54 lines
1.5 KiB
C++
54 lines
1.5 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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// template<class charT, class traits, class Allocator>
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// void swap(basic_string<charT,traits,Allocator>& lhs,
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// basic_string<charT,traits,Allocator>& rhs);
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#include <string>
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#include <stdexcept>
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#include <algorithm>
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#include <cassert>
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template <class S>
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void
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test(S s1, S s2)
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{
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S s1_ = s1;
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S s2_ = s2;
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swap(s1, s2);
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assert(s1.__invariants());
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assert(s2.__invariants());
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assert(s1 == s2_);
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assert(s2 == s1_);
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}
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int main()
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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(""), S("12345"));
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test(S(""), S("1234567890"));
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test(S(""), S("12345678901234567890"));
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test(S("abcde"), S(""));
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test(S("abcde"), S("12345"));
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test(S("abcde"), S("1234567890"));
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test(S("abcde"), S("12345678901234567890"));
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test(S("abcdefghij"), S(""));
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test(S("abcdefghij"), S("12345"));
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test(S("abcdefghij"), S("1234567890"));
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test(S("abcdefghij"), S("12345678901234567890"));
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test(S("abcdefghijklmnopqrst"), S(""));
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test(S("abcdefghijklmnopqrst"), S("12345"));
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test(S("abcdefghijklmnopqrst"), S("1234567890"));
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test(S("abcdefghijklmnopqrst"), S("12345678901234567890"));
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}
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