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-rw-r--r--gcc/cp/method.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/gcc/cp/method.c b/gcc/cp/method.c
index f13d99d..47f9e42 100644
--- a/gcc/cp/method.c
+++ b/gcc/cp/method.c
@@ -622,6 +622,7 @@ do_build_copy_constructor (tree fndecl)
if (DECL_MUTABLE_P (field))
quals &= ~TYPE_QUAL_CONST;
+ quals |= TYPE_QUALS (expr_type);
expr_type = cp_build_qualified_type (expr_type, quals);
}