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//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// <string>
// basic_string<charT,traits,Allocator>&
// assign(const basic_string<charT,traits>& str);
#include <string>
#include <cassert>
template <class S>
void
test(S s, S str, S expected)
{
s.assign(str);
assert(s.__invariants());
assert(s == expected);
}
int main()
{
typedef std::string S;
test(S(), S(), S());
test(S(), S("12345"), S("12345"));
test(S(), S("1234567890"), S("1234567890"));
test(S(), S("12345678901234567890"), S("12345678901234567890"));
test(S("12345"), S(), S());
test(S("12345"), S("12345"), S("12345"));
test(S("12345"), S("1234567890"), S("1234567890"));
test(S("12345"), S("12345678901234567890"), S("12345678901234567890"));
test(S("1234567890"), S(), S());
test(S("1234567890"), S("12345"), S("12345"));
test(S("1234567890"), S("1234567890"), S("1234567890"));
test(S("1234567890"), S("12345678901234567890"), S("12345678901234567890"));
test(S("12345678901234567890"), S(), S());
test(S("12345678901234567890"), S("12345"), S("12345"));
test(S("12345678901234567890"), S("1234567890"), S("1234567890"));
test(S("12345678901234567890"), S("12345678901234567890"),
S("12345678901234567890"));
}
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