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fopen
| Example: fopen | Input-Output Functions |
Opens a file for buffered I/0.
long fopen( const char *filename, const char *access_mode);
| filename | The name of the file to open. |
| access_mode | The type of access mode: r, w, a or r+, w+, a+, where the "+" sign indicates that the file must already exist. |
The fopen access_mode parameter serves also to specify whether to open the file as text or binary, adding t or b characters to this access mode string.
| t | Text mode. In text mode the end of file is assumed to be at first Ctrl+Z character. Some conversions can occur reading and writing with End Of Line / Feedback characters depending on your compiler and your Operating System. |
| b | Binary mode. End of file is reached at last byte of the file. No conversions. |
Return Values
If the file has been successfully opened the function will return a pointer to the file. Otherwise it returns a NULL pointer.
