WASM demo

This repo contains a brief demo for WebAssembly and Emscripten.

Emscripten

Links:

• WASM
• emscripten
• Emscripten Documentation
  • Download and install
  • Emscripten tutorial
  • Embind
  • emscripten::val

Setup

• Install emscripten (MAC OS and Ubuntu):

$ ./install.sh
[...]
~/dn/wasm-demo/third_party/emsdk [main] $ ./emsdk activate latest
Resolving SDK alias 'latest' to '3.1.59'
Resolving SDK version '3.1.59' to 'sdk-releases-e20ee09a8a740544c4bc6de5d4ba5f81f74b74d6-64bit'
Setting the following tools as active:
   node-16.20.0-64bit
   python-3.9.2-64bit
   releases-e20ee09a8a740544c4bc6de5d4ba5f81f74b74d6-64bit

Next steps:
- To conveniently access emsdk tools from the command line,
  consider adding the following directories to your PATH:
    /Users/dn/dn/wasm-demo/third_party/emsdk
    /Users/dn/dn/wasm-demo/third_party/emsdk/upstream/emscripten
- This can be done for the current shell by running:
    source "/Users/dn/dn/wasm-demo/third_party/emsdk/emsdk_env.sh"
- Configure emsdk in your shell startup scripts by running:
    echo 'source "/Users/dn/dn/wasm-demo/third_party/emsdk/emsdk_env.sh"' >> $HOME/.zprofile

• Export paths to compilers:

source "/Users/dn/dn/wasm-demo/third_party/emsdk/emsdk_env.sh"

• Check compiler version:

[wasm-demo] $ em++ --version
shared:INFO: (Emscripten: Running sanity checks)
emcc (Emscripten gcc/clang-like replacement + linker emulating GNU ld) 3.1.59 (0e4c5994eb5b8defd38367a416d0703fd506ad81)
Copyright (C) 2014 the Emscripten authors (see AUTHORS.txt)
This is free and open source software under the MIT license.
There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

Note: If you prefer Docker environment, you can find an official emsdk Docker.