91 lines
		
	
	
		
			3.1 KiB
		
	
	
	
		
			C++
		
	
	
	
			
		
		
	
	
			91 lines
		
	
	
		
			3.1 KiB
		
	
	
	
		
			C++
		
	
	
	
| //===----------------------------------------------------------------------===//
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| //
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| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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| // See https://llvm.org/LICENSE.txt for license information.
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| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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| //
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| //===----------------------------------------------------------------------===//
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| 
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| // <string>
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| 
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| // basic_string<charT,traits,Allocator>&
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| //   append(const basic_string<charT,traits>& str);
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| 
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| #include <string>
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| #include <cassert>
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| 
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| #include "test_macros.h"
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| #include "min_allocator.h"
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| 
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| template <class S>
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| void
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| test(S s, S str, S expected)
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| {
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|     s.append(str);
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|     LIBCPP_ASSERT(s.__invariants());
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|     assert(s == expected);
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| }
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| 
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| int main(int, char**)
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| {
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|     {
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|     typedef std::string S;
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|     test(S(), S(), S());
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|     test(S(), S("12345"), S("12345"));
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|     test(S(), S("1234567890"), S("1234567890"));
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|     test(S(), S("12345678901234567890"), S("12345678901234567890"));
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| 
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|     test(S("12345"), S(), S("12345"));
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|     test(S("12345"), S("12345"), S("1234512345"));
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|     test(S("12345"), S("1234567890"), S("123451234567890"));
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|     test(S("12345"), S("12345678901234567890"), S("1234512345678901234567890"));
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| 
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|     test(S("1234567890"), S(), S("1234567890"));
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|     test(S("1234567890"), S("12345"), S("123456789012345"));
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|     test(S("1234567890"), S("1234567890"), S("12345678901234567890"));
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|     test(S("1234567890"), S("12345678901234567890"), S("123456789012345678901234567890"));
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| 
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|     test(S("12345678901234567890"), S(), S("12345678901234567890"));
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|     test(S("12345678901234567890"), S("12345"), S("1234567890123456789012345"));
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|     test(S("12345678901234567890"), S("1234567890"), S("123456789012345678901234567890"));
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|     test(S("12345678901234567890"), S("12345678901234567890"),
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|          S("1234567890123456789012345678901234567890"));
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|     }
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| #if TEST_STD_VER >= 11
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|     {
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|     typedef std::basic_string<char, std::char_traits<char>, min_allocator<char>> S;
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|     test(S(), S(), S());
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|     test(S(), S("12345"), S("12345"));
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|     test(S(), S("1234567890"), S("1234567890"));
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|     test(S(), S("12345678901234567890"), S("12345678901234567890"));
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| 
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|     test(S("12345"), S(), S("12345"));
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|     test(S("12345"), S("12345"), S("1234512345"));
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|     test(S("12345"), S("1234567890"), S("123451234567890"));
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|     test(S("12345"), S("12345678901234567890"), S("1234512345678901234567890"));
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| 
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|     test(S("1234567890"), S(), S("1234567890"));
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|     test(S("1234567890"), S("12345"), S("123456789012345"));
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|     test(S("1234567890"), S("1234567890"), S("12345678901234567890"));
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|     test(S("1234567890"), S("12345678901234567890"), S("123456789012345678901234567890"));
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| 
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|     test(S("12345678901234567890"), S(), S("12345678901234567890"));
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|     test(S("12345678901234567890"), S("12345"), S("1234567890123456789012345"));
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|     test(S("12345678901234567890"), S("1234567890"), S("123456789012345678901234567890"));
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|     test(S("12345678901234567890"), S("12345678901234567890"),
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|          S("1234567890123456789012345678901234567890"));
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|     }
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| #endif
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| 
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| #if TEST_STD_VER > 3
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|     {   // LWG 2946
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|     std::string s;
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|     s.append({"abc", 1});
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|     assert(s.size() == 1);
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|     assert(s == "a");
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|     }
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| #endif
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| 
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|   return 0;
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| }
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