Hey, Well, the three big ones are K&R C, C89, and C99 - although the latter is not implemented fully (see: http://gcc.gnu.org/c99status.html). I would recommend using the most recent: C99 (so, -std=c99). Or if you're only planning on using GCC, you can also use gnu99, which enables the GNU extensions to C99. On Mon, Aug 31, 2009 at 3:34 AM, Tim<timlee126@xxxxxxxxx> wrote: > Hi, > I am confused by reading http://gcc.gnu.org/onlinedocs/gcc-4.1.2/gcc/Standards.html, which says "GCC supports three versions of the C standard". It seems says more than one versions. Can anyone clarify it? Which version is the most popular now and recommended? > Thanks and regards! > >
