gcc/jit/docs/cp/intro/tutorial01.rst

.. Copyright (C) 2014-2022 Free Software Foundation, Inc.
   Originally contributed by David Malcolm <dmalcolm@redhat.com>

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.. default-domain:: cpp

Tutorial part 1: "Hello world"
==============================

Before we look at the details of the API, let's look at building and
running programs that use the library.

Here's a toy "hello world" program that uses the library's C++ API to
synthesize a call to `printf` and uses it to write a message to stdout.

Don't worry about the content of the program for now; we'll cover
the details in later parts of this tutorial.

   .. literalinclude:: ../../examples/tut01-hello-world.cc
    :language: c++

Copy the above to `tut01-hello-world.cc`.

Assuming you have the jit library installed, build the test program
using:

.. code-block:: console

  $ gcc \
      tut01-hello-world.cc \
      -o tut01-hello-world \
      -lgccjit

You should then be able to run the built program:

.. code-block:: console

  $ ./tut01-hello-world
  hello world