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lightning-sunbird  0.9+nobinonly
i2l.c
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00001 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
00002 /* ***** BEGIN LICENSE BLOCK *****
00003  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
00004  *
00005  * The contents of this file are subject to the Mozilla Public License Version
00006  * 1.1 (the "License"); you may not use this file except in compliance with
00007  * the License. You may obtain a copy of the License at
00008  * http://www.mozilla.org/MPL/
00009  *
00010  * Software distributed under the License is distributed on an "AS IS" basis,
00011  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
00012  * for the specific language governing rights and limitations under the
00013  * License.
00014  *
00015  * The Original Code is the Netscape Portable Runtime (NSPR).
00016  *
00017  * The Initial Developer of the Original Code is
00018  * Netscape Communications Corporation.
00019  * Portions created by the Initial Developer are Copyright (C) 1998-2000
00020  * the Initial Developer. All Rights Reserved.
00021  *
00022  * Contributor(s):
00023  *
00024  * Alternatively, the contents of this file may be used under the terms of
00025  * either the GNU General Public License Version 2 or later (the "GPL"), or
00026  * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
00027  * in which case the provisions of the GPL or the LGPL are applicable instead
00028  * of those above. If you wish to allow use of your version of this file only
00029  * under the terms of either the GPL or the LGPL, and not to allow others to
00030  * use your version of this file under the terms of the MPL, indicate your
00031  * decision by deleting the provisions above and replace them with the notice
00032  * and other provisions required by the GPL or the LGPL. If you do not delete
00033  * the provisions above, a recipient may use your version of this file under
00034  * the terms of any one of the MPL, the GPL or the LGPL.
00035  *
00036  * ***** END LICENSE BLOCK ***** */
00037 
00038 #include <stdlib.h>
00039 
00040 #include "prio.h"
00041 #include "prinit.h"
00042 #include "prprf.h"
00043 #include "prlong.h"
00044 
00045 #include "plerror.h"
00046 #include "plgetopt.h"
00047 
00048 typedef union Overlay_i
00049 {
00050     PRInt32 i;
00051     PRInt64 l;
00052 } Overlay_i;
00053 
00054 typedef union Overlay_u
00055 {
00056     PRUint32 i;
00057     PRUint64 l;
00058 } Overlay_u;
00059 
00060 static PRFileDesc *err = NULL;
00061 
00062 static void Help(void)
00063 {
00064     PR_fprintf(err, "Usage: -i n | -u n | -h\n");
00065     PR_fprintf(err, "\t-i n treat following number as signed integer\n");
00066     PR_fprintf(err, "\t-u n treat following number as unsigned integer\n");
00067     PR_fprintf(err, "\t-h   This message and nothing else\n");
00068 }  /* Help */
00069 
00070 static PRIntn PR_CALLBACK RealMain(PRIntn argc, char **argv)
00071 {
00072     Overlay_i si;
00073     Overlay_u ui;
00074     PLOptStatus os;
00075     PRBool bsi = PR_FALSE, bui = PR_FALSE;
00076     PLOptState *opt = PL_CreateOptState(argc, argv, "hi:u:");
00077     err = PR_GetSpecialFD(PR_StandardError);
00078 
00079     while (PL_OPT_EOL != (os = PL_GetNextOpt(opt)))
00080     {
00081         if (PL_OPT_BAD == os) continue;
00082         switch (opt->option)
00083         {
00084         case 'i':  /* signed integer */
00085             si.i = (PRInt32)atoi(opt->value);
00086             bsi = PR_TRUE;
00087             break;
00088         case 'u':  /* unsigned */
00089             ui.i = (PRUint32)atoi(opt->value);
00090             bui = PR_TRUE;
00091             break;
00092         case 'h':  /* user wants some guidance */
00093          default:
00094             Help();  /* so give him an earful */
00095             return 2;  /* but not a lot else */
00096         }
00097     }
00098     PL_DestroyOptState(opt);
00099 
00100 #if defined(HAVE_LONG_LONG)
00101     PR_fprintf(err, "We have long long\n");
00102 #else
00103     PR_fprintf(err, "We don't have long long\n");
00104 #endif
00105 
00106     if (bsi)
00107     {
00108         PR_fprintf(err, "Converting %ld: ", si.i);
00109         LL_I2L(si.l, si.i);
00110         PR_fprintf(err, "%lld\n", si.l);
00111     }
00112 
00113     if (bui)
00114     {
00115         PR_fprintf(err, "Converting %lu: ", ui.i);
00116         LL_I2L(ui.l, ui.i);
00117         PR_fprintf(err, "%llu\n", ui.l);
00118     }
00119     return 0;
00120 
00121 }  /* main */
00122 
00123 
00124 PRIntn main(PRIntn argc, char *argv[])
00125 {
00126     PRIntn rv;
00127     
00128     PR_STDIO_INIT();
00129     rv = PR_Initialize(RealMain, argc, argv, 0);
00130     return rv;
00131 }  /* main */
00132 
00133 /* i2l.c */