Proper initial commit

CMakeLists.txt

@@ -0,0 +1,25 @@
+cmake_minimum_required(VERSION 3.31)
+project(atm_admin_program)
+
+set(CMAKE_CXX_STANDARD 20)
+
+add_executable(atm_admin_program
+        src/main.cpp)
+
+target_compile_options(${PROJECT_NAME} PRIVATE
+        # Make all warnings into errors
+        -Werror
+
+        # Basic warning flags
+        -Wall                      # Enable all common warnings
+        -Wextra                    # Enable extra warnings not covered by -Wall
+        -Wpedantic                 # Issue warnings demanded by strict ISO C and ISO C++
+        -pedantic-errors           # Like -Wpedantic but errors instead of warnings
+
+        # Specific warning categories
+        -Wshadow                   # Warn when a variable declaration shadows another
+        -Wcast-align              # Warn for potential performance problems from memory alignment
+        -Wconversion              # Warn on type conversions that may lose data
+        -Wsign-conversion         # Warn on sign conversions
+        -Wnull-dereference       # Warn about null pointer dereference
+)

src/main.cpp

@@ -0,0 +1,5 @@
+#include <iostream>
+
+int main() {
+    std::cout << "Hello, world!";
+}