Using C/C++ to Generate wasm

Introduction

This is a very simple example of using C/C++ to generate wasm binary file.

• math.c: The source file, writing in C.
• math.wasm: The WebAssembly binary file.
• index.html: The entry point of this example.

Code Details

The math.c contains two methods: add and square.

In the index.html, the loadWebAssembly method takes a url of .wasm file and convert to a WebAssembly Instance.

Preview

1. Start a web server.
2. Use the browser that supports WebAssembly to open the index.html.

Develop

1. Install Emscripten.
2. Run ./build.sh.

       Emscripten
math.c   ----->   math.wasm