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| author | Richard Smith <richard-llvm@metafoo.co.uk> | 2015-02-20 00:28:54 +0000 |
|---|---|---|
| committer | Richard Smith <richard-llvm@metafoo.co.uk> | 2015-02-20 00:28:54 +0000 |
| commit | 903ededb4909330e28ac485e0bdd8293c4a47a0a (patch) | |
| tree | f88ed40263c78cb47af414662d23e9be7141f838 | |
| parent | 0a431cf9fa4b6abb73f4dbec296ce0068bcb5b19 (diff) | |
A few release note updates for C and C++ frontend changes.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/branches/release_36@229939 91177308-0d34-0410-b5e6-96231b3b80d8
| -rw-r--r-- | docs/ReleaseNotes.rst | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/docs/ReleaseNotes.rst b/docs/ReleaseNotes.rst index 72712af13f..e5c748db46 100644 --- a/docs/ReleaseNotes.rst +++ b/docs/ReleaseNotes.rst @@ -105,16 +105,27 @@ Windows Support C Language Changes in Clang --------------------------- -... +- The default language mode for C compilations with Clang has been changed from + C99 with GNU extensions to C11 with GNU extensions. C11 is largely + backwards-compatible with C99, but if you want to restore the former behavior + you can do so with the `-std=gnu99` flag. C11 Feature Support ^^^^^^^^^^^^^^^^^^^ -... +- Clang now provides an implementation of the standard C11 header `<stdatomic.h>`. C++ Language Changes in Clang ----------------------------- +- An `upcoming change to C++ <http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2014/n3922.html>_` + changes the semantics of certain deductions of `auto` from a braced initializer + list. Following the intent of the C++ committee, this change will be applied to + our C++11 and C++14 modes as well as our experimental C++17 mode. Clang 3.6 + does not yet implement this change, but to provide a transition period, it + warns on constructs whose meaning will change. The fix in all cases is to + add an `=` prior to the left brace. + - Clang now supports putting identical constructors and destructors in the C5/D5 comdat, reducing code duplication. |