first commit of the new libm!

[musl] / src / math / fdim.c

diff --git a/src/math/fdim.c b/src/math/fdim.c
new file mode 100644 (file)
index 0000000..fb25521
--- /dev/null
+++ b/src/math/fdim.c
@@ -0,0 +1,10 @@
+#include "libm.h"
+
+double fdim(double x, double y)
+{
+       if (isnan(x))
+               return x;
+       if (isnan(y))
+               return y;
+       return x > y ? x - y : 0;
+}