Datatype Path
[Urlan Datatype System]

Functions
int	ur_pathCell (UThread *ut, const UCell *pc, UCell *res)
	Get the value which a path refers to.
int	ur_setPath (UThread *ut, const UCell *path, const UCell *src)
	Set path.

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Function Documentation

int ur_pathCell	(	UThread *	ut,
		const UCell *	pc,
		UCell *	res
	)

Get the value which a path refers to.

Parameters:

	pc	Valid UT_PATH cell.
	res	Set to value at end of path.

Returns:

UT_WORD/UT_GETWORD/UR_THROW

int ur_setPath	(	UThread *	ut,
		const UCell *	path,
		const UCell *	src
	)

Set path.

This copies src into the cell which the path refers to.

If any of the path words are unbound (or bound to the shared environment) then an error is generated and UR_THROW is returned.

Parameters:

	path	Valid path cell.
	src	Source value to copy.

Returns:

UR_OK/UR_THROW

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