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stdard.h

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  1. /* Copyright (C) 1989-2013 Free Software Foundation, Inc.
  2.  
  3. This file is part of GCC.
  4.  
  5. GCC is free software; you can redistribute it and/or modify
  6. it under the terms of the GNU General Public License as published by
  7. the Free Software Foundation; either version 3, or (at your option)
  8. any later version.
  9.  
  10. GCC is distributed in the hope that it will be useful,
  11. but WITHOUT ANY WARRANTY; without even the implied warranty of
  12. MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13. GNU General Public License for more details.
  14.  
  15. Under Section 7 of GPL version 3, you are granted additional
  16. permissions described in the GCC Runtime Library Exception, version
  17. 3.1, as published by the Free Software Foundation.
  18.  
  19. You should have received a copy of the GNU General Public License and
  20. a copy of the GCC Runtime Library Exception along with this program;
  21. see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
  22. <http://www.gnu.org/licenses/>.  */
  23.  
  24. /*
  25.  * ISO C Standard:  7.15  Variable arguments  <stdarg.h>
  26.  */
  27.  
  28. #ifndef _STDARG_H
  29. #ifndef _ANSI_STDARG_H_
  30. #ifndef __need___va_list
  31. #define _STDARG_H
  32. #define _ANSI_STDARG_H_
  33. #endif /* not __need___va_list */
  34. #undef __need___va_list
  35.  
  36. /* Define __gnuc_va_list.  */
  37.  
  38. #ifndef __GNUC_VA_LIST
  39. #define __GNUC_VA_LIST
  40. typedef __builtin_va_list __gnuc_va_list;
  41. #endif
  42.  
  43. /* Define the standard macros for the user,
  44.    if this invocation was from the user program.  */
  45. #ifdef _STDARG_H
  46.  
  47. #define va_start(v,l)   __builtin_va_start(v,l)
  48. #define va_end(v)   __builtin_va_end(v)
  49. #define va_arg(v,l) __builtin_va_arg(v,l)
  50. #if !defined(__STRICT_ANSI__) || __STDC_VERSION__ + 0 >= 199900L || defined(__GXX_EXPERIMENTAL_CXX0X__)
  51. #define va_copy(d,s)    __builtin_va_copy(d,s)
  52. #endif
  53. #define __va_copy(d,s)  __builtin_va_copy(d,s)
  54.  
  55. /* Define va_list, if desired, from __gnuc_va_list. */
  56. /* We deliberately do not define va_list when called from
  57.    stdio.h, because ANSI C says that stdio.h is not supposed to define
  58.    va_list.  stdio.h needs to have access to that data type,
  59.    but must not use that name.  It should use the name __gnuc_va_list,
  60.    which is safe because it is reserved for the implementation.  */
  61.  
  62. #ifdef _BSD_VA_LIST
  63. #undef _BSD_VA_LIST
  64. #endif
  65.  
  66. #if defined(__svr4__) || (defined(_SCO_DS) && !defined(__VA_LIST))
  67. /* SVR4.2 uses _VA_LIST for an internal alias for va_list,
  68.    so we must avoid testing it and setting it here.
  69.    SVR4 uses _VA_LIST as a flag in stdarg.h, but we should
  70.    have no conflict with that.  */
  71. #ifndef _VA_LIST_
  72. #define _VA_LIST_
  73. #ifdef __i860__
  74. #ifndef _VA_LIST
  75. #define _VA_LIST va_list
  76. #endif
  77. #endif /* __i860__ */
  78. typedef __gnuc_va_list va_list;
  79. #ifdef _SCO_DS
  80. #define __VA_LIST
  81. #endif
  82. #endif /* _VA_LIST_ */
  83. #else /* not __svr4__ || _SCO_DS */
  84.  
  85. /* The macro _VA_LIST_ is the same thing used by this file in Ultrix.
  86.    But on BSD NET2 we must not test or define or undef it.
  87.    (Note that the comments in NET 2's ansi.h
  88.    are incorrect for _VA_LIST_--see stdio.h!)  */
  89. #if !defined (_VA_LIST_) || defined (__BSD_NET2__) || defined (____386BSD____) || defined (__bsdi__) || defined (__sequent__) || defined (__FreeBSD__) || defined(WINNT)
  90. /* The macro _VA_LIST_DEFINED is used in Windows NT 3.5  */
  91. #ifndef _VA_LIST_DEFINED
  92. /* The macro _VA_LIST is used in SCO Unix 3.2.  */
  93. #ifndef _VA_LIST
  94. /* The macro _VA_LIST_T_H is used in the Bull dpx2  */
  95. #ifndef _VA_LIST_T_H
  96. /* The macro __va_list__ is used by BeOS.  */
  97. #ifndef __va_list__
  98. typedef __gnuc_va_list va_list;
  99. #endif /* not __va_list__ */
  100. #endif /* not _VA_LIST_T_H */
  101. #endif /* not _VA_LIST */
  102. #endif /* not _VA_LIST_DEFINED */
  103. #if !(defined (__BSD_NET2__) || defined (____386BSD____) || defined (__bsdi__) || defined (__sequent__) || defined (__FreeBSD__))
  104. #define _VA_LIST_
  105. #endif
  106. #ifndef _VA_LIST
  107. #define _VA_LIST
  108. #endif
  109. #ifndef _VA_LIST_DEFINED
  110. #define _VA_LIST_DEFINED
  111. #endif
  112. #ifndef _VA_LIST_T_H
  113. #define _VA_LIST_T_H
  114. #endif
  115. #ifndef __va_list__
  116. #define __va_list__
  117. #endif
  118.  
  119. #endif /* not _VA_LIST_, except on certain systems */
  120.  
  121. #endif /* not __svr4__ */
  122.  
  123. #endif /* _STDARG_H */
  124.  
  125. #endif /* not _ANSI_STDARG_H_ */
  126. #endif /* not _STDARG_H */
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