what is this [0 ... n] array notation?

["Robert P. J. Day" <rpjday@xxxxxxxxxxxxxx>]

  i've noticed a number of files in the source tree that define arrays
with what is clearly a range notation, such as:

drivers/scsi/ipr.c:
	const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' };

where does this "..." range syntax come from?  i know gcc supports the
*case* range extension, but i don't know where the above *arrray*
range syntax comes from.

  help?

rday

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