.. _program_listing_file_include_opentelemetry_trace_propagation_noop_propagator.h:

Program Listing for File noop_propagator.h
==========================================

|exhale_lsh| :ref:`Return to documentation for file <file_include_opentelemetry_trace_propagation_noop_propagator.h>` (``include/opentelemetry/trace/propagation/noop_propagator.h``)

.. |exhale_lsh| unicode:: U+021B0 .. UPWARDS ARROW WITH TIP LEFTWARDS

.. code-block:: cpp

   #pragma once
   
   #include "opentelemetry/trace/propagation/text_map_propagator.h"
   #include "opentelemetry/version.h"
   
   OPENTELEMETRY_BEGIN_NAMESPACE
   namespace trace
   {
   namespace propagation
   {
   
   class NoOpPropagator : public TextMapPropagator
   {
   public:
     context::Context Extract(const TextMapCarrier & /*carrier*/,
                              context::Context &context) noexcept override
     {
       return context;
     }
   
     void Inject(TextMapCarrier & /*carrier*/, const context::Context &context) noexcept override {}
   };
   }  // namespace propagation
   }  // namespace trace
   OPENTELEMETRY_END_NAMESPACE