libs: move asm_ptr to kstd

2 files changed, 56 insertions, 0 deletions

diff --git a/libs/kstd/CMakeLists.txt b/libs/kstd/CMakeLists.txt
index b0abaaf..ac9e78f 100644
--- a/libs/kstd/CMakeLists.txt
+++ b/libs/kstd/CMakeLists.txt
@@ -13,6 +13,7 @@ target_sources("kstd" PUBLIC
     "include/kstd/bits/shared_ptr.hpp"
     "include/kstd/bits/unique_ptr.hpp"
 
+    "include/kstd/asm_ptr"
     "include/kstd/memory"
     "include/kstd/mutex"
     "include/kstd/stack"
diff --git a/libs/kstd/include/kstd/asm_ptr b/libs/kstd/include/kstd/asm_ptr
new file mode 100644
index 0000000..e9072e2
--- /dev/null
+++ b/libs/kstd/include/kstd/asm_ptr
@@ -0,0 +1,55 @@
+#ifndef KSTD_ASM_POINTER_HPP
+#define KSTD_ASM_POINTER_HPP
+
+#include <bit>
+
+namespace kstd
+{
+
+  /**
+   * @brief A pointer that is defined in some assembly source file.
+   *
+   * @tparam Type The type of the pointer
+   */
+  template<typename Type>
+  struct asm_ptr
+  {
+    using value_type = Type;
+    using pointer = value_type *;
+    using const_pointer = value_type const *;
+    using reference = value_type &;
+    using const_reference = value_type const &;
+
+    asm_ptr() = delete;
+    asm_ptr(asm_ptr const &) = delete;
+    asm_ptr(asm_ptr &&) = delete;
+
+    auto constexpr operator=(asm_ptr const &) = delete;
+    auto constexpr operator=(asm_ptr &&) = delete;
+
+    auto get() const noexcept -> pointer { return m_ptr; }
+
+    auto constexpr operator+(std::ptrdiff_t offset) const noexcept -> pointer
+    {
+      return std::bit_cast<pointer>(m_ptr) + offset;
+    }
+
+    auto constexpr operator*() noexcept -> reference { return *(std::bit_cast<pointer>(m_ptr)); }
+
+    auto constexpr operator*() const noexcept -> const_reference { return *(std::bit_cast<const_pointer>(m_ptr)); }
+
+    auto constexpr operator[](std::ptrdiff_t offset) noexcept -> reference { return *(*this + offset); }
+
+    auto constexpr operator[](std::ptrdiff_t offset) const noexcept -> const_reference { return *(*this + offset); }
+
+    auto constexpr operator->() noexcept -> pointer { return m_ptr; }
+
+    auto constexpr operator->() const noexcept -> const_pointer { return m_ptr; }
+
+  private:
+    pointer m_ptr;
+  };
+
+}  // namespace kstd
+
+#endif
\ No newline at end of file