include/iso/stdarg_c99.h

   1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License, Version 1.0 only
   6  * (the "License").  You may not use this file except in compliance
   7  * with the License.
   8  *
   9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
  10  * or http://www.opensolaris.org/os/licensing.
  11  * See the License for the specific language governing permissions
  12  * and limitations under the License.
  13  *
  14  * When distributing Covered Code, include this CDDL HEADER in each
  15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  16  * If applicable, add the following below this CDDL HEADER, with the
  17  * fields enclosed by brackets "[]" replaced with your own identifying
  18  * information: Portions Copyright [yyyy] [name of copyright owner]
  19  *
  20  * CDDL HEADER END
  21  */
  22 /*      Copyright (c) 1988 AT&T */
  23 /*        All Rights Reserved   */
  24
  25
  26 /*
  27  * Copyright 2004 Sun Microsystems, Inc.  All rights reserved.
  28  * Use is subject to license terms.
  29  */
  30
  31 #ifndef _ISO_STDARG_C99_H
  32 #define _ISO_STDARG_C99_H
  33
  34 /*
  35  * An application should not include this header directly.  Instead it
  36  * should be included only through the inclusion of other Sun headers.
  37  *
  38  * This header defines the va_copy variable argument macro, which is
  39  * new in ISO C 1999, and thus not present in ISO C 1989 and ISO C++
  40  * 1998.  Because this macro is a long-standing Solaris extension, it
  41  * is also permitted in other contexts.
  42  *
  43  * The varargs definitions within this header are defined in terms of
  44  * implementation definitions.  These implementation definitions reside
  45  * in <sys/va_list.h>.  This organization enables protected use of
  46  * the implementation by other standard headers without introducing
  47  * names into the users' namespace.
  48  */
  49
  50 #include <sys/feature_tests.h>
  51
  52 #ifdef  __cplusplus
  53 extern "C" {
  54 #endif
  55
  56 /*
  57  * va_copy was initially a Solaris extension to provide a portable
  58  * way to perform a variable argument list ``bookmarking'' function.
  59  * It is now specified in the ISO/IEC 9899:1999 standard.
  60  */
  61 #if defined(__EXTENSIONS__) || defined(_STDC_C99) || \
  62         (!defined(_STRICT_STDC) && !defined(__XOPEN_OR_POSIX)) || \
  63         defined(_XPG6)
  64
  65 #define va_copy(to, from)       __va_copy(to, from)
  66
  67 #endif  /* defined(__EXTENSIONS__) || defined(_STDC_C99)... */
  68
  69 #ifdef  __cplusplus
  70 }
  71 #endif
  72
  73 #endif  /* _ISO_STDARG_C99_H */