Closes a file by flushing any buffers associated with the file control block and freeing the file control block and buffers previously associated with the file pointer.
#include <stdio.h> int fclose (FILE *file_ptr);
The fclose function tries to write buffered data by using an implicit call to fflush.
If the write fails (because the disk is full or the user's quota is exceeded, for example), fclose continues executing. It closes the VMS channel, deallocates any buffers, and releases the memory associated with the file descriptor (or FILE pointer). Any buffered data is lost, and the file descriptor (or FILE pointer) no longer refers to the file.
If your program needs to recover from errors when flushing buffered data, it should make an explicit call to fsync (or fflush) before calling fclose.
| 0 | Indicates success. |
| EOF | Indicates that the file control block is not associated with an open file. |