xo-numeric/xo-simulator/README.md
Roland Conybeare 77d12d4b91 Add 'xo-simulator/' from commit '3452e68e0c'
git-subtree-dir: xo-simulator
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2025-05-11 16:00:50 -05:00

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# simulator library
in-memory deterministic simulator
## Getting Started
### build + install dependencies
build+install these first
- xo-reactor [github.com/Rconybea/xo-reactor](https://github.com/Rconybea/xo-reactor)
- xo-ordinaltree [github.com/Rconybea/xo-ordinaltree](https://github.com/Rconybea/xo-ordinaltree)
### build + install xo-simulator
```
$ cd xo-simulator
$ mkdir build
$ cd build
$ INSTALL_PREFIX=/usr/local # or wherever you prefer
$ cmake -DCMAKE_MODULE_PATH=${INSTALL_PREFIX}/share/cmake -DCMAKE_PREFIX_PATH=${INSTALL_PREFIX} -DCMAKE_INSTALL_PREFIX=${INSTALL_PREFIX} ..
$ make
$ make install
```
(also see .github/workflows/main.yml)
### build for unit test coverage
```
$ cd xo-simulator
$ mkdir ccov
$ cd ccov
$ cmake -DCMAKE_MODULE_PATH=${INSTALL_PREFIX}/share/cmake -DCMAKE_PREFIX_PATH=${INSTALL_PREFIX} -DCODE_COVERAGE=ON -DCMAKE_BUILD_TYPE=Debug ..
```
## Development
### LSP support
LSP looks for compile commands in the root of the source tree;
cmake creates them in the root of its build directory.
```
$ cd xo-simulator
$ ln -s build/compile_commands.json
```
### display cmake variables
- `-L` list variables
- `-A` include 'advanced' variables
- `-H` include help text
```
$ cd xo-simulator/build
$ cmake -LAH
```