How do I use modules to speed up builds for embedded systems?

Using modules in C++ can significantly speed up builds for embedded systems by improving compilation efficiency. By breaking down your code into smaller, manageable pieces, you can reduce the amount of code that needs to be recompiled when changes are made.

Here's a brief guide on how to implement modules in your C++ projects:

1. Create Module Interface

Define a module interface file (e.g., MyModule.ixx) that declares the functions, classes, and variables you want to expose.

2. Implement the Module

Implement the declared module in a corresponding implementation file (e.g., MyModule.ipp).

3. Use the Module

In your main program file, import the module to utilize the defined functionalities.

Example

// MyModule.ixx export module MyModule; export void myFunction() { // Code implementation... } // MyModule.ipp module MyModule; void myFunction() { // Code implementation... } // main.cpp import MyModule; int main() { myFunction(); return 0; }

C++ modules embedded systems build speed compilation efficiency

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