C++ Modules: Year 2021

on YouTube ↗36m

" summary

C++20 modules are production-ready in MSVC, present as GCC 11 experimental and on a Clang branch, with build support in Ninja, Build2, Meson and CMake experimental. Modules provide true interface/implementation separation, isolation from macros, header units and reusable .ifc metadata files that are an order of magnitude smaller than PCHs. Compilation throughput typically improves 5–10x in tests and can reach 42x in real workloads. The .ifc format is homogeneous tables plus string indexes, suitable for tooling, distribution and language bindings.

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" chapters (6)

1. 0:00Introduction to C++ modules
2. 10:43Compiler and toolchain support
3. 15:05Tooling and semantic representation
4. 20:16Deep dive into IFC structure
5. 24:58Call to action
6. 26:40Q&A and closing

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