82 lines
2.5 KiB
C++
82 lines
2.5 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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// <string>
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// basic_string<charT,traits,Allocator>& append(const charT* s);
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#include <string>
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#include <stdexcept>
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#include <cassert>
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#include "test_macros.h"
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#include "min_allocator.h"
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template <class S>
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void
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test(S s, const typename S::value_type* 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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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());
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test(S(), "12345", S("12345"));
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test(S(), "12345678901234567890", S("12345678901234567890"));
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test(S("12345"), "", S("12345"));
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test(S("12345"), "12345", S("1234512345"));
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test(S("12345"), "1234567890", S("123451234567890"));
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test(S("12345678901234567890"), "", S("12345678901234567890"));
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test(S("12345678901234567890"), "12345", S("1234567890123456789012345"));
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test(S("12345678901234567890"), "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());
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test(S(), "12345", S("12345"));
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test(S(), "12345678901234567890", S("12345678901234567890"));
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test(S("12345"), "", S("12345"));
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test(S("12345"), "12345", S("1234512345"));
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test(S("12345"), "1234567890", S("123451234567890"));
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test(S("12345678901234567890"), "", S("12345678901234567890"));
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test(S("12345678901234567890"), "12345", S("1234567890123456789012345"));
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test(S("12345678901234567890"), "12345678901234567890",
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S("1234567890123456789012345678901234567890"));
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}
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#endif
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{ // test appending to self
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typedef std::string S;
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S s_short = "123/";
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S s_long = "Lorem ipsum dolor sit amet, consectetur/";
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s_short.append(s_short.c_str());
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assert(s_short == "123/123/");
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s_short.append(s_short.c_str());
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assert(s_short == "123/123/123/123/");
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s_short.append(s_short.c_str());
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assert(s_short == "123/123/123/123/123/123/123/123/");
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s_long.append(s_long.c_str());
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assert(s_long == "Lorem ipsum dolor sit amet, consectetur/Lorem ipsum dolor sit amet, consectetur/");
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}
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return 0;
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}
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