4 In this example, the application in `main.cc` initializes and registers a tracer
5 provider from the [OpenTelemetry
6 SDK](https://github.com/open-telemetry/opentelemetry-cpp). The application then
7 calls a `foo_library` which has been instrumented using the [OpenTelemetry
8 API](https://github.com/open-telemetry/opentelemetry-cpp/tree/main/api).
9 Resulting telemetry is directed to stdout through the StdoutSpanExporter.
11 See [CONTRIBUTING.md](../../CONTRIBUTING.md) for instructions on building and