nsprpub/pr/tests/i2l.c

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* ***** BEGIN LICENSE BLOCK *****
   3  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
   4  *
   5  * The contents of this file are subject to the Mozilla Public License Version
   6  * 1.1 (the "License"); you may not use this file except in compliance with
   7  * the License. You may obtain a copy of the License at
   8  * http://www.mozilla.org/MPL/
   9  *
  10  * Software distributed under the License is distributed on an "AS IS" basis,
  11  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
  12  * for the specific language governing rights and limitations under the
  13  * License.
  14  *
  15  * The Original Code is the Netscape Portable Runtime (NSPR).
  16  *
  17  * The Initial Developer of the Original Code is
  18  * Netscape Communications Corporation.
  19  * Portions created by the Initial Developer are Copyright (C) 1998-2000
  20  * the Initial Developer. All Rights Reserved.
  21  *
  22  * Contributor(s):
  23  *
  24  * Alternatively, the contents of this file may be used under the terms of
  25  * either the GNU General Public License Version 2 or later (the "GPL"), or
  26  * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
  27  * in which case the provisions of the GPL or the LGPL are applicable instead
  28  * of those above. If you wish to allow use of your version of this file only
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  30  * use your version of this file under the terms of the MPL, indicate your
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  32  * and other provisions required by the GPL or the LGPL. If you do not delete
  33  * the provisions above, a recipient may use your version of this file under
  34  * the terms of any one of the MPL, the GPL or the LGPL.
  35  *
  36  * ***** END LICENSE BLOCK ***** */
  37
  38 #include <stdlib.h>
  39
  40 #include "prio.h"
  41 #include "prinit.h"
  42 #include "prprf.h"
  43 #include "prlong.h"
  44
  45 #include "plerror.h"
  46 #include "plgetopt.h"
  47
  48 typedef union Overlay_i
  49 {
  50     PRInt32 i;
  51     PRInt64 l;
  52 } Overlay_i;
  53
  54 typedef union Overlay_u
  55 {
  56     PRUint32 i;
  57     PRUint64 l;
  58 } Overlay_u;
  59
  60 static PRFileDesc *err = NULL;
  61
  62 static void Help(void)
  63 {
  64     PR_fprintf(err, "Usage: -i n | -u n | -h\n");
  65     PR_fprintf(err, "\t-i n treat following number as signed integer\n");
  66     PR_fprintf(err, "\t-u n treat following number as unsigned integer\n");
  67     PR_fprintf(err, "\t-h   This message and nothing else\n");
  68 }  /* Help */
  69
  70 static PRIntn PR_CALLBACK RealMain(PRIntn argc, char **argv)
  71 {
  72     Overlay_i si;
  73     Overlay_u ui;
  74     PLOptStatus os;
  75     PRBool bsi = PR_FALSE, bui = PR_FALSE;
  76     PLOptState *opt = PL_CreateOptState(argc, argv, "hi:u:");
  77     err = PR_GetSpecialFD(PR_StandardError);
  78
  79     while (PL_OPT_EOL != (os = PL_GetNextOpt(opt)))
  80     {
  81         if (PL_OPT_BAD == os) continue;
  82         switch (opt->option)
  83         {
  84         case 'i':  /* signed integer */
  85             si.i = (PRInt32)atoi(opt->value);
  86             bsi = PR_TRUE;
  87             break;
  88         case 'u':  /* unsigned */
  89             ui.i = (PRUint32)atoi(opt->value);
  90             bui = PR_TRUE;
  91             break;
  92         case 'h':  /* user wants some guidance */
  93          default:
  94             Help();  /* so give him an earful */
  95             return 2;  /* but not a lot else */
  96         }
  97     }
  98     PL_DestroyOptState(opt);
  99
 100 #if defined(HAVE_LONG_LONG)
 101     PR_fprintf(err, "We have long long\n");
 102 #else
 103     PR_fprintf(err, "We don't have long long\n");
 104 #endif
 105
 106     if (bsi)
 107     {
 108         PR_fprintf(err, "Converting %ld: ", si.i);
 109         LL_I2L(si.l, si.i);
 110         PR_fprintf(err, "%lld\n", si.l);
 111     }
 112
 113     if (bui)
 114     {
 115         PR_fprintf(err, "Converting %lu: ", ui.i);
 116         LL_I2L(ui.l, ui.i);
 117         PR_fprintf(err, "%llu\n", ui.l);
 118     }
 119     return 0;
 120
 121 }  /* main */
 122
 123
 124 PRIntn main(PRIntn argc, char *argv[])
 125 {
 126     PRIntn rv;
 127
 128     PR_STDIO_INIT();
 129     rv = PR_Initialize(RealMain, argc, argv, 0);
 130     return rv;
 131 }  /* main */
 132
 133 /* i2l.c */