdlib/ecvtbuf.c
> +++ b/newlib/libc/stdlib/ecvtbuf.c
> @@ -349,15 +349,10 @@ _gcvt (struct _reent *ptr,
>        char *end;
>        char *p;
>  
> -      if (invalue < 1.0)
> -	{
> -	  /* what we want is ndigits after the point */
> -	  p = _dtoa_r (ptr, invalue, 3, ndigit, &decpt, &sign, &end);
> -	}
> -      else
> -	{
> -	  p = _dtoa_r (ptr, invalue, 2, ndigit, &decpt, &sign, &end);
> -	}
> +      /* We always want ndigits of precision, even if that means printing
> +       * a bunch of leading zeros for numbers < 1.0
> +       */
> +      p = _dtoa_r (invalue, 2, ndigit, &decpt, &sign, &end);
                   ^^^^^
                same here.


Corinna

-- 
Corinna Vinschen
Cygwin Maintainer
Red Hat
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