fix mistakes

Author: sjoerdev

content/posts/cpp-for-cscharp.md

@@ -126,7 +126,7 @@ What makes this one different from the other smart pointers:
 void test()
 {
     // making a unique pointer
-    unique_ptr<Foo> foo_ptr = make_unique<Foo>(new Foo());
+    std::unique_ptr<Foo> foo_ptr = std::make_unique<Foo>();
 
     // No need to delete, gets freed at end of scope
 }
@@ -149,10 +149,10 @@ What makes this one different from the other smart pointers:
 void test()
 {
     // making a shared pointer
-    shared_ptr<Foo> sp_1 = make_shared<Foo>(new Foo());
+    std::shared_ptr<Foo> sp_1 = std::make_shared<Foo>();
 
     // sharing ownership
-    shared_ptr<int> sp_2 = sp_1;
+    std::shared_ptr<int> sp_2 = sp_1;
 
     // get amount of shares
     int shares = sp_1.use_count() // there are now 2 shares
@@ -188,10 +188,10 @@ What makes this one different from the other smart pointers:
 void test()
 {
     // making a shared pointer
-    shared_ptr<Foo> sp = make_shared<Foo>(new Foo());
+    std::shared_ptr<Foo> sp = std::make_shared<Foo>();
 
     // sharing ownership but with weak pointer
-    weak_ptr<Foo> wp = sp;
+    std::weak_ptr<Foo> wp = sp;
 
     // get amount of shares
     int shares = sp.use_count() // still 1, weak ptr didnt add a share