On Mon, Aug 18, 2025 at 12:20 PM Andrew Pinski
<[email protected]> wrote:
>
> This example used to work (with C) in GCC 14 before the
> warning for different pointer types without a cast was changed
> to an error.
> The fix is to make the q variable `int*` rather than the current `char*`.
> This also fixes the example for C++ too.
>
> Pushed as obvious after doing a `make html`.

Pushed also to gcc 15 and 14 branches.

Thanks,
Andrew

>
> gcc/ChangeLog:
>
>         * doc/extend.texi (__builtin_object_size): Fix example.
>
> Signed-off-by: Andrew Pinski <[email protected]>
> ---
>  gcc/doc/extend.texi | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/gcc/doc/extend.texi b/gcc/doc/extend.texi
> index cc9005439a4..38229583403 100644
> --- a/gcc/doc/extend.texi
> +++ b/gcc/doc/extend.texi
> @@ -17252,7 +17252,8 @@ is computed.
>
>  @smallexample
>  struct V @{ char buf1[10]; int b; char buf2[10]; @} var;
> -char *p = &var.buf1[1], *q = &var.b;
> +char *p = &var.buf1[1];
> +int *q = &var.b;
>
>  /* Here the object p points to is var.  */
>  assert (__builtin_object_size (p, 0) == sizeof (var) - 1);
> --
> 2.43.0
>

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