Danylo Lytovchenko
50 righe
1.6 KiB
C++
50 righe
1.6 KiB
C++
/* Copyright (c) 2010 - 2021 Advanced Micro Devices, Inc.
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE. */
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#include "getopt.h"
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#include <string.h>
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char* optarg = nullptr;
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int optind = 1;
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int getopt(int argc, char* const argv[], const char* optstring) {
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if ((optind >= argc) || (argv[optind][0] != '-') || (argv[optind][0] == 0)) {
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return -1;
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}
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int opt = argv[optind][1];
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const char* p = strchr(optstring, opt);
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if (p == nullptr) {
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return '?';
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}
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if (p[1] == ':') {
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optind++;
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if (optind >= argc) {
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return '?';
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}
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optarg = argv[optind];
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}
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optind++;
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return opt;
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}
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