Bug in TC2-XBD <sys/types.h> (key_t)

["Michael T Kerrisk" <yyyyyyyyy@xxxxxxx>]

@ page <372> line <13070> section <no.> comment

Problem:
In XBD <sys/types.h> we find the following the statment that key_t need 
not be an arithmetic type:

    13068 All of the types shall be defined as arithmetic types 
          of an appropriate length, with the following
    13069 exceptions:
    13070 XSI key_t

But in the description of "Data Types" in XSH (Section 2.12), we find the
following contradictory statement:

    3363 key_t Arithmetic type used for XSI interprocess 
         communication.

Geoff Clare privatetly noted to me:

> Since ftok() returns (key_t)-1 on error, I think that if it is not an
> arithmetic type then the only other thing it could be is a pointer.

Action:

Remove line 13070 "XSI key_t" from TC2-XBD

Cheers,

Michael

-- 
Michael Kerrisk
yyyyyyyyy@xxxxxxx

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