Disallow initializing void * with ptr to const.

2014-02-04 03:36:19 -08:00
parent 4ee0e6996a
commit 720975dff4
1 changed files with 7 additions and 0 deletions
--- a/expr.cpp
+++ b/expr.cpp
@@ -339,7 +339,14 @@ lDoTypeConv(const Type *fromType, const Type *toType, Expr **expr,
            return false;
        }
        else if (PointerType::IsVoidPointer(toPointerType)) {
+          if (fromPointerType->GetBaseType()->IsConstType()) {
+            if (!failureOk)
+              Error(pos, "Can't convert pointer to const \"%s\" to void pointer.",
+                    fromPointerType->GetString().c_str());
+            return false;
+          }
            // any pointer type can be converted to a void *
+            // ...almost. #731
            goto typecast_ok;
        }
        else if (PointerType::IsVoidPointer(fromPointerType) &&