Mission Impossible / How to create datatypes which cannot contain invalid state

adrianimboden

4,761 views

01 Introduction

Introduction

02 Enums

Enums - Overview Enums - Hands On Enums - Example Solution

03 Optional

Optional - Overview Optional - Hands On Optional - Example Solution

04 Variant

Variant - Overview Variant - Hands On Variant - Example Solution

05 Final

Final - Hands On Final - Example Solution

Previous: Optional - Hands On Next: Variant - Overview

Possible solution

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#include <cstdint>
#include <iostream>
#include <optional>
struct QualityGoal {
    int32_t quality_reference;
    int32_t maximal_difference;
};
class ProductProducer {
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