io.h

C语言库函数的原型,有用的拿去

/***
*io.h - declarations for low-level file handling and I/O functions
*
*       Copyright (c) Microsoft Corporation. All rights reserved.
*
*Purpose:
*       This file contains the function declarations for the low-level
*       file handling and I/O functions.
*
*       [Public]
*
****/

#pragma once

#ifndef _INC_IO
#define _INC_IO

#include <crtdefs.h>

/*
 * Currently, all MS C compilers for Win32 platforms default to 8 byte
 * alignment.
 */
#pragma pack(push,_CRT_PACKING)


#ifdef __cplusplus
extern "C" {
#endif  /* __cplusplus */

#ifndef _FSIZE_T_DEFINED
typedef unsigned long _fsize_t; /* Could be 64 bits for Win32 */
#define _FSIZE_T_DEFINED
#endif  /* _FSIZE_T_DEFINED */

#ifndef _FINDDATA_T_DEFINED

struct _finddata32_t {
        unsigned    attrib;
        __time32_t  time_create;    /* -1 for FAT file systems */
        __time32_t  time_access;    /* -1 for FAT file systems */
        __time32_t  time_write;
        _fsize_t    size;
        char        name[260];
};

struct _finddata32i64_t {
        unsigned    attrib;
        __time32_t  time_create;    /* -1 for FAT file systems */
        __time32_t  time_access;    /* -1 for FAT file systems */
        __time32_t  time_write;
        __int64     size;
        char        name[260];
};

struct _finddata64i32_t {
        unsigned    attrib;
        __time64_t  time_create;    /* -1 for FAT file systems */
        __time64_t  time_access;    /* -1 for FAT file systems */
        __time64_t  time_write;
        _fsize_t    size;
        char        name[260];
};

struct __finddata64_t {
        unsigned    attrib;
        __time64_t  time_create;    /* -1 for FAT file systems */
        __time64_t  time_access;    /* -1 for FAT file systems */
        __time64_t  time_write;
        __int64     size;
        char        name[260];
};

#ifdef _USE_32BIT_TIME_T
#define _finddata_t     _finddata32_t
#define _finddatai64_t  _finddata32i64_t

#define _findfirst      _findfirst32
#define _findnext       _findnext32
#define _findfirsti64   _findfirst32i64
#define _findnexti64     _findnext32i64

#else  /* _USE_32BIT_TIME_T */
#define _finddata_t     _finddata64i32_t
#define _finddatai64_t  __finddata64_t

#define _findfirst      _findfirst64i32
#define _findnext       _findnext64i32
#define _findfirsti64   _findfirst64
#define _findnexti64    _findnext64

#endif  /* _USE_32BIT_TIME_T */


#define _FINDDATA_T_DEFINED
#endif  /* _FINDDATA_T_DEFINED */

#ifndef _WFINDDATA_T_DEFINED

struct _wfinddata32_t {
        unsigned    attrib;
        __time32_t  time_create;    /* -1 for FAT file systems */
        __time32_t  time_access;    /* -1 for FAT file systems */
        __time32_t  time_write;
        _fsize_t    size;
        wchar_t     name[260];
};

struct _wfinddata32i64_t {
        unsigned    attrib;
        __time32_t  time_create;    /* -1 for FAT file systems */
        __time32_t  time_access;    /* -1 for FAT file systems */
        __time32_t  time_write;
        __int64     size;
        wchar_t     name[260];
};

struct _wfinddata64i32_t {
        unsigned    attrib;
        __time64_t  time_create;    /* -1 for FAT file systems */
        __time64_t  time_access;    /* -1 for FAT file systems */
        __time64_t  time_write;
        _fsize_t    size;
        wchar_t     name[260];
};

struct _wfinddata64_t {
        unsigned    attrib;
        __time64_t  time_create;    /* -1 for FAT file systems */
        __time64_t  time_access;    /* -1 for FAT file systems */
        __time64_t  time_write;
        __int64     size;
        wchar_t     name[260];
};

#ifdef _USE_32BIT_TIME_T
#define _wfinddata_t    _wfinddata32_t
#define _wfinddatai64_t _wfinddata32i64_t

#define _wfindfirst     _wfindfirst32
#define _wfindnext      _wfindnext32
#define _wfindfirsti64  _wfindfirst32i64
#define _wfindnexti64   _wfindnext32i64

#else  /* _USE_32BIT_TIME_T */
#define _wfinddata_t    _wfinddata64i32_t
#define _wfinddatai64_t _wfinddata64_t

#define _wfindfirst     _wfindfirst64i32
#define _wfindnext      _wfindnext64i32
#define _wfindfirsti64  _wfindfirst64
#define _wfindnexti64   _wfindnext64

#endif  /* _USE_32BIT_TIME_T */

#define _WFINDDATA_T_DEFINED
#endif  /* _WFINDDATA_T_DEFINED */

/* File attribute constants for _findfirst() */

#define _A_NORMAL       0x00    /* Normal file - No read/write restrictions */
#define _A_RDONLY       0x01    /* Read only file */
#define _A_HIDDEN       0x02    /* Hidden file */
#define _A_SYSTEM       0x04    /* System file */
#define _A_SUBDIR       0x10    /* Subdirectory */
#define _A_ARCH         0x20    /* Archive file */

/* function prototypes */

#ifndef _SIZE_T_DEFINED
#ifdef _WIN64
typedef unsigned __int64    size_t;
#else  /* _WIN64 */
typedef _W64 unsigned int   size_t;