commit 3fa73f36028ee1c4874ffb387d83f59c7f246452
author Richard Smith <richard-llvm@metafoo.co.uk> Thu Oct 22 04:27:47 2015 +0000
committer Richard Smith <richard-llvm@metafoo.co.uk> Thu Oct 22 04:27:47 2015 +0000
tree da9a87d91d6ee99befe45efc39d66d1f10418109
parent 76a2d615add9ac345cf967e39b00cd365bb286c2

[coroutines] Add feature-test macro for coroutines, defined to 1 to indicate
the implementation is incomplete.

llvm-svn: 250982

clang/lib/Frontend/InitPreprocessor.cpp

diff --git a/clang/lib/Frontend/InitPreprocessor.cpp b/clang/lib/Frontend/InitPreprocessor.cpp
index 0b445e8..dc07579 100644
--- a/clang/lib/Frontend/InitPreprocessor.cpp
+++ b/clang/lib/Frontend/InitPreprocessor.cpp
@@ -456,6 +456,8 @@
     Builder.defineMacro("__cpp_sized_deallocation", "201309");
   if (LangOpts.ConceptsTS)
     Builder.defineMacro("__cpp_experimental_concepts", "1");
+  if (LangOpts.Coroutines)
+    Builder.defineMacro("__cpp_coroutines", "1");
 }
 
 static void InitializePredefinedMacros(const TargetInfo &TI,

clang/test/Lexer/cxx-features.cpp

diff --git a/clang/test/Lexer/cxx-features.cpp b/clang/test/Lexer/cxx-features.cpp
index 4ec4d55..6c4a092 100644
--- a/clang/test/Lexer/cxx-features.cpp
+++ b/clang/test/Lexer/cxx-features.cpp
@@ -2,6 +2,7 @@
 // RUN: %clang_cc1 -std=c++11 -verify %s
 // RUN: %clang_cc1 -std=c++1y -fsized-deallocation -verify %s
 // RUN: %clang_cc1 -std=c++1y -fsized-deallocation -fconcepts-ts -DCONCEPTS_TS=1 -verify %s
+// RUN: %clang_cc1 -fcoroutines -DCOROUTINES -verify %s
 
 // expected-no-diagnostics
 
@@ -128,3 +129,7 @@
 #if check(experimental_concepts, 0, 0, CONCEPTS_TS)
 #error "wrong value for __cpp_experimental_concepts"
 #endif
+
+#if (COROUTINES && !__cpp_coroutines) || (!COROUTINES && __cpp_coroutines)
+#error "wrong value for __cpp_coroutines"
+#endif