Add an unavailable __tg_promote function to attract incorrect uses of type-generic macros, rom Howard Hinnant.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@64919 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Headers/tgmath.h b/lib/Headers/tgmath.h
index cf8994f..f64f117 100644
--- a/lib/Headers/tgmath.h
+++ b/lib/Headers/tgmath.h
@@ -37,6 +37,9 @@
// promotion
+typedef void _Argument_type_is_not_arithmetic;
+static _Argument_type_is_not_arithmetic __tg_promote(...) \
+ __attribute__((__unavailable__,__overloadable__));
static double _TG_ATTRSp __tg_promote(int);
static double _TG_ATTRSp __tg_promote(unsigned int);
static double _TG_ATTRSp __tg_promote(long);