Bug or not ?

[Marcin 'Qrczak' Kowalczyk]

Sat, 05 May 2001 05:21:14 +0930, PoD <pod at internode.on.net> pisze:

> Is there a reason for the current behaviour being desirable?
> [[0]*height]*width seems like an obvious way to make a 2D array.

list*number repeats elements of the list, but it doesn't make deep
copies of them. Deep copying is rarely needed, hard to define and
inefficient. It never happens by default - it's a long library
function, not a natural primitive operation. Usually the amount of
copying is coded explicitly, with rebinding references elsewhere.

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QRCZAK