constant macro arrays
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+# `car`
+
+macro based array manipulation constant techniques
+
+## you wanted a quick LUT in const? here you go!
+
+```rust
+// please note that this is in no way performant or a good idea.
+let squares: [usize; 0xffffffff] = car::from_fn!(|i| i * 2);
+```
+
+## completely stable!
+
+for once! \ No newline at end of file