[PATCH v2 01/32] Introduce make_unique_xstrndup

[Simon Marchi]

On 2021-11-04 2:08 p.m., Tom Tromey wrote:
> This adds a new make_unique_xstrndup function, which is the "n"
> analogue of make_unique_xstrdup.  This is used by later patches.
> ---
>  gdbsupport/gdb_unique_ptr.h | 9 +++++++++
>  1 file changed, 9 insertions(+)
> 
> diff --git a/gdbsupport/gdb_unique_ptr.h b/gdbsupport/gdb_unique_ptr.h
> index df88cea9cf0..77aecb48e62 100644
> --- a/gdbsupport/gdb_unique_ptr.h
> +++ b/gdbsupport/gdb_unique_ptr.h
> @@ -64,4 +64,13 @@ make_unique_xstrdup (const char *str)
>    return gdb::unique_xmalloc_ptr<char> (xstrdup (str));
>  }
>  
> +/* Dup the first N characters of STR and return a unique_xmalloc_ptr
> +   for the result.  The result is always \0-terminated.  */
> +
> +static inline gdb::unique_xmalloc_ptr<char>
> +make_unique_xstrndup (const char *str, size_t n)
> +{
> +  return gdb::unique_xmalloc_ptr<char> (xstrndup (str, n));
> +}
> +
>  #endif /* COMMON_GDB_UNIQUE_PTR_H */
> -- 
> 2.31.1
> 

I found one spot where you could use this, in cli/cli-setshow.exp.  I think
that if the new function is used, this patch could be pushed right away.

Simon