AdvC++ - różnica międfzy starą alokacją a smart pointerami

AdvancedCppV2/Presentation/exercises/resource/CMakeLists.txt

@@ -12,3 +12,12 @@ set(SRC_LIST
 add_executable(${PROJECT_NAME} ${SRC_LIST})
 target_compile_options(${PROJECT_NAME} PUBLIC -Wall -Werror -Wpedantic -Wextra)
 target_include_directories(${PROJECT_NAME} PUBLIC ${CMAKE_SOURCE_DIR})
+project(Resource2)
+
+set(SRC_LIST
+    resource2.cpp
+)
+
+add_executable(${PROJECT_NAME} ${SRC_LIST})
+target_compile_options(${PROJECT_NAME} PUBLIC -Wall -Werror -Wpedantic -Wextra)
+target_include_directories(${PROJECT_NAME} PUBLIC ${CMAKE_SOURCE_DIR})

AdvancedCppV2/Presentation/exercises/resource/resource.cpp

@@ -27,6 +27,7 @@ int main(int argc, char* argv[]) {
         delete rsc;
     } catch (std::logic_error& e) {
         std::cout << e.what() << '\n';
+        // wyciek pamięci bo nie ma delete
     }
     return 0;
 }

AdvancedCppV2/Presentation/exercises/resource/resource2.cpp

@@ -0,0 +1,31 @@
+#include <iostream>
+#include <memory>
+#include <stdexcept>
+
+class Resource {
+public:
+    void use(const char* N) {
+        std::cout << "Using resource. Passed " << *N << '\n';
+        if (*N == 'd') {
+            throw std::logic_error("Passed d. d is prohibited.");
+        }
+    };
+};
+
+int main(int argc, char* argv[]) {
+    if (argc != 2) {
+        std::cerr << "You need to pass 1 argument" << '\n';
+        exit(-1);
+    }
+
+    const char* arg = argv[1];
+    std::unique_ptr<Resource> rsc = nullptr;
+
+    try {
+        rsc = std::make_unique<Resource>();
+        rsc->use(arg);
+    } catch (std::logic_error& e) {
+        std::cout << e.what() << '\n';
+    }
+    return 0;
+}