Implement feature test macros using a script.
Summary:
This patch implements all the feature test macros libc++ currently supports, as specified by the standard or cppreference prior to C++2a.
The tests and `<version>` header are generated using a script. The script contains a table of each feature test macro, the headers it should be accessible from, and its values of each dialect of C++.
When a new feature test macro is added or needed, the table should be updated and the script re-run.
Reviewers: mclow.lists, jfb, serge-sans-paille
Reviewed By: mclow.lists
Subscribers: arphaman, jfb, ldionne, libcxx-commits
Differential Revision: https://reviews.llvm.org/D56750
llvm-svn: 351286
Cr-Mirrored-From: sso://chromium.googlesource.com/_direct/external/github.com/llvm/llvm-project
Cr-Mirrored-Commit: 32784a740a0282dc6f4390b683ed6c6516f4d66c
diff --git a/docs/index.rst b/docs/index.rst
index bb56f2d..fddf74b 100644
--- a/docs/index.rst
+++ b/docs/index.rst
@@ -40,6 +40,11 @@
TestingLibcxx
+.. toctree::
+ :hidden:
+
+ FeatureTestMacroTable
+
Current Status
--------------
@@ -107,6 +112,7 @@
* `C++14 - Complete <http://libcxx.llvm.org/cxx1y_status.html>`__
* `C++17 - In Progress <http://libcxx.llvm.org/cxx1z_status.html>`__
* `Post C++14 Technical Specifications - In Progress <http://libcxx.llvm.org/ts1z_status.html>`__
+* :ref:`C++ Feature Test Macro Status <feature-status>`
Notes and Known Issues
----------------------
@@ -136,6 +142,7 @@
DesignDocs/VisibilityMacros
DesignDocs/ThreadingSupportAPI
DesignDocs/FileTimeType
+ DesignDocs/FeatureTestMacros
* `<atomic> design <http://libcxx.llvm.org/atomic_design.html>`_
* `<type_traits> design <http://libcxx.llvm.org/type_traits_design.html>`_