On Mon, 2011-06-27 at 18:28 +0100, Jonathan Wakely wrote: > On 27 June 2011 17:35, eric wrote: > > On Mon, 2011-06-27 at 17:03 +0100, Jonathan Wakely wrote: > >> On 27 June 2011 16:39, eric <fsshl@xxxxxxx> wrote: > >> > Dear advanced c/g++ programers: > >> > after I copied and compiled last email's code > >> > I tested it, with your suggestion (put POSIX and C behind it), they > >> > run (generate locale), > >> > but > >> > all test failed to make output file with size > 0 > >> > so if you can plz help again, and thank a lot in advance, Eric > >> > > >> > ------------------------------------------------------------ > >> > eric@eric-laptop:~/cppcookbook$ ./a.out > >> > trying to access locale el_GR.utf8 > >> > Couldn't generate locale el_GR.utf8: locale::facet::_S_create_c_locale > >> > name not valid > >> > Error when writing to file > >> > >> As shown by 'locale -a' you don't have the el_GR.utf8 locale > >> installed, so obviously this won't work. > >> > >> > eric@eric-laptop:~/cppcookbook$ ls -l -a unicode.txt > >> > -rw-r--r-- 1 eric eric 0 2011-06-27 08:31 unicode.txt > >> > eric@eric-laptop:~/cppcookbook$ ./a.out POSIX > >> > trying to access locale POSIX > >> > Generated locale C > >> > Error when writing to file > >> > eric@eric-laptop:~/cppcookbook$ ./a.out C > >> > trying to access locale C > >> > Generated locale C > >> > Error when writing to file > >> > eric@eric-laptop:~/cppcookbook$ ./a.out B > >> > trying to access locale B > >> > Couldn't generate locale B: locale::facet::_S_create_c_locale name not > >> > valid > >> > Error when writing to file > >> > eric@eric-laptop:~/cppcookbook$ > >> > ------------------------------------------------------- > >> > >> > >> Did you ever answer the question of which OS you're using? > >> > >> Your gcc is using --enable-clocale=generic so doesn't support named > >> locales in the C++ library. > >> > >> You could try running your code with a different global locale, i.e. > >> > >> LANG=en_US.utf8 ./a.out > > ---------------------------------------------------------------- > > thanks your suggestion, > > here is the result of my test on your suggestion and what kind of I use > > ---- > > eric@eric-laptop:~/cppcookbook$ LANG=en_US.utf8 ./a.out > > trying to access locale el_GR.utf8 > > Couldn't generate locale el_GR.utf8: locale::facet::_S_create_c_locale > > name not valid > > Error when writing to file > > eric@eric-laptop:~/cppcookbook$ uname -r > > 2.6.35-25-generic > > eric@eric-laptop:~/cppcookbook$ > > (Ubuntu/linux 10.04 upgrade kernel to 2.6.35-25) > > Your GCC seems to be using --enable-clocale=generic on GNU/Linux, > which makes no sense. > > What does 'gcc -v' print? > > > I also modify from el_GR to en_US in en_US.utf8 > > then ./a.out (or LANG=en_US.utf8 ./a.out , same error) > > trying to access locale en_US.utf8 > > Couldn't generate locale en_US.utf8: locale::facet::_S_create_c_locale > > name not valid > > Error when writing to file > > This will not work, you cannot load any named locale with your version of gcc. > > My suggestion is to run the original program to write unicode to file > (not this test program) with LANG=en_US.utf8 ---------------------------------------------------------- eric@eric-laptop:~/cppcookbook$ gcc -v Using built-in specs. COLLECT_GCC=gcc COLLECT_LTO_WRAPPER=/usr/local/libexec/gcc/i686-pc-linux-gnu/4.5.2/lto-wrapper Target: i686-pc-linux-gnu Configured with: ./configure Thread model: posix gcc version 4.5.2 (GCC) eric@eric-laptop:~/cppcookbook$ ----------------------------------------------------------------- there indeed is another way to write unicode to outfile in my current g ++(similar as vc++ 2005), but I like to know why outfile << ws2 << endl; which according to book work in CodeWarrior, can not work in my system (gcc/g++/linux)?(file length 0 or show 0 at outfile.good()) thanks your reply a lot in advance, Eric ----------------------------------------------------------------------
