Getting started

About Ü

Ü is a compiled statically-typed general purpose programming language with C-like syntax. Ü supports object-oriented paradigm, allows to write generic code, has some functional programming elements and many other useful features. Ü is created with error prevention in mind, has safe/unsafe code separation and thus is memory-safe and thread-safe.

Getting Ü package

It’s recommended to download one of the latest Ü builds for your system from Ü project Github page. There are also downloads on the Ü website, but they are usually slightly outdated.

Ü distribution contains various components, including Ü compiler, build system, standard library, language server and C++ header converter. But having Ü package isn’t enough for building Ü programs. System-specific thridparty components may be also necessary, like MSVC on Windows, libc and GCC libraries on GNU/Linux, etc. So, if you get some build error indicating that such components are missing, install them. For cross-compiling you may also require additional SDKs for the target platform.

Hello world program

Hello world in Ü looks like this:

hello_world.u

 import "/main_wrapper.u"
 import "/stdout.u"

 pretty_main
 {
     ust::stdout_print( "Hello, world!\n" );
     return 0;
 }

You can compile it, using Ü build system executable via the following command:

u.._build_system build_single hello_world.u

Alternatively you can create an empty Ü project using the command below:

u.._build_system init

This command creates a project consisting of two files - build.u file, containing build instructions and main.u source file. After project creation you can build it:

u.._build_system build

Having a build.u file is necessary for building complex programs - with multiple source files, with dependencies, non-trivial properties, etc. See build system documentation for more details.

Examples

There are many examples of basic Ü language usage available here. Each Ü file in the directory above may be compiled just like a hello world program shown previously. It’s recommended to see these examples and read documentation, describing features used in each example.