"Dale E. Martin" <[EMAIL PROTECTED]> writes: > Is there some magic value I can write into "flag", that in combination with > the understanding of how 64 bit pointers get truncated down to 48 bit > virtual addresses that will allow me to store either a 7 byte string or a > char * in the same space?
You could use the least significant bit(s) since pointers are aligned on certain (4 byte?) boundaries. I think Guile Scheme uses this same trick (on 32 bits) to flag if the pointer stores an address or a small integer value. You might look into how they do it. -Brett. -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
