decltype(bit field type) is the underlying subtype

tautschnig · tautschnig · commit 44cb7c98920d · 2018-06-04T18:21:10.000+01:00
diff --git a/regression/cpp/Bit_fields1/test.desc b/regression/cpp/Bit_fields1/test.desc
@@ -1,4 +1,4 @@
-KNOWNBUG
+CORE
 main.cpp
 -std=c++11
 ^EXIT=0$
diff --git a/src/cpp/cpp_typecheck_type.cpp b/src/cpp/cpp_typecheck_type.cpp
@@ -238,7 +238,11 @@ void cpp_typecheckt::typecheck_type(typet &type)
   {
     exprt e=static_cast<const exprt &>(type.find(ID_expr_arg));
     typecheck_expr(e);
-    type=e.type();
+
+    if(e.type().id() == ID_c_bit_field)
+      type = e.type().subtype();
+    else
+      type = e.type();
   }
   else if(type.id()==ID_unassigned)
   {

Original file line number	Diff line number	Diff line change
`@@ -238,7 +238,11 @@ void cpp_typecheckt::typecheck_type(typet &type)`
`238`	`238`	`{`
`239`	`239`	`exprt e=static_cast<const exprt &>(type.find(ID_expr_arg));`
`240`	`240`	`typecheck_expr(e);`
`241`		`- type=e.type();`
	`241`	`+`
	`242`	`+ if(e.type().id() == ID_c_bit_field)`
	`243`	`+ type = e.type().subtype();`
	`244`	`+ else`
	`245`	`+ type = e.type();`
`242`	`246`	`}`
`243`	`247`	`else if(type.id()==ID_unassigned)`
`244`	`248`	`{`