File Modes In C

Posted by Naresh Kumar at 4/05/2009 09:33:00 AM

r - open a file in read-mode, set the pointer to the beginning of the file.
w - open a file in write-mode, set the pointer to the beginning of the file.
a - open a file in write-mode, set the pointer to the end of the file.
rb - open a binary-file in read-mode, set the pointer to the beginning of the file.
wb - open a binary-file in write-mode, set the pointer to the beginning of the file.
ab - open a binary-file in write-mode, set the pointer to the end of the file.
r+ - open a file in read/write-mode, if the file does not exist, it will not be created.
w+ - open a file in read/write-mode, set the pointer to the beginning of the file.
a+ - open a file in read/append mode.
r+b - open a binary-file in read/write-mode, if the file does not exist, it will not be created.
w+b - open a binary-file in read/write-mode, set the pointer to the beginning of the file.
a+b - open a binary-file in read/append mode.

C - Programming