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authorupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
committerupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
commit554fd8c5195424bdbcabf5de30fdc183aba391bd (patch)
tree976dc5ab7fddf506dadce60ae936f43f58787092 /gcc/testsuite/g++.dg/ext/packed4.C
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Diffstat (limited to 'gcc/testsuite/g++.dg/ext/packed4.C')
-rw-r--r--gcc/testsuite/g++.dg/ext/packed4.C77
1 files changed, 77 insertions, 0 deletions
diff --git a/gcc/testsuite/g++.dg/ext/packed4.C b/gcc/testsuite/g++.dg/ext/packed4.C
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index 000000000..e5e5e2c08
--- /dev/null
+++ b/gcc/testsuite/g++.dg/ext/packed4.C
@@ -0,0 +1,77 @@
+// { dg-do run { target { ! default_packed } } }
+// { dg-options "-w" }
+
+// Copyright (C) 2003 Free Software Foundation, Inc.
+// Contributed by Nathan Sidwell 15 Jul 2003 <nathan@codesourcery.com>
+
+// Packed fields are unsuitable for direct reference binding.
+
+struct Unpacked { int i; };
+
+int ConstRef (int const &p, int const *ptr, int v)
+{
+ if (p != v)
+ return 1;
+ if (&p == ptr)
+ return 2;
+ return 0;
+}
+
+int ConstRef (Unpacked const &p, Unpacked const *ptr, int v)
+{
+ if (p.i != v)
+ return 1;
+ if (&p == ptr)
+ return 2;
+ return 0;
+}
+
+int Val (int p, int v)
+{
+ if (p != v)
+ return 1;
+ return 0;
+}
+int Val (Unpacked p, int v)
+{
+ if (p.i != v)
+ return 1;
+ return 0;
+}
+
+struct __attribute__ ((packed)) Packed
+{
+ char c;
+ int i;
+ Unpacked u;
+ char t;
+};
+
+int Foo (Packed &p, int i, int ui)
+{
+ int r;
+
+ if ((r = Val (p.i, i)))
+ return r;
+ if ((r = Val (p.u.i, ui)))
+ return r + 2;
+ if ((r = Val (p.u, ui)))
+ return r + 4;
+
+ if ((r = ConstRef (p.i, &p.i, i)))
+ return r + 6;
+
+ return 0;
+}
+
+int main ()
+{
+ Packed p;
+
+ p.c = 0x12;
+ p.i = 0x3456789a;
+ p.u.i = 0xbcdef00f;
+ p.t = 0xed;
+
+ return Foo (p, 0x3456789a, 0xbcdef00f);
+}