obtained gcc-4.6.4.tar.bz2 from upstream website;upstream

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
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if you have obtained the source via the command 'git clone',
however, do note that line-endings of files in your working
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1 files changed, 101 insertions, 0 deletions

diff --git a/libstdc++-v3/testsuite/decimal/conversion-from-float.cc b/libstdc++-v3/testsuite/decimal/conversion-from-float.cc
new file mode 100644
index 000000000..c1824a827
--- /dev/null
+++ b/libstdc++-v3/testsuite/decimal/conversion-from-float.cc
@@ -0,0 +1,101 @@
+// Copyright (C) 2009 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library.  This library 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.
+
+// This 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 General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING3.  If not see
+// <http://www.gnu.org/licenses/>.
+
+// { dg-require-effective-target dfp }
+
+// ISO/IEC TR 24733  3.2.2.2  Conversion from floating-point type (decimal32).
+// ISO/IEC TR 24733  3.2.3.2  Conversion from floating-point type (decimal64).
+// ISO/IEC TR 24733  3.2.4.2  Conversion from floating-point type (decimal128).
+
+#include <decimal/decimal>
+#include <testsuite_hooks.h>
+
+using namespace std::decimal;
+
+void
+conversion_from_float_32 ()
+{
+  decimal32 d32(123);
+  decimal64 d64(234);
+  decimal128 d128(345);
+  float f = 456.F;
+  double d = 567.;
+  long double ld = 678.L;
+
+  d32 = (decimal32) d64;
+  VERIFY (d32 == make_decimal32 (234LL, 0));
+  d32 = (decimal32) d128;
+  VERIFY (d32 == make_decimal32 (345LL, 0));
+  d32 = (decimal32) f;
+  VERIFY (d32 == make_decimal32 (456LL, 0));
+  d32 = (decimal32) d;
+  VERIFY (d32 == make_decimal32 (567LL, 0));
+  d32 = (decimal32) ld;
+  VERIFY (d32 == make_decimal32 (678LL, 0));
+}
+
+void
+conversion_from_float_64 ()
+{
+  decimal32 d32(123);
+  decimal64 d64(234);
+  decimal128 d128(345);
+  float f = 456.F;
+  double d = 567.;
+  long double ld = 678.L;
+
+  d64 = d32;
+  VERIFY (d64 == make_decimal64 (123LL, 0));
+  d64 = (decimal64) d128;
+  VERIFY (d64 == make_decimal64 (345LL, 0));
+  d64 = (decimal64) f;
+  VERIFY (d64 == make_decimal64 (456LL, 0));
+  d64 = (decimal64) d;
+  VERIFY (d64 == make_decimal64 (567LL, 0));
+  d64 = (decimal64) ld;
+  VERIFY (d64 == make_decimal64 (678LL, 0));
+}
+
+void
+conversion_from_float_128 ()
+{
+  decimal32 d32(123);
+  decimal64 d64(234);
+  decimal128 d128(345);
+  float f = 456.F;
+  double d = 567.;
+  long double ld = 678.L;
+
+  d128 = d32;
+  VERIFY (d128 == make_decimal128 (123LL, 0));
+  d128 = d64;
+  VERIFY (d128 == make_decimal128 (234LL, 0));
+  d128 = (decimal128) f;
+  VERIFY (d128 == make_decimal128 (456LL, 0));
+  d128 = (decimal128) d;
+  VERIFY (d128 == make_decimal128 (567LL, 0));
+  d128 = (decimal128) ld;
+  VERIFY (d128 == make_decimal128 (678LL, 0));
+}
+
+int
+main ()
+{
+  conversion_from_float_32 ();
+  conversion_from_float_64 ();
+  conversion_from_float_128 ();
+}