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92b3138b83
Updated dependencies: * GMP 6.2.1 * ISL 0.24 * MPL 1.2.1 * MPFR 4.1.0 The dependencies were pulled in by running the ./contrib/download_prerequisites script and then manually removing the symbolic links and archives, and renaming the directories (i.e mv isl-0.24 to isl)
170 lines
3.2 KiB
C
170 lines
3.2 KiB
C
/* Windows support code to wrap differences between different
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versions of the Microsoft C libaries.
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Copyright (C) 2021-2023 Free Software Foundation, Inc.
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This file is part of GCC.
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GCC is free software; you can redistribute it and/or modify it under
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the terms of the GNU General Public License as published by the Free
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Software Foundation; either version 3, or (at your option) any later
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version.
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GCC is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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Under Section 7 of GPL version 3, you are granted additional
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permissions described in the GCC Runtime Library Exception, version
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3.1, as published by the Free Software Foundation.
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You should have received a copy of the GNU General Public License and
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a copy of the GCC Runtime Library Exception along with this program;
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see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
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<http://www.gnu.org/licenses/>. */
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#ifdef __MINGW32__
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#include <_mingw.h>
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#endif
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#include <stdio.h>
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/* The D runtime library defines stdin, stdout, and stderr as extern(C) symbols
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in the core.stdc.stdio module, and require initializing at start-up. */
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__attribute__((weakref ("stdin")))
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static FILE *core_stdc_stdin;
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__attribute__((weakref ("stdout")))
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static FILE *core_stdc_stdout;
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__attribute__((weakref ("stderr")))
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static FILE *core_stdc_stderr;
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/* Set to 1 if runtime is using libucrt.dll. */
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unsigned char msvcUsesUCRT;
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void
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init_msvc (void)
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{
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core_stdc_stdin = stdin;
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core_stdc_stdout = stdout;
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core_stdc_stderr = stderr;
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#if __MSVCRT_VERSION__ >= 0xE00
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msvcUsesUCRT = 1;
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#endif
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}
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/* Phobos std.stdio module assumes these functions are present at link time,
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and not absent or macros. */
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#ifdef _fgetc_nolock
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#undef _fgetc_nolock
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int
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_fgetc_nolock (FILE *fp)
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{
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fp->_cnt--;
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if (fp->_cnt >= 0)
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{
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const int c = *fp->_ptr;
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fp->_ptr++;
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return c & 0xff;
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}
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else
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return _filbuf (fp);
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}
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#endif /* _fgetc_nolock */
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#ifdef _fputc_nolock
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#undef _fputc_nolock
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int
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_fputc_nolock (int c, FILE *fp)
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{
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fp->_cnt--;
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if (fp->_cnt >= 0)
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{
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*fp->_ptr = (char) c;
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fp->_ptr++;
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return c & 0xff;
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}
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else
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return _flsbuf (c, fp);
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}
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#endif /* _fputc_nolock */
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#ifdef rewind
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#undef rewind
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void
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rewind (FILE *fp)
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{
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fseek (fp, 0, SEEK_SET);
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fp->_flag &= ~_IOERR;
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}
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#endif /* rewind */
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#ifdef clearerr
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#undef clearerr
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void
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clearerr (FILE *fp)
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{
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fp->_flag &= ~(_IOERR | _IOEOF);
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}
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#endif /* clearerr */
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#ifdef feof
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#undef feof
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int
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feof (FILE *fp)
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{
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return fp->_flag & _IOEOF;
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}
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#endif /* feof */
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#ifdef ferror
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#undef ferror
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int
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ferror (FILE *fp)
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{
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return fp->_flag & _IOERR;
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}
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#endif /* ferror */
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#ifdef fileno
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#undef fileno
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int
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fileno (FILE *fp)
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{
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return fp->_file;
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}
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#endif /* fileno */
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/* Phobos std.stdio module has a dependency on the UCRT library, so provide
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stubs that forward to the nearest equivalent. */
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#if __MSVCRT_VERSION__ < 0x800
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wint_t
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_fgetwc_nolock (FILE *fp)
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{
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return fgetwc (fp);
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}
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wint_t
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_fputwc_nolock (wchar_t c, FILE *fp)
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{
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return fputwc(c, fp);
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}
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#endif /* __MSVCRT_VERSION__ < 0x800*/
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