1 files changed, 17 insertions, 0 deletions
diff --git a/src/math/fdiml.c b/src/math/fdiml.c
new file mode 100644
index 00000000..cda3022e
--- /dev/null
+++ b/src/math/fdiml.c
@@ -0,0 +1,17 @@
+#include "libm.h"
+
+#if LDBL_MANT_DIG == 53 && LDBL_MAX_EXP == 1024
+long double fdiml(long double x, long double y)
+{
+	return fdim(x, y);
+}
+#else
+long double fdiml(long double x, long double y)
+{
+	if (isnan(x))
+		return x;
+	if (isnan(y))
+		return y;
+	return x > y ? x - y : 0;
+}
+#endif