From ee4ce45b36061964eec1602c7bd3692fb9a40a2f Mon Sep 17 00:00:00 2001
From: Steven Le Rouzic <steven.lerouzic@gmail.com>
Date: Thu, 4 Apr 2024 00:29:55 +0200
Subject: Start implementing Span

---
 deimos/core/base.h | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

(limited to 'deimos/core/base.h')

diff --git a/deimos/core/base.h b/deimos/core/base.h
index 2482e68..3dc3bad 100644
--- a/deimos/core/base.h
+++ b/deimos/core/base.h
@@ -53,5 +53,29 @@ struct SourceLocation
     {}
 };
 
+template<typename T>
+class Span
+{
+    T*      m_begin = nullptr;
+    int64_t m_size  = 0;
+
+public:
+    constexpr Span() = default;
+    ~Span() = default;
+
+    deimos_DEFAULT_COPY_MOVE(Span);
+
+    template<typename U>
+    requires std::convertible_to<U*, T*>
+    constexpr Span(const Span<U>& other) : // NOLINT
+        m_begin{other.begin()},
+        m_size{other.size()}
+    {}
+
+    constexpr T* begin() const { return m_begin; }
+    constexpr T* end() const { return m_begin + m_size; }
+    constexpr int64_t size() const { return m_size; }
+};
+
 } // namespace deimos
 
-- 
cgit