Title
Value of preprocessing numbers
Status
cd2
Section
5.9 [lex.ppnumber]
Submitter
UK

Created on 2009-03-03.00:00:00 last changed 143 months ago

Messages

Date: 2009-10-15.00:00:00

[Voted into WP at October, 2009 meeting.]

Date: 2009-07-15.00:00:00

Proposed resolution (July, 2009):

Change 5.9 [lex.ppnumber] paragraph 2 as follows:

A preprocessing number does not have a type or a value; it acquires both after a successful conversion (as part of translation phase 7 (5.2 [lex.phases])) to an integral literal token or a floating literal token.
Date: 2009-03-03.00:00:00
N2800 comment UKĀ 13

5.9 [lex.ppnumber] paragraph 2 says,

A preprocessing number does not have a type or a value; it acquires both after a successful conversion (as part of translation phase 7, 5.2 [lex.phases]) to an integral literal token or a floating literal token.

However, preprocessing directives are executed in phase 4, and the evaluation of constant-expressions in #if directives requires that preprocessing numbers have values.

History
Date User Action Args
2010-03-29 00:00:00adminsetstatus: dr -> cd2
2009-11-08 00:00:00adminsetmessages: + msg2417
2009-11-08 00:00:00adminsetstatus: ready -> dr
2009-08-03 00:00:00adminsetmessages: + msg2135
2009-08-03 00:00:00adminsetstatus: open -> ready
2009-03-03 00:00:00admincreate