On Thu, Feb 16, 2012 at 4:01 PM, Paul Crawford <psc@xxxxxxxxxxxxxxxx> wrote: > Dear Frantisek, > >> compiler v1.9 (http://www.openwatcom.org/) for DOS. And there I knock >> to problem - it seems as this compiler not support construction: >> >> int main(int argc, char *argv[], char *envp[]) > > I think this 3rd argument may be a MS-specific extension, as most C programs > just have argc & argv in the call to main(); This is not actually MS-specific; I see it in my execve(2) manpage here on Linux, and <http://en.wikipedia.org/wiki/Main_function#C_and_C.2B.2B> says "Unix (though not POSIX.1) and Microsoft Windows have a third argument giving the program's environment". (I was actually a little surprised to see that it wasn't POSIX.) GNU's libc.info says so, too: > In Unix systems you can define `main' a third way, using three > arguments: > > int main (int ARGC, char *ARGV[], char *ENVP[]) > > The first two arguments are just the same. The third argument ENVP > gives the program's environment; it is the same as the value of > `environ'. See Environment Variables. POSIX.1 does not allow this > three-argument form, so to be portable it is best to write `main' to > take two arguments, and use the value of `environ'. -- To unsubscribe from this list: send the line "unsubscribe linux-msdos" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
