diff options
Diffstat (limited to 'Gem/develop/include/Gem/Utils/any.h')
| -rw-r--r-- | Gem/develop/include/Gem/Utils/any.h | 33 |
1 files changed, 31 insertions, 2 deletions
diff --git a/Gem/develop/include/Gem/Utils/any.h b/Gem/develop/include/Gem/Utils/any.h index 5841c79..0861e19 100644 --- a/Gem/develop/include/Gem/Utils/any.h +++ b/Gem/develop/include/Gem/Utils/any.h @@ -27,6 +27,7 @@ #include <algorithm> #include <string> +//#define GEM_ANY_TYPEID_HACK namespace gem { @@ -70,7 +71,7 @@ struct fxns { struct type { static const std::type_info& get_type(void) { -#if 0 +#if GEM_ANY_TYPEID_HACK const std::type_info&res=typeid(T); // the following is a dummy use of the type_info struct // to make the template engine work properly on OSX/10.9 @@ -104,7 +105,7 @@ struct fxns<false> { struct type { static const std::type_info& get_type(void) { -#if 0 +#if GEM_ANY_TYPEID_HACK const std::type_info&res=typeid(T); return res; #else @@ -353,6 +354,34 @@ T const& any_cast(any const& this_) { return *any_cast<T>(const_cast<any*>(&this_)); } +#ifdef GEM_INTERNAL +// Note: The "unsafe" versions of any_cast are not part of the +// public interface (and hence protected by GEM_INTERNAL) and may +// be removed at any time. They are required where we know what type +// is stored in the any and can't use typeid() comparison, e.g., +// when our types may travel across different shared libraries. +template<typename T> +T* unsafe_any_cast(any* this_) +{ + if (sizeof(T) <= sizeof(void*)) { + return reinterpret_cast<T*>(&this_->object); + } else { + return reinterpret_cast<T*>(this_->object); + } +} + +template<typename T> +T const* unsafe_any_cast(any const* this_) +{ + return unsafe_any_cast<T>(const_cast<any*>(this_)); +} + +template<typename T> +T const& unsafe_any_cast(any const& this_) +{ + return *unsafe_any_cast<T>(const_cast<any*>(&this_)); +} +#endif } #ifdef _MSC_VER |