#include <istream>
#include <sstream>
#include <fstream>
#include <testsuite_hooks.h>
void test05(void)
{
typedef std::istream::off_type off_type;
bool test __attribute__((unused)) = true;
std::istream::pos_type pos01, pos02, pos03, pos04, pos05, pos06;
std::ios_base::iostate state01, state02;
const char str_lit01[] = "istream_seeks-1.tst";
std::ifstream if01(str_lit01);
std::ifstream if02(str_lit01);
std::ifstream if03(str_lit01);
VERIFY( if01.good() );
VERIFY( if02.good() );
VERIFY( if03.good() );
std::stringbuf strbuf01(std::ios_base::in | std::ios_base::out);
if01 >> &strbuf01;
std::stringbuf strbuf03(strbuf01.str(), std::ios_base::out);
std::stringbuf strbuf02(strbuf01.str(), std::ios_base::in);
std::istream is01(&strbuf01);
std::istream is02(&strbuf02);
std::istream is03(&strbuf03);
pos01 = is01.tellg();
pos02 = is01.tellg();
pos03 = is02.tellg();
pos04 = is02.tellg();
pos05 = is03.tellg();
pos06 = is03.tellg();
state01 = is01.rdstate();
is01.seekg(10, std::ios_base::cur);
state02 = is01.rdstate();
pos01 = is01.tellg();
VERIFY( pos01 == pos02 + off_type(10) );
VERIFY( state01 == state02 );
pos02 = is01.tellg();
VERIFY( pos02 == pos01 );
state01 = is02.rdstate();
is02.seekg(10, std::ios_base::cur);
state02 = is02.rdstate();
pos03 = is02.tellg();
VERIFY( pos03 == pos04 + off_type(10) );
VERIFY( state01 == state02 );
pos04 = is02.tellg();
VERIFY( pos03 == pos04 );
state01 = is03.rdstate();
is03.seekg(10, std::ios_base::cur);
state02 = is03.rdstate();
pos05 = is03.tellg();
VERIFY( pos05 == pos06 ); VERIFY( state01 != state02 );
pos06 = is03.tellg();
VERIFY( pos05 == pos06 );
state01 = is01.rdstate();
is01.seekg(20, std::ios_base::beg);
state02 = is01.rdstate();
pos01 = is01.tellg();
VERIFY( pos01 == pos02 + off_type(10) );
VERIFY( state01 == state02 );
pos02 = is01.tellg();
VERIFY( pos02 == pos01 );
state01 = is02.rdstate();
is02.seekg(20, std::ios_base::beg);
state02 = is02.rdstate();
pos03 = is02.tellg();
VERIFY( pos03 == pos04 + off_type(10) );
VERIFY( state01 == state02 );
pos04 = is02.tellg();
VERIFY( pos03 == pos04 );
state01 = is03.rdstate();
is03.seekg(20, std::ios_base::beg);
state02 = is03.rdstate();
pos05 = is03.tellg();
VERIFY( pos05 == pos06 ); VERIFY( state01 == state02 );
pos06 = is03.tellg();
VERIFY( pos05 == pos06 );
}
int main()
{
test05();
return 0;
}