diff options
Diffstat (limited to 'contrib/gcc/cp/search.c')
| -rw-r--r-- | contrib/gcc/cp/search.c | 23 |
1 files changed, 21 insertions, 2 deletions
diff --git a/contrib/gcc/cp/search.c b/contrib/gcc/cp/search.c index 4721a58c11e8..c43dd212a58f 100644 --- a/contrib/gcc/cp/search.c +++ b/contrib/gcc/cp/search.c @@ -2855,8 +2855,27 @@ add_conversions (binfo, data) /* Make sure we don't already have this conversion. */ if (! IDENTIFIER_MARKED (name)) { - *conversions = tree_cons (binfo, tmp, *conversions); - IDENTIFIER_MARKED (name) = 1; + tree t; + + /* Make sure that we do not already have a conversion + operator for this type. Merely checking the NAME is not + enough because two conversion operators to the same type + may not have the same NAME. */ + for (t = *conversions; t; t = TREE_CHAIN (t)) + { + tree fn; + for (fn = TREE_VALUE (t); fn; fn = OVL_NEXT (fn)) + if (same_type_p (TREE_TYPE (name), + DECL_CONV_FN_TYPE (OVL_CURRENT (fn)))) + break; + if (fn) + break; + } + if (!t) + { + *conversions = tree_cons (binfo, tmp, *conversions); + IDENTIFIER_MARKED (name) = 1; + } } } return NULL_TREE; |