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- Submitted-by: rml@hpfcdc.fc.hp.com (Bob Lenk)
-
- In article <131021@uunet.UU.NET>, phil@cs.wwu.edu (Phil Nelson) writes:
-
- > 1) The character '-' "shall" be recognized as both the token
- > ADD_OP and the token '-'.
- > lines: 1587, 1670, 1737, 1738, 1749-1751
-
- The intention is that the minus character can be recognized as either
- unary minus or as a binary operator (with the same precedence as
- the other ADD_OP, binary +). The lexical specification is indeed
- ambiguous and incorrect.
-
-
- > 2) Lines 1642-1644 are
- > parameter_list : LETTER
- > | define_list ',' LETTER
- > I presume it should be
- > parameter_list : LETTER
- > | parameter_list ',' LETTER
-
- This was an error in preparation of Draft 10. The presumption is
- correct.
-
-
- > 3) Lines 1836-1838 state "A whole array passed as an argument
- > shall be specified by the array name followed by empty square
- > brackets."
- > a) I find no provision in the grammar in the definition of the
- > parameter list define a parameter as an array. (See lines
- > 1642-1644.)
- > b) No provision is made in the grammar for the specification of
- > an array in the actual function call. (See 1657-1659.)
-
- This was also an error in the preparation of Draft 10. The sentence in
- question was intended to be deleted. A reference to this feature in
- the grammar was deleted. This feature has been documented but not
- implemented in all historical versions of bc I have encountered.
-
- I was the terchnical editor for bc during the ballot that produced Draft
- 10. The three errors noted above are mine. It is interesting that they
- have gone unnoticed for this long (Draft 10 was distributed last summer,
- and a full ballot recirculation has completed).
-
- I am forwarding this message to the chair of P1003.2, effectively as
- ballot comments. Note that they do not include a resolution for problem
- (1). Those comments and this posting are made strictly as an
- individual.
-
- Bob Lenk
- rml@fc.hp.com
- {uunet,hplabs}!fc.hp.com!rml
-
-
- Volume-Number: Volume 23, Number 58
-
-