Section: 22.2 [utility] Status: NAD Submitter: BSI Opened: 2010-08-25 Last modified: 2016-01-28
Priority: Not Prioritized
View all other issues in [utility].
View all issues with NAD status.
Discussion:
Addresses GB-79
The library provides several traits mechanisms intended a customization points for users. Typically, they are declared in headers that are growing quite large. This is not a problem for standard library vendors, who can manage their internal file structure to avoid large dependencies, but can be a problem for end users who have no option but to include these large headers.
[ 2010 Rapperswil ]
There was no enthusiasm for touching char_traits or regex_traits.
Consensus to move iterator_traits, allocator_traits
and pointer_traits to their own respective headers once wording supplied.
[ 2010 Rapperswil ]
After some discussion, consensus is that moving these features into separate headers does not buy much in practice, as the larger headers will inevitably be included anyway. Resolve as NAD.
[ Resolution proposed in ballot comment ]
Move the following traits classes into their own
headers, and require the existing header to
#include the traits header to support backwards
compatibility:
iterator_traits (plus the iterator tag-types) allocator_traits pointer_traits char_traits regex_traits
[ 2010 Batavia: ]
Closed as NAD with the rationale below.
Rationale:
This suggest is not a defect, as the likely benefit is small, if any, compared to the cost of not just implementating the feature, but also explaining/teaching it.
Proposed resolution: