Simple example of running C code from Rust code, based on the examples at:

1. https://github.com/alexcrichton/gcc-rs
2. https://users.rust-lang.org/t/linking-with-custom-c-library/637/4
3. http://doc.crates.io/build-script.html

To build it, just type cargo build. To build and run, just type cargo run.

For Windows users', you need to run it from a command line setup with the MSVS compiler environment variables. You can create a batch file named vs.bat like this:

@echo off

:: Path to your Visual Studio folder.
::
:: Examples:
::     C:\Program Files\Microsoft Visual Studio 9.0
::     F:\VisualStudio2015
set VISUAL_STUDIO_FOLDER=F:\VisualStudio2015

:: Load compilation environment
call "%VISUAL_STUDIO_FOLDER%\VC\vcvarsall.bat" x64

:: Invoke compiler with any options passed to this batch file
%*

And put it on your path variable. Therefore just call vs.bat cargo run and it would set up the MSVS environment variable and call the command cargo run to build the project.

This also allow you to call vs.bat cargo run from other shells environments like Cygwin's Mintty command line.