From 46fad4fd2c47d5109d8bbe993867a62c90ca38d5 Mon Sep 17 00:00:00 2001
From: Avril <flanchan@cumallover.me>
Date: Sat, 5 Jun 2021 13:58:58 +0100
Subject: [PATCH] basic slicing reinterpretation

---
 include/slice.hpp | 6 ++++++
 src/test/main.cpp | 8 +++++---
 2 files changed, 11 insertions(+), 3 deletions(-)

diff --git a/include/slice.hpp b/include/slice.hpp
index 4135fad..ec52648 100644
--- a/include/slice.hpp
+++ b/include/slice.hpp
@@ -45,6 +45,11 @@ struct Span {
 
 	inline Slice slice(size_t start, size_t len) { if(bounds_ok(start,len)) return Slice(ptr()+start, len); else throw "Out of bounds slice"; }
 	inline Slice slice(size_t start) { return slice(start, size()-start); }
+	inline Slice slice() { return slice(0, size()); }
+	template<typename U>
+	inline Span<U>::Slice reinterpret() { return typename Span<U>::Slice((U*)area(), size_bytes() / sizeof(U)); }	
+	template<typename U>
+	inline Span<const U>::Slice reinterpret() const { return typename Span<const U>::Slice((const U*)area(), size_bytes() / sizeof(U)); }
 };
 
 /// A slice of memory with a backing pointer and size.
@@ -59,6 +64,7 @@ struct Span<T>::Slice : public Span<T> {
 	inline const void* area() const override { return _area; }
 	inline void* area() override { return _area; }
 	inline size_t size() const override { return _size; }
+
 	
 	private:
 	void* const _area;
diff --git a/src/test/main.cpp b/src/test/main.cpp
index 0e99c2a..eac5f91 100644
--- a/src/test/main.cpp
+++ b/src/test/main.cpp
@@ -3,9 +3,11 @@
 #include <cstdio>
 #include <cstring>
 
-void print_slice(Slice<unsigned char> memory)
+template<typename T = unsigned char>
+void print_slice(Slice<T> memory)
 {
-	printf("slice: { %p, %lu }\n", memory.area(), memory.size());
+	printf("slice: { %p, %lu (%lu bytes) }\n", memory.area(), memory.size(), memory.size_bytes());
+
 }
 
 void write_fake(Cow& clone, const char* string)
@@ -23,7 +25,7 @@ int main()
 	Cow real(4096);
 
 	printf("Created real: ");
-	print_slice(real);	
+	print_slice(real);
 
 	write_fake(real, "Hello world");
 	read_fake(real);