WG15 Defect Report Ref: 13210-04
Topic: link() and PCD_LINK_FILE_SYSTEM


This is an approved interpretation of 13210:1994.

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Last update: 1997-05-20


								13210-92  #4

	Classification:  Editorial defect

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	Topic:			link() and PCD_LINK_FILE_SYSTEM
	Relevant Sections:	p117n65/6


Defect Report:
-----------------------

POSIX 13210 states:

       Page 177, lines 1393-1403.


	 65(C) If {PCD_LINK_FILE_SYSTEM} is FALSE:
		   When	the link named by new and the file named by
		   existing are	on different file systems, then	a
		   call	to link(existing, new) returns a value of
		   (int)-1, sets errno to [EXDEV], creates no link,
		   and the link	count of the file referenced by
		   existing remains unchanged.

	 66(C) If {PCD_LINK_FILE_SYSTEM} is not	documented:
		   When	the link named by new and the file named by
		   existing are	on different file systems, then	a
		   call	to link(existing, new) is either successful
		   or returns a	value of [(int)-1], sets errno to
		   [EXDEV], creates no link, and the link count	of
		   the file referenced by existing remains
		   unchanged.

Problem:
       These assertions	require	a second file system to	test the
       assertion.  The availability of a second	file system is a
       "testing	constraint".

Action:
       Replace in each assertion above "(C)" with "(PCTS_FS?C:UNTESTED)".
       Also, add to the	"Testing Constraints", Table 1.1, page 9, line 292 
       the entry:
	   "PCTS_FS	  Implementation provides another file system."

WG15 response for 13210:1994
-----------------------------------

The problem and actions statements are accepted as written.
The standard does not completely specify the testing constraints for these
assertions. This is an editorial omission. This will be documented in
an errata for the document and also referred to the
sponsor for clarifying wording in the next amendment, with the suggested
action being the action stated in the original text above.

Rationale for Interpretation:
-----------------------------
None.

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