istream_extractor_other.cc [plain text]
#include <istream>
#include <sstream>
#include <fstream>
#include <testsuite_hooks.h>
bool test01() {
typedef std::ios::traits_type ctraits_type;
bool test = true;
const std::string str_01;
const std::string str_02("art taylor kickin it on DAKAR");
std::string strtmp;
std::stringbuf isbuf_00(std::ios_base::in);
std::stringbuf isbuf_01(std::ios_base::in | std::ios_base::out);
std::stringbuf isbuf_02(str_01, std::ios_base::in);
std::stringbuf isbuf_03(str_01, std::ios_base::in | std::ios_base::out);
std::stringbuf isbuf_04(str_02, std::ios_base::in);
std::stringbuf isbuf_05(str_02, std::ios_base::in | std::ios_base::out);
std::istream is_00(NULL);
std::istream is_01(&isbuf_01);
std::istream is_02(&isbuf_02);
std::istream is_03(&isbuf_03);
std::istream is_04(&isbuf_04);
std::istream is_05(&isbuf_05);
std::ios_base::iostate state1, state2, statefail, stateeof;
statefail = std::ios_base::failbit;
stateeof = std::ios_base::eofbit;
state1 = is_00.rdstate();
is_00 >> &isbuf_00;
state2 = is_00.rdstate();
VERIFY( state1 != state2 );
VERIFY( static_cast<bool>(state2 & statefail) );
VERIFY( isbuf_00.str() == str_01 );
is_00.clear(std::ios_base::goodbit);
state1 = is_00.rdstate();
is_00 >> &isbuf_01;
state2 = is_00.rdstate();
VERIFY( state1 != state2 );
VERIFY( static_cast<bool>(state2 & statefail) );
VERIFY( isbuf_01.str() == str_01 );
is_00.clear(std::ios_base::goodbit);
state1 = is_00.rdstate();
is_00 >> &isbuf_04;
state2 = is_00.rdstate();
VERIFY( state1 != state2 );
VERIFY( static_cast<bool>(state2 & statefail) );
VERIFY( isbuf_04.str() == str_02 );
is_00.clear(std::ios_base::goodbit);
state1 = is_00.rdstate();
is_00 >> &isbuf_05;
state2 = is_00.rdstate();
VERIFY( state1 != state2 );
VERIFY( static_cast<bool>(state2 & statefail) );
VERIFY( isbuf_05.str() == str_02 );
state1 = is_02.rdstate();
is_02 >> &isbuf_04;
state2 = is_02.rdstate();
VERIFY( state1 != state2 );
VERIFY( static_cast<bool>(state2 & statefail) );
VERIFY( isbuf_04.str() == str_02 ); VERIFY( isbuf_04.sgetc() == 'a' );
is_02.clear(std::ios_base::goodbit);
state1 = is_02.rdstate();
is_02 >> &isbuf_05;
state2 = is_02.rdstate();
VERIFY( state1 != state2 );
VERIFY( static_cast<bool>(state2 & statefail) );
VERIFY( isbuf_05.str() == str_02 ); VERIFY( isbuf_05.sgetc() == 'a' );
state1 = is_04.rdstate();
is_04 >> &isbuf_02;
state2 = is_04.rdstate();
VERIFY( state1 != state2 );
VERIFY( static_cast<bool>(state2 & statefail) );
VERIFY( isbuf_02.str() == str_01 ); VERIFY( isbuf_02.sgetc() == ctraits_type::eof() );
VERIFY( is_04.peek() == ctraits_type::eof() );
is_04.clear(std::ios_base::goodbit);
state1 = is_04.rdstate();
is_04 >> &isbuf_03;
state2 = is_04.rdstate();
VERIFY( state1 == state2 );
VERIFY( !static_cast<bool>(state2 & statefail) );
VERIFY( state2 != stateeof );
strtmp = isbuf_03.str();
VERIFY( strtmp == str_02 ); VERIFY( isbuf_03.sgetc() == 'a' );
VERIFY( is_04.peek() == ctraits_type::eof() );
#ifdef DEBUG_ASSERT
assert(test);
#endif
return test;
}
bool test02() {
bool test = true;
typedef std::ios::traits_type ctraits_type;
const char name_01[] = "istream_extractor_other-1.txt"; const char name_02[] = "istream_extractor_other-2.txt";
std::filebuf fbin, fbout;
fbin.open(name_01, std::ios_base::in);
fbout.open(name_02, std::ios_base::out | std::ios_base::trunc);
VERIFY( fbin.is_open() );
VERIFY( fbout.is_open() );
if (test)
{
std::istream is(&fbin);
is.unsetf(std::ios_base::skipws);
is >> &fbout;
}
fbout.close();
fbin.close();
VERIFY( !fbin.is_open() );
VERIFY( !fbout.is_open() );
#ifdef DEBUG_ASSERT
assert(test);
#endif
return test;
}
void test03()
{
using namespace std;
bool test = true;
{
int i = 0;
std::istringstream iss(" 43");
iss >> std::noskipws >> i;
std::ios::iostate i3 = iss.rdstate();
VERIFY ( !iss ); }
}
int main()
{
test01();
test02();
test03();
return 0;
}