21 lines
910 B
Markdown
21 lines
910 B
Markdown
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# library
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A static library + an executable that consumes it.
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```sh
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cd examples/library
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crafter-build
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./bin/math-app-x86_64-pc-linux-gnu-native/math-app
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```
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Layout:
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```
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mylib/MyMath.cppm # the library's module interface
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main.cpp # the consumer
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project.cpp # declares both, with cfg.dependencies wiring them
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```
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Two `Configuration` objects: a `LibraryStatic` and an `Executable` whose `dependencies` points at the lib. The build runs them in parallel and links `libMyMath.a` into `math-app` automatically. `import MyMath;` in `main.cpp` resolves through the dep graph — no header paths to hand-wire.
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The `static unique_ptr<Configuration>` for the lib is the canonical lifetime pattern: the parent's `dependencies` is `vector<Configuration*>` (raw), so something needs to keep the lib alive across the function return. File-local `static` does it cleanly without a global pool.
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