刚和朋友探讨了编译过程的宏扩展，联想到以前自己在fedora上用g++的-E指令试过，现在在windows上再来一遍。
cpp文件：a.cpp
#include <stdio.h>
int main()
{
printf("a");
return 0;
}
通过cmd进入g++所在目录并执行指令： g++ a.cpp -E
发现程序之间将扩展后的内容打印了出来，于是将其写入文件： g++ a.cpp -E a.out
得到a.out文件如下：
# 1 "a.cpp"
# 1 "<built-in>"
# 1 "<command-line>"
# 1 "a.cpp"
# 1 "d:\\qtsdk\\mingw\\bin\\../lib/gcc/mingw32/4.4.0/http://www.cnblogs.com/http://www.cnblogs.com/include/stdio.h" 1 3
# 19 "d:\\qtsdk\\mingw\\bin\\../lib/gcc/mingw32/4.4.0/http://www.cnblogs.com/http://www.cnblogs.com/include/stdio.h" 3
# 1 "d:\\qtsdk\\mingw\\bin\\../lib/gcc/mingw32/4.4.0/http://www.cnblogs.com/http://www.cnblogs.com/include/_mingw.h" 1 3
# 31 "d:\\qtsdk\\mingw\\bin\\../lib/gcc/mingw32/4.4.0/http://www.cnblogs.com/http://www.cnblogs.com/include/_mingw.h" 3
# 32 "d:\\qtsdk\\mingw\\bin\\../lib/gcc/mingw32/4.4.0/http://www.cnblogs.com/http://www.cnblogs.com/include/_mingw.h" 3
# 20 "d:\\qtsdk\\mingw\\bin\\../lib/gcc/mingw32/4.4.0/http://www.cnblogs.com/http://www.cnblogs.com/include/stdio.h" 2 3
# 1 "d:\\qtsdk\\mingw\\bin\\../lib/gcc/mingw32/4.4.0/include/stddef.h" 1 3 4
# 211 "d:\\qtsdk\\mingw\\bin\\../lib/gcc/mingw32/4.4.0/include/stddef.h" 3 4
typedef unsigned int size_t;
# 352 "d:\\qtsdk\\mingw\\bin\\../lib/gcc/mingw32/4.4.0/include/stddef.h" 3 4
typedef short unsigned int wint_t;
# 27 "d:\\qtsdk\\mingw\\bin\\../lib/gcc/mingw32/4.4.0/http://www.cnblogs.com/http://www.cnblogs.com/include/stdio.h" 2 3
# 1 "d:\\qtsdk\\mingw\\bin\\../lib/gcc/mingw32/4.4.0/include/stdarg.h" 1 3 4
# 40 "d:\\qtsdk\\mingw\\bin\\../lib/gcc/mingw32/4.4.0/include/stdarg.h" 3 4
typedef __builtin_va_list __gnuc_va_list;
# 29 "d:\\qtsdk\\mingw\\bin\\../lib/gcc/mingw32/4.4.0/http://www.cnblogs.com/http://www.cnblogs.com/include/stdio.h" 2 3
# 129 "d:\\qtsdk\\mingw\\bin\\../lib/gcc/mingw32/4.4.0/http://www.cnblogs.com/http://www.cnblogs.com/include/stdio.h" 3
typedef struct _iobuf
{
char* _ptr;
int _cnt;
char* _base;
int _flag;
int _file;
int _charbuf;
int _bufsiz;
char* _tmpfname;
} FILE;
# 154 "d:\\qtsdk\\mingw\\bin\\../lib/gcc/mingw32/4.4.0/http://www.cnblogs.com/http://www.cnblogs.com/include/stdio.h" 3
extern __attribute__ ((__dllimport__)) FILE _iob[];
# 163 "d:\\qtsdk\\mingw\\bin\\../lib/gcc/mingw32/4.4.0/http://www.cnblogs.com/http://www.cnblogs.com/include/stdio.h" 3
extern "C" {
FILE* __attribute__((__cdecl__)) __attribute__ ((__nothrow__)) fopen (const char*, const char*);
FILE* __attribute__((__cdecl__)) __attribute__ ((__nothrow__)) freopen (const char*, const char*, FILE*);
int __attribute__((__cdecl__)) __attribute__ ((__nothrow__)) fflush (FILE*);
int __attribute__((__cdecl__)) __attribute__ ((__nothrow__)) fclose (FILE*);
int __attribute__((__cdecl__)) __attribute__ ((__nothrow__)) remove (const char*);
int __attribute__((__cdecl__)) __attribute__ ((__nothrow__)) rename (const char*, const char*);
FILE* __attribute__((__cdecl__)) __attribute__ ((__nothrow__)) tmpfile (void);
char* __attribute__((__cdecl__)) __attribute__ ((__nothrow__)) tmpnam (char*);
char* __attribute__((__cdecl__)) __attribute__ ((__nothrow__)) _tempnam (const char*, const char*);
int __attribute__((__cdecl__)) __attribute__ ((__nothrow__)) _rmtmp(void);
int __attribute__((__cdecl__)) __attribute__ ((__nothrow__)) _unlink (const char*);
char* __attribute__((__cdecl__)) __attribute__ ((__nothrow__)) tempnam (const char*, const char*);
int __attribute__((__cdecl__)) __attribute__ ((__nothrow__)) rmtmp(void);
int __attribute__((__cdecl__)) __attribute__ ((__nothrow__)) unlink (const char*);
int __attribute__((__cdecl__)) __attribute__ ((__nothrow__)) setvbuf (FILE*, char*, int, size_t);
void __attribute__((__cdecl__)) __attribute__ ((__nothrow__)) setbuf (FILE*, char*);
# 204 "d:\\qtsdk\\mingw\\bin\\../lib/gcc/mingw32/4.4.0/http://www.cnblogs.com/http://www.cnblogs.com/include/stdio.h" 3
extern int __attribute__((__cdecl__)) __attribute__ ((__nothrow__)) __mingw_fprintf(FILE*, const char*, ...);
extern int __attribute__((__cdecl__)) __attribute__ ((__nothrow__)) __mingw_printf(const char*, ...);
extern int __attribute__((__cdecl__)) __attribute__ ((__nothrow__)) __mingw_sprintf(char*, const char*, ...);
extern int __attribute__((__cdecl__)) __attribute__ ((__nothrow__)) __mingw_snprintf(char*, size_t, const char*, ...);
extern int __attribute__((__cdecl__)) __attribute__ ((__nothrow__)) __mingw_vfprintf(FILE*, const char*, __gnuc_va_list);
extern int __attribute__((__cdecl__)) __attribute__ ((__nothrow__)) __mingw_vprintf(const char*, __gnuc_va_list);
extern int __attribute__((__cdecl__)) __attribute__ ((__nothrow__)) __mingw_vsprintf(char*, const char*, __gnuc_va_list);
extern int __attribute__((__cdecl__)) __attribute__ ((__nothrow__)) __mingw_vsnprintf(char*, size_t, const char*, __gnuc_va_list);
# 293 "d:\\qtsdk\\mingw\\bin\\../lib/gcc/mingw32/4.4.0/http://www.cnblogs.com/http://www.cnblogs.com/include/stdio.h" 3
int __attribute__((__cdecl__)) __attribute__ ((__nothrow__)) fprintf (FILE*, const char*, ...);
int __attribute__((__cdecl__)) __attribute__ ((__nothrow__)) printf (const char*, ...);
int __attribute__((__cdecl__)) __attribute__ ((__nothrow__)) sprintf (char*, const char*, ...);
int __attribute__((__cdecl__)) __attribute__ ((__nothrow__)) vfprintf (FILE*, const char*, __gnuc_va_list);
int __attribute__((__cdecl__)) __attribute__ ((__nothrow__)) vprintf (const char*, __gnuc_va_list);
int __attribute__((__cdecl__)) __attribute__ ((__nothrow__)) vsprintf (char*, const char*, __gnuc_va_list);
# 308 "d:\\qtsdk\\mingw\\bin\\../lib/gcc/mingw32/4.4.0/http://www.cnblogs.com/http://www.cnblogs.com/include/stdio.h" 3
int __attribute__((__cdecl__)) __attribute__ ((__nothrow__)) __msvcrt_fprintf(FILE*, const char*, ...);
int __attribute__((__cdecl__)) __attribute__ ((__nothrow__)) __msvcrt_printf(const char*, ...);
int __attribute__((__cdecl__)) __attribute__ ((__nothrow__)) __msvcrt_sprintf(char*, const char*, ...);
int __attribute__((__cdecl__)) __attribute__ ((__nothrow__)) __msvcrt_vfprintf(FILE*, const char*, __gnuc_va_list);
int __attribute__((__cdecl__)) __attribute__ ((__nothrow__)) __msvcrt_vprintf(const char*, __gnuc_va_list);
int __attribute__((__cdecl__)) __attribute__ ((__nothrow__)) __msvcrt_vsprintf(char*, const char*, __gnuc_va_list);
int __attribute__((__cdecl__)) __attribute__ ((__nothrow__)) _snprintf (char*, size_t, const char*, ...);
int __attribute__((__cdecl__)) __attribute__ ((__nothrow__)) _vsnprintf (char*, size_t, const char*, __gnuc_va_list);
# 330 "d:\\qtsdk\\mingw\\bin\\../lib/gcc/mingw32/4.4.0/http://www.cnblogs.com/http://www.cnblogs.com/include/stdio.h" 3
int __attribute__((__cdecl__)) __attribute__ ((__nothrow__)) snprintf (char *, size_t, const char *, ...);
int __attribute__((__cdecl__)) __attribute__ ((__nothrow__)) vsnprintf (char *, size_t, const char *, __gnuc_va_list);
int __attribute__((__cdecl__)) __attribute__ ((__nothrow__)) vscanf (const char * __restrict__, __gnuc_va_list);
int __attribute__((__cdecl__)) __attribute__ ((__nothrow__)) vfscanf (FILE * __restrict__, const char * __restrict__,
__gnuc_va_list);
int __attribute__((__cdecl__)) __attribute__ ((__nothrow__)) vsscanf (const char * __restrict__,
const char * __restrict__, __gnuc_va_list);
int __attribute__((__cdecl__)) __attribute__ ((__nothrow__)) fscanf (FILE*, const char*, ...);
int __attribute__((__cdecl__)) __attribute__ ((__nothrow__)) scanf (const char*, ...);
int __attribute__((__cdecl__)) __attribute__ ((__nothrow__)) sscanf (const char*, const char*, ...);
int __attribute__((__cdecl__)) __attribute__ ((__nothrow__)) fgetc (FILE*);
char* __attribute__((__cdecl__)) __attribute__ ((__nothrow__)) fgets (char*, int, FILE*);
int __attribute__((__cdecl__)) __attribute__ ((__nothrow__)) fputc (int, FILE*);
int __attribute__((__cdecl__)) __attribute__ ((__nothrow__)) fputs (const char*, FILE*);
char* __attribute__((__cdecl__)) __attribute__ ((__nothrow__)) gets (char*);
int __attribute__((__cdecl__)) __attribute__ ((__nothrow__)) puts (const char*);
int __attribute__((__cdecl__)) __attribute__ ((__nothrow__)) ungetc (int, FILE*);
int __attribute__((__cdecl__)) __attribute__ ((__nothrow__)) _filbuf (FILE*);
int __attribute__((__cdecl__)) __attribute__ ((__nothrow__)) _flsbuf (int, FILE*);
inline int __attribute__((__cdecl__)) __attribute__ ((__nothrow__)) getc (FILE* __F)
{
return (--__F->_cnt >= 0)
? (int) (unsigned char) *__F->_ptr++
: _filbuf (__F);
}
inline int __attribute__((__cdecl__)) __attribute__ ((__nothrow__)) putc (int __c, FILE* __F)
{
return (--__F->_cnt >= 0)
? (int) (unsigned char) (*__F->_ptr++ = (char)__c)
: _flsbuf (__c, __F);
}
inline int __attribute__((__cdecl__)) __attribute__ ((__nothrow__)) getchar (void)
{
return (--(&_iob[0])->_cnt >= 0)
? (int) (unsigned char) *(&_iob[0])->_ptr++
: _filbuf ((&_iob[0]));
}
inline int __attribute__((__cdecl__)) __attribute__ ((__nothrow__)) putchar(int __c)
{
return (--(&_iob[1])->_cnt >= 0)
? (int) (unsigned char) (*(&_iob[1])->_ptr++ = (char)__c)
: _flsbuf (__c, (&_iob[1]));}
# 411 "d:\\qtsdk\\mingw\\bin\\../lib/gcc/mingw32/4.4.0/http://www.cnblogs.com/http://www.cnblogs.com/include/stdio.h" 3
size_t __attribute__((__cdecl__)) __attribute__ ((__nothrow__)) fread (void*, size_t, size_t, FILE*);
size_t __attribute__((__cdecl__)) __attribute__ ((__nothrow__)) fwrite (const void*, size_t, size_t, FILE*);
int __attribute__((__cdecl__)) __attribute__ ((__nothrow__)) fseek (FILE*, long, int);
long __attribute__((__cdecl__)) __attribute__ ((__nothrow__)) ftell (FILE*);
void __attribute__((__cdecl__)) __attribute__ ((__nothrow__)) rewind (FILE*);
# 454 "d:\\qtsdk\\mingw\\bin\\../lib/gcc/mingw32/4.4.0/http://www.cnblogs.com/http://www.cnblogs.com/include/stdio.h" 3
typedef long long fpos_t;
int __attribute__((__cdecl__)) __attribute__ ((__nothrow__)) fgetpos (FILE*, fpos_t*);
int __attribute__((__cdecl__)) __attribute__ ((__nothrow__)) fsetpos (FILE*, const fpos_t*);
int __attribute__((__cdecl__)) __attribute__ ((__nothrow__)) feof (FILE*);
int __attribute__((__cdecl__)) __attribute__ ((__nothrow__)) ferror (FILE*);
inline int __attribute__((__cdecl__)) __attribute__ ((__nothrow__)) feof (FILE* __F)
{ return __F->_flag & 0x0010; }
inline int __attribute__((__cdecl__)) __attribute__ ((__nothrow__)) ferror (FILE* __F)
{ return __F->_flag & 0x0020; }
void __attribute__((__cdecl__)) __attribute__ ((__nothrow__)) clearerr (FILE*);
void __attribute__((__cdecl__)) __attribute__ ((__nothrow__)) perror (const char*);
FILE* __attribute__((__cdecl__)) __attribute__ ((__nothrow__)) _popen (const char*, const char*);
int __attribute__((__cdecl__)) __attribute__ ((__nothrow__)) _pclose (FILE*);
FILE* __attribute__((__cdecl__)) __attribute__ ((__nothrow__)) popen (const char*, const char*);
int __attribute__((__cdecl__)) __attribute__ ((__nothrow__)) pclose (FILE*);
int __attribute__((__cdecl__)) __attribute__ ((__nothrow__)) _flushall (void);
int __attribute__((__cdecl__)) __attribute__ ((__nothrow__)) _fgetchar (void);
int __attribute__((__cdecl__)) __attribute__ ((__nothrow__)) _fputchar (int);
FILE* __attribute__((__cdecl__)) __attribute__ ((__nothrow__)) _fdopen (int, const char*);
int __attribute__((__cdecl__)) __attribute__ ((__nothrow__)) _fileno (FILE*);
int __attribute__((__cdecl__)) __attribute__ ((__nothrow__)) _fcloseall (void);
FILE* __attribute__((__cdecl__)) __attribute__ ((__nothrow__)) _fsopen (const char*, const char*, int);
int __attribute__((__cdecl__)) __attribute__ ((__nothrow__)) _getmaxstdio (void);
int __attribute__((__cdecl__)) __attribute__ ((__nothrow__)) _setmaxstdio (int);
# 521 "d:\\qtsdk\\mingw\\bin\\../lib/gcc/mingw32/4.4.0/http://www.cnblogs.com/http://www.cnblogs.com/include/stdio.h" 3
int __attribute__((__cdecl__)) __attribute__ ((__nothrow__)) fgetchar (void);
int __attribute__((__cdecl__)) __attribute__ ((__nothrow__)) fputchar (int);
FILE* __attribute__((__cdecl__)) __attribute__ ((__nothrow__)) fdopen (int, const char*);
int __attribute__((__cdecl__)) __attribute__ ((__nothrow__)) fileno (FILE*);
# 533 "d:\\qtsdk\\mingw\\bin\\../lib/gcc/mingw32/4.4.0/http://www.cnblogs.com/http://www.cnblogs.com/include/stdio.h" 3
# 1 "d:\\qtsdk\\mingw\\bin\\../lib/gcc/mingw32/4.4.0/http://www.cnblogs.com/http://www.cnblogs.com/include/sys/types.h" 1 3
# 21 "d:\\qtsdk\\mingw\\bin\\../lib/gcc/mingw32/4.4.0/http://www.cnblogs.com/http://www.cnblogs.com/include/sys/types.h" 3
# 1 "d:\\qtsdk\\mingw\\bin\\../lib/gcc/mingw32/4.4.0/include/stddef.h" 1 3 4
# 149 "d:\\qtsdk\\mingw\\bin\\../lib/gcc/mingw32/4.4.0/include/stddef.h" 3 4
typedef int ptrdiff_t;
# 22 "d:\\qtsdk\\mingw\\bin\\../lib/gcc/mingw32/4.4.0/http://www.cnblogs.com/http://www.cnblogs.com/include/sys/types.h" 2 3
typedef long time_t;
typedef long long __time64_t;
typedef long _off_t;
typedef _off_t off_t;
typedef unsigned int _dev_t;
typedef _dev_t dev_t;
typedef short _ino_t;
typedef _ino_t ino_t;
typedef int _pid_t;
typedef _pid_t pid_t;
typedef unsigned short _mode_t;
typedef _mode_t mode_t;
typedef int _sigset_t;
typedef _sigset_t sigset_t;
typedef long _ssize_t;
typedef _ssize_t ssize_t;
typedef long long fpos64_t;
typedef long long off64_t;
typedef unsigned int useconds_t;
# 534 "d:\\qtsdk\\mingw\\bin\\../lib/gcc/mingw32/4.4.0/http://www.cnblogs.com/http://www.cnblogs.com/include/stdio.h" 2 3
inline FILE* __attribute__((__cdecl__)) __attribute__ ((__nothrow__)) fopen64 (const char* filename, const char* mode)
{
return fopen (filename, mode);
}
int __attribute__((__cdecl__)) __attribute__ ((__nothrow__)) fseeko64 (FILE*, off64_t, int);
inline off64_t __attribute__((__cdecl__)) __attribute__ ((__nothrow__)) ftello64 (FILE * stream)
{
fpos_t pos;
if (fgetpos(stream, &pos))
return -1LL;
else
return ((off64_t) pos);
}
# 562 "d:\\qtsdk\\mingw\\bin\\../lib/gcc/mingw32/4.4.0/http://www.cnblogs.com/http://www.cnblogs.com/include/stdio.h" 3
int __attribute__((__cdecl__)) __attribute__ ((__nothrow__)) fwprintf (FILE*, const wchar_t*, ...);
int __attribute__((__cdecl__)) __attribute__ ((__nothrow__)) wprintf (const wchar_t*, ...);
int __attribute__((__cdecl__)) __attribute__ ((__nothrow__)) _snwprintf (wchar_t*, size_t, const wchar_t*, ...);
int __attribute__((__cdecl__)) __attribute__ ((__nothrow__)) vfwprintf (FILE*, const wchar_t*, __gnuc_va_list);
int __attribute__((__cdecl__)) __attribute__ ((__nothrow__)) vwprintf (const wchar_t*, __gnuc_va_list);
int __attribute__((__cdecl__)) __attribute__ ((__nothrow__)) _vsnwprintf (wchar_t*, size_t, const wchar_t*, __gnuc_va_list);
int __attribute__((__cdecl__)) __attribute__ ((__nothrow__)) fwscanf (FILE*, const wchar_t*, ...);
int __attribute__((__cdecl__)) __attribute__ ((__nothrow__)) wscanf (const wchar_t*, ...);
int __attribute__((__cdecl__)) __attribute__ ((__nothrow__)) swscanf (const wchar_t*, const wchar_t*, ...);
wint_t __attribute__((__cdecl__)) __attribute__ ((__nothrow__)) fgetwc (FILE*);
wint_t __attribute__((__cdecl__)) __attribute__ ((__nothrow__)) fputwc (wchar_t, FILE*);
wint_t __attribute__((__cdecl__)) __attribute__ ((__nothrow__)) ungetwc (wchar_t, FILE*);
int __attribute__((__cdecl__)) __attribute__ ((__nothrow__)) swprintf (wchar_t*, const wchar_t*, ...);
int __attribute__((__cdecl__)) __attribute__ ((__nothrow__)) vswprintf (wchar_t*, const wchar_t*, __gnuc_va_list);
wchar_t* __attribute__((__cdecl__)) __attribute__ ((__nothrow__)) fgetws (wchar_t*, int, FILE*);
int __attribute__((__cdecl__)) __attribute__ ((__nothrow__)) fputws (const wchar_t*, FILE*);
wint_t __attribute__((__cdecl__)) __attribute__ ((__nothrow__)) getwc (FILE*);
wint_t __attribute__((__cdecl__)) __attribute__ ((__nothrow__)) getwchar (void);
wchar_t* __attribute__((__cdecl__)) __attribute__ ((__nothrow__)) _getws (wchar_t*);
wint_t __attribute__((__cdecl__)) __attribute__ ((__nothrow__)) putwc (wint_t, FILE*);
int __attribute__((__cdecl__)) __attribute__ ((__nothrow__)) _putws (const wchar_t*);
wint_t __attribute__((__cdecl__)) __attribute__ ((__nothrow__)) putwchar (wint_t);
FILE* __attribute__((__cdecl__)) __attribute__ ((__nothrow__)) _wfdopen(int, const wchar_t *);
FILE* __attribute__((__cdecl__)) __attribute__ ((__nothrow__)) _wfopen (const wchar_t*, const wchar_t*);
FILE* __attribute__((__cdecl__)) __attribute__ ((__nothrow__)) _wfreopen (const wchar_t*, const wchar_t*, FILE*);
FILE* __attribute__((__cdecl__)) __attribute__ ((__nothrow__)) _wfsopen (const wchar_t*, const wchar_t*, int);
wchar_t* __attribute__((__cdecl__)) __attribute__ ((__nothrow__)) _wtmpnam (wchar_t*);
wchar_t* __attribute__((__cdecl__)) __attribute__ ((__nothrow__)) _wtempnam (const wchar_t*, const wchar_t*);
int __attribute__((__cdecl__)) __attribute__ ((__nothrow__)) _wrename (const wchar_t*, const wchar_t*);
int __attribute__((__cdecl__)) __attribute__ ((__nothrow__)) _wremove (const wchar_t*);
void __attribute__((__cdecl__)) __attribute__ ((__nothrow__)) _wperror (const wchar_t*);
FILE* __attribute__((__cdecl__)) __attribute__ ((__nothrow__)) _wpopen (const wchar_t*, const wchar_t*);
int __attribute__((__cdecl__)) __attribute__ ((__nothrow__)) snwprintf (wchar_t* s, size_t n, const wchar_t* format, ...);
inline int __attribute__((__cdecl__)) __attribute__ ((__nothrow__))
vsnwprintf (wchar_t* s, size_t n, const wchar_t* format, __gnuc_va_list arg)
{ return _vsnwprintf ( s, n, format, arg);}
int __attribute__((__cdecl__)) __attribute__ ((__nothrow__)) vwscanf (const wchar_t * __restrict__, __gnuc_va_list);
int __attribute__((__cdecl__)) __attribute__ ((__nothrow__)) vfwscanf (FILE * __restrict__,
const wchar_t * __restrict__, __gnuc_va_list);
int __attribute__((__cdecl__)) __attribute__ ((__nothrow__)) vswscanf (const wchar_t * __restrict__,
const wchar_t * __restrict__, __gnuc_va_list);
# 620 "d:\\qtsdk\\mingw\\bin\\../lib/gcc/mingw32/4.4.0/http://www.cnblogs.com/http://www.cnblogs.com/include/stdio.h" 3
FILE* __attribute__((__cdecl__)) __attribute__ ((__nothrow__)) wpopen (const wchar_t*, const wchar_t*);
wint_t __attribute__((__cdecl__)) __attribute__ ((__nothrow__)) _fgetwchar (void);
wint_t __attribute__((__cdecl__)) __attribute__ ((__nothrow__)) _fputwchar (wint_t);
int __attribute__((__cdecl__)) __attribute__ ((__nothrow__)) _getw (FILE*);
int __attribute__((__cdecl__)) __attribute__ ((__nothrow__)) _putw (int, FILE*);
wint_t __attribute__((__cdecl__)) __attribute__ ((__nothrow__)) fgetwchar (void);
wint_t __attribute__((__cdecl__)) __attribute__ ((__nothrow__)) fputwchar (wint_t);
int __attribute__((__cdecl__)) __attribute__ ((__nothrow__)) getw (FILE*);
int __attribute__((__cdecl__)) __attribute__ ((__nothrow__)) putw (int, FILE*);
}
# 2 "a.cpp" 2
int main()
{
printf("a");
return 0;
}
一个简单的printf()程序竟然被扩展成了如此多行。
stdio.h文件如下：
/*
* stdio.h
* This file has no copyright assigned and is placed in the Public Domain.
* This file is a part of the mingw-runtime package.
* No warranty is given; refer to the file DISCLAIMER within the package.
*
* Definitions of types and prototypes of functions for standard input and
* output.
*
* NOTE: The file manipulation functions provided by Microsoft seem to
* work with either slash (/) or backslash (\) as the directory separator.
*
*/
#ifndef _STDIO_H_
#define _STDIO_H_
/* All the headers include this file. */
#include <_mingw.h>
#ifndef RC_INVOKED
#define __need_size_t
#define __need_NULL
#define __need_wchar_t
#define __need_wint_t
#include <stddef.h>
#define __need___va_list
#include <stdarg.h>
#endif /* Not RC_INVOKED */
/* Flags for the iobuf structure */
#define _IOREAD 1 /* currently reading */
#define _IOWRT 2 /* currently writing */
#define _IORW 0x0080 /* opened as "r+w" */
/*
* The three standard file pointers provided by the run time library.
* NOTE: These will go to the bit-bucket silently in GUI applications!
*/
#define STDIN_FILENO 0
#define STDOUT_FILENO 1
#define STDERR_FILENO 2
/* Returned by various functions on end of file condition or error. */
#define EOF (-1)
/*
* The maximum length of a file name. You should use GetVolumeInformation
* instead of this constant. But hey, this works.
* Also defined in io.h.
*/
#ifndef FILENAME_MAX
#define FILENAME_MAX (260)
#endif
/*
* The maximum number of files that may be open at once. I have set this to
* a conservative number. The actual value may be higher.
*/
#define FOPEN_MAX (20)
/* After creating this many names, tmpnam and tmpfile return NULL */
#define TMP_MAX 32767
/*
* Tmpnam, tmpfile and, sometimes, _tempnam try to create
* temp files in the root directory of the current drive
* (not in pwd, as suggested by some older MS doc's).
* Redefining these macros does not effect the CRT functions.
*/
#define _P_tmpdir "\\"
#ifndef __STRICT_ANSI__
#define P_tmpdir _P_tmpdir
#endif
#define _wP_tmpdir L"\\"
/*
* The maximum size of name (including NUL) that will be put in the user
* supplied buffer caName for tmpnam.
* Inferred from the size of the static buffer returned by tmpnam
* when passed a NULL argument. May actually be smaller.
*/
#define L_tmpnam (16)
#define _IOFBF 0x0000 /* full buffered */
#define _IOLBF 0x0040 /* line buffered */
#define _IONBF 0x0004 /* not buffered */
#define _IOMYBUF 0x0008 /* stdio malloc()'d buffer */
#define _IOEOF 0x0010 /* EOF reached on read */
#define _IOERR 0x0020 /* I/O error from system */
#define _IOSTRG 0x0040 /* Strange or no file descriptor */
#ifdef _POSIX_SOURCE
# define _IOAPPEND 0x0200
#endif
/*
* The buffer size as used by setbuf such that it is equivalent to
* (void) setvbuf(fileSetBuffer, caBuffer, _IOFBF, BUFSIZ).
*/
#define BUFSIZ 512
/* Constants for nOrigin indicating the position relative to which fseek
* sets the file position. Defined unconditionally since ISO and POSIX
* say they are defined here. */
#define SEEK_SET 0
#define SEEK_CUR 1
#define SEEK_END 2
#ifndef RC_INVOKED
#ifndef __VALIST
#ifdef __GNUC__
#define __VALIST __gnuc_va_list
#else
#define __VALIST char*
#endif
#endif /* defined __VALIST */
/*
* The structure underlying the FILE type.
*
* Some believe that nobody in their right mind should make use of the
* internals of this structure. Provided by Pedro A. Aranda Gutiirrez
* <paag@tid.es>.
*/
#ifndef _FILE_DEFINED
#define _FILE_DEFINED
typedef struct _iobuf
{
char* _ptr;
int _cnt;
char* _base;
int _flag;
int _file;
int _charbuf;
int _bufsiz;
char* _tmpfname;
} FILE;
#endif /* Not _FILE_DEFINED */
/*
* The standard file handles
*/
#ifndef __DECLSPEC_SUPPORTED
extern FILE (*_imp___iob)[]; /* A pointer to an array of FILE */
#define _iob (*_imp___iob) /* An array of FILE */
#else /* __DECLSPEC_SUPPORTED */
__MINGW_IMPORT FILE _iob[]; /* An array of FILE imported from DLL. */
#endif /* __DECLSPEC_SUPPORTED */
#define stdin (&_iob[STDIN_FILENO])
#define stdout (&_iob[STDOUT_FILENO])
#define stderr (&_iob[STDERR_FILENO])
#ifdef __cplusplus
extern "C" {
#endif
/*
* File Operations
*/
_CRTIMP FILE* __cdecl __MINGW_NOTHROW fopen (const char*, const char*);
_CRTIMP FILE* __cdecl __MINGW_NOTHROW freopen (const char*, const char*, FILE*);
_CRTIMP int __cdecl __MINGW_NOTHROW fflush (FILE*);
_CRTIMP int __cdecl __MINGW_NOTHROW fclose (FILE*);
/* MS puts remove & rename (but not wide versions) in io.h also */
_CRTIMP int __cdecl __MINGW_NOTHROW remove (const char*);
_CRTIMP int __cdecl __MINGW_NOTHROW rename (const char*, const char*);
_CRTIMP FILE* __cdecl __MINGW_NOTHROW tmpfile (void);
_CRTIMP char* __cdecl __MINGW_NOTHROW tmpnam (char*);
#ifndef __STRICT_ANSI__
_CRTIMP char* __cdecl __MINGW_NOTHROW _tempnam (const char*, const char*);
_CRTIMP int __cdecl __MINGW_NOTHROW _rmtmp(void);
_CRTIMP int __cdecl __MINGW_NOTHROW _unlink (const char*);
#ifndef NO_OLDNAMES
_CRTIMP char* __cdecl __MINGW_NOTHROW tempnam (const char*, const char*);
_CRTIMP int __cdecl __MINGW_NOTHROW rmtmp(void);
_CRTIMP int __cdecl __MINGW_NOTHROW unlink (const char*);
#endif
#endif /* __STRICT_ANSI__ */
_CRTIMP int __cdecl __MINGW_NOTHROW setvbuf (FILE*, char*, int, size_t);
_CRTIMP void __cdecl __MINGW_NOTHROW setbuf (FILE*, char*);
/*
* Formatted Output
*
* MSVCRT implementations are not ANSI C99 conformant...
* we offer these conforming alternatives from libmingwex.a
*/
#undef __mingw_stdio_redirect__
#define __mingw_stdio_redirect__(F) __cdecl __MINGW_NOTHROW __mingw_##F
extern int __mingw_stdio_redirect__(fprintf)(FILE*, const char*, ...);
extern int __mingw_stdio_redirect__(printf)(const char*, ...);
extern int __mingw_stdio_redirect__(sprintf)(char*, const char*, ...);
extern int __mingw_stdio_redirect__(snprintf)(char*, size_t, const char*, ...);
extern int __mingw_stdio_redirect__(vfprintf)(FILE*, const char*, __VALIST);
extern int __mingw_stdio_redirect__(vprintf)(const char*, __VALIST);
extern int __mingw_stdio_redirect__(vsprintf)(char*, const char*, __VALIST);
extern int __mingw_stdio_redirect__(vsnprintf)(char*, size_t, const char*, __VALIST);
#if __USE_MINGW_ANSI_STDIO
/*
* User has expressed a preference for C99 conformance...
*/
# undef __mingw_stdio_redirect__
# ifdef __cplusplus
/*
* For C++ we use inline implementations, to avoid interference
* with namespace qualification, which may result from using #defines.
*/
# define __mingw_stdio_redirect__ static inline __cdecl __MINGW_NOTHROW
# elif defined __GNUC__
/*
* FIXME: Is there any GCC version prerequisite here?
*
* We also prefer inline implementations for C, when we can be confident
* that the GNU specific __inline__ mechanism is supported.
*/
# define __mingw_stdio_redirect__ static __inline__ __cdecl __MINGW_NOTHROW
# else
/*
* Can't use inlines; fall back on module local static stubs.
*/
# define __mingw_stdio_redirect__ static __cdecl __MINGW_NOTHROW
# endif
__mingw_stdio_redirect__
int fprintf (FILE *__stream, const char *__format, ...)
{
register int __retval;
__builtin_va_list __local_argv; __builtin_va_start( __local_argv, __format );
__retval = __mingw_vfprintf( __stream, __format, __local_argv );
__builtin_va_end( __local_argv );
return __retval;
}
__mingw_stdio_redirect__
int printf (const char *__format, ...)
{
register int __retval;
__builtin_va_list __local_argv; __builtin_va_start( __local_argv, __format );
__retval = __mingw_vprintf( __format, __local_argv );
__builtin_va_end( __local_argv );
return __retval;
}
__mingw_stdio_redirect__
int sprintf (char *__stream, const char *__format, ...)
{
register int __retval;
__builtin_va_list __local_argv; __builtin_va_start( __local_argv, __format );
__retval = __mingw_vsprintf( __stream, __format, __local_argv );
__builtin_va_end( __local_argv );
return __retval;
}
__mingw_stdio_redirect__
int vfprintf (FILE *__stream, const char *__format, __VALIST __local_argv)
{
return __mingw_vfprintf( __stream, __format, __local_argv );
}
__mingw_stdio_redirect__
int vprintf (const char *__format, __VALIST __local_argv)
{
return __mingw_vprintf( __format, __local_argv );
}
__mingw_stdio_redirect__
int vsprintf (char *__stream, const char *__format, __VALIST __local_argv)
{
return __mingw_vsprintf( __stream, __format, __local_argv );
}
#else
/*
* Default configuration: simply direct all calls to MSVCRT...
*/
_CRTIMP int __cdecl __MINGW_NOTHROW fprintf (FILE*, const char*, ...);
_CRTIMP int __cdecl __MINGW_NOTHROW printf (const char*, ...);
_CRTIMP int __cdecl __MINGW_NOTHROW sprintf (char*, const char*, ...);
_CRTIMP int __cdecl __MINGW_NOTHROW vfprintf (FILE*, const char*, __VALIST);
_CRTIMP int __cdecl __MINGW_NOTHROW vprintf (const char*, __VALIST);
_CRTIMP int __cdecl __MINGW_NOTHROW vsprintf (char*, const char*, __VALIST);
#endif
/*
* Regardless of user preference, always offer these alternative
* entry points, for direct access to the MSVCRT implementations.
*/
#undef __mingw_stdio_redirect__
#define __mingw_stdio_redirect__(F) __cdecl __MINGW_NOTHROW __msvcrt_##F
_CRTIMP int __mingw_stdio_redirect__(fprintf)(FILE*, const char*, ...);
_CRTIMP int __mingw_stdio_redirect__(printf)(const char*, ...);
_CRTIMP int __mingw_stdio_redirect__(sprintf)(char*, const char*, ...);
_CRTIMP int __mingw_stdio_redirect__(vfprintf)(FILE*, const char*, __VALIST);
_CRTIMP int __mingw_stdio_redirect__(vprintf)(const char*, __VALIST);
_CRTIMP int __mingw_stdio_redirect__(vsprintf)(char*, const char*, __VALIST);
#undef __mingw_stdio_redirect__
/* The following pair ALWAYS refer to the MSVCRT implementations...
*/
_CRTIMP int __cdecl __MINGW_NOTHROW _snprintf (char*, size_t, const char*, ...);
_CRTIMP int __cdecl __MINGW_NOTHROW _vsnprintf (char*, size_t, const char*, __VALIST);
#ifndef __NO_ISOCEXT /* externs in libmingwex.a */
/*
* Microsoft does not provide implementations for the following,
* which are required by C99. Note in particular that the corresponding
* Microsoft implementations of _snprintf() and _vsnprintf() are *not*
* compatible with C99, but the following are; if you want the MSVCRT
* behaviour, you *must* use the Microsoft uglified names.
*/
int __cdecl __MINGW_NOTHROW snprintf (char *, size_t, const char *, ...);
int __cdecl __MINGW_NOTHROW vsnprintf (char *, size_t, const char *, __VALIST);
int __cdecl __MINGW_NOTHROW vscanf (const char * __restrict__, __VALIST);
int __cdecl __MINGW_NOTHROW vfscanf (FILE * __restrict__, const char * __restrict__,
__VALIST);
int __cdecl __MINGW_NOTHROW vsscanf (const char * __restrict__,
const char * __restrict__, __VALIST);
#endif /* !__NO_ISOCEXT */
/*
* Formatted Input
*/
_CRTIMP int __cdecl __MINGW_NOTHROW fscanf (FILE*, const char*, ...);
_CRTIMP int __cdecl __MINGW_NOTHROW scanf (const char*, ...);
_CRTIMP int __cdecl __MINGW_NOTHROW sscanf (const char*, const char*, ...);
/*
* Character Input and Output Functions
*/
_CRTIMP int __cdecl __MINGW_NOTHROW fgetc (FILE*);
_CRTIMP char* __cdecl __MINGW_NOTHROW fgets (char*, int, FILE*);
_CRTIMP int __cdecl __MINGW_NOTHROW fputc (int, FILE*);
_CRTIMP int __cdecl __MINGW_NOTHROW fputs (const char*, FILE*);
_CRTIMP char* __cdecl __MINGW_NOTHROW gets (char*);
_CRTIMP int __cdecl __MINGW_NOTHROW puts (const char*);
_CRTIMP int __cdecl __MINGW_NOTHROW ungetc (int, FILE*);
/* Traditionally, getc and putc are defined as macros. but the
standard doesn't say that they must be macros.
We use inline functions here to allow the fast versions
to be used in C++ with namespace qualification, eg., ::getc.
_filbuf and _flsbuf are not thread-safe. */
_CRTIMP int __cdecl __MINGW_NOTHROW _filbuf (FILE*);
_CRTIMP int __cdecl __MINGW_NOTHROW _flsbuf (int, FILE*);
#if !defined _MT
__CRT_INLINE int __cdecl __MINGW_NOTHROW getc (FILE* __F)
{
return (--__F->_cnt >= 0)
? (int) (unsigned char) *__F->_ptr++
: _filbuf (__F);
}
__CRT_INLINE int __cdecl __MINGW_NOTHROW putc (int __c, FILE* __F)
{
return (--__F->_cnt >= 0)
? (int) (unsigned char) (*__F->_ptr++ = (char)__c)
: _flsbuf (__c, __F);
}
__CRT_INLINE int __cdecl __MINGW_NOTHROW getchar (void)
{
return (--stdin->_cnt >= 0)
? (int) (unsigned char) *stdin->_ptr++
: _filbuf (stdin);
}
__CRT_INLINE int __cdecl __MINGW_NOTHROW putchar(int __c)
{
return (--stdout->_cnt >= 0)
? (int) (unsigned char) (*stdout->_ptr++ = (char)__c)
: _flsbuf (__c, stdout);}
#else /* Use library functions. */
_CRTIMP int __cdecl __MINGW_NOTHROW getc (FILE*);
_CRTIMP int __cdecl __MINGW_NOTHROW putc (int, FILE*);
_CRTIMP int __cdecl __MINGW_NOTHROW getchar (void);
_CRTIMP int __cdecl __MINGW_NOTHROW putchar (int);
#endif
/*
* Direct Input and Output Functions
*/
_CRTIMP size_t __cdecl __MINGW_NOTHROW fread (void*, size_t, size_t, FILE*);
_CRTIMP size_t __cdecl __MINGW_NOTHROW fwrite (const void*, size_t, size_t, FILE*);
/*
* File Positioning Functions
*/
_CRTIMP int __cdecl __MINGW_NOTHROW fseek (FILE*, long, int);
_CRTIMP long __cdecl __MINGW_NOTHROW ftell (FILE*);
_CRTIMP void __cdecl __MINGW_NOTHROW rewind (FILE*);
#if __MSVCRT_VERSION__ >= 0x800
_CRTIMP int __cdecl __MINGW_NOTHROW _fseek_nolock (FILE*, long, int);
_CRTIMP long __cdecl __MINGW_NOTHROW _ftell_nolock (FILE*);
_CRTIMP int __cdecl __MINGW_NOTHROW _fseeki64 (FILE*, __int64, int);
_CRTIMP __int64 __cdecl __MINGW_NOTHROW _ftelli64 (FILE*);
_CRTIMP int __cdecl __MINGW_NOTHROW _fseeki64_nolock (FILE*, __int64, int);
_CRTIMP __int64 __cdecl __MINGW_NOTHROW _ftelli64_nolock (FILE*);
#endif
#ifdef __USE_MINGW_FSEEK /* These are in libmingwex.a */
/*
* Workaround for limitations on win9x where a file contents are
* not zero'd out if you seek past the end and then write.
*/
int __cdecl __MINGW_NOTHROW __mingw_fseek (FILE *, long, int);
size_t __cdecl __MINGW_NOTHROW __mingw_fwrite (const void*, size_t, size_t, FILE*);
#define fseek(fp, offset, whence) __mingw_fseek(fp, offset, whence)
#define fwrite(buffer, size, count, fp) __mingw_fwrite(buffer, size, count, fp)
#endif /* __USE_MINGW_FSEEK */
/*
* An opaque data type used for storing file positions... The contents of
* this type are unknown, but we (the compiler) need to know the size
* because the programmer using fgetpos and fsetpos will be setting aside
* storage for fpos_t structres. Actually I tested using a byte array and
* it is fairly evident that the fpos_t type is a long (in CRTDLL.DLL).
* Perhaps an unsigned long? TODO? It's definitely a 64-bit number in
* MSVCRT however, and for now `long long' will do.
*/
#ifdef __MSVCRT__
typedef long long fpos_t;
#else
typedef long fpos_t;
#endif
_CRTIMP int __cdecl __MINGW_NOTHROW fgetpos (FILE*, fpos_t*);
_CRTIMP int __cdecl __MINGW_NOTHROW fsetpos (FILE*, const fpos_t*);
/*
* Error Functions
*/
_CRTIMP int __cdecl __MINGW_NOTHROW feof (FILE*);
_CRTIMP int __cdecl __MINGW_NOTHROW ferror (FILE*);
#ifdef __cplusplus
inline int __cdecl __MINGW_NOTHROW feof (FILE* __F)
{ return __F->_flag & _IOEOF; }
inline int __cdecl __MINGW_NOTHROW ferror (FILE* __F)
{ return __F->_flag & _IOERR; }
#else
#define feof(__F) ((__F)->_flag & _IOEOF)
#define ferror(__F) ((__F)->_flag & _IOERR)
#endif
_CRTIMP void __cdecl __MINGW_NOTHROW clearerr (FILE*);
_CRTIMP void __cdecl __MINGW_NOTHROW perror (const char*);
#ifndef __STRICT_ANSI__
/*
* Pipes
*/
_CRTIMP FILE* __cdecl __MINGW_NOTHROW _popen (const char*, const char*);
_CRTIMP int __cdecl __MINGW_NOTHROW _pclose (FILE*);
#ifndef NO_OLDNAMES
_CRTIMP FILE* __cdecl __MINGW_NOTHROW popen (const char*, const char*);
_CRTIMP int __cdecl __MINGW_NOTHROW pclose (FILE*);
#endif
/*
* Other Non ANSI functions
*/
_CRTIMP int __cdecl __MINGW_NOTHROW _flushall (void);
_CRTIMP int __cdecl __MINGW_NOTHROW _fgetchar (void);
_CRTIMP int __cdecl __MINGW_NOTHROW _fputchar (int);
_CRTIMP FILE* __cdecl __MINGW_NOTHROW _fdopen (int, const char*);
_CRTIMP int __cdecl __MINGW_NOTHROW _fileno (FILE*);
_CRTIMP int __cdecl __MINGW_NOTHROW _fcloseall (void);
_CRTIMP FILE* __cdecl __MINGW_NOTHROW _fsopen (const char*, const char*, int);
#ifdef __MSVCRT__
_CRTIMP int __cdecl __MINGW_NOTHROW _getmaxstdio (void);
_CRTIMP int __cdecl __MINGW_NOTHROW _setmaxstdio (int);
#endif
#if __MSVCRT_VERSION__ >= 0x800
_CRTIMP unsigned int __cdecl __MINGW_NOTHROW _get_output_format (void);
_CRTIMP unsigned int __cdecl __MINGW_NOTHROW _set_output_format (unsigned int);
#define _TWO_DIGIT_EXPONENT 1
_CRTIMP int __cdecl __MINGW_NOTHROW _get_printf_count_output (void);
_CRTIMP int __cdecl __MINGW_NOTHROW _set_printf_count_output (int);
#endif
#ifndef _NO_OLDNAMES
_CRTIMP int __cdecl __MINGW_NOTHROW fgetchar (void);
_CRTIMP int __cdecl __MINGW_NOTHROW fputchar (int);
_CRTIMP FILE* __cdecl __MINGW_NOTHROW fdopen (int, const char*);
_CRTIMP int __cdecl __MINGW_NOTHROW fileno (FILE*);
#endif /* Not _NO_OLDNAMES */
#define _fileno(__F) ((__F)->_file)
#ifndef _NO_OLDNAMES
#define fileno(__F) ((__F)->_file)
#endif
#if defined (__MSVCRT__) && !defined (__NO_MINGW_LFS)
#include <sys/types.h>
__CRT_INLINE FILE* __cdecl __MINGW_NOTHROW fopen64 (const char* filename, const char* mode)
{
return fopen (filename, mode);
}
int __cdecl __MINGW_NOTHROW fseeko64 (FILE*, off64_t, int);
#ifdef __USE_MINGW_FSEEK
int __cdecl __MINGW_NOTHROW __mingw_fseeko64 (FILE *, off64_t, int);
#define fseeko64(fp, offset, whence) __mingw_fseeko64(fp, offset, whence)
#endif
__CRT_INLINE off64_t __cdecl __MINGW_NOTHROW ftello64 (FILE * stream)
{
fpos_t pos;
if (fgetpos(stream, &pos))
return -1LL;
else
return ((off64_t) pos);
}
#endif /* __NO_MINGW_LFS */
#endif /* Not __STRICT_ANSI__ */
/* Wide versions */
#ifndef _WSTDIO_DEFINED
/* also in wchar.h - keep in sync */
_CRTIMP int __cdecl __MINGW_NOTHROW fwprintf (FILE*, const wchar_t*, ...);
_CRTIMP int __cdecl __MINGW_NOTHROW wprintf (const wchar_t*, ...);
_CRTIMP int __cdecl __MINGW_NOTHROW _snwprintf (wchar_t*, size_t, const wchar_t*, ...);
_CRTIMP int __cdecl __MINGW_NOTHROW vfwprintf (FILE*, const wchar_t*, __VALIST);
_CRTIMP int __cdecl __MINGW_NOTHROW vwprintf (const wchar_t*, __VALIST);
_CRTIMP int __cdecl __MINGW_NOTHROW _vsnwprintf (wchar_t*, size_t, const wchar_t*, __VALIST);
_CRTIMP int __cdecl __MINGW_NOTHROW fwscanf (FILE*, const wchar_t*, ...);
_CRTIMP int __cdecl __MINGW_NOTHROW wscanf (const wchar_t*, ...);
_CRTIMP int __cdecl __MINGW_NOTHROW swscanf (const wchar_t*, const wchar_t*, ...);
_CRTIMP wint_t __cdecl __MINGW_NOTHROW fgetwc (FILE*);
_CRTIMP wint_t __cdecl __MINGW_NOTHROW fputwc (wchar_t, FILE*);
_CRTIMP wint_t __cdecl __MINGW_NOTHROW ungetwc (wchar_t, FILE*);
/* These differ from the ISO C prototypes, which have a maxlen parameter (like snprintf). */
#ifndef __STRICT_ANSI__
_CRTIMP int __cdecl __MINGW_NOTHROW swprintf (wchar_t*, const wchar_t*, ...);
_CRTIMP int __cdecl __MINGW_NOTHROW vswprintf (wchar_t*, const wchar_t*, __VALIST);
#endif
#ifdef __MSVCRT__
_CRTIMP wchar_t* __cdecl __MINGW_NOTHROW fgetws (wchar_t*, int, FILE*);
_CRTIMP int __cdecl __MINGW_NOTHROW fputws (const wchar_t*, FILE*);
_CRTIMP wint_t __cdecl __MINGW_NOTHROW getwc (FILE*);
_CRTIMP wint_t __cdecl __MINGW_NOTHROW getwchar (void);
_CRTIMP wchar_t* __cdecl __MINGW_NOTHROW _getws (wchar_t*);
_CRTIMP wint_t __cdecl __MINGW_NOTHROW putwc (wint_t, FILE*);
_CRTIMP int __cdecl __MINGW_NOTHROW _putws (const wchar_t*);
_CRTIMP wint_t __cdecl __MINGW_NOTHROW putwchar (wint_t);
_CRTIMP FILE* __cdecl __MINGW_NOTHROW _wfdopen(int, const wchar_t *);
_CRTIMP FILE* __cdecl __MINGW_NOTHROW _wfopen (const wchar_t*, const wchar_t*);
_CRTIMP FILE* __cdecl __MINGW_NOTHROW _wfreopen (const wchar_t*, const wchar_t*, FILE*);
_CRTIMP FILE* __cdecl __MINGW_NOTHROW _wfsopen (const wchar_t*, const wchar_t*, int);
_CRTIMP wchar_t* __cdecl __MINGW_NOTHROW _wtmpnam (wchar_t*);
_CRTIMP wchar_t* __cdecl __MINGW_NOTHROW _wtempnam (const wchar_t*, const wchar_t*);
_CRTIMP int __cdecl __MINGW_NOTHROW _wrename (const wchar_t*, const wchar_t*);
_CRTIMP int __cdecl __MINGW_NOTHROW _wremove (const wchar_t*);
_CRTIMP void __cdecl __MINGW_NOTHROW _wperror (const wchar_t*);
_CRTIMP FILE* __cdecl __MINGW_NOTHROW _wpopen (const wchar_t*, const wchar_t*);
#endif /* __MSVCRT__ */
#ifndef __NO_ISOCEXT /* externs in libmingwex.a */
int __cdecl __MINGW_NOTHROW snwprintf (wchar_t* s, size_t n, const wchar_t* format, ...);
__CRT_INLINE int __cdecl __MINGW_NOTHROW
vsnwprintf (wchar_t* s, size_t n, const wchar_t* format, __VALIST arg)
{ return _vsnwprintf ( s, n, format, arg);}
int __cdecl __MINGW_NOTHROW vwscanf (const wchar_t * __restrict__, __VALIST);
int __cdecl __MINGW_NOTHROW vfwscanf (FILE * __restrict__,
const wchar_t * __restrict__, __VALIST);
int __cdecl __MINGW_NOTHROW vswscanf (const wchar_t * __restrict__,
const wchar_t * __restrict__, __VALIST);
#endif
#define _WSTDIO_DEFINED
#endif /* _WSTDIO_DEFINED */
#ifndef __STRICT_ANSI__
#ifdef __MSVCRT__
#ifndef NO_OLDNAMES
_CRTIMP FILE* __cdecl __MINGW_NOTHROW wpopen (const wchar_t*, const wchar_t*);
#endif /* not NO_OLDNAMES */
#endif /* MSVCRT runtime */
/*
* Other Non ANSI wide functions
*/
_CRTIMP wint_t __cdecl __MINGW_NOTHROW _fgetwchar (void);
_CRTIMP wint_t __cdecl __MINGW_NOTHROW _fputwchar (wint_t);
_CRTIMP int __cdecl __MINGW_NOTHROW _getw (FILE*);
_CRTIMP int __cdecl __MINGW_NOTHROW _putw (int, FILE*);
#ifndef _NO_OLDNAMES
_CRTIMP wint_t __cdecl __MINGW_NOTHROW fgetwchar (void);
_CRTIMP wint_t __cdecl __MINGW_NOTHROW fputwchar (wint_t);
_CRTIMP int __cdecl __MINGW_NOTHROW getw (FILE*);
_CRTIMP int __cdecl __MINGW_NOTHROW putw (int, FILE*);
#endif /* Not _NO_OLDNAMES */
#endif /* __STRICT_ANSI */
#ifdef __cplusplus
}
#endif
#endif /* Not RC_INVOKED */
#endif /* _STDIO_H_ */
具体替换的规则还有待研究。未完待续
原文链接: https://www.cnblogs.com/johnpher/archive/2012/09/04/2671164.html
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