* [9fans] ZP in libdraw
@ 2002-09-02 17:38 Skip Tavakkolian
0 siblings, 0 replies; 3+ messages in thread
From: Skip Tavakkolian @ 2002-09-02 17:38 UTC (permalink / raw)
To: 9fans
Is ZP != Pt(0,0) ever? Is there a specific use for it?
Documentation doesn't say anything about it and I
can't see where it is getting initialized.
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [9fans] ZP in libdraw
@ 2002-09-03 2:08 Russ Cox
0 siblings, 0 replies; 3+ messages in thread
From: Russ Cox @ 2002-09-03 2:08 UTC (permalink / raw)
To: 9fans
ZP == Pt(0,0). It's just convenient not to force
the compiler to construct it, and it's shorter.
It's not initialized anywhere, hence it is zero.
I suppose it could be != Pt(0,0) if you assigned
to it, but that would break most code that uses it.
It's no good if the zero point isn't zero.
Russ
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [9fans] ZP in libdraw
@ 2002-09-02 23:50 Skip Tavakkolian
0 siblings, 0 replies; 3+ messages in thread
From: Skip Tavakkolian @ 2002-09-02 23:50 UTC (permalink / raw)
To: 9fans
I was being overly suspicious because almost all examples of calls to
draw() that I could find in sources were using ZP and not Pt(0,0). I
find Pt(0,0) more transparent.
> ZP == Pt(0,0). It's just convenient not to force
> the compiler to construct it, and it's shorter.
> It's not initialized anywhere, hence it is zero.
^ permalink raw reply [flat|nested] 3+ messages in thread
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