Returns a nonzero integer if an error occurred while reading or
writing a file.
Format
#include <stdio.h>
int ferror (FILE *file_ptr);
Argument
- file_ptr
- A file pointer.
Description
A call to ferror continues to return a nonzero integer until
the file is closed or until clearerr is called.
Return Values
| 0 | Indicates success. |
| nonzero integer | Indicates that an error has
occurred. |
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