/usr/include/spdlog/sinks/null_sink.h is in libspdlog-dev 1:0.16.3-1.
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// Copyright(c) 2015 Gabi Melman.
// Distributed under the MIT License (http://opensource.org/licenses/MIT)
//
#pragma once
#include "base_sink.h"
#include "../details/null_mutex.h"
#include <mutex>
namespace spdlog
{
namespace sinks
{
template <class Mutex>
class null_sink : public base_sink < Mutex >
{
protected:
void _sink_it(const details::log_msg&) override
{}
void _flush() override
{}
};
typedef null_sink<details::null_mutex> null_sink_st;
typedef null_sink<details::null_mutex> null_sink_mt;
}
}
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