1 files changed, 15 insertions, 0 deletions
diff --git a/gcc/testsuite/g++.dg/init/struct3.C b/gcc/testsuite/g++.dg/init/struct3.C
new file mode 100644
index 000000000..53804b3d1
--- /dev/null
+++ b/gcc/testsuite/g++.dg/init/struct3.C
@@ -0,0 +1,15 @@
+/* PR c++/23180.  */
+/* Initialize a global variable with an expression that attempts to use
+   pointer arithmetic to calculate a structure field offset.  */
+
+struct Track {
+  char soundName[15];
+};
+
+struct SaveLoadEntry {
+  int offs;
+  int type;
+  int size;
+};    
+
+int foobar = ((long) (__SIZE_TYPE__) (& ((Track *) 42)->soundName[0])) - 42;