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alias: Design Flexibility

Explore how alias declarations in D programming enhance design flexibility by allowing fundamental types like int or double to be abstracted into meaningful type names. Understand how this approach improves code readability and maintainability by decoupling user code from implementation details, enabling safer and easier type changes within structs and classes.

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Design flexibility

For flexibility, even fundamental types like int can have aliases:

D
alias CustomerNumber = int;
alias CompanyName = string;
// ...
struct Customer {
CustomerNumber number;
CompanyName company;
// ...
}
void main() {
}

If the users of this struct always ...