On Wed, 21 Oct 2015, Bernd Schmidt wrote: > On 10/21/2015 11:29 PM, Joseph Myers wrote: > > On Wed, 21 Oct 2015, Steve Ellcey wrote: > > > > > Hm, how about a separate warning that wasn't part of -Wall but could > > > still be used by GCC or other products that wanted to enforce a 'no > > > unnecessary parenthesis' coding style. Not that I'm volunteering. > > > > What's "unnecessary"? It's normal in GNU style to add extra parentheses > > when their contents go over multiple lines, to help editors get > > indentation right.... > > But not for things on a single line, like the ones I quoted:
Indeed. Such a hypothetical warning would need to distinguish these cases (as well as the ones where parentheses are formally redundant but their absence is diagnosed by -Wparentheses) - the GNU rule is *not* to avoid any parentheses that don't change precedence. -- Joseph S. Myers jos...@codesourcery.com
