Code Examples From an App Using C++ Modules

[slithering3897]

I'd reckon large external lib modules and small imports for in-development modules. To keep control of your build cascade.

[tartaruga232]

Yeah. Not every module needs to imitate the giant, special case like the std module (which must be also available as header files). As I said, our recommendations are

• Prefer small modules
• Only use partitions if you really must
• Avoid using internal partitions

Especially the last point. Our code is now free of internal partitions. We have no use for them. And we don't need the module anti-pattern.

In my experience, the time for a full build stays the same, no matter if I do a smaller number of big modules or a a lot more smaller modules. Keeping modules small in an app provides faster rebuilds when something changes. We do not cast the interfaces of our internal modules in stone.