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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* 
 * The contents of this file are subject to the Mozilla Public
 * License Version 1.1 (the "License"); you may not use this file
 * except in compliance with the License. You may obtain a copy of
 * the License at http://www.mozilla.org/MPL/
 * 
 * Software distributed under the License is distributed on an "AS
 * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
 * implied. See the License for the specific language governing
 * rights and limitations under the License.
 * 
 * The Original Code is the Netscape Portable Runtime (NSPR).
 * 
 * The Initial Developer of the Original Code is Netscape
 * Communications Corporation.  Portions created by Netscape are 
 * Copyright (C) 1998-2000 Netscape Communications Corporation.  All
 * Rights Reserved.
 * 
 * Contributor(s):
 * 
 * Alternatively, the contents of this file may be used under the
 * terms of the GNU General Public License Version 2 or later (the
 * "GPL"), in which case the provisions of the GPL are applicable 
 * instead of those above.  If you wish to allow use of your 
 * version of this file only under the terms of the GPL and not to
 * allow others to use your version of this file under the MPL,
 * indicate your decision by deleting the provisions above and
 * replace them with the notice and other provisions required by
 * the GPL.  If you do not delete the provisions above, a recipient
 * may use your version of this file under either the MPL or the
 * GPL.
 */

#include <stdlib.h>

#include "prio.h"
#include "prinit.h"
#include "prprf.h"
#include "prlong.h"

#include "plerror.h"
#include "plgetopt.h"

typedef union Overlay_i
{
    PRInt32 i;
    PRInt64 l;
} Overlay_i;

typedef union Overlay_u
{
    PRUint32 i;
    PRUint64 l;
} Overlay_u;

static PRFileDesc *err = NULL;

static void Help(void)
{
    PR_fprintf(err, "Usage: -i n | -u n | -h\n");
    PR_fprintf(err, "\t-i n treat following number as signed integer\n");
    PR_fprintf(err, "\t-u n treat following number as unsigned integer\n");
    PR_fprintf(err, "\t-h   This message and nothing else\n");
}  /* Help */

static PRIntn PR_CALLBACK RealMain(PRIntn argc, char **argv)
{
    Overlay_i si;
    Overlay_u ui;
    PLOptStatus os;
    PRBool bsi = PR_FALSE, bui = PR_FALSE;
    PLOptState *opt = PL_CreateOptState(argc, argv, "hi:u:");
    err = PR_GetSpecialFD(PR_StandardError);

    while (PL_OPT_EOL != (os = PL_GetNextOpt(opt)))
    {
        if (PL_OPT_BAD == os) continue;
        switch (opt->option)
        {
        case 'i':  /* signed integer */
            si.i = (PRInt32)atoi(opt->value);
            bsi = PR_TRUE;
            break;
        case 'u':  /* unsigned */
            ui.i = (PRUint32)atoi(opt->value);
            bui = PR_TRUE;
            break;
        case 'h':  /* user wants some guidance */
         default:
            Help();  /* so give him an earful */
            return 2;  /* but not a lot else */
        }
    }
    PL_DestroyOptState(opt);

#if defined(HAVE_LONG_LONG)
    PR_fprintf(err, "We have long long\n");
#else
    PR_fprintf(err, "We don't have long long\n");
#endif

    if (bsi)
    {
        PR_fprintf(err, "Converting %ld: ", si.i);
        LL_I2L(si.l, si.i);
        PR_fprintf(err, "%lld\n", si.l);
    }

    if (bui)
    {
        PR_fprintf(err, "Converting %lu: ", ui.i);
        LL_I2L(ui.l, ui.i);
        PR_fprintf(err, "%llu\n", ui.l);
    }
    return 0;

}  /* main */


PRIntn main(PRIntn argc, char *argv[])
{
    PRIntn rv;
    
    PR_STDIO_INIT();
    rv = PR_Initialize(RealMain, argc, argv, 0);
    return rv;
}  /* main */

/* i2l.c */