1 files changed, 35 insertions, 35 deletions

diff --git a/ACE/ace/MQX_Filesystem.cpp b/ACE/ace/MQX_Filesystem.cpp
index 3bdbe3cfb31..f04303d8675 100644
--- a/ACE/ace/MQX_Filesystem.cpp
+++ b/ACE/ace/MQX_Filesystem.cpp
@@ -23,7 +23,7 @@
 MQX_Filesystem MQX_Filesystem::instance_;
 
 MQX_Filesystem::MQX_Filesystem ()
-  : current_fs_ (NULL)
+  : current_fs_ (0)
   , current_fs_name_len_ (0)
   , max_fd_ (255)
   , last_fd_ (-1)
@@ -34,7 +34,7 @@ MQX_Filesystem::MQX_Filesystem ()
   for (unsigned i = 0; i < FOPEN_MAX; i++)
     {
       files_[i].fd = -1;
-      files_[i].mqx_file = NULL;
+      files_[i].mqx_file = 0;
     }
 }
 
@@ -71,9 +71,9 @@ bool
 MQX_Filesystem::reset_state ()
 {
   update_fs (_io_get_first_valid_fs ());
-  if (current_fs_ != NULL)
+  if (current_fs_ != 0)
     chdir ("\\");
-  return current_fs_ == NULL;
+  return current_fs_ == 0;
 }
 
 void
@@ -81,7 +81,7 @@ MQX_Filesystem::update_fs (MQX_FILE_PTR fs)
 {
   current_fs_ = fs;
   bool invalid = false;
-  if (fs == NULL)
+  if (fs == 0)
     invalid = true;
   else if (_io_get_fs_name (fs, current_fs_name_, IOCFG_FS_MAX_DEVLEN) != MQX_OK)
     invalid = true;
@@ -90,7 +90,7 @@ MQX_Filesystem::update_fs (MQX_FILE_PTR fs)
 
   if (invalid)
     {
-      current_fs_ = NULL;
+      current_fs_ = 0;
       current_fs_name_[0] = '\0';
       current_fs_name_len_ = 0;
     }
@@ -135,11 +135,11 @@ MQX_Filesystem::open (const char *path, int mode)
 
   // Set up a new File Entry
   File *file = get_new_file ();
-  if (file == NULL) return -1;
+  if (file == 0) return -1;
 
   // Call into MQX
   file->mqx_file = _io_fopen (abspath, cstdlib_mode);
-  if (file->mqx_file == NULL)
+  if (file->mqx_file == 0)
     {
       file->fd = -1; // Free File in Our Array
       errno = ACE_OS::mqx_error_to_errno (_task_get_error());
@@ -154,7 +154,7 @@ int
 MQX_Filesystem::close (int fd)
 {
   File *file = get_file (fd);
-  if (file == NULL) return -1;
+  if (file == 0) return -1;
   int mqx_error = _io_fclose (file->mqx_file);
   if (mqx_error != MQX_OK)
     {
@@ -168,7 +168,7 @@ size_t
 MQX_Filesystem::read (int fd, unsigned char *buffer, size_t size)
 {
   File *file = get_file (fd);
-  if (file == NULL) return MQX_FILE_ERROR;
+  if (file == 0) return MQX_FILE_ERROR;
   int result = _io_read (file->mqx_file, buffer, size);
   if (result == IO_ERROR)
     {
@@ -182,7 +182,7 @@ size_t
 MQX_Filesystem::write (int fd, const unsigned char *buffer, size_t size)
 {
   File *file = get_file (fd);
-  if (file == NULL) return MQX_FILE_ERROR;
+  if (file == 0) return MQX_FILE_ERROR;
   int result = _io_write (file->mqx_file, const_cast<unsigned char *> (buffer), size);
   if (result == IO_ERROR)
     {
@@ -211,18 +211,18 @@ MQX_Filesystem::lseek (int fd, long offset, int whence)
       return -1;
     }
   File *file = get_file (fd);
-  if (file == NULL) return -1;
+  if (file == 0) return -1;
   return _io_fseek (file->mqx_file, offset, whence) == MQX_OK ? 0 : -1;
 }
 
 char*
 MQX_Filesystem::getcwd (char *buf, size_t size)
 {
-  if (check_state ()) return NULL;
-  if (buf == NULL)
+  if (check_state ()) return 0;
+  if (buf == 0)
     {
       errno = EINVAL;
-      return NULL;
+      return 0;
     }
 
   char curdirtmp[FS_FILENAME_SIZE];
@@ -230,12 +230,12 @@ MQX_Filesystem::getcwd (char *buf, size_t size)
   if (mqx_error != MFS_NO_ERROR)
     {
       errno = ACE_OS::mqx_error_to_errno (mqx_error);
-      return NULL;
+      return 0;
     }
   if ((current_fs_name_len_ + strlen (curdirtmp) + 1) > size)
     {
       errno = ERANGE;
-      return NULL;
+      return 0;
     }
   strcpy (buf, current_fs_name_);
   strcat (buf, curdirtmp);
@@ -245,12 +245,12 @@ MQX_Filesystem::getcwd (char *buf, size_t size)
 MQX_FILE_PTR
 MQX_Filesystem::resolve_fs (const char *path, int *fs_name_len)
 {
-  if (check_state ()) return NULL;
+  if (check_state ()) return 0;
 
-  if (fs_name_len == NULL || path == NULL || path[0] == '\0')
+  if (fs_name_len == 0 || path == 0 || path[0] == '\0')
     {
       errno = EINVAL;
-      return NULL;
+      return 0;
     }
   MQX_FILE_PTR fs;
   char fs_name[IOCFG_FS_MAX_DEVLEN];
@@ -269,7 +269,7 @@ MQX_Filesystem::resolve_fs (const char *path, int *fs_name_len)
   else
     {
       errno = EINVAL;
-      fs = NULL;
+      fs = 0;
     }
   return fs;
 }
@@ -279,7 +279,7 @@ MQX_Filesystem::mkdir (const char *path)
 {
   int fs_name_len;
   MQX_FILE_PTR fs = resolve_fs (path, &fs_name_len);
-  if (fs == NULL) return -1;
+  if (fs == 0) return -1;
   int mqx_error = _io_ioctl (
     fs, IO_IOCTL_CREATE_SUBDIR, (uint32_t*) (path + fs_name_len));
   if (mqx_error != MQX_OK)
@@ -295,7 +295,7 @@ MQX_Filesystem::chdir (const char *path)
 {
   int fs_name_len;
   MQX_FILE_PTR fs = resolve_fs (path, &fs_name_len);
-  if (fs == NULL) return -1;
+  if (fs == 0) return -1;
   if (fs != current_fs_) update_fs(fs);
   int mqx_error = _io_ioctl (fs, IO_IOCTL_CHANGE_CURRENT_DIR,
     (uint32_t*) (path + fs_name_len));
@@ -312,7 +312,7 @@ MQX_Filesystem::rmdir (const char *path)
 {
   int fs_name_len;
   MQX_FILE_PTR fs = resolve_fs (path, &fs_name_len);
-  if (fs == NULL) return -1;
+  if (fs == 0) return -1;
   int mqx_error = _io_ioctl (fs, IO_IOCTL_REMOVE_SUBDIR,
     (uint32_t*) (path + fs_name_len));
   if (mqx_error != MQX_OK)
@@ -328,7 +328,7 @@ MQX_Filesystem::unlink (const char *path)
 {
   int fs_name_len;
   MQX_FILE_PTR fs = resolve_fs (path, &fs_name_len);
-  if (fs == NULL) return -1;
+  if (fs == 0) return -1;
   int mqx_error = _io_ioctl (fs, IO_IOCTL_DELETE_FILE,
     (uint32_t*) (path + fs_name_len));
   if (mqx_error != MQX_OK)
@@ -347,7 +347,7 @@ MQX_Filesystem::rename (const char *oldpath, const char *newpath)
   MQX_FILE_PTR fs = resolve_fs (oldpath, &old_fs_name_len);
   int new_fs_name_len;
   MQX_FILE_PTR other_fs = resolve_fs (newpath, &new_fs_name_len);
-  if (fs == NULL || other_fs == NULL) return -1;
+  if (fs == 0 || other_fs == 0) return -1;
   if (fs != other_fs)
     {
       errno = EXDEV;
@@ -405,7 +405,7 @@ MQX_Filesystem::get_file (int fd)
       if (files_[i].fd == fd) return &files_[i];
     }
   errno = EBADF;
-  return NULL;
+  return 0;
 }
 
 MQX_Filesystem::File *
@@ -413,13 +413,13 @@ MQX_Filesystem::get_new_file ()
 {
   // Get Unused File Struct
   File *file = get_file (-1);
-  if (file != NULL)
+  if (file != 0)
     {
-    file->mqx_file = NULL;
+    file->mqx_file = 0;
     // Get Unused File Descriptor
     for (int fd = last_fd_ + 1; fd != last_fd_; fd++)
       {
-        if (get_file (fd) == NULL)
+        if (get_file (fd) == 0)
           {
             file->fd = fd;
             last_fd_ = fd;
@@ -429,7 +429,7 @@ MQX_Filesystem::get_new_file ()
       }
     }
   errno = ENFILE;
-  return NULL;
+  return 0;
 }
 
 static inline int
@@ -442,7 +442,7 @@ mfs_file_attrs_to_stat_mode (int attributes)
 int
 MQX_Filesystem::stat (const char * path, ACE_stat *statbuf)
 {
-  if (statbuf == NULL)
+  if (statbuf == 0)
     {
       errno = EINVAL;
       return -1;
@@ -450,7 +450,7 @@ MQX_Filesystem::stat (const char * path, ACE_stat *statbuf)
 
   int fs_name_len;
   MQX_FILE_PTR fs = resolve_fs (path, &fs_name_len);
-  if (fs == NULL) return -1;
+  if (fs == 0) return -1;
 
   statbuf->st_size = 0;
   statbuf->st_mtime = 0;
@@ -480,14 +480,14 @@ MQX_Filesystem::stat (const char * path, ACE_stat *statbuf)
 int
 MQX_Filesystem::fstat (int fd, ACE_stat *statbuf)
 {
-  if (statbuf == NULL)
+  if (statbuf == 0)
     {
       errno = EINVAL;
       return -1;
     }
 
   File *file = get_file (fd);
-  if (file == NULL) return -1;
+  if (file == 0) return -1;
 
   statbuf->st_size = 0;
   statbuf->st_mtime = 0;