diff options
Diffstat (limited to 'src/dynamic_cast.cc')
| -rw-r--r-- | src/dynamic_cast.cc | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/src/dynamic_cast.cc b/src/dynamic_cast.cc index 2d1f64c..7d15d23 100644 --- a/src/dynamic_cast.cc +++ b/src/dynamic_cast.cc @@ -16,6 +16,11 @@ struct vtable_header #define ADD_TO_PTR(x, off) (__typeof__(x))(((char*)x) + off) +bool __class_type_info::can_cast_to(const struct __class_type_info *other) const +{ + return this == other; +} + void *__class_type_info::cast_to(void *obj, const struct __class_type_info *other) const { if (this == other) @@ -24,6 +29,13 @@ void *__class_type_info::cast_to(void *obj, const struct __class_type_info *othe } return 0; } + + +bool __si_class_type_info::can_cast_to(const struct __class_type_info *other) const +{ + return this == other || __base_type->can_cast_to(other); +} + void *__si_class_type_info::cast_to(void *obj, const struct __class_type_info *other) const { if (this == other) @@ -32,6 +44,25 @@ void *__si_class_type_info::cast_to(void *obj, const struct __class_type_info *o } return __base_type->cast_to(obj, other); } + + +bool __vmi_class_type_info::can_cast_to(const struct __class_type_info *other) const +{ + if (this == other) + { + return true; + } + for (unsigned int i=0 ; i<__base_count ; i++) + { + const __base_class_type_info *info = &__base_info[i]; + if(info->__base_type->can_cast_to(other)) + { + return true; + } + } + return false; +} + void *__vmi_class_type_info::cast_to(void *obj, const struct __class_type_info *other) const { if (this == other) |