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C Language: ferror function
(Test for File Error)

In the C Programming Language, the ferror function tests to see if the error indicator has been set for a stream pointed to by stream.

Syntax

The syntax for the ferror function in the C Language is:

int ferror(FILE *stream);

Parameters or Arguments

stream

The stream whose error indicator is to be tested.

Returns

The ferror function returns a nonzero value if the error indicator is set. Otherwise, it returns zero.

Required Header

In the C Language, the required header for the ferror function is:

#include <stdio.h>

Applies To

In the C Language, the ferror function can be used in the following versions:

• ANSI/ISO 9899-1990

Similar Functions

Other C functions that are similar to the ferror function:

• feof function <stdio.h>

See Also

Other C functions that are noteworthy when dealing with the ferror function:

• clearerr function <stdio.h>
• rewind function <stdio.h>