C - File Operation : Close a File
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When we have finished reading from the file, we need to close it. This is done using the function fclose() through the statement.
fclose ( fp ) ;
Once we close the file we can no longer read from it using getc() unless we reopen the file.
Declaration of fclose( ) Function
int fclose(FILE * fptr); // The fclose() function is used for closing opened files. The only argument it accepts is the file pointer.
| File mode | Description |
| r | Open a text file for reading |
| w | Create a text file for writing, if it exists, it is overwritten |
| a | Open a text file and append text to the end of the file |
| rb | Open a binary file for reading |
| wb | Create a binary file for writing, if it exists, it is overwritten |
| ab | Open a binary file and append data to the end of the file |
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