Features: Extend concept to C language.

Add properties and variables corresponding to CXX equivalents.

Add features for c_function_prototypes (C90), c_restrict (C99),
c_variadic_macros (C99) and c_static_assert (C11). This feature
set can be extended later.

Add a <PREFIX>_RESTRICT symbol define to WriteCompilerDetectionHeader
to conditionally represent the c_restrict feature.

1 files changed, 15 insertions, 0 deletions

diff --git a/Tests/CompileFeatures/c_variadic_macros.c b/Tests/CompileFeatures/c_variadic_macros.c
new file mode 100644
index 0000000..4da111e
--- /dev/null
+++ b/Tests/CompileFeatures/c_variadic_macros.c
@@ -0,0 +1,15 @@
+
+int someFunc(int i1, char c, int i2)
+{
+  (void)i1;
+  (void)c;
+  (void)i2;
+  return 0;
+}
+
+#define FUNC_WRAPPER(...) someFunc(__VA_ARGS__)
+
+void otherFunc()
+{
+  FUNC_WRAPPER(42, 'a', 7);
+}