vadefs.h revision 341825 
1/* ===-------- vadefs.h ---------------------------------------------------===
2 *
3 * Permission is hereby granted, free of charge, to any person obtaining a copy
4 * of this software and associated documentation files (the "Software"), to deal
5 * in the Software without restriction, including without limitation the rights
6 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
7 * copies of the Software, and to permit persons to whom the Software is
8 * furnished to do so, subject to the following conditions:
9 *
10 * The above copyright notice and this permission notice shall be included in
11 * all copies or substantial portions of the Software.
12 *
13 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
14 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
15 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
16 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
17 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
18 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
19 * THE SOFTWARE.
20 *
21 *===-----------------------------------------------------------------------===
22 */
23
24/* Only include this if we are aiming for MSVC compatibility. */
25#ifndef _MSC_VER
26#include_next <vadefs.h>
27#else
28
29#ifndef __clang_vadefs_h
30#define __clang_vadefs_h
31
32#include_next <vadefs.h>
33
34/* Override macros from vadefs.h with definitions that work with Clang. */
35#ifdef _crt_va_start
36#undef _crt_va_start
37#define _crt_va_start(ap, param) __builtin_va_start(ap, param)
38#endif
39#ifdef _crt_va_end
40#undef _crt_va_end
41#define _crt_va_end(ap)          __builtin_va_end(ap)
42#endif
43#ifdef _crt_va_arg
44#undef _crt_va_arg
45#define _crt_va_arg(ap, type)    __builtin_va_arg(ap, type)
46#endif
47
48/* VS 2015 switched to double underscore names, which is an improvement, but now
49 * we have to intercept those names too.
50 */
51#ifdef __crt_va_start
52#undef __crt_va_start
53#define __crt_va_start(ap, param) __builtin_va_start(ap, param)
54#endif
55#ifdef __crt_va_end
56#undef __crt_va_end
57#define __crt_va_end(ap)          __builtin_va_end(ap)
58#endif
59#ifdef __crt_va_arg
60#undef __crt_va_arg
61#define __crt_va_arg(ap, type)    __builtin_va_arg(ap, type)
62#endif
63
64#endif
65#endif
66