mirror of
https://gitflic.ru/project/erthink/libmdbx.git
synced 2026-07-14 18:46:08 +00:00
Леонид Юрьев (Leonid Yuriev)
0d7c1243f8
2026-01-28 mdbx: extract `wingetopt` into separated amalgamated file because of different licence. 2026-01-28 mdbx-cmake: update headed notice. 2026-01-28 mdbx: add `amalgam.in` header. 2026-01-28 mdbx-make: fix LDFLAGS for tools. 2026-01-28 mdbx-make: filter-out 'pragma once' from C++-probe. 2026-01-28 mdbx-test: drop unused code. 2026-01-28 mdbx: deduplicate/reduce amalgamated source code. 2026-01-28 mdbx: refine 64x64-to-128 multiplication. 2026-01-27 mdbx-make: cutoff useless C-portion of code from amalgamated `mdbx.c++`
112 lines
2.7 KiB
C
112 lines
2.7 KiB
C
/*
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* POSIX getopt for Windows
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*
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* AT&T Public License
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*
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* Code given out at the 1985 UNIFORUM conference in Dallas.
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*/
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#ifndef _WINGETOPT_H_
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#define _WINGETOPT_H_
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#ifdef __cplusplus
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extern "C" {
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#endif
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extern int opterr;
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extern int optind;
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extern int optopt;
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extern char *optarg;
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int getopt(int argc, char *const argv[], const char *optstring);
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#ifdef __cplusplus
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}
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#endif
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#endif /* _GETOPT_H_ */
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/*
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* POSIX getopt for Windows
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*
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* AT&T Public License
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*
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* Code given out at the 1985 UNIFORUM conference in Dallas.
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*/
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/* Microsoft compiler generates a lot of warning for self includes... */
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#ifdef _MSC_VER
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#pragma warning(push, 1)
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#pragma warning(disable : 4548) /* expression before comma has no effect; \
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expected expression with side - effect */
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#pragma warning(disable : 4530) /* C++ exception handler used, but unwind \
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* semantics are not enabled. Specify /EHsc */
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#pragma warning(disable : 4577) /* 'noexcept' used with no exception handling \
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* mode specified; termination on exception is \
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* not guaranteed. Specify /EHsc */
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#if !defined(_CRT_SECURE_NO_WARNINGS)
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#define _CRT_SECURE_NO_WARNINGS
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#endif
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#endif /* _MSC_VER (warnings) */
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#include <stdio.h>
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#include <string.h>
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#ifdef _MSC_VER
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#pragma warning(pop)
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#endif
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/*----------------------------------------------------------------------------*/
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#ifndef NULL
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#define NULL 0
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#endif
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#ifndef EOF
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#define EOF (-1)
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#endif
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int optind = 1;
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int optopt;
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char *optarg;
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int getopt(int argc, char *const argv[], const char *opts) {
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static int sp = 1;
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int c;
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const char *cp;
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if (sp == 1) {
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if (optind >= argc || argv[optind][0] != '-' || argv[optind][1] == '\0')
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return EOF;
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else if (strcmp(argv[optind], "--") == 0) {
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optind++;
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return EOF;
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}
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}
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optopt = c = argv[optind][sp];
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if (c == ':' || (cp = strchr(opts, c)) == NULL) {
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fprintf(stderr, "%s: %s -- %c\n", argv[0], "illegal option", c);
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if (argv[optind][++sp] == '\0') {
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optind++;
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sp = 1;
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}
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return '?';
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}
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if (*++cp == ':') {
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if (argv[optind][sp + 1] != '\0')
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optarg = &argv[optind++][sp + 1];
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else if (++optind >= argc) {
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fprintf(stderr, "%s: %s -- %c\n", argv[0], "option requires an argument", c);
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sp = 1;
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return '?';
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} else
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optarg = argv[optind++];
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sp = 1;
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} else {
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if (argv[optind][++sp] == '\0') {
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sp = 1;
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optind++;
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}
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optarg = NULL;
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}
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return c;
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}
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