/************************************************************************
*                                                                       *    
*  Copyright Digital Equipment Corporation 1998. All rights reserved.   *
*                                                                       *    
*  Restricted Rights: Use, duplication, or disclosure by the U.S.       *    
*  Government is subject to restrictions as set forth in subparagraph   *    
*  (c) (1) (ii) of DFARS 252.227-7013, or in FAR 52.227-19, or in FAR   *    
*  52.227-14 Alt. III, as applicable.                                   *    
*                                                                       *    
*  This software is proprietary to and embodies the confidential        *    
*  technology of Digital Equipment Corporation. Possession, use, or     *    
*  copying of this software and media is authorized only pursuant to a  *    
*  valid written license from Digital or an authorized sublicensor.     *    
*                                                                       *    
************************************************************************/

/*      wcsftime_example.c      */

/* Exersize the wcsftime formating routine.             */
/* NOTE: the format string is a "L" (or wide character) */
/*       string indicationd that this call is NOT in    */
/*       the XPG4 format, but it is in ISO C format.    */

#include <stdlib.h>
#include <stdio.h>
#include <time.h>
#include <wchar.h>
#include <locale.h>
#include <errno.h>

#define NUM_OF_DATES  7
#define BUF_SIZE 256

/* This program will format a number of different dates, once using the */
/* C locale and then using the fr_FR.ISO8859-1 locale.  Date and time   */
/* formatting is done using wcsftime()                                  */

main()
{
    int count,
        i;
    wchar_t buffer[BUF_SIZE];
    struct tm *tm_ptr;
    time_t time_list[NUM_OF_DATES] =
    {500, 68200000, 694223999,
     694224000, 704900000, 705000000,
     705900000};

    /* Display dates using the C locale */
    printf("\nUsing the C locale:\n\n");

    setlocale(LC_ALL, "C");

    for (i = 0; i < NUM_OF_DATES; i++) {
        /* Convert to a tm structure */
        tm_ptr = localtime(&time_list[i]);

        /* Format the date and time */
        count = wcsftime(buffer, BUF_SIZE, L"Date: %A %d %B %Y%nTime: %T%n%n",
                         tm_ptr);
        if (count == 0) {
            perror("wcsftime");
            exit(EXIT_FAILURE);
        }

        /* Print the result */
        printf("%S", buffer);
    }

    /* Display dates using the fr_FR.ISO8859-1 locale */
    printf("\nUsing the fr_FR.ISO8859-1 locale:\n\n");

    setlocale(LC_ALL, "fr_FR.ISO8859-1");

    for (i = 0; i < NUM_OF_DATES; i++) {
        /* Convert to a tm structure */
        tm_ptr = localtime(&time_list[i]);

        /* Format the date and time */
        count = wcsftime(buffer, BUF_SIZE, L"Date: %A %d %B %Y%nTime: %T%n%n",
                         tm_ptr);
        if (count == 0) {
            perror("wcsftime");
            exit(EXIT_FAILURE);
        }

        /* Print the result */
        printf("%S", buffer);
    }
}