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72 lines
2.2 KiB
C
72 lines
2.2 KiB
C
/*
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* have_fpos_pos - Determine if a __pos element in FILEPOS
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*
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* Copyright (C) 2000,2021 Landon Curt Noll
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*
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* Calc is open software; you can redistribute it and/or modify it under
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* the terms of the version 2.1 of the GNU Lesser General Public License
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* as published by the Free Software Foundation.
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*
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* Calc is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General
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* Public License for more details.
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*
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* A copy of version 2.1 of the GNU Lesser General Public License is
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* distributed with calc under the filename COPYING-LGPL. You should have
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* received a copy with calc; if not, write to Free Software Foundation, Inc.
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* Under source code control: 2000/12/17 01:23
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* File existed as early as: 2000
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*
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* chongo <was here> /\oo/\ http://www.isthe.com/chongo/
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* Share and enjoy! :-) http://www.isthe.com/chongo/tech/comp/calc/
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*/
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/*
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* If the symbol HAVE_NO_FPOS is defined, we will output nothing.
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* If the HAVE_FILEPOS_SCALAR is defined, we will output nothing.
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* If we are able to compile this program, then we must have the
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* __pos element in a non-scalar FILEPOS.
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*/
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#include <stdio.h>
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#include "have_fpos.h"
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#include "have_posscl.h"
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#include "banned.h" /* include after system header <> includes */
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int
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main(void)
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{
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#if !defined(HAVE_NO_FPOS) && !defined(HAVE_FILEPOS_SCALAR)
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fpos_t pos; /* file position */
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/* print a __pos element in fpos_t */
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printf("#undef HAVE_FPOS_POS\n");
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printf("#define HAVE_FPOS_POS 1 /* yes */\n\n");
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/* determine __pos element size */
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printf("#undef FPOS_POS_BITS\n");
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printf("#undef FPOS_POS_LEN\n");
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# if defined(FPOS_POS_BITS)
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printf("#define FPOS_POS_BITS %d\n", FPOS_POS_BITS);
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printf("#define FPOS_POS_LEN %d\n", int(FPOS_POS_BITS/8));
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# else
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printf("#define FPOS_POS_BITS %lu\n", sizeof(pos.__pos)*8);
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printf("#define FPOS_POS_LEN %lu\n", sizeof(pos.__pos));
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# endif
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#else
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/* we have no __pos element */
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printf("#undef HAVE_FPOS_POS\t/* no */\n");
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printf("#undef FPOS_POS_BITS\n");
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printf("#undef FPOS_POS_LEN\n");
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#endif
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/* exit(0); */
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return 0;
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}
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