当前位置： 首页 > news >正文

金华手机网站建设,手机建设银行新网站,seo概念,二级域名做很多网站VS2017/2019 无法打开包括文件: “dirent.h”: No such file or directory 1 “dirent.h”: No such file or directory 在windows下的VS2017/2019编译器中#xff0c;发现无法打开“dirent.h”#xff0c;主要是MSVC并没有实现这个头文件#xff0c;但是在Linux这个头文件…VS2017/2019 无法打开包括文件: “dirent.h”: No such file or directory 1 “dirent.h”: No such file or directory 在windows下的VS2017/2019编译器中发现无法打开“dirent.h”主要是MSVC并没有实现这个头文件但是在Linux这个头文件肯定是有的。为此有人已经写出了WIndows下可用的 “dirent.h”。 这是github地址也可以从这里下载你只需要这个头文件即可 https://github.com/tronkko/dirent 2 只需要把下面的代码保存dirent.h即可直接放在工程目录下。 /** Dirent interface for Microsoft Visual Studio** Copyright © 1998-2019 Toni Ronkko* This file is part of dirent. Dirent may be freely distributed* under the MIT license. For all details and documentation, see* https://github.com/tronkko/dirent*/ #ifndef DIRENT_H #define DIRENT_H/* Hide warnings about unreferenced local functions */ #if defined(clang)

pragma clang diagnostic ignored -Wunused-function

#elif defined(_MSC_VER)

pragma warning(disable:4505)

#elif defined(GNUC)

pragma GCC diagnostic ignored -Wunused-function

#endif/** Include windows.h without Windows Sockets 1.1 to prevent conflicts with* Windows Sockets 2.0.*/ #ifndef WIN32_LEAN_AND_MEAN

define WIN32_LEAN_AND_MEAN

#endif #include windows.h#include stdio.h #include stdarg.h #include wchar.h #include string.h #include stdlib.h #include malloc.h #include sys/types.h #include sys/stat.h #include errno.h/* Indicates that d_type field is available in dirent structure / #define _DIRENT_HAVE_D_TYPE/ Indicates that d_namlen field is available in dirent structure / #define _DIRENT_HAVE_D_NAMLEN/ Entries missing from MSVC 6.0 */ #if !defined(FILE_ATTRIBUTE_DEVICE)

define FILE_ATTRIBUTE_DEVICE 0x40

#endif/* File type and permission flags for stat(), general mask */ #if !defined(S_IFMT)

define S_IFMT _S_IFMT

#endif/* Directory bit */ #if !defined(S_IFDIR)

define S_IFDIR _S_IFDIR

#endif/* Character device bit */ #if !defined(S_IFCHR)

define S_IFCHR _S_IFCHR

#endif/* Pipe bit */ #if !defined(S_IFFIFO)

define S_IFFIFO _S_IFFIFO

#endif/* Regular file bit */ #if !defined(S_IFREG)

define S_IFREG _S_IFREG

#endif/* Read permission */ #if !defined(S_IREAD)

define S_IREAD _S_IREAD

#endif/* Write permission */ #if !defined(S_IWRITE)

define S_IWRITE _S_IWRITE

#endif/* Execute permission */ #if !defined(S_IEXEC)

define S_IEXEC _S_IEXEC

#endif/* Pipe */ #if !defined(S_IFIFO)

define S_IFIFO _S_IFIFO

#endif/* Block device */ #if !defined(S_IFBLK)

define S_IFBLK 0

#endif/* Link */ #if !defined(S_IFLNK)

define S_IFLNK 0

#endif/* Socket */ #if !defined(S_IFSOCK)

define S_IFSOCK 0

#endif/* Read user permission */ #if !defined(S_IRUSR)

define S_IRUSR S_IREAD

#endif/* Write user permission */ #if !defined(S_IWUSR)

define S_IWUSR S_IWRITE

#endif/* Execute user permission */ #if !defined(S_IXUSR)

define S_IXUSR 0

#endif/* Read group permission */ #if !defined(S_IRGRP)

define S_IRGRP 0

#endif/* Write group permission */ #if !defined(S_IWGRP)

define S_IWGRP 0

#endif/* Execute group permission */ #if !defined(S_IXGRP)

define S_IXGRP 0

#endif/* Read others permission */ #if !defined(S_IROTH)

define S_IROTH 0

#endif/* Write others permission */ #if !defined(S_IWOTH)

define S_IWOTH 0

#endif/* Execute others permission */ #if !defined(S_IXOTH)

define S_IXOTH 0

#endif/* Maximum length of file name */ #if !defined(PATH_MAX)

define PATH_MAX MAX_PATH

#endif #if !defined(FILENAME_MAX)

define FILENAME_MAX MAX_PATH

#endif #if !defined(NAME_MAX)

define NAME_MAX FILENAME_MAX

#endif/* File type flags for d_type / #define DT_UNKNOWN 0 #define DT_REG S_IFREG #define DT_DIR S_IFDIR #define DT_FIFO S_IFIFO #define DT_SOCK S_IFSOCK #define DT_CHR S_IFCHR #define DT_BLK S_IFBLK #define DT_LNK S_IFLNK/ Macros for converting between st_mode and d_type / #define IFTODT(mode) ((mode) S_IFMT) #define DTTOIF(type) (type)/** File type macros. Note that block devices, sockets and links cannot be distinguished on Windows and the macros S_ISBLK, S_ISSOCK and S_ISLNK are* only defined for compatibility. These macros should always return false* on Windows.*/ #if !defined(S_ISFIFO)

define S_ISFIFO(mode) (((mode) S_IFMT) S_IFIFO)

#endif #if !defined(S_ISDIR)

define S_ISDIR(mode) (((mode) S_IFMT) S_IFDIR)

#endif #if !defined(S_ISREG)

define S_ISREG(mode) (((mode) S_IFMT) S_IFREG)

#endif #if !defined(S_ISLNK)

define S_ISLNK(mode) (((mode) S_IFMT) S_IFLNK)

#endif #if !defined(S_ISSOCK)

define S_ISSOCK(mode) (((mode) S_IFMT) S_IFSOCK)

#endif #if !defined(S_ISCHR)

define S_ISCHR(mode) (((mode) S_IFMT) S_IFCHR)

#endif #if !defined(S_ISBLK)

define S_ISBLK(mode) (((mode) S_IFMT) S_IFBLK)

#endif/* Return the exact length of the file name without zero terminator / #define _D_EXACT_NAMLEN(p) ((p)-d_namlen)/ Return the maximum size of a file name / #define _D_ALLOC_NAMLEN(p) ((PATH_MAX)1)#ifdef __cplusplus extern C { #endif/ Wide-character version / struct _wdirent {/ Always zero /long d_ino;/ File position within stream /long d_off;/ Structure size /unsigned short d_reclen;/ Length of name without \0 /size_t d_namlen;/ File type /int d_type;/ File name /wchar_t d_name[PATH_MAX1]; }; typedef struct _wdirent _wdirent;struct _WDIR {/ Current directory entry /struct _wdirent ent;/ Private file data /WIN32_FIND_DATAW data;/ True if data is valid /int cached;/ Win32 search handle /HANDLE handle;/ Initial directory name */wchar_t patt; }; typedef struct _WDIR _WDIR;/ Multi-byte character version / struct dirent {/ Always zero /long d_ino;/ File position within stream /long d_off;/ Structure size /unsigned short d_reclen;/ Length of name without \0 /size_t d_namlen;/ File type /int d_type;/ File name */char d_name[PATH_MAX1]; }; typedef struct dirent dirent;struct DIR {struct dirent ent;struct _WDIR wdirp; }; typedef struct DIR DIR;/ Dirent functions */ static DIR *opendir (const char *dirname); static _WDIR *_wopendir (const wchar_t *dirname);static struct dirent *readdir (DIR *dirp); static struct _wdirent *_wreaddir (_WDIR *dirp);static int readdir_r(DIR *dirp, struct dirent *entry, struct dirent **result); static int _wreaddir_r(_WDIR *dirp, struct _wdirent *entry, struct _wdirent **result);static int closedir (DIR *dirp); static int _wclosedir (_WDIR dirp);static void rewinddir (DIR dirp); static void _wrewinddir (_WDIR* dirp);static int scandir (const char *dirname, struct dirent *namelist,int (filter)(const struct dirent),int (*compare)(const struct dirent, const struct dirent*));static int alphasort (const struct dirent **a, const struct dirent **b);static int versionsort (const struct dirent **a, const struct dirent **b);/ For compatibility with Symbian / #define wdirent _wdirent #define WDIR _WDIR #define wopendir _wopendir #define wreaddir _wreaddir #define wclosedir _wclosedir #define wrewinddir _wrewinddir/ Internal utility functions */ static WIN32_FIND_DATAW *dirent_first (_WDIR *dirp); static WIN32_FIND_DATAW *dirent_next (_WDIR *dirp);static int dirent_mbstowcs_s(size_t *pReturnValue,wchar_t *wcstr,size_t sizeInWords,const char *mbstr,size_t count);static int dirent_wcstombs_s(size_t *pReturnValue,char *mbstr,size_t sizeInBytes,const wchar_t wcstr,size_t count);static void dirent_set_errno (int error);/** Open directory stream DIRNAME for read and return a pointer to the internal working area that is used to retrieve individual directory* entries./ static _WDIR _wopendir(const wchar_t *dirname) {_WDIR dirp; #if WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)/ Desktop /DWORD n; #else/ WinRT */size_t n; #endifwchar_t p;/ Must have directory name /if (dirname NULL || dirname[0] \0) {dirent_set_errno (ENOENT);return NULL;}/ Allocate new _WDIR structure /dirp (_WDIR) malloc (sizeof (struct _WDIR));if (!dirp) {return NULL;}/* Reset _WDIR structure /dirp-handle INVALID_HANDLE_VALUE;dirp-patt NULL;dirp-cached 0;/** Compute the length of full path plus zero terminator** Note that on WinRT theres no way to convert relative paths into absolute paths, so just assume it is an absolute path./ #if WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)/ Desktop /n GetFullPathNameW (dirname, 0, NULL, NULL); #else/ WinRT /n wcslen (dirname); #endif/ Allocate room for absolute directory name and search pattern /dirp-patt (wchar_t) malloc (sizeof (wchar_t) * n 16);if (dirp-patt NULL) {goto exit_closedir;}/** Convert relative directory name to an absolute one. This* allows rewinddir() to function correctly even when current* working directory is changed between opendir() and rewinddir().** Note that on WinRT theres no way to convert relative paths* into absolute paths, so just assume it is an absolute path./ #if WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)/ Desktop /n GetFullPathNameW (dirname, n, dirp-patt, NULL);if (n 0) {goto exit_closedir;} #else/ WinRT /wcsncpy_s (dirp-patt, n1, dirname, n); #endif/ Append search pattern * to the directory name /p dirp-patt n;switch (p[-1]) {case \:case /:case ::/ Directory ends in path separator, e.g. c:\temp\ *//NOP/;break;default:/* Directory name doesnt end in path separator */*p \;}*p *;p \0;/ Open directory stream and retrieve the first entry /if (!dirent_first (dirp)) {goto exit_closedir;}/ Success /return dirp;/ Failure / exit_closedir:_wclosedir (dirp);return NULL; }/** Read next directory entry.** Returns pointer to static directory entry which may be overwritten by subsequent calls to _wreaddir()./ static struct _wdirent _wreaddir(_WDIR *dirp) {struct _wdirent entry;/** Read directory entry to buffer. We can safely ignore the return value as entry will be set to NULL in case of error./(void) _wreaddir_r (dirp, dirp-ent, entry);/ Return pointer to statically allocated directory entry /return entry; }/** Read next directory entry.** Returns zero on success. If end of directory stream is reached, then sets result to NULL and returns zero.*/ static int _wreaddir_r(_WDIR *dirp,struct _wdirent *entry,struct _wdirent result) {WIN32_FIND_DATAW datap;/ Read next directory entry */datap dirent_next (dirp);if (datap) {size_t n;DWORD attr;/ Copy file name as wide-character string. If the file name is too* long to fit in to the destination buffer, then truncate file name* to PATH_MAX characters and zero-terminate the buffer./n 0;while (n PATH_MAX datap-cFileName[n] ! 0) {entry-d_name[n] datap-cFileName[n];n;}entry-d_name[n] 0;/ Length of file name excluding zero terminator /entry-d_namlen n;/ File type /attr datap-dwFileAttributes;if ((attr FILE_ATTRIBUTE_DEVICE) ! 0) {entry-d_type DT_CHR;} else if ((attr FILE_ATTRIBUTE_DIRECTORY) ! 0) {entry-d_type DT_DIR;} else {entry-d_type DT_REG;}/ Reset dummy fields /entry-d_ino 0;entry-d_off 0;entry-d_reclen sizeof (struct _wdirent);/ Set result address */result entry;} else {/ Return NULL to indicate end of directory */*result NULL;}return /OK/0; }/** Close directory stream opened by opendir() function. This invalidates the* DIR structure as well as any directory entry read previously by* _wreaddir().*/ static int _wclosedir(_WDIR dirp) {int ok;if (dirp) {/ Release search handle /if (dirp-handle ! INVALID_HANDLE_VALUE) {FindClose (dirp-handle);}/ Release search pattern /free (dirp-patt);/ Release directory structure */free (dirp);ok /success/0;} else {/* Invalid directory stream */dirent_set_errno (EBADF);ok /failure/-1;}return ok; }/** Rewind directory stream such that _wreaddir() returns the very first* file name again./ static void _wrewinddir(_WDIR dirp) {if (dirp) {/* Release existing search handle /if (dirp-handle ! INVALID_HANDLE_VALUE) {FindClose (dirp-handle);}/ Open new search handle /dirent_first (dirp);} }/ Get first directory entry (internal) / static WIN32_FIND_DATAW dirent_first(_WDIR *dirp) {WIN32_FIND_DATAW datap;DWORD error;/ Open directory and retrieve the first entry /dirp-handle FindFirstFileExW(dirp-patt, FindExInfoStandard, dirp-data,FindExSearchNameMatch, NULL, 0);if (dirp-handle ! INVALID_HANDLE_VALUE) {/ a directory entry is now waiting in memory /datap dirp-data;dirp-cached 1;} else {/ Failed to open directory: no directory entry in memory /dirp-cached 0;datap NULL;/ Set error code /error GetLastError ();switch (error) {case ERROR_ACCESS_DENIED:/ No read access to directory /dirent_set_errno (EACCES);break;case ERROR_DIRECTORY:/ Directory name is invalid /dirent_set_errno (ENOTDIR);break;case ERROR_PATH_NOT_FOUND:default:/ Cannot find the file /dirent_set_errno (ENOENT);}}return datap; }/** Get next directory entry (internal).** Returns/ static WIN32_FIND_DATAW* dirent_next(_WDIR *dirp) {WIN32_FIND_DATAW p;/ Get next directory entry /if (dirp-cached ! 0) {/ A valid directory entry already in memory /p dirp-data;dirp-cached 0;} else if (dirp-handle ! INVALID_HANDLE_VALUE) {/ Get the next directory entry from stream /if (FindNextFileW (dirp-handle, dirp-data) ! FALSE) {/ Got a file /p dirp-data;} else {/ The very last entry has been processed or an error occurred /FindClose (dirp-handle);dirp-handle INVALID_HANDLE_VALUE;p NULL;}} else {/ End of directory stream reached /p NULL;}return p; }/** Open directory stream using plain old C-string./ static DIR* opendir(const char *dirname) {struct DIR dirp;/ Must have directory name /if (dirname NULL || dirname[0] \0) {dirent_set_errno (ENOENT);return NULL;}/ Allocate memory for DIR structure /dirp (DIR) malloc (sizeof (struct DIR));if (!dirp) {return NULL;}{int error;wchar_t wname[PATH_MAX 1];size_t n;/* Convert directory name to wide-character string /error dirent_mbstowcs_s(n, wname, PATH_MAX 1, dirname, PATH_MAX 1);if (error) {/** Cannot convert file name to wide-character string. This occurs if the string contains invalid multi-byte sequences or* the output buffer is too small to contain the resulting* string./goto exit_free;}/ Open directory stream using wide-character name /dirp-wdirp _wopendir (wname);if (!dirp-wdirp) {goto exit_free;}}/ Success /return dirp;/ Failure / exit_free:free (dirp);return NULL; }/** Read next directory entry./ static struct dirent* readdir(DIR *dirp) {struct dirent entry;/** Read directory entry to buffer. We can safely ignore the return value as entry will be set to NULL in case of error./(void) readdir_r (dirp, dirp-ent, entry);/ Return pointer to statically allocated directory entry /return entry; }/** Read next directory entry into called-allocated buffer.** Returns zero on success. If the end of directory stream is reached, then sets result to NULL and returns zero.*/ static int readdir_r(DIR *dirp,struct dirent *entry,struct dirent result) {WIN32_FIND_DATAW datap;/ Read next directory entry /datap dirent_next (dirp-wdirp);if (datap) {size_t n;int error;/ Attempt to convert file name to multi-byte string */error dirent_wcstombs_s(n, entry-d_name, PATH_MAX 1, datap-cFileName, PATH_MAX 1);/ If the file name cannot be represented by a multi-byte string,* then attempt to use old 83 file name. This allows traditional* Unix-code to access some file names despite of unicode* characters, although file names may seem unfamiliar to the user.** Be ware that the code below cannot come up with a short file* name unless the file system provides one. At least* VirtualBox shared folders fail to do this./if (error datap-cAlternateFileName[0] ! \0) {error dirent_wcstombs_s(n, entry-d_name, PATH_MAX 1,datap-cAlternateFileName, PATH_MAX 1);}if (!error) {DWORD attr;/ Length of file name excluding zero terminator /entry-d_namlen n - 1;/ File attributes /attr datap-dwFileAttributes;if ((attr FILE_ATTRIBUTE_DEVICE) ! 0) {entry-d_type DT_CHR;} else if ((attr FILE_ATTRIBUTE_DIRECTORY) ! 0) {entry-d_type DT_DIR;} else {entry-d_type DT_REG;}/ Reset dummy fields /entry-d_ino 0;entry-d_off 0;entry-d_reclen sizeof (struct dirent);} else {/** Cannot convert file name to multi-byte string so construct an erroneous directory entry and return that. Note that* we cannot return NULL as that would stop the processing* of directory entries completely./entry-d_name[0] ?;entry-d_name[1] \0;entry-d_namlen 1;entry-d_type DT_UNKNOWN;entry-d_ino 0;entry-d_off -1;entry-d_reclen 0;}/ Return pointer to directory entry */result entry;} else {/ No more directory entries */*result NULL;}return /OK/0; }/** Close directory stream.*/ static int closedir(DIR dirp) {int ok;if (dirp) {/ Close wide-character directory stream /ok _wclosedir (dirp-wdirp);dirp-wdirp NULL;/ Release multi-byte character version /free (dirp);} else {/ Invalid directory stream */dirent_set_errno (EBADF);ok /failure/-1;}return ok; }/** Rewind directory stream to beginning./ static void rewinddir(DIR dirp) {/* Rewind wide-character string directory stream /_wrewinddir (dirp-wdirp); }/** Scan directory for entries./ static int scandir(const char *dirname,struct dirent *namelist,int (filter)(const struct dirent),int (*compare)(const struct dirent, const struct dirent**)) {struct dirent files NULL;size_t size 0;size_t allocated 0;const size_t init_size 1;DIR *dir NULL;struct dirent *entry;struct dirent tmp NULL;size_t i;int result 0;/ Open directory stream /dir opendir (dirname);if (dir) {/ Read directory entries to memory /while (1) {/ Enlarge pointer table to make room for another pointer */if (size allocated) {void p;size_t num_entries;/ Compute number of entries in the enlarged pointer table /if (size init_size) {/ Allocate initial pointer table /num_entries init_size;} else {/ Double the size */num_entries size * 2;}/* Allocate first pointer table or enlarge existing table /p realloc (files, sizeof (void) * num_entries);if (p ! NULL) {/* Got the memory */files (dirent) p;allocated num_entries;} else {/* Out of memory /result -1;break;}}/ Allocate room for temporary directory entry /if (tmp NULL) {tmp (struct dirent) malloc (sizeof (struct dirent));if (tmp NULL) {/* Cannot allocate temporary directory entry /result -1;break;}}/ Read directory entry to temporary area */if (readdir_r (dir, tmp, entry) /OK/0) {/* Did we get an entry? /if (entry ! NULL) {int pass;/ Determine whether to include the entry in result /if (filter) {/ Let the filter function decide /pass filter (tmp);} else {/ No filter function, include everything /pass 1;}if (pass) {/ Store the temporary entry to pointer table /files[size] tmp;tmp NULL;/ Keep up with the number of files /result;}} else {/** End of directory stream reached sort entries and exit./qsort (files, size, sizeof (void),(int () (const void, const void)) compare);break;}} else {/ Error reading directory entry */result /Error/ -1;break;}}} else {/* Cannot open directory */result /Error/ -1;}/* Release temporary directory entry /free (tmp);/ Release allocated memory on error /if (result 0) {for (i 0; i size; i) {free (files[i]);}free (files);files NULL;}/ Close directory stream /if (dir) {closedir (dir);}/ Pass pointer table to caller */if (namelist) {namelist files;}return result; }/ Alphabetical sorting */ static int alphasort(const struct dirent **a, const struct dirent **b) {return strcoll ((*a)-d_name, (b)-d_name); }/ Sort versions / static int versionsort(const struct dirent **a, const struct dirent **b) {/ FIXME: implement strverscmp and use that /return alphasort (a, b); }/ Convert multi-byte string to wide character string */ static int dirent_mbstowcs_s(size_t *pReturnValue,wchar_t *wcstr,size_t sizeInWords,const char mbstr,size_t count) {int error;#if defined(_MSC_VER) _MSC_VER 1400/ Microsoft Visual Studio 2005 or later /error mbstowcs_s (pReturnValue, wcstr, sizeInWords, mbstr, count);#else/ Older Visual Studio or non-Microsoft compiler /size_t n;/ Convert to wide-character string (or count characters) /n mbstowcs (wcstr, mbstr, sizeInWords);if (!wcstr || n count) {/ Zero-terminate output buffer /if (wcstr sizeInWords) {if (n sizeInWords) {n sizeInWords - 1;}wcstr[n] 0;}/ Length of resulting multi-byte string WITH zero terminator */if (pReturnValue) {pReturnValue n 1;}/ Success /error 0;} else {/ Could not convert string /error 1;}#endifreturn error; }/ Convert wide-character string to multi-byte string */ static int dirent_wcstombs_s(size_t *pReturnValue,char mbstr,size_t sizeInBytes, / max size of mbstr */const wchar_t wcstr,size_t count) {int error;#if defined(_MSC_VER) _MSC_VER 1400/ Microsoft Visual Studio 2005 or later /error wcstombs_s (pReturnValue, mbstr, sizeInBytes, wcstr, count);#else/ Older Visual Studio or non-Microsoft compiler /size_t n;/ Convert to multi-byte string (or count the number of bytes needed) /n wcstombs (mbstr, wcstr, sizeInBytes);if (!mbstr || n count) {/ Zero-terminate output buffer /if (mbstr sizeInBytes) {if (n sizeInBytes) {n sizeInBytes - 1;}mbstr[n] \0;}/ Length of resulting multi-bytes string WITH zero-terminator */if (pReturnValue) {pReturnValue n 1;}/ Success /error 0;} else {/ Cannot convert string /error 1;}#endifreturn error; }/ Set errno variable / static void dirent_set_errno(int error) { #if defined(_MSC_VER) _MSC_VER 1400/ Microsoft Visual Studio 2005 and later /_set_errno (error);#else/ Non-Microsoft compiler or older Microsoft compiler */errno error;#endif }#ifdef __cplusplus } #endif #endif /DIRENT_H/