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Allow typeid_cast() to cast nullptr to nullptr.

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This commit is contained in:
Vitaly Baranov 2020-07-10 17:02:48 +03:00
parent 4e40965c88
commit 3a0d358694
1 changed files with 2 additions and 2 deletions
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4
src/Common/typeid_cast.h
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@ -47,7 +47,7 @@ std::enable_if_t<std::is_pointer_v<To>, To> typeid_cast(From * from)
{ {
try try
{ {
if ((typeid(From) == typeid(std::remove_pointer_t<To>)) || (typeid(*from) == typeid(std::remove_pointer_t<To>))) if ((typeid(From) == typeid(std::remove_pointer_t<To>)) || (from && typeid(*from) == typeid(std::remove_pointer_t<To>)))
return static_cast<To>(from); return static_cast<To>(from);
else else
return nullptr; return nullptr;
@ -64,7 +64,7 @@ std::enable_if_t<ext::is_shared_ptr_v<To>, To> typeid_cast(const std::shared_ptr
{ {
try try
{ {
if ((typeid(From) == typeid(typename To::element_type)) || (typeid(*from) == typeid(typename To::element_type))) if ((typeid(From) == typeid(typename To::element_type)) || (from && typeid(*from) == typeid(typename To::element_type)))
return std::static_pointer_cast<typename To::element_type>(from); return std::static_pointer_cast<typename To::element_type>(from);
else else
return nullptr; return nullptr;