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Synopsis:
    #include <stdio.h>
    int ferror( FILE *fp );

Description:
    The ferror function tests the error indicator for the stream pointed to
    by fp.

Returns:
    The ferror function returns non-zero if the error indicator is set for
    fp.

See Also:
    clearerr, feof, perror, strerror

Example:
    #include <stdio.h>

    void main()
      {
        FILE *fp;
        int c;

        fp = fopen( "file", "r" );
        if( fp != NULL ) {
          c = fgetc( fp );
          if( ferror( fp ) ) {
            printf( "Error reading file\n" );
          }
        }
        fclose( fp );
      }

Classification:
    ANSI

Systems:
    All