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-rw-r--r--newlib/libm/common/s_fdim.c26
1 files changed, 26 insertions, 0 deletions
diff --git a/newlib/libm/common/s_fdim.c b/newlib/libm/common/s_fdim.c
new file mode 100644
index 000000000..0010bf59d
--- /dev/null
+++ b/newlib/libm/common/s_fdim.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 "fdlibm.h"
+
+#ifndef _DOUBLE_IS_32BITS
+
+#ifdef __STDC__
+ double fdim(double x, double y)
+#else
+ double fdim(x,y)
+ double x;
+ double y;
+#endif
+{
+ int c = __fpclassifyd(x);
+ if (c == FP_NAN || c == FP_INFINITE)
+ return HUGE_VAL;
+
+ return x > y ? x - y : 0.0;
+}
+
+#endif /* _DOUBLE_IS_32BITS */