ostringstream_members.cc [plain text]
#include <sstream>
#include <testsuite_hooks.h>
void test01()
{
bool test = true;
std::ostringstream os01;
const std::string str00;
const std::string str01 = "123";
std::string str02;
const int i01 = 123;
int a,b;
std::ios_base::iostate state1, state2, statefail, stateeof;
statefail = std::ios_base::failbit;
stateeof = std::ios_base::eofbit;
str02 = os01.str();
VERIFY( str00 == str02 );
os01.str(str01);
str02 = os01.str();
VERIFY( str01 == str02 );
#ifdef DEBUG_ASSERT
assert(test);
#endif
}
void
redirect_buffer(std::ios& stream, std::streambuf* new_buf)
{ stream.rdbuf(new_buf); }
std::streambuf*
active_buffer(std::ios& stream)
{ return stream.rdbuf(); }
void test02()
{
bool test = true;
const char* strlit01 = "fuck war";
const char* strlit02 = "two less cars abstract riot crew, critical mass/SF";
const std::string str00;
const std::string str01(strlit01);
std::string str02;
std::stringbuf sbuf(str01);
std::streambuf* pbasebuf0 = &sbuf;
std::ostringstream sstrm1;
VERIFY( sstrm1.str() == str00 );
std::stringbuf* const buf1 = sstrm1.rdbuf();
std::streambuf* pbasebuf1 = active_buffer(sstrm1);
redirect_buffer(sstrm1, &sbuf);
std::stringbuf* const buf2 = sstrm1.rdbuf();
std::streambuf* pbasebuf2 = active_buffer(sstrm1);
VERIFY( buf1 == buf2 );
VERIFY( pbasebuf1 != pbasebuf2 );
VERIFY( pbasebuf2 == pbasebuf0 );
VERIFY( sstrm1.str() != str01 );
VERIFY( sstrm1.str() == str00 );
std::stringbuf* psbuf = dynamic_cast<std::stringbuf*>(pbasebuf2);
str02 = psbuf->str();
VERIFY( str02 == str01 );
}
void
test03()
{
bool test = false;
std::string str01;
std::string::iterator __i_start = str01.begin();
std::string::iterator __i_end = str01.end();
std::string::size_type len = str01.size();
test = __i_start == __i_end;
VERIFY( len == 0 );
std::string str02("these golden days, i spend waiting for you:\n"
"Betty Carter on Verve with I'm Yours and You're Mine.");
__i_start = str02.begin();
__i_end = str02.end();
len = str02.size();
VERIFY( __i_start != __i_end );
VERIFY( len != 0 );
std::ostringstream ostrstream0;
std::string str03 = ostrstream0.str();
__i_start = str03.begin();
__i_end = str03.end();
len = str03.size();
VERIFY( __i_start == __i_end );
VERIFY( len == 0 );
VERIFY( str01 == str03 );
}
class derived_oss: public std::ostringstream
{
public:
derived_oss() : std::ostringstream() { }
};
void
test04()
{
bool test = true;
derived_oss yy;
yy << "buena vista social club\n";
VERIFY( yy.str() == std::string("buena vista social club\n") );
}
int main()
{
test01();
test02();
test03();
test04();
return 0;
}