зеркало из https://github.com/mozilla/gecko-dev.git
104 строки
2.4 KiB
C
104 строки
2.4 KiB
C
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include <stdlib.h>
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#include "prio.h"
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#include "prinit.h"
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#include "prprf.h"
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#include "prlong.h"
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#include "plerror.h"
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#include "plgetopt.h"
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typedef union Overlay_i
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{
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PRInt32 i;
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PRInt64 l;
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} Overlay_i;
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typedef union Overlay_u
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{
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PRUint32 i;
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PRUint64 l;
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} Overlay_u;
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static PRFileDesc *err = NULL;
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static void Help(void)
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{
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PR_fprintf(err, "Usage: -i n | -u n | -h\n");
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PR_fprintf(err, "\t-i n treat following number as signed integer\n");
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PR_fprintf(err, "\t-u n treat following number as unsigned integer\n");
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PR_fprintf(err, "\t-h This message and nothing else\n");
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} /* Help */
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static PRIntn PR_CALLBACK RealMain(PRIntn argc, char **argv)
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{
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Overlay_i si;
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Overlay_u ui;
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PLOptStatus os;
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PRBool bsi = PR_FALSE, bui = PR_FALSE;
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PLOptState *opt = PL_CreateOptState(argc, argv, "hi:u:");
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err = PR_GetSpecialFD(PR_StandardError);
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while (PL_OPT_EOL != (os = PL_GetNextOpt(opt)))
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{
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if (PL_OPT_BAD == os) {
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continue;
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}
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switch (opt->option)
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{
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case 'i': /* signed integer */
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si.i = (PRInt32)atoi(opt->value);
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bsi = PR_TRUE;
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break;
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case 'u': /* unsigned */
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ui.i = (PRUint32)atoi(opt->value);
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bui = PR_TRUE;
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break;
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case 'h': /* user wants some guidance */
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default:
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Help(); /* so give him an earful */
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return 2; /* but not a lot else */
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}
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}
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PL_DestroyOptState(opt);
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#if defined(HAVE_LONG_LONG)
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PR_fprintf(err, "We have long long\n");
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#else
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PR_fprintf(err, "We don't have long long\n");
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#endif
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if (bsi)
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{
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PR_fprintf(err, "Converting %ld: ", si.i);
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LL_I2L(si.l, si.i);
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PR_fprintf(err, "%lld\n", si.l);
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}
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if (bui)
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{
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PR_fprintf(err, "Converting %lu: ", ui.i);
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LL_I2L(ui.l, ui.i);
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PR_fprintf(err, "%llu\n", ui.l);
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}
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return 0;
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} /* main */
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int main(int argc, char **argv)
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{
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PRIntn rv;
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PR_STDIO_INIT();
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rv = PR_Initialize(RealMain, argc, argv, 0);
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return rv;
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} /* main */
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/* i2l.c */
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