stdarg.h

Go to the documentation of this file.

/*-
 * Copyright (c) 1991, 1993
 *      The Regents of the University of California.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *      This product includes software developed by the University of
 *      California, Berkeley and its contributors.
 * 4. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 *      @(#)stdarg.h    8.1 (Berkeley) 6/10/93
 */
#ifndef __MACHDEP_STDARG_H__
#define __MACHDEP_STDARG_H__    1

#if __GNUC_PREREQ__(2, 96) && !__PROGRAM_CPROTO__
typedef __builtin_va_list va_list; /* GCC built-in type */
#else
typedef char * va_list;
#endif
 
#if __GNUC_PREREQ__(2, 96) && !__PROGRAM_CPROTO__
#define va_start(ap, last)      __builtin_stdarg_start((ap), (last))
#define va_arg                  __builtin_va_arg
#define va_end                  __builtin_va_end
#define __va_copy(dest, src)    __builtin_va_copy((dest), (src))
#else
#define __va_size(type) \
        (((sizeof(type) + sizeof(long) - 1) / sizeof(long)) * sizeof(long))

#define va_start(ap, last) \
        ((ap) = (va_list)__builtin_next_arg(last))

#define va_arg(ap, type) \
        (*(type *)(void *)((ap) += __va_size(type), (ap) - __va_size(type)))

#define va_end(ap)      

#define __va_copy(dest, src)    ((dest) = (src))
#endif

#define va_copy(dest, src)      __va_copy((dest), (src))

#endif

---