stdarg.h
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上传日期:2013-04-11
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操作系统开发
开发平台:
Visual C++
- /***
- *stdarg.h - defines ANSI-style macros for variable argument functions
- *
- * Copyright (c) 1985-1988, Microsoft Corporation. All rights reserved.
- *
- *Purpose:
- * This file defines ANSI-style macros for accessing arguments
- * of functions which take a variable number of arguments.
- * [ANSI]
- *
- *******************************************************************************/
- #ifndef _VA_LIST_DEFINED
- typedef char *va_list;
- #define _VA_LIST_DEFINED
- #endif
- #define va_start(ap,v) ap = (va_list)&v + sizeof(v)
- #define va_arg(ap,t) ((t *)(ap += sizeof(t)))[-1]
- #define va_end(ap) ap = NULL