osh.h

commit d661faf0dc8827cb0550e11aaf353fd2fc013e73
parent edc428afc648095639073bfef10a75332503e432
Author: Oshgnacknak <osh@oshgnacknak.de>
Date:   Mon,  3 Jan 2022 14:30:37 +0100

Add auto_destruct example

Diffstat:
A
examples/auto_destruct.cpp
 | 
45
+++++++++++++++++++++++++++++++++++++++++++++

1 file changed, 45 insertions(+), 0 deletions(-)
diff --git a/examples/auto_destruct.cpp b/examples/auto_destruct.cpp
@@ -0,0 +1,45 @@
+#define OSH_H_IMPLEMENTATION
+#include "osh.h"
+
+using namespace osh;
+
+struct V1 {
+    float x;
+
+    V1(float x = 0) : x(x) {}
+
+    V1 operator+(V1 that) {
+        return {x + that.x};
+    }
+
+    void destruct() {
+        println("V1 destructed: ", x);
+    }
+};
+
+int main() {
+    {
+        AutoDestruct<StringBuffer> a = "Hallo";
+        println("AutoDestruct created: ", a);
+
+        StringBuffer b = a;
+        b.format(", World!");
+        println("AutoDestruct shallow copied and used: ", b);
+    }
+    println("AutoDestruct destructed");
+
+    V1 v; // Not affected by the below
+    {
+        typedef AutoDestruct<V1> V1; // Enable AutoDestruct for the whole scope (c++'s default behavior)
+        println("\nUsing AutoDestruct in arithmetic expressions:");
+        V1 result = V1(10) + V1(20);
+        println("Result: ", result.x);
+
+        v = V1(2494) + result;
+    }
+    V1(50); // Not affected by the above
+
+    println("v has the value: ", v.x);
+
+    return 0; 
+}