1 files changed, 37 insertions, 0 deletions
diff --git a/newlib/libm/common/sf_isnanf.c b/newlib/libm/common/sf_isnanf.c
new file mode 100644
index 000000000..0b0d9bbaf
--- /dev/null
+++ b/newlib/libm/common/sf_isnanf.c
@@ -0,0 +1,37 @@
+/*
+ * ====================================================
+ * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
+ *
+ * Developed at SunPro, a Sun Microsystems, Inc. business.
+ * Permission to use, copy, modify, and distribute this
+ * software is freely granted, provided that this notice 
+ * is preserved.
+ * ====================================================
+ */
+
+/*
+ * __isnanf(x) returns 1 is x is nan, else 0;
+ */
+
+#include "fdlibm.h"
+
+int
+_DEFUN (__isnanf, (x),
+	float x)
+{
+	__int32_t ix;
+	GET_FLOAT_WORD(ix,x);
+	ix &= 0x7fffffff;
+	return FLT_UWORD_IS_NAN(ix);
+}
+
+#ifdef _DOUBLE_IS_32BITS
+
+int
+_DEFUN (__isnand, (x),
+	double x)
+{
+	return __isnanf((float) x);
+}
+
+#endif /* defined(_DOUBLE_IS_32BITS) */