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memory: Add shared pointer reinterpretPointerCast function (#47)

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* memory: Add force reinterpret constructor to shared pointer

* memory: Change constructor to reinterpretPointerCast function

* memory: Add reinterpretPointerCast test
This commit is contained in:
Lee Bousfield 2025-03-04 15:26:24 -06:00 committed by GitHub
parent 61a5382f4b
commit 6b0154b183
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GPG key ID: B5690EEEBB952194
2 changed files with 18 additions and 3 deletions
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9
include/hyprutils/memory/SharedPtr.hpp
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@ -144,7 +144,7 @@ namespace Hyprutils {
Impl_::impl_base* impl_ = nullptr;
private:
/*
/*
no-op if there is no impl_
may delete the stored object if ref == 0
may delete and reset impl_ if ref == 0 and weak == 0
@ -167,7 +167,7 @@ namespace Hyprutils {
impl_->inc();
}
/* destroy the pointed-to object
/* destroy the pointed-to object
if able, will also destroy impl */
void destroyImpl() {
// destroy the impl contents
@ -185,6 +185,11 @@ namespace Hyprutils {
static CSharedPointer<U> makeShared(Args&&... args) {
return CSharedPointer<U>(new U(std::forward<Args>(args)...));
}
template <typename T, typename U>
CSharedPointer<T> reinterpretPointerCast(const CSharedPointer<U>& ref) {
return CSharedPointer<T>(ref.impl_);
}
}
}

12
tests/memory.cpp
View file

@ -11,7 +11,7 @@ using namespace Hyprutils::Memory;
int main(int argc, char** argv, char** envp) {
SP<int> intPtr = makeShared<int>(10);
SP<int> intPtr2 = makeShared<int>(1337);
SP<int> intPtr2 = makeShared<int>(-1337);
UP<int> intUnique = makeUnique<int>(420);
int ret = 0;
@ -52,5 +52,15 @@ int main(int argc, char** argv, char** envp) {
EXPECT(weak.expired(), true);
EXPECT(weakUnique.expired(), true);
auto intPtr2AsUint = reinterpretPointerCast<unsigned int>(intPtr2);
EXPECT(intPtr2.strongRef(), 4);
EXPECT(intPtr2AsUint.strongRef(), 4);
EXPECT(*intPtr2AsUint > 0, true);
EXPECT(*intPtr2AsUint, (unsigned int)(int)-1337);
*intPtr2AsUint = 10;
EXPECT(*intPtr2AsUint, 10);
EXPECT(*intPtr2, 10);
return ret;
}