clearerr

Resets error indication.

Defined in header <stdio.h>

Syntax

#include <stdio.h>
void clearerr(FILE *stream);

Portability

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 retui-n 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.

See also

• eof
• feof
• terror
• perror
• rewind

Example

#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;

Differences from modern implementations

Nothing recorded yet.

Modern references

• cppreference (search)
• POSIX (search)
• Microsoft C runtime (search)

These are search links, not yet checked by hand.

Stable link: /3.1/stdio.h/clearerr/ · short form /3.1/clearerr/