add Chapter08

Chapter08/template_function_point.cpp

@@ -0,0 +1,29 @@
+#include <cstdio>
+
+struct point { 
+    int x; 
+    int y; 
+
+    point operator+(const point& other) const { 
+        return point{x + other.x, y + other.y}; 
+    } 
+
+    void print() { 
+        printf("x = %d, y = %d\r\n", x, y); 
+    } 
+}; 
+
+template<typename T> 
+T add(T a, T b) { 
+   return a + b;  
+} 
+
+int main() {  
+
+    point a{1, 2}; 
+    point b{2, 1}; 
+
+    auto c = add(a, b); 
+    c.print();
+    return 0; 
+}