From 554fd8c5195424bdbcabf5de30fdc183aba391bd Mon Sep 17 00:00:00 2001
From: upstream source tree <ports@midipix.org>
Date: Sun, 15 Mar 2015 20:14:05 -0400
Subject: obtained gcc-4.6.4.tar.bz2 from upstream website; verified
 gcc-4.6.4.tar.bz2.sig; imported gcc-4.6.4 source tree from verified upstream
 tarball.

downloading a git-generated archive based on the 'upstream' tag
should provide you with a source tree that is binary identical
to the one extracted from the above tarball.

if you have obtained the source via the command 'git clone',
however, do note that line-endings of files in your working
directory might differ from line-endings of the respective
files in the upstream repository.
---
 libdecnumber/bid/decimal128.c | 145 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 145 insertions(+)
 create mode 100644 libdecnumber/bid/decimal128.c

(limited to 'libdecnumber/bid/decimal128.c')

diff --git a/libdecnumber/bid/decimal128.c b/libdecnumber/bid/decimal128.c
new file mode 100644
index 000000000..db30bd39d
--- /dev/null
+++ b/libdecnumber/bid/decimal128.c
@@ -0,0 +1,145 @@
+/* Copyright (C) 2007, 2009
+   Free Software Foundation, Inc.
+
+This file is part of GCC.
+
+GCC is free software; you can redistribute it and/or modify it under
+the terms of the GNU General Public License as published by the Free
+Software Foundation; either version 3, or (at your option) any later
+version.
+
+GCC 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 General Public License
+for more details.
+
+Under Section 7 of GPL version 3, you are granted additional
+permissions described in the GCC Runtime Library Exception, version
+3.1, as published by the Free Software Foundation.
+
+You should have received a copy of the GNU General Public License and
+a copy of the GCC Runtime Library Exception along with this program;
+see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+<http://www.gnu.org/licenses/>.  */
+
+#define decimal128FromString __dpd128FromString
+#define decimal128ToString __dpd128ToString
+#define decimal128ToEngString __dpd128ToEngString
+#define decimal128FromNumber __dpd128FromNumber
+#define decimal128ToNumber __dpd128ToNumber
+
+#include "dpd/decimal128.c"
+
+#undef decimal128FromString
+#undef decimal128ToString
+#undef decimal128ToEngString
+#undef decimal128FromNumber
+#undef decimal128ToNumber
+
+#include "bid-dpd.h"
+
+#ifdef IN_LIBGCC2
+#define decimal128FromString __decimal128FromString
+#define decimal128ToString __decimal128ToString
+#define decimal128ToEngString __decimal128ToEngString
+#define decimal128FromNumber __decimal128FromNumber
+#define decimal128ToNumber __decimal128ToNumber
+#endif
+
+decimal128 *decimal128FromString (decimal128 *, const char *, decContext *);
+char *decimal128ToString (const decimal128 *, char *);
+char *decimal128ToEngString (const decimal128 *, char *);
+decimal128 *decimal128FromNumber (decimal128 *, const decNumber *, decContext *);
+decNumber *decimal128ToNumber (const decimal128 *, decNumber *);
+
+void __host_to_ieee_128 (_Decimal128 in, decimal128 *out);
+void __ieee_to_host_128 (decimal128 in, _Decimal128 *out);
+
+decimal128 *
+decimal128FromNumber (decimal128 *d128, const decNumber *dn,
+		      decContext *set)
+{
+  /* decimal128 and _Decimal128 are different types.  */
+  union
+    {
+      _Decimal128 _Dec;
+      decimal128 dec;
+    } u;
+
+  __dpd128FromNumber (d128, dn, set);
+
+  /* __dpd128FromNumber returns in big endian. But _dpd_to_bid128 takes
+     host endian. */
+  __ieee_to_host_128 (*d128, &u._Dec);
+
+  /* Convert DPD to BID.  */
+  _dpd_to_bid128 (&u._Dec, &u._Dec);
+
+  /* dfp.c is in bid endian. */
+  __host_to_ieee_128 (u._Dec, &u.dec);
+
+  /* d128 is returned as a pointer to _Decimal128 here.  */
+  *d128 = u.dec;
+
+  return d128;
+}
+
+decNumber *
+decimal128ToNumber (const decimal128 *bid128, decNumber *dn)
+{
+  /* decimal128 and _Decimal128 are different types.  */
+  union
+    {
+      _Decimal128 _Dec;
+      decimal128 dec;
+    } u;
+
+  /* bid128 is a pointer to _Decimal128 in bid endian. But _bid_to_dpd128
+     takes host endian.  */
+  __ieee_to_host_128 (*bid128, &u._Dec);
+
+  /* Convert BID to DPD.  */
+  _bid_to_dpd128 (&u._Dec, &u._Dec);
+
+  /* __dpd128ToNumber is in bid endian.  */
+  __host_to_ieee_128 (u._Dec, &u.dec);
+
+  return __dpd128ToNumber (&u.dec, dn);
+}
+
+char *
+decimal128ToString (const decimal128 *d128, char *string)
+{
+  decNumber dn;			/* work */
+  decimal128ToNumber (d128, &dn);
+  decNumberToString (&dn, string);
+  return string;
+}
+
+char *
+decimal128ToEngString (const decimal128 *d128, char *string)
+{
+  decNumber dn;			/* work */
+  decimal128ToNumber (d128, &dn);
+  decNumberToEngString (&dn, string);
+  return string;
+}
+
+decimal128 *
+decimal128FromString (decimal128 *result, const char *string,
+		      decContext *set)
+{
+  decContext dc;		/* work */
+  decNumber dn;			/* .. */
+
+  decContextDefault (&dc, DEC_INIT_DECIMAL128);	/* no traps, please */
+  dc.round = set->round;	/* use supplied rounding */
+
+  decNumberFromString (&dn, string, &dc);	/* will round if needed */
+  decimal128FromNumber (result, &dn, &dc);
+  if (dc.status != 0)
+    {				/* something happened */
+      decContextSetStatus (set, dc.status);	/* .. pass it on */
+    }
+  return result;
+}
-- 
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