On Tue, 10 Jun 2008, Vincent Lefevre wrote: > On 2008-06-09 16:02:05 +0200, Richard Guenther wrote: > > Use -pedantic to warn about extensions. It doesn't make sense to > > warn for extensions if they are not deprecated. After all they are > > extensions. > > The problem with -pedantic is that it gives lots of spurious warnings. > We have code that uses useful (i.e. with no workarounds) extensions > and that is protected by #if, e.g. > > #ifdef HAVE_LONG_LONG > case LONG_LONG_ARG: > *(long long *) p = (long long) nchar; > break; > #endif
For this particular extension, you can use the more specific warning -Wpointer-arith. There was a discussion of possible changes that would facilitate better warning control for -pedantic and pedwarns <http://gcc.gnu.org/ml/gcc-patches/2008-02/msg00970.html>. You could then more simply add additional options for fine-grained control of particular -pedantic pedwarns. -- Joseph S. Myers [EMAIL PROTECTED]
