--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/testsuite/g++.dg/init/pr88375.C	Thu Feb 13 11:34:05 2020 +0900
@@ -0,0 +1,26 @@
+// { dg-do compile { target c++11 } }
+
+enum struct a : int {
+  one, two
+};
+
+constexpr int fn () { return 42; }
+
+struct foo {
+  int e1, e2;
+  a e3;
+} arr[] = {
+  { 1, 2, a::one },
+  { 3, a::two }, // { dg-error "11: cannot convert 'a' to 'int' in initialization" }
+  { 6, 7, 8 }, // { dg-error "11: cannot convert 'int' to 'a' in initialization" }
+  { 6, 7, fn() }, // { dg-error "13: cannot convert 'int' to 'a' in initialization" }
+};
+
+struct bar {
+  const char *f1;
+  int f2;
+} arr_2[] = {
+  { "hello world", 42 },
+  { 42 }, // { dg-error "5: invalid conversion from 'int' to 'const char\\*'" }
+  { "hello", "world" }, // { dg-error "14: invalid conversion from 'const char\\*' to 'int'" }
+};