Jens Gustedt, INRIA and ICube, France
2024年12月01日
integration into IS ISO/IEC 9899:202y
| document number | date | comment |
|---|---|---|
| n3413 | 202412 | Original proposal |
CC BY, see https://creativecommons.org/licenses/by/4.0
The current wording in 5.3.5.3.2 has lead to misunderstandings, in
particular it had not been clear to implementations that the provided
values are further constrained later by specific properties of certain
integer types, in particular for bool. We propose to
clarify this by making it explicit how the properties (width) and the
macros (_WIDTH) relate.
New text is (追記) underlined green (追記ここまで), removed text is
(削除) stroke-out red (削除ここまで).
5.3.5.3.2 Characteristics of integer types
<limits.h>(追記) and<stdint.h>(追記ここまで)
1 (追記) Each integer type (6.2.5) that is defined by this document and that is not a bit-precise integer type has a corresponding width macro with a name ending in
_WIDTH. The values of these macros provide the number of bits in the value representation of the type (6.2.6.2). (追記ここまで) The values given subsequently shall be replaced by constant expressions suitable for use in conditional expression inclusion preprocessing directives.(削除) Their implementation-defined values (削除ここまで)(追記) Those of the values that are implementation-defined (追記ここまで) shall be equal or greater to those shown(追記) ; otherwise the values shall be exact (追記ここまで).
Thanks to Aaron Ballman for discussion and feedback.