Re: [wwwdocs] Mention -Wshift-overflow

2015-07-27 Thread Marek Polacek
On Mon, Jul 27, 2015 at 12:34:06AM +0200, Gerald Pfeifer wrote: > Hi Marek, > > On Tue, 21 Jul 2015, Marek Polacek wrote: > > +A new command-line option -Wshift-overflow has been > > + added for the C and C++ compilers, which warns about left shift > > + overflows. -Wshift-overflow=2 also

Re: [wwwdocs] Mention -Wshift-overflow

2015-07-26 Thread Gerald Pfeifer
Hi Marek, On Tue, 21 Jul 2015, Marek Polacek wrote: > +A new command-line option -Wshift-overflow has been > + added for the C and C++ compilers, which warns about left shift > + overflows. -Wshift-overflow=2 also warns about > + left-shifting 1 into the sign bit. from what I can