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-rw-r--r--libm/s_fmax.c26
1 files changed, 26 insertions, 0 deletions
diff --git a/libm/s_fmax.c b/libm/s_fmax.c
new file mode 100644
index 000000000..61ec12d81
--- /dev/null
+++ b/libm/s_fmax.c
@@ -0,0 +1,26 @@
+/* Copyright (C) 2002 by Red Hat, Incorporated. All rights reserved.
+ *
+ * Permission to use, copy, modify, and distribute this software
+ * is freely granted, provided that this notice is preserved.
+ */
+
+#include "math.h"
+#include "math_private.h"
+
+libm_hidden_proto(fmax)
+#ifdef __STDC__
+ double fmax(double x, double y)
+#else
+ double fmax(x,y)
+ double x;
+ double y;
+#endif
+{
+ if (__fpclassify(x) == FP_NAN)
+ return x;
+ if (__fpclassify(y) == FP_NAN)
+ return y;
+
+ return x > y ? x : y;
+}
+libm_hidden_def(fmax)