#include <iterator>
#include <sstream>
#include <algorithm>
#include <testsuite_hooks.h>
void test01()
{
bool test __attribute__((unused)) = true;
using namespace std;
typedef istreambuf_iterator<wchar_t> in_iterator_type;
typedef ostreambuf_iterator<wchar_t> out_iterator_type;
const wchar_t data1[] = L"Drei Phantasien nach Friedrich Holderlin";
const wstring str1(data1);
wistringstream iss1(str1);
in_iterator_type beg1(iss1);
in_iterator_type end1;
wostringstream oss1;
out_iterator_type out1(oss1);
out1 = copy(beg1, beg1, out1);
VERIFY( oss1.str().empty() );
out1 = copy(end1, end1, out1);
VERIFY( oss1.str().empty() );
out1 = copy(beg1, end1, out1);
VERIFY( oss1.str() == str1 );
*out1 = L'x';
VERIFY( oss1.str() == str1 + L'x' );
oss1.str(L"");
iss1.seekg(0);
oss1.seekp(0);
oss1.str(L"");
out1 = copy(beg1, end1, out1);
VERIFY( oss1.str() == str1 );
*out1 = L'y';
VERIFY( oss1.str() == str1 + L'y' );
oss1.str(L"");
out1 = copy(beg1, end1, out1);
VERIFY( oss1.str() == L"" );
iss1.seekg(0);
out1 = copy(beg1, end1, out1);
VERIFY( oss1.str() == str1 );
}
int main()
{
test01();
return 0;
}