Title
Modulo 2n arithmetic for implicitly-unsigned types
Status
cd3
Section
6.8.2 [basic.fundamental]
Submitter
Sean Hunt

Created on 2012-07-03.00:00:00 last changed 90 months ago

Messages

Date: 2013-04-15.00:00:00

[Moved to DR at the April, 2013 meeting.]

Date: 2012-10-15.00:00:00

Proposed resolution (October, 2012):

Change 6.8.2 [basic.fundamental] paragraph 4 as follows:

Unsigned integers, declared unsigned, shall obey the laws of arithmetic modulo 2n where n is the number of bits in the value representation of that particular size of integer.46
Date: 2012-07-03.00:00:00

According to 6.8.2 [basic.fundamental] paragraph 4,

Unsigned integers, declared unsigned, shall obey the laws of arithmetic modulo 2n where n is the number of bits in the value representation of that particular size of integer.

It is not clear whether this wording intentionally excludes types like char16_t and char32_t (and, possibly, types char and wchar_t, if those types are unsigned in a given implementation), since the unsigned keyword is not used in their declaration.

History
Date User Action Args
2014-03-03 00:00:00adminsetstatus: drwp -> cd3
2013-10-14 00:00:00adminsetstatus: dr -> drwp
2013-05-03 00:00:00adminsetmessages: + msg4374
2013-05-03 00:00:00adminsetstatus: ready -> dr
2012-11-03 00:00:00adminsetmessages: + msg4045
2012-11-03 00:00:00adminsetstatus: open -> ready
2012-07-03 00:00:00admincreate