Different types of access mode used in File Handling in C programming.

 

Different type of values of Access Mode in opening / creating file in File Handling in C Programming.

Which are as follows:

 

1)"w":   First value of Access mode is “w”.This value indicates that the file is just opened for writing content into file. We can write content but we cannot read content of that file. If file already exist then content of file is overwritten else new file will be created.

 

2  2)"r":   In this mode we can open a file and can only read (cannot write) the content of that file. The file must exist before using this mode.

 

 

    3)   “a”:  Here “a” indicates “appending” means (write content at the end of any file).  If file does not exist, is created if possible.

  

   4)   “w+”:  This mode is used to create text file for both reading and writing content of any file. If file exist, content of file is overwritten.

 

    5)   “r+”:  Working of this mode is similar as “w+” but major difference is that to use this mode file must exist.

 

    6)   “a+”: This mode is used to open text file for reading and appending content of file.

 

 

These all modes are used in case of opening text file.