1 files changed, 56 insertions, 0 deletions
diff --git a/libc/dfp/sysdeps/ieee754r/d32/samequantumd32.c b/libc/dfp/sysdeps/ieee754r/d32/samequantumd32.c
new file mode 100644
index 000000000..50dbcaebc
--- /dev/null
+++ b/libc/dfp/sysdeps/ieee754r/d32/samequantumd32.c
@@ -0,0 +1,56 @@
+/* Returns true if x and y have the same exponent
+   Copyright (C) 2006 IBM Corporation.
+
+   Author(s): Joseph Kerian <jkerian@us.ibm.com>
+
+   The Decimal Floating Point C Library is free software; you can
+   redistribute it and/or modify it under the terms of the GNU Lesser
+   General Public License version 2.1.
+
+   The Decimal Floating Point C Library is distributed in the hope that
+   it will be useful, but WITHOUT ANY WARRANTY; without even the implied
+   warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
+   the GNU Lesser General Public License version 2.1 for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License version 2.1 along with the Decimal Floating Point C Library;
+   if not, write to the Free Software Foundation, Inc., 59 Temple Place,
+   Suite 330, Boston, MA 02111-1307 USA.
+
+   Please see dfp/COPYING.txt for more information.  */
+
+#ifndef _DECIMAL_SIZE
+#  include <decimal32.h>
+#  define _DECIMAL_SIZE 32
+#endif
+
+#include <decContext.h>
+#include <decNumber.h>
+#include <math.h>
+
+#define FUNCTION_NAME samequantum
+
+#include <dfpmacro.h>
+
+_Bool
+INTERNAL_FUNCTION_NAME (DEC_TYPE x, DEC_TYPE y)
+{
+  decNumber dn_x;
+  decNumber dn_y;
+
+  FUNC_CONVERT_TO_DN(&x, &dn_x);
+  FUNC_CONVERT_TO_DN(&y, &dn_y);
+
+  if(___decNumberIsNaN(&dn_x) && ___decNumberIsNaN(&dn_y))
+    return true;
+  if(___decNumberIsNaN(&dn_x) || ___decNumberIsNaN(&dn_y))
+    return false;
+  if(___decNumberIsInfinite(&dn_x) && ___decNumberIsInfinite(&dn_y))
+    return true;
+  if(___decNumberIsInfinite(&dn_x) || ___decNumberIsInfinite(&dn_y))
+    return false;
+
+  return (dn_x.exponent + dn_x.digits == dn_y.exponent + dn_y.digits);
+}
+
+weak_alias (INTERNAL_FUNCTION_NAME, EXTERNAL_FUNCTION_NAME)