1 files changed, 179 insertions, 0 deletions
diff --git a/libstdc++-v3/testsuite/decimal/incdec.cc b/libstdc++-v3/testsuite/decimal/incdec.cc
new file mode 100644
index 000000000..45211b1de
--- /dev/null
+++ b/libstdc++-v3/testsuite/decimal/incdec.cc
@@ -0,0 +1,179 @@
+// 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  3.2.2.5  Increment and decrement operators (decimal32).
+// ISO/IEC TR 24733  3.2.3.5  Increment and decrement operators (decimal64).
+// ISO/IEC TR 24733  3.2.4.5  Increment and decrement operators (decimal128).
+
+#include <decimal/decimal>
+#include <testsuite_hooks.h>
+
+// Use extension to replace implicit long long conversion with function call.
+#define LONGLONG(X) decimal_to_long_long(X)
+
+using namespace std::decimal;
+
+void
+incdec32 (void)
+{
+  int ival;
+  std::decimal::decimal32 a(11), b, c;
+
+  // Verify that we get the expected value of b after assignment.
+  b = a;
+  ival = LONGLONG (b); VERIFY (ival == 11);
+
+  // Check that the increment and decrement operators change the value
+  // of the original class.
+  b = a;
+  ++b;
+  ival = LONGLONG (b); VERIFY (ival == 12);
+
+  b = a;
+  b++;
+  ival = LONGLONG (b); VERIFY (ival == 12);
+
+  b = a;
+  --b;
+  ival = LONGLONG (b); VERIFY (ival == 10);
+
+  b = a;
+  b--;
+  ival = LONGLONG (b); VERIFY (ival == 10);
+
+  // Check that the increment and decrement operators return the
+  // correct value.
+  b = a;
+  c = ++b;
+  ival = LONGLONG (c); VERIFY (ival == 12);
+
+  b = a;
+  c = b++;
+  ival = LONGLONG (c); VERIFY (ival == 11);
+
+  b = a;
+  c = --b;
+  ival = LONGLONG (c); VERIFY (ival == 10);
+
+  b = a;
+  c = b--;
+  ival = LONGLONG (c); VERIFY (ival == 11);
+}
+
+void
+incdec64 (void)
+{
+  int ival;
+  std::decimal::decimal64 a(11), b, c;
+
+  // Verify that we get the expected value of b after assignment.
+  b = a;
+  ival = LONGLONG (b); VERIFY (ival == 11);
+
+  // Check that the increment and decrement operators change the value
+  // of the original class.
+  b = a;
+  ++b;
+  ival = LONGLONG (b); VERIFY (ival == 12);
+
+  b = a;
+  b++;
+  ival = LONGLONG (b); VERIFY (ival == 12);
+
+  b = a;
+  --b;
+  ival = LONGLONG (b); VERIFY (ival == 10);
+
+  b = a;
+  b--;
+  ival = LONGLONG (b); VERIFY (ival == 10);
+
+  // Check that the increment and decrement operators return the
+  // correct value.
+  b = a;
+  c = ++b;
+  ival = LONGLONG (c); VERIFY (ival == 12);
+
+  b = a;
+  c = b++;
+  ival = LONGLONG (c); VERIFY (ival == 11);
+
+  b = a;
+  c = --b;
+  ival = LONGLONG (c); VERIFY (ival == 10);
+
+  b = a;
+  c = b--;
+  ival = LONGLONG (c); VERIFY (ival == 11);
+}
+
+void
+incdec128 (void)
+{
+  int ival;
+  std::decimal::decimal128 a(11), b, c;
+
+  // Verify that we get the expected value of b after assignment.
+  b = a;
+  ival = LONGLONG (b); VERIFY (ival == 11);
+
+  // Check that the increment and decrement operators change the value
+  // of the original class.
+  b = a;
+  ++b;
+  ival = LONGLONG (b); VERIFY (ival == 12);
+
+  b = a;
+  b++;
+  ival = LONGLONG (b); VERIFY (ival == 12);
+
+  b = a;
+  --b;
+  ival = LONGLONG (b); VERIFY (ival == 10);
+
+  b = a;
+  b--;
+  ival = LONGLONG (b); VERIFY (ival == 10);
+
+  // Check that the increment and decrement operators return the
+  // correct value.
+  b = a;
+  c = ++b;
+  ival = LONGLONG (c); VERIFY (ival == 12);
+
+  b = a;
+  c = b++;
+  ival = LONGLONG (c); VERIFY (ival == 11);
+
+  b = a;
+  c = --b;
+  ival = LONGLONG (c); VERIFY (ival == 10);
+
+  b = a;
+  c = b--;
+  ival = LONGLONG (c); VERIFY (ival == 11);
+}
+
+int
+main ()
+{
+  incdec32 ();
+  incdec64 ();
+  incdec128 ();
+}