46 lines
		
	
	
		
			905 B
		
	
	
	
		
			C++
		
	
	
	
			
		
		
	
	
			46 lines
		
	
	
		
			905 B
		
	
	
	
		
			C++
		
	
	
	
| //===----------------------------------------------------------------------===//
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| //
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| //                     The LLVM Compiler Infrastructure
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| //
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| // This file is distributed under the University of Illinois Open Source
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| // License. See LICENSE.TXT for details.
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| //
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| //===----------------------------------------------------------------------===//
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| 
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| // <system_error>
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| 
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| // class error_code
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| 
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| // template <ErrorCodeEnum E> error_code& operator=(E e);
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| 
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| #include <system_error>
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| #include <cassert>
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| 
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| enum testing
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| {
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|     zero, one, two
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| };
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| 
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| namespace std
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| {
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| 
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| template <> struct is_error_code_enum<testing> : public std::true_type {};
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| 
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| }
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| 
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| std::error_code
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| make_error_code(testing x)
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| {
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|     return std::error_code(static_cast<int>(x), std::generic_category());
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| }
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| 
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| int main()
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| {
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|     {
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|         std::error_code ec;
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|         ec = two;
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|         assert(ec.value() == 2);
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|         assert(ec.category() == std::generic_category());
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|     }
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| }
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