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      1 /*===---- stdarg.h - Variable argument handling ----------------------------===
      2  *
      3  * Copyright (c) 2008 Eli Friedman
      4  *
      5  * Permission is hereby granted, free of charge, to any person obtaining a copy
      6  * of this software and associated documentation files (the "Software"), to deal
      7  * in the Software without restriction, including without limitation the rights
      8  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
      9  * copies of the Software, and to permit persons to whom the Software is
     10  * furnished to do so, subject to the following conditions:
     11  *
     12  * The above copyright notice and this permission notice shall be included in
     13  * all copies or substantial portions of the Software.
     14  *
     15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
     16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
     17  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
     18  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
     19  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
     20  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
     21  * THE SOFTWARE.
     22  *
     23  *===-----------------------------------------------------------------------===
     24  */
     25 
     26 #ifndef __STDARG_H
     27 #define __STDARG_H
     28 
     29 #ifndef _VA_LIST
     30 typedef __builtin_va_list va_list;
     31 #define _VA_LIST
     32 #endif
     33 #define va_start(ap, param) __builtin_va_start(ap, param)
     34 #define va_end(ap)          __builtin_va_end(ap)
     35 #define va_arg(ap, type)    __builtin_va_arg(ap, type)
     36 
     37 /* GCC always defines __va_copy, but does not define va_copy unless in c99 mode
     38  * or -ansi is not specified, since it was not part of C90.
     39  */
     40 #define __va_copy(d,s) __builtin_va_copy(d,s)
     41 
     42 #if __STDC_VERSION__ >= 199900L || !defined(__STRICT_ANSI__)
     43 #define va_copy(dest, src)  __builtin_va_copy(dest, src)
     44 #endif
     45 
     46 /* Hack required to make standard headers work, at least on Ubuntu */
     47 #define __GNUC_VA_LIST 1
     48 typedef __builtin_va_list __gnuc_va_list;
     49 
     50 #endif /* __STDARG_H */
     51