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Fix build against macOS deployment target 10.10

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- std::optional<T>::value() is not available, use operator * instead
- alignment allocation is also only available in 10.14 or newer
This commit is contained in:
Simon Hausmann 2023-04-24 17:29:41 +02:00 • committed by Simon Hausmann
parent 18253b5150
commit 0ba6ef1c24
4 changed files with 14 additions and 4 deletions
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8
api/cpp/include/vtable.h
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@ -9,6 +9,10 @@
#include <optional>
#include <atomic>
#ifdef __APPLE__
#include <AvailabilityMacros.h>
#endif
namespace vtable {
template<typename T>
@ -119,8 +123,12 @@ public:
template<typename... Args>
static VRc make(Args... args)
{
#if !defined(__APPLE__) || MAC_OS_X_VERSION_MIN_REQUIRED >= MAC_OS_X_VERSION_10_14
auto mem = ::operator new(sizeof(VRcInner<VTable, X>),
static_cast<std::align_val_t>(alignof(VRcInner<VTable, X>)));
#else
auto mem = ::operator new(sizeof(VRcInner<VTable, X>));
#endif
auto inner = new (mem) VRcInner<VTable, X>;
new (&inner->data) X(args...);
return VRc(inner);