Clearerr : C language stdio.h function

Clearerr

Resets error indication

 Declaration:  void clearerr(FILE *stream);

 Remarks:

clearerr resets the named stream's error and end-of-file indicators to 0.

Once the error indicator is set, stream operations continue to return error

status until a call is made to clearerr or rewind.

The end-of-file indicator is reset with each input operation.

 Return Value:  None

 Portability:

UNIX Yes

ANSI Yes

C++ Only

#include <stdio.h>

int main(void)

{

   FILE *fp;

   char ch;

   /* open a file for writing */

   fp = fopen("DUMMY.FIL", "w");

   /* force an error condition by attempting to read */

   ch = fgetc(fp);

   printf("%c\n",ch);

   if (ferror(fp))

   {

      /* display an error message */

      printf("Error reading from DUMMY.FIL\n");

      /* reset the error and EOF indicators */

      clearerr(fp);

   }

   fclose(fp);

   return 0;

}

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