musl - musl - an implementation of the standard library for Linux-based systems

diff --git a/src/math/fmal.c b/src/math/fmal.c
index ccbe434d..87e30fcf 100644
--- a/src/math/fmal.c
+++ b/src/math/fmal.c

@@ -262,6 +262,8 @@ long double fmal(long double x, long double y, long double z)

/*

* There is no need to worry about double rounding in directed

* rounding modes.

+ * TODO: underflow is not raised correctly, example in downward rounding:

+ * fmal(0x1.0000000001p-16000L, 0x1.0000000001p-400L, -0x1p-16440L)

*/

fesetround(oround);

adj = r.lo + xy.lo;