◆ FileMemRegions() [1/2]

FileMemRegions	(	const Region< n > &	fileRegion,
		const Position< n > &	memoryPosition = `Position<n>::zero()`
	)

Create a mapping from an in-file region and an in-memory position.

The shape of the in-memory region is deduced from that of the in-file region. This constructor is not marked explicit, which allows casting from a Region.