type cast in initializer

[rex ballard]

In article <269 at spp3.UUCP> ansok at spp3.UUCP (Gary Ansok) writes:
>
>Are there any other cases where casts are NEEDED besides:
>
>	function calls:  doub_var = sqrt((double) int_var);
>	pointer punning: long_var = *(long *) char_ptr;
>
	Yes, accessing members of structures.
	ie:
	struct x y;
	struct i j;
	i.memb=y.memb;  /* some compilers hate this */
	should be written:
	i.memb= ((struct i)x).memb;

	this is especially true if both structures contain 'memb' but
	'memb' is different type or placement.
	A union is probably preferred.