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BDE 2.23 Release Notes
The BDE 2.23 release branch has pushed to github.
BDE 2.23.0 introduces the open-source date and time types in the library
bdlt. This includes a series of vocabulary types for describing dates and
times (e.g., bdlt::Date, bdlt::Time, bdlt::Datetime) as well as a series
of utilities for manipulating and creating date and time values (e.g.,
bsls::SystemTime, bdlt::CurrentTime, bdlt::DateUtil).
Support for Globally Unique Identifiers
(GUIDs, version 4 per RFC 4122)
have been added to the bdlb package.
The two new components, bdlb_guid and bdlb_guidutil,
allow callers to represent and generate these unique 128-bit values.
The bslx package is a successor to bdex.
The new package also supports the BDEX concept
(i.e., one can bslx stream classes with
bdexStreamIn and bdexStreamOut methods),
and the resulting wire-formats are compatible with those from bdex.
The new package provies safer handling for versioning of streaming operators.
BDE 2.23 introduces the type bsl::reference_wrapper, and the functions
bsl::ref and bsl::cref.
These provide a partial implementation of those C++11 types.
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Now Supported: The storage of references within functors (e.g.,
bdef_Function) and containers (e.g.,bsl::vector). -
Not Yet Supported: Callable references to functors and functions.
BDE 2.23.0 provides an implementation of bsl::hashAppend, and by extension
bsl::hash, for bsl::pair.
The new component, bdlma_localsequentialallocator,
simplifies the creation of a stack-aligned buffered-sequential allocator.