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Fix #94 and remove compiler bug workarounds. - #175

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Stephan T. Lavavej (StephanTLavavej) merged 1 commit into
microsoft:masterfrom
StephanTLavavej:workarounds
Oct 15, 2019
Merged

Stephan T. Lavavej (StephanTLavavej) merged 1 commit into
microsoft:masterfrom
StephanTLavavej:workarounds

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Description

  • Properly comment "Tukey's ninther".

  • Remove workarounds for VSO-946746.

VSO-946746 "conditional explicit(bool) doesn't work with /clr:pure"
was fixed on 2019-07-23, and should be available in
VS 2019 16.4 Preview 1.

VSO-433486 "_Count / 2 inside while (0 < _Count) loop is not
transformed into a simple shift" was fixed on 2019-08-27
and should be available in VS 2019 16.4 Preview 2.

Some shifts are still necessary, and are now commented.

Checklist

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If a box isn't applicable, add an explanation in bold.
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  • I understand README.md. I also understand that acceptance of
    community PRs will be delayed until the test and CI systems are online.
  • If this is a feature addition, that feature has been voted into the
    C++ Working Draft. (N/A, no features)
  • Identifiers in product code changes are properly _Ugly as per
    https://eel.is/c++draft/lex.name#3.1 .
  • The STL builds successfully and all tests have passed (must be manually
    verified by an STL maintainer before CI is online, leave this unchecked for
    initial submission).
  • These changes introduce no known ABI breaks (adding members, renaming
    members, adding virtual functions, changing whether a type is an aggregate
    or trivially copyable, etc.).
  • These changes were written from scratch using only this repository and
    the C++ Working Draft as a reference (and any other cited standards).
    If they were derived from a project that's already listed in NOTICE.txt,
    that's fine, but please mention it. If they were derived from any other
    project (including Boost and libc++, which are not yet listed in
    NOTICE.txt), you must mention it here, so we can determine whether the
    license is compatible and what else needs to be done.

* Properly comment "Tukey's ninther".

* Remove workarounds for VSO-946746.

VSO-946746 "conditional explicit(bool) doesn't work with /clr:pure"
was fixed on 2019-07-23, and should be available in
VS 2019 16.4 Preview 1.

* Remove workarounds for VSO-433486.

VSO-433486 "_Count / 2 inside while (0 < _Count) loop is not
transformed into a simple shift" was fixed on 2019-08-27
and should be available in VS 2019 16.4 Preview 2.

Some shifts are still necessary, and are now commented.

* This mirrors a Microsoft-internal PR:
https://devdiv.visualstudio.com/DevDiv/_git/msvc/pullrequest/207988
@StephanTLavavej
Stephan T. Lavavej (StephanTLavavej) merged commit 53cdb9f into microsoft:master Oct 15, 2019
fengjixuchui added a commit to fengjixuchui/STL that referenced this pull request Oct 16, 2019
Fix microsoft#94 and remove compiler bug workarounds. (microsoft#175)
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2 participants