From 72a403ce29627ad6fb603c366b239ba8c9e5131e Mon Sep 17 00:00:00 2001
From: Christian Cunningham <cc@localhost>
Date: Wed, 30 Mar 2022 16:22:09 -0700
Subject: Allow C++ user code

---
 usr/cxx.cpp | 24 ++++++++++++++++++++++++
 usr/main.c  |  4 +++-
 2 files changed, 27 insertions(+), 1 deletion(-)
 create mode 100644 usr/cxx.cpp

(limited to 'usr')

diff --git a/usr/cxx.cpp b/usr/cxx.cpp
new file mode 100644
index 0000000..0c41cca
--- /dev/null
+++ b/usr/cxx.cpp
@@ -0,0 +1,24 @@
+extern "C" {
+#include <drivers/uart.h>
+};
+
+class TestClass {
+	public:
+		unsigned long value;
+		TestClass(unsigned long v) {
+			value = v;
+		}
+		void increment() {
+			value++;
+		}
+		void increment(unsigned long v) {
+			value += v;
+		}
+};
+
+extern "C" void cpp_demo(unsigned long v)
+{
+	TestClass tc = TestClass(v);
+	tc.increment();
+	uart_hexn(tc.value);
+}
diff --git a/usr/main.c b/usr/main.c
index a4c6048..0308d4b 100644
--- a/usr/main.c
+++ b/usr/main.c
@@ -4,10 +4,11 @@
 #include <graphics/lfb.h>
 #include <symbols.h>
 #include <sys/schedule.h>
+#include <usr/cxx.h>
+#include <usr/math.h>
 #include <usr/string.h>
 #include <usr/timed.h>
 #include <usr/uart.h>
-#include <usr/math.h>
 
 static struct SysTimerInfo stime_0 = {
 	.tick_rate = 5000000,
@@ -99,4 +100,5 @@ void main(void)
 	//add_thread(consumer, 0, 3);
 	//add_thread(test_super, 0, 4);
 	//subscribe_irq(SYS_TIMER_3_IRQ, gptest, &stime_3);
+	cpp_demo(53);
 }
-- 
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