0b1c60eea2
Thanks Michael Forney for reporting this! We cannot use identifiers beginning with an underscore, says the C99-standard, section 7.1.3: "All identifiers that begin with an underscore are always reserved for use as identifiers with file scope in both the ordinary and tag name spaces." We go around this by putting the underscore at the end.
49 lines
2.4 KiB
C
49 lines
2.4 KiB
C
/*
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* ISC-License
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*
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* Copyright 2017 Laslo Hunhold <dev@frign.de>
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*
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* Permission to use, copy, modify, and/or distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#ifndef ARG_H
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#define ARG_H
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extern char *argv0;
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/* int main(int argc, char *argv[]) */
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#define ARGBEGIN for (argv0 = *argv, *argv ? (argc--, argv++) : ((void *)0); \
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*argv && (*argv)[0] == '-' && (*argv)[1]; argc--, argv++) { \
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int i_, argused_; \
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if ((*argv)[1] == '-' && !(*argv)[2]) { \
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argc--, argv++; \
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break; \
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} \
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for (i_ = 1, argused_ = 0; (*argv)[i_]; i_++) { \
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switch((*argv)[i_])
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#define ARGEND if (argused_) { \
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if ((*argv)[i_ + 1]) { \
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break; \
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} else { \
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argc--, argv++; \
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break; \
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} \
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} \
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} \
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}
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#define ARGC() ((*argv)[i_])
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#define ARGF_(x) (((*argv)[i_ + 1]) ? (argused_ = 1, &((*argv)[i_ + 1])) : \
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(*(argv + 1)) ? (argused_ = 1, *(argv + 1)) : (x))
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#define EARGF(x) ARGF_(((x), exit(1), (char *)0))
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#define ARGF() ARGF_((char *)0)
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#endif
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