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 setlocale()             Set the Locale

 #include   <locale.h>

 char *setlocale(categ, char *locale);
 int categ;             The category (see below)
 char *locale;          New locale

        This function lets you select a locale from these arguments for
        categ:

                LC_ALL  LC_COLLATE  LC_CTYPE  LC_MONETARY
                        LC_NUMERIC    LC_TIME

        Note that C++ supports only the "C" locale, so using
        this function has no effect.

       Returns:     If successful, setlocale() returns a string
                    indicating the previous locale. Otherwise, setlocale()
                    returns a null pointer.

   -------------------------------- Example ---------------------------------

        This program sets the locale to the only one C++ supports,
        the C locale.

        #include <locale.h>
        #include <stdio.h>

        int main(void)
        {

          setlocale(LC_ALL,"C");

          return 0;
         }