diff options
Diffstat (limited to 'gcc/cp/call.c')
| -rw-r--r-- | gcc/cp/call.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/gcc/cp/call.c b/gcc/cp/call.c index dc35824..8421260 100644 --- a/gcc/cp/call.c +++ b/gcc/cp/call.c @@ -553,6 +553,23 @@ null_ptr_cst_p (tree t) return false; } +/* Returns true iff T is a null member pointer value (4.11). */ + +bool +null_member_pointer_value_p (tree t) +{ + tree type = TREE_TYPE (t); + if (!type) + return false; + else if (TYPE_PTRMEMFUNC_P (type)) + return (TREE_CODE (t) == CONSTRUCTOR + && integer_zerop (CONSTRUCTOR_ELT (t, 0)->value)); + else if (TYPE_PTRMEM_P (type)) + return integer_all_onesp (t); + else + return false; +} + /* Returns nonzero if PARMLIST consists of only default parms, ellipsis, and/or undeduced parameter packs. */ |