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81 lines
2.6 KiB
C++
81 lines
2.6 KiB
C++
//===----------------------------------------------------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is dual licensed under the MIT and the University of Illinois Open
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// Source Licenses. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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// <string>
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// basic_string<charT,traits,Allocator>&
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// operator=(const basic_string<charT,traits,Allocator>& str);
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#include <string>
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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 s1, const S& s2)
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{
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s1 = s2;
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LIBCPP_ASSERT(s1.__invariants());
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assert(s1 == s2);
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assert(s1.capacity() >= s1.size());
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}
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int main()
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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("1"), S());
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test(S(), S("1"));
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test(S("1"), S("2"));
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test(S("1"), S("2"));
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test(S(),
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S("abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyz"));
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test(S("123456789"),
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S("abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyz"));
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test(S("1234567890123456789012345678901234567890123456789012345678901234567890"),
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S("abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyz"));
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test(S("1234567890123456789012345678901234567890123456789012345678901234567890"
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"1234567890123456789012345678901234567890123456789012345678901234567890"),
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S("abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyz"));
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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("1"), S());
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test(S(), S("1"));
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test(S("1"), S("2"));
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test(S("1"), S("2"));
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test(S(),
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S("abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyz"));
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test(S("123456789"),
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S("abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyz"));
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test(S("1234567890123456789012345678901234567890123456789012345678901234567890"),
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S("abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyz"));
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test(S("1234567890123456789012345678901234567890123456789012345678901234567890"
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"1234567890123456789012345678901234567890123456789012345678901234567890"),
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S("abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyz"));
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}
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#endif
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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 = {"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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