[PATCH] stdio: Check the first character is a digit before calling read_int

[Andreas Schwab]

On Aug 07 2025, panzhe0328 wrote:

> diff --git a/stdio-common/vfprintf-internal.c b/stdio-common/vfprintf-internal.c
> index fa41e1b242..62e478a058 100644
> --- a/stdio-common/vfprintf-internal.c
> +++ b/stdio-common/vfprintf-internal.c
> @@ -794,6 +794,13 @@ Xprintf_buffer (struct Xprintf_buffer *buf, const CHAR_T *format,
>  
>        /* Given width in format string.  */
>      LABEL (width):
> +      if (!ISDIGIT (*f))

How can this be reached with !ISDIGIT?

-- 
Andreas Schwab, schwab@linux-m68k.org
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