FILE *fp[]; /* is this possible? */

[Kim Christian Madsen]

weimer at ssd.kodak.com (Gary Weimer) writes:

>for(i=0;i!=256;i++)
>    if ((fp[i]=fopen(file_name[i],"r+")) <= 0)  /* some will probably     */
>                                                /* complain about using   */
>						 /* <= 0                   */

YES, for more than one reason:


	1) fopen returns a FILE * and should be tested against the constant
	   NULL, or (FILE *) NULL if you want explicit casting.

	2) If the pointer returned by fopen points to a memory location in
	   the high end it is very possible that when converted to an int
	   for the comparison it will be negative.

						Kim Chr. Madsen