found a broken example

thread
Brett 2024-06-05 20:15:08 -04:00
parent 9f41bec462
commit 2571df3b09
3 changed files with 51 additions and 15 deletions

View File

@ -1,5 +1,5 @@
cmake_minimum_required(VERSION 3.25)
project(blt-gp VERSION 0.0.11)
project(blt-gp VERSION 0.0.12)
option(ENABLE_ADDRSAN "Enable the address sanitizer" OFF)
option(ENABLE_UBSAN "Enable the ub sanitizer" OFF)

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@ -273,8 +273,24 @@ void test()
struct silly
{
long nyah;
int bruh;
long nyah = 50;
int bruh = 10;
friend std::ostream& operator<<(std::ostream& stream, const silly& silly)
{
stream << "[" << silly.nyah << " " << silly.bruh << "]";
return stream;
}
};
struct large
{
unsigned char data[2048];
};
struct super_large
{
unsigned char data[9582];
};
blt::gp::stack_allocator alloc;
@ -283,17 +299,37 @@ int main()
{
test();
std::cout << alignof(silly) << " " << sizeof(silly) << std::endl;
std::cout << alignof(super_large) << " " << sizeof(super_large) << std::endl;
std::cout << alignof(void*) << " " << sizeof(void*) << std::endl;
std::cout << blt::type_string<decltype(&"SillString")>() << std::endl;
alloc.push(50);
alloc.push(550.0f);
alloc.push(550.3f);
alloc.push(20.1230345);
alloc.push(std::string("SillyString"));
alloc.push(&"SillyString");
std::cout << std::endl << std::endl;
std::cout << alloc.pop<decltype(&"SillString")>() << std::endl;
std::cout << std::endl;
std::cout << *alloc.pop<decltype(&"SillString")>() << std::endl;
std::cout << alloc.pop<std::string>() << std::endl;
std::cout << alloc.pop<double>() << std::endl;
std::cout << alloc.pop<float>() << std::endl;
std::cout << alloc.pop<int>() << std::endl;
std::cout << std::endl;
std::cout << "Is empty? " << alloc.empty() << std::endl << std::endl;
alloc.push(silly{});
alloc.push(large{});
alloc.push(super_large{});
alloc.push(silly{25, 24});
alloc.push(large{});
std::cout << std::endl;
alloc.pop<large>();
std::cout << alloc.pop<silly>() << std::endl;
alloc.pop<super_large>();
alloc.pop<large>();
std::cout << alloc.pop<silly>() << std::endl;
blt::size_t remaining_bytes = 4096;
//auto* pointer = static_cast<void*>(head->metadata.offset);

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@ -109,15 +109,15 @@ namespace blt::gp
constexpr auto offset = std::max(sizeof(T), MAX_ALIGNMENT);
if (head == nullptr)
throw std::runtime_error("Silly boi the stack is empty!");
if (head->remaining_bytes_in_block() - head->storage_size() < static_cast<blt::ptrdiff_t>(sizeof(T)))
throw std::runtime_error("Mismatched Types!");
if (head->used_bytes_in_block() < static_cast<blt::ptrdiff_t>(sizeof(T)))
throw std::runtime_error("Mismatched Types! Not enough space left in block!");
T t = *reinterpret_cast<T*>(head->metadata.offset - offset);
head->metadata.offset -= offset;
if (head->used_bytes_in_block() == static_cast<blt::ptrdiff_t>(head->storage_size()))
{
auto ptr = head;
head = head->metadata.prev;
delete ptr;
std::free(ptr);
}
return t;
}
@ -182,7 +182,7 @@ namespace blt::gp
{
block* ptr = current;
current = current->metadata.prev;
delete ptr;
std::free(ptr);
}
}
@ -209,15 +209,15 @@ namespace blt::gp
return static_cast<blt::ptrdiff_t>(metadata.size - sizeof(typename block::block_metadata_t));
}
[[nodiscard]] blt::ptrdiff_t remaining_bytes_in_block() const
{
return storage_size() - static_cast<blt::ptrdiff_t>(metadata.offset - buffer);
}
[[nodiscard]] blt::ptrdiff_t used_bytes_in_block() const
{
return static_cast<blt::ptrdiff_t>(metadata.offset - buffer);
}
[[nodiscard]] blt::ptrdiff_t remaining_bytes_in_block() const
{
return storage_size() - used_bytes_in_block();
}
};
template<typename T>