oe-selftest: add a cpp-example recipe

This simple C++ project supports compilation with CMake and Meson.
(Autotool support could be added later on.)
It's supposed to be used with oe-selftest.

An artificial project has several advantages over compiling a normal
CMake or Meson based project for testing purposes:
- It is much faster because it can be kept minimalistic
- It can cover multiple odd corner cases
- No one will change it in an unpredictable way
- It can support multiple build tools with only one C++ codebase

(From OE-Core rev: 4904e772470b0d6e5d98ef0344b3f2bf54214661)

Signed-off-by: Adrian Freihofer <adrian.freihofer@siemens.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 18 insertions, 0 deletions

diff --git a/meta-selftest/recipes-test/cpp/files/cpp-example.cpp b/meta-selftest/recipes-test/cpp/files/cpp-example.cpp
new file mode 100644
index 0000000000..9889554e0c
--- /dev/null
+++ b/meta-selftest/recipes-test/cpp/files/cpp-example.cpp
@@ -0,0 +1,18 @@
+/*
+ * Copyright OpenEmbedded Contributors
+ *
+ * SPDX-License-Identifier: MIT
+ */
+
+#include "cpp-example-lib.hpp"
+
+#include <iostream>
+
+int main()
+{
+    auto cpp_example = CppExample();
+    std::cout << "C++ example linking " << cpp_example.get_string() << std::endl;
+    std::cout << "Linking json-c version " << cpp_example.get_json_c_version() << std::endl;
+    cpp_example.print_json();
+    return 0;
+}