18 lines
		
	
	
		
			197 B
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			18 lines
		
	
	
		
			197 B
		
	
	
	
		
			C++
		
	
	
	
	
	
#pragma once
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// null, no cost mutex
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namespace c11log {
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namespace details {
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struct null_mutex
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{
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    void lock() {}
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    void unlock() {}
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    bool try_lock()
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    {
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        return true;
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    }
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};
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}
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}
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