Lesson 10: C++ toolchain and basics: Project integration

Concept Explanation

This lesson brings several beginner C++ basics together in one small program. Instead of writing isolated lines, you will build a tiny task list that stores data, adds new entries, and prints the current state in a readable way. The goal is to see how simple structs, vectors, and functions start to feel like pieces of a real program when they work together. You are not aiming for a big application yet. You are practicing how to organize related logic so the code still feels manageable as the feature grows.

Where to Put the Code

1. Start with variables and inputs. Keep includes, main function, and data types explicit.
2. Add processing logic in the middle section.
3. Finish with output and quick validation.

Command Reference

• Compile and run the program, then confirm that both tasks appear with the expected pending status.
• Add one more task and check that the output grows without changing the print function.
• Move repeated logic into a function instead of handling everything inside main().
• Use const where it improves safety and makes the function intent easier to read.

Step-by-step Guide

1. Read the struct and explain what each field represents before you change any code.
2. Compile the baseline version and verify that tasks are stored and displayed in order.
3. Add a helper function for one clear job, such as adding or printing tasks.
4. Make one small change to the output format and compare the result before and after.
5. Finish with a short check: is the code still easy to scan after adding the new behavior?

Practice Exercises

• Create a version that marks one task as completed before printing the list.
• Build a similar mini program for shopping items using the same struct-plus-vector pattern.
• Rewrite the example so main() mostly coordinates functions instead of doing all the work directly.

Coding Challenges

• Prevent empty task titles from being added and decide where that rule belongs.
• Compare a version with all logic in main() against a version split into helper functions, then explain which one is easier to extend.

Mini Practice Tasks

• Rename one function or variable so its purpose is obvious without extra comments.
• Add one quick manual test by inserting a third task and rerunning the program.
• Write one line describing what makes this a small but real project-style example.