range-for8.C: New test.

	* g++.dg/cpp2a/range-for8.C: New test.
	* g++.dg/cpp2a/range-for9.C: New test.
	* g++.dg/cpp2a/range-for10.C: New test.

From-SVN: r260625

gcc/testsuite/ChangeLog

+2018-05-23  Marek Polacek  <polacek@redhat.com>
+
+	* g++.dg/cpp2a/range-for8.C: New test.
+	* g++.dg/cpp2a/range-for9.C: New test.
+	* g++.dg/cpp2a/range-for10.C: New test.
+
 2017-05-23  Segher Boessenkool  <segher@kernel.crashing.org>
 
 	* lib/target-supports.exp (check_effective_target_be): New.

gcc/testsuite/g++.dg/cpp2a/range-for10.C

+// P0614R1
+// { dg-do run }
+// { dg-options "-std=c++2a" }
+
+struct A { int i; long long j; } a[64];
+
+int
+main ()
+{
+  A b = { 1, 2 };
+  for (auto & [ u, v ] : a)
+    {
+      u = 2;
+      v = 3;
+    }
+
+  for (auto [x, y] = b; auto [ u, v ] : a)
+    if (y + u != x + v)
+      __builtin_abort ();
+
+  for (auto [x, y] = b; auto & [ u, v ] : a)
+    if (y + u != x + v)
+      __builtin_abort ();
+}

gcc/testsuite/g++.dg/cpp2a/range-for8.C

+// P0614R1
+// { dg-do run }
+// { dg-options "-std=c++2a" }
+
+struct A { int i; long long j; } a[64];
+
+int
+main ()
+{
+  for (int i = 0; auto &x : a)
+    {
+      x.i = i;
+      x.j = 2 * i++;
+    }
+  for (auto & [ x, y ] : a)
+    {
+      x += 2;
+      y += 3;
+    }
+  for (int i = 0; const auto [ u, v ] : a)
+    {
+      if (u != i + 2 || v != 2 * i++ + 3)
+        __builtin_abort ();
+    }
+  for (int i = 0; auto [ x, y ] : a)
+    {
+      x += 4;
+      y += 5;
+      if (x != i + 6 || y != 2 * i++ + 8)
+        __builtin_abort ();
+    }
+  for (int i = 0; const auto x : a)
+    {
+      if (x.i != i + 2 || x.j != 2 * i++ + 3)
+        __builtin_abort ();
+    }
+}

gcc/testsuite/g++.dg/cpp2a/range-for9.C

+// P0614R1
+// { dg-do run }
+// { dg-options "-std=c++2a" }
+
+struct A { int i, j; };
+
+int
+main ()
+{
+  A a = { .i = 2, .j = 3 };
+  int arr[] = { 1, 1, 1 };
+
+  for (auto & [ x, y ] = a; auto z : arr)
+    if (x + z != 3 || y + z != 4)
+      __builtin_abort ();
+
+  for (int d = 1; auto &z : arr)
+    z += d;
+
+  for (const auto [ x, y ] = a; auto z : arr)
+    if (x + z != 4 || y + z != 5)
+      __builtin_abort ();
+
+  for (int d = 1; auto &z : arr)
+    z += d;
+
+  for (auto [ x, y ] = a; auto z : arr)
+    if (x + z != 5 || y + z != 6)
+      __builtin_abort ();
+}