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.Last update: 10 April,2001
1003.1-96 #111
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Interpretation Number: XXXX
Topic: signal concepts
Relevant Sections: p78 line 870, p79 line 883
PASC Interpretation Request: (Defect Report)
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Date: 2000 June 16
Ref: XSH 20
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7 Defect Report concerning (number and title of International Standard
or DIS final text, if applicable):
IEEE Std 1003.1-1996 (incorporates 1003.1-1990, 1003.1b-1993, 1003.1c-1995,
1003.1i-1995) (ISO 9945-1:1996)
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8 Qualifier (e.g. error, omission, clarification required):
3
Error=1 , Omission=2, Clarification=3
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9 References in document (e.g. page, clause, figure, and/or table
numbers):
P78 L870
P79 L883
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10 Nature of defect (complete, concise explanation of the perceived
problem):
At 870, there's the "with a single exception clause".
At 883 in the sentence beginning with "If" would seem to disallow
that exception. (That is, if a return is executed by the handler,
all would seem to be required to work right, regardless of what
went before.)
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11 Solution proposed by the submitter (optional):
Replace the sentence with a pointer to the discussion of signal-safe
and unsafe functions.
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Interpretation response
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The standard is unclear on this issue, and no conformance distinction
can be made between alternative implementations based on this. This is
being referred to the sponsor.
Rationale
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None.
Notes to project editor (not part of this interpretation):
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Add "except as ..." on line 870: "...except as noted
for unsafe functions".
Forwarded to Interpretations group: 19 June 2000
Proposed resolution: 25 July 2000
Finalised interpretation: 29 August 2000