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52 lines
1.6 KiB
C
52 lines
1.6 KiB
C
/*
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* Variable argument definitions
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*
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* Copyright 2022 Jacek Caban
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#ifndef _INC_VADEFS
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#define _INC_VADEFS
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#ifdef __cplusplus
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#define _ADDRESSOF(v) (&reinterpret_cast<const char &>(v))
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#else
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#define _ADDRESSOF(v) (&(v))
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#endif
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#if defined(__GNUC__) || defined(__clang__)
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typedef __builtin_va_list va_list;
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#define _crt_va_start(v,l) __builtin_va_start(v,l)
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#define _crt_va_arg(v,l) __builtin_va_arg(v,l)
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#define _crt_va_end(v) __builtin_va_end(v)
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#define _crt_va_copy(d,s) __builtin_va_copy(d,s)
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#else
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typedef char *va_list;
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#if defined(__i386__)
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#define _INTSIZEOF(n) ((sizeof(n) + sizeof(int) - 1) & ~(sizeof(int) - 1))
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#define _crt_va_start(v,l) ((v) = (va_list)_ADDRESSOF(l) + _INTSIZEOF(l))
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#define _crt_va_arg(v,l) (*(l *)(((v) += _INTSIZEOF(l)) - _INTSIZEOF(l)))
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#define _crt_va_end(v) ((v) = (va_list)0)
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#define _crt_va_copy(d,s) ((d) = (s))
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#endif
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#endif
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#endif /* _INC_VADEFS */
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