The Tor Browser: nsprpub/pr/tests/i2l.c@4ab42b5ab56c

     1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */

     2 /* This Source Code Form is subject to the terms of the Mozilla Public

     3  * License, v. 2.0. If a copy of the MPL was not distributed with this

     4  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

     6 #include <stdlib.h>

     8 #include "prio.h"

     9 #include "prinit.h"

    10 #include "prprf.h"

    11 #include "prlong.h"

    13 #include "plerror.h"

    14 #include "plgetopt.h"

    16 typedef union Overlay_i

    17 {

    18     PRInt32 i;

    19     PRInt64 l;

    20 } Overlay_i;

    22 typedef union Overlay_u

    23 {

    24     PRUint32 i;

    25     PRUint64 l;

    26 } Overlay_u;

    28 static PRFileDesc *err = NULL;

    30 static void Help(void)

    31 {

    32     PR_fprintf(err, "Usage: -i n | -u n | -h\n");

    33     PR_fprintf(err, "\t-i n treat following number as signed integer\n");

    34     PR_fprintf(err, "\t-u n treat following number as unsigned integer\n");

    35     PR_fprintf(err, "\t-h   This message and nothing else\n");

    36 }  /* Help */

    38 static PRIntn PR_CALLBACK RealMain(PRIntn argc, char **argv)

    39 {

    40     Overlay_i si;

    41     Overlay_u ui;

    42     PLOptStatus os;

    43     PRBool bsi = PR_FALSE, bui = PR_FALSE;

    44     PLOptState *opt = PL_CreateOptState(argc, argv, "hi:u:");

    45     err = PR_GetSpecialFD(PR_StandardError);

    47     while (PL_OPT_EOL != (os = PL_GetNextOpt(opt)))

    48     {

    49         if (PL_OPT_BAD == os) continue;

    50         switch (opt->option)

    51         {

    52         case 'i':  /* signed integer */

    53             si.i = (PRInt32)atoi(opt->value);

    54             bsi = PR_TRUE;

    55             break;

    56         case 'u':  /* unsigned */

    57             ui.i = (PRUint32)atoi(opt->value);

    58             bui = PR_TRUE;

    59             break;

    60         case 'h':  /* user wants some guidance */

    61          default:

    62             Help();  /* so give him an earful */

    63             return 2;  /* but not a lot else */

    64         }

    65     }

    66     PL_DestroyOptState(opt);

    68 #if defined(HAVE_LONG_LONG)

    69     PR_fprintf(err, "We have long long\n");

    70 #else

    71     PR_fprintf(err, "We don't have long long\n");

    72 #endif

    74     if (bsi)

    75     {

    76         PR_fprintf(err, "Converting %ld: ", si.i);

    77         LL_I2L(si.l, si.i);

    78         PR_fprintf(err, "%lld\n", si.l);

    79     }

    81     if (bui)

    82     {

    83         PR_fprintf(err, "Converting %lu: ", ui.i);

    84         LL_I2L(ui.l, ui.i);

    85         PR_fprintf(err, "%llu\n", ui.l);

    86     }

    87     return 0;

    89 }  /* main */

    92 int main(int argc, char **argv)

    93 {

    94     PRIntn rv;

    96     PR_STDIO_INIT();

    97     rv = PR_Initialize(RealMain, argc, argv, 0);

    98     return rv;

    99 }  /* main */

   101 /* i2l.c */

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