From b1add835864a5907dc5a674f7eee2f3db038f704 Mon Sep 17 00:00:00 2001
From: Dan Goodliffe <dan@randomdan.homeip.net>
Date: Mon, 3 Jan 2022 18:28:10 +0000
Subject: More complete and tested stream output support

---
 lib/stream_support.hpp | 52 ++++++++++++++++++++++++++++++++++++++------------
 1 file changed, 40 insertions(+), 12 deletions(-)

(limited to 'lib')

diff --git a/lib/stream_support.hpp b/lib/stream_support.hpp
index 449708c..932f7c4 100644
--- a/lib/stream_support.hpp
+++ b/lib/stream_support.hpp
@@ -3,30 +3,49 @@
 #include <glm/glm.hpp>
 #include <iostream>
 #include <maths.h>
+#include <span>
+#include <sstream>
 
 namespace std {
+	template<typename T, std::size_t L>
+	std::ostream &
+	operator<<(std::ostream & s, const span<const T, L> v)
+	{
+		s << '(';
+		for (const auto & i : v) {
+			if (&i != &v.front())
+				s << ", ";
+			s << i;
+		}
+		return s << ')';
+	}
+
 	template<glm::length_t L, glm::length_t R, typename T, glm::qualifier Q>
 	std::ostream &
 	operator<<(std::ostream & s, const glm::mat<L, R, T, Q> & m)
 	{
-		for (int y = 0; y < m.length(); y++) {
-			const auto & col = m[y];
-			for (int x = 0; x < col.length(); x++) {
-				s << col[x] << ", ";
-			}
-			s << "\n";
-		}
-		return s;
+		return (s << std::span {&m[0], L});
 	}
 
 	template<glm::length_t L, typename T, glm::qualifier Q>
 	std::ostream &
 	operator<<(std::ostream & s, const glm::vec<L, T, Q> & v)
 	{
-		for (int x = 0; x < L; x++) {
-			s << v[x] << ", ";
-		}
-		return s;
+		return (s << std::span {&v[0], L});
+	}
+
+	template<typename T, std::size_t L>
+	std::ostream &
+	operator<<(std::ostream & s, const array<T, L> & v)
+	{
+		return (s << std::span {v});
+	}
+
+	template<typename T>
+	std::ostream &
+	operator<<(std::ostream & s, const vector<T> & v)
+	{
+		return (s << std::span {v});
 	}
 
 	inline std::ostream &
@@ -36,4 +55,13 @@ namespace std {
 	}
 }
 
+template<typename T>
+std::string
+streamed_string(const T & v)
+{
+	std::stringstream ss;
+	ss << v;
+	return ss.str();
+}
+
 #define CLOG(x) std::clog << #x " : " << x << "\n";
-- 
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