outcome v2.1.5 Release NotesRelease Date: 2020-12-11 // 3 months ago
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Previous changes from v2.1.4
🚀 v2.1.4 14th August 2020 (Boost 1.74) [release]
💥 BREAKING CHANGE
voidresults and outcomes no longer default construct types during explicit construction
: Previously if you explicitly constructed a
result<T>from a non-errored
result<void>, it default constructed
T. This was found to cause unhelpful
surprise, so it has been disabled.
: The macro
OUTCOME_ENABLE_LEGACY_SUPPORT_FOR` can be used to
enable aliasing of older naming and features to newer naming and features when
using a newer version of Outcome.
💅 Concepts now have snake case style naming instead of camel case style
: When Outcome was first implemented, it was thought that C++ 20 concepts were
🚀 going to have camel case style. This was changed before the C++ 20 release, and
Outcome's concepts have been renamed similarly. This won't break any code in
Outcome v2.1, as compatibility aliases are provided. However code compiled
against Outcome v2.2 will need to be upgraded, unless
is set to
Concepts now live in
: Previously concepts lived in the
convertnamespace, now they live in their
: End users were finding an unhelpful gap in between
value_or_error<T>where they wanted a concept that matched
types which were
basic_result, but not exactly one of those. Concepts filling
that gap were added.
TRYworks differently from Outcome v2.2 onwards
: This is a severely code breaking change which change the syntax of how one uses
OUTCOME_TRY(). A regular expression suitable for upgrading code can be found in
the list of changes between Outcome v2.1 and v2.2.
🐛 Bug fixes:
✅ : The clang Apple ships in Xcode 11.4 (currently the latest) has not been patched
🛠 with the fixes to LLVM clang that fix
failing to compile which I originally submitted years ago. So give up waiting on
↪ Apple to fix their clang, add a workaround to Outcome.
Spare storage could not be used from within no-value policy classes
: Due to an obvious brain fart when writing the code at the time, the spare storage
APIs had the wrong prototype which prevented them working from within policy classes.