[libc][Obvious] Add a default clause to RoundingModeUtils.h to suppress gcc

warning.

diff --git a/libc/utils/testutils/RoundingModeUtils.cpp b/libc/utils/testutils/RoundingModeUtils.cpp
index 1f07108..aff3380 100644 (file)
--- a/libc/utils/testutils/RoundingModeUtils.cpp
+++ b/libc/utils/testutils/RoundingModeUtils.cpp
@@ -27,6 +27,8 @@ int get_fe_rounding(RoundingMode mode) {
   case RoundingMode::Nearest:
     return FE_TONEAREST;
     break;
+  default:
+    __builtin_unreachable();
   }
 }