Subject: [isocpp-edit] Use of term structure instead of class
Date: Tue, 7 Aug 2018 17:43:21 +0900
From: Ryou Ezoe boostcpp@gmail.com

I noticed that current latest draft(N4750) still use the term
"structure" instead of "class".

The term "structure" as in defined in C Standard. But it isn't defined
in the C++ standard. C++ use the term "class". But there are some
places still use the term structure to mean class. And context doesn't
relies on C standard at all.

$ 6.6.1 p5

[ Example: A structure declared as

This structure shall be class.

$ 23.4.5 p1

The struct piecewise_construct_t is an empty structure type used as...

$ 23.6.4 p1

The struct nullopt_t is an empty structure type used as ...

$ 23.10.7 p1

The allocator_arg_t struct is an empty structure type used as ...

These structure shall be class.

$ 23.17.10.4.1 p1

A sys_info structure can be obtained from

$ 23.17.10.4.1 p2

Typical conversions from sys_time to local_time will use this structure implicitly, not explicitly.

$ 23.17.10.4.2 p1

Typical conversions from sys_time to local_time will use this structure implicitly, not explicitly.

These structure shall be class.

Table 121

no sub-expression matches shall be stored in the supplied match_results structure.

This structure shall be class.

I don't understand how could the wording introduced after C++11 still
use the term structure.

The usage I think it should be retained.

There are three occurrences of "structure" as "POSIX stat structure"
in filesystem.

On POSIX platforms, this is determined as if by the values of the POSIX stat structure,
determined as if by the value of the POSIX stat structure member st_size
determined as if by the value of the POSIX stat structure member st_mtime

The index has structure. linked to page 214($12 Class).

I think this should be retained too but $12 Class has no mention of
the term structure.