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fix compile problem: Clone method of abstract class SpanContext is no implemented #34

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fix compile problem: Clone method of abstract class SpanContext is no implemented #34

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4 changes: 4 additions & 0 deletions zipkin_opentracing/src/opentracing.cc
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Original file line number Diff line number Diff line change
Expand Up @@ -108,6 +108,10 @@ class OtSpanContext : public ot::SpanContext {
return span_context_.id() != 0 && !span_context_.trace_id().empty();
}

std::unique_ptr<SpanContext> Clone() const noexcept
{
return nullptr;
}
private:
zipkin::SpanContext span_context_;
mutable std::mutex baggage_mutex_;
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