Public Comment Number PC-UK0115

ISO/IEC CD 9899 (SC22N2620) Public Comment

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Date: 1998-02-25
Author: N.M Maclaren
Author Affiliation: Self
Postal Address:
    University of Cambridge,
    Computer Laboratory,
    New Museums Site,
    Pembroke Street,
    Cambridge CB3 3QG,
    United Kingdom
E-mail Address: <nmm1@cam.ac.uk>
Telephone Number: +44 1223 334761
Fax Number:       +44 1223 334679
Number of individual comments: 1


Comment 1. 

Category: Request for information/clarification

Committee Draft subsection: 7.19.4.5.7

Title: Ambiguity in the wcstok function


Detailed description:

I am utterly baffled by the second sentence in paragraph 3: "If s1 is a
null pointer, the value pointed to by ptr shall match that stored by the 
previous call for the same wide string; otherwise the value pointed to by 
ptr is ignored."  The only purpose that I can see for the ptr argument is
to avoid wcstok needing internal storage, yet this sentence reintroduces
the need for internal storage to check the value of ptr!  Either I have
missed something crucial, or this needs attention.