On 19 Oct 96, Adam Fitzpatrick wrote to Paul Wankadia --

 AF> PW>What would I have to do?  Use strdup() to duplicate the string
 AF> locally PW>and then sizeof() that duplicate string perhaps???
 AF> since strdup returns a char*, it would have the same result - and the

Yup.  You're a little behind the times, Adam :)

 AF> allocated memory would be strlen(String)+1 (ie, the amount of memory
 AF> required by whatever string was stored in String at the time), not 100
 AF> (the actual size of the array).

Uh huh...  I've decided to stay with passing the maximum length to the
function.  Thanks :)

 AF> FA>So sizeof() will return the length of the pointer.
 AF> PW>I seem to get 2...
 AF> I presume you're using DOS with the small memory model then. A two
 AF> byte pointer is a near pointer, giving you up to 64k to address.

Yep.  SMALL model it is...

 AF> PW>BTW how can I make a pointer to point to a set place in memory
 AF> (i.e. PW>segment and offset) ???
 AF> You'd need a far pointer. To make far char *st point to 1234:5678,
 AF> you'd use st=(far char*)0x12345678. (I haven't needed to do this for a
 AF> while, so my memory's a little hazy; it might be char far*).

I think it's "char far *"...

 AF> Your compiler may also provide a function or macro to do this more
 AF> neatly - have a look in dos.h.

Yep.  Borland seems to have MK_FP and stuff like that.  Thanks, Borland :)

 AF> ... MicroSloth: "Bringing you ten-year-old technology,
tomorrow, maybe."

... MicroScum : How many times do you want to crash your computer today?

Chow.

Junyer Hakker.

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