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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 charT* s, size_type n);
#include <string>
#include <stdexcept>
#include <cassert>
template <class S>
void
test(S s, const typename S::value_type* str, typename S::size_type n, S expected)
{
s.assign(str, n);
assert(s.__invariants());
assert(s == expected);
}
int main()
{
typedef std::string S;
test(S(), "", 0, S());
test(S(), "12345", 3, S("123"));
test(S(), "12345", 4, S("1234"));
test(S(), "12345678901234567890", 0, S());
test(S(), "12345678901234567890", 1, S("1"));
test(S(), "12345678901234567890", 3, S("123"));
test(S(), "12345678901234567890", 20, S("12345678901234567890"));
test(S("12345"), "", 0, S());
test(S("12345"), "12345", 5, S("12345"));
test(S("12345"), "1234567890", 10, S("1234567890"));
test(S("12345678901234567890"), "", 0, S());
test(S("12345678901234567890"), "12345", 5, S("12345"));
test(S("12345678901234567890"), "12345678901234567890", 20,
S("12345678901234567890"));
}
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