naveen yadav <yad.naveen@xxxxxxxxx> writes: > I want to know which C / C++ standard my gcc is supported, Is there > any method to find ? Check the documentation which comes with your gcc. Look for the -std option. >>From below site, they say C standard is ‘gnu90’, and C++ standard is ‘gnu++98’. > > http://gcc.gnu.org/onlinedocs/gcc/Standards.html > > > Is it applicable to all gcc versions currently available? It's applicable to all supported versions of gcc, but since gcc is free software all versions are in a sense available. > I try using below method > > [naveen@localhost ~]$ gcc -std=gnu99 test1.c -v Yes, that works too. If you try with an unsupported version, you will get an error. Ian