1 files changed, 31 insertions, 0 deletions
diff --git a/gcc/testsuite/gdc.test/runnable/complex3.d b/gcc/testsuite/gdc.test/runnable/complex3.d
new file mode 100644
index 0000000..7167b0b
--- /dev/null
+++ b/gcc/testsuite/gdc.test/runnable/complex3.d
@@ -0,0 +1,31 @@
+// https://issues.dlang.org/show_bug.cgi?id=23778
+
+
+enum __c_long_double : double;
+
+alias __c_long_double c_long_double;
+
+struct _Complex
+{
+    c_long_double re;
+    c_long_double im;
+}
+
+version (all) // bug to test
+{
+    enum __c_complex_real   : _Complex;
+    alias c_complex_real = __c_complex_real;
+}
+else // works
+    enum c_complex_real   : _Complex;
+
+c_complex_real toNative2(real re, real im)
+{
+    return c_complex_real(re, im);
+}
+
+void main()
+{
+    c_complex_real n = toNative2(123, 456);
+    assert(123 == n.re && 456 == n.im);
+}