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authorJason Merrill <jason@redhat.com>2000-08-24 16:43:51 -0400
committerJason Merrill <jason@gcc.gnu.org>2000-08-24 16:43:51 -0400
commit3f2b640a7a144e5ae52a84c3217abdccc5bdb199 (patch)
tree08028cb0ac34171906f304a6017d3b9dfb750a9d /gcc/cp/typeck.c
parent40e8cc959cbf470b4ef44fd93e329e84d4ff760a (diff)
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typeck.c (build_ptrmemfunc): Just reinterpret if there's no adjustment necessary.
* typeck.c (build_ptrmemfunc): Just reinterpret if there's no adjustment necessary. From-SVN: r35954
Diffstat (limited to 'gcc/cp/typeck.c')
-rw-r--r--gcc/cp/typeck.c19
1 files changed, 11 insertions, 8 deletions
diff --git a/gcc/cp/typeck.c b/gcc/cp/typeck.c
index 3b3313d..964993d 100644
--- a/gcc/cp/typeck.c
+++ b/gcc/cp/typeck.c
@@ -6125,12 +6125,21 @@ build_ptrmemfunc (type, pfn, force)
cp_error ("invalid conversion to type `%T' from type `%T'",
to_type, pfn_type);
+ n = get_delta_difference (TYPE_PTRMEMFUNC_OBJECT_TYPE (pfn_type),
+ TYPE_PTRMEMFUNC_OBJECT_TYPE (to_type),
+ force);
+
/* We don't have to do any conversion to convert a
pointer-to-member to its own type. But, we don't want to
just return a PTRMEM_CST if there's an explicit cast; that
cast should make the expression an invalid template argument. */
- if (TREE_CODE (pfn) != PTRMEM_CST && same_type_p (to_type, pfn_type))
- return pfn;
+ if (TREE_CODE (pfn) != PTRMEM_CST)
+ {
+ if (same_type_p (to_type, pfn_type))
+ return pfn;
+ else if (integer_zerop (n))
+ return build_reinterpret_cast (to_type, pfn);
+ }
if (TREE_SIDE_EFFECTS (pfn))
pfn = save_expr (pfn);
@@ -6142,9 +6151,6 @@ build_ptrmemfunc (type, pfn, force)
npfn = build_component_ref (pfn, pfn_identifier, NULL_TREE, 0);
delta = build_component_ref (pfn, delta_identifier, NULL_TREE, 0);
delta = cp_convert (ptrdiff_type_node, delta);
- n = get_delta_difference (TYPE_PTRMEMFUNC_OBJECT_TYPE (pfn_type),
- TYPE_PTRMEMFUNC_OBJECT_TYPE (to_type),
- force);
delta = cp_build_binary_op (PLUS_EXPR, delta, n);
return build_ptrmemfunc1 (to_type, delta, NULL_TREE, npfn,
NULL_TREE);
@@ -6173,9 +6179,6 @@ build_ptrmemfunc (type, pfn, force)
idx = build_component_ref (pfn, index_identifier, NULL_TREE, 0);
}
- n = get_delta_difference (TYPE_PTRMEMFUNC_OBJECT_TYPE (pfn_type),
- TYPE_PTRMEMFUNC_OBJECT_TYPE (to_type),
- force);
delta = cp_build_binary_op (PLUS_EXPR, ndelta, n);
delta2 = cp_build_binary_op (PLUS_EXPR, ndelta2, n);
e1 = fold (build (GT_EXPR, boolean_type_node, idx, integer_zero_node));