mirror of
git://gcc.gnu.org/git/gcc.git
synced 2024-12-24 07:48:57 +08:00
303 lines
7.7 KiB
C++
303 lines
7.7 KiB
C++
// 2000-06-29 bkoz
|
|
|
|
// Copyright (C) 2000 Free Software Foundation
|
|
//
|
|
// This file is part of the GNU ISO C++ Library. This library is free
|
|
// software; you can redistribute it and/or modify it under the
|
|
// terms of the GNU General Public License as published by the
|
|
// Free Software Foundation; either version 2, or (at your option)
|
|
// any later version.
|
|
|
|
// This library is distributed in the hope that it will be useful,
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
// GNU General Public License for more details.
|
|
|
|
// You should have received a copy of the GNU General Public License along
|
|
// with this library; see the file COPYING. If not, write to the Free
|
|
// Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
|
|
// USA.
|
|
|
|
// 27.6.2.4 basic_ostream seek members
|
|
|
|
#include <ostream>
|
|
#include <sstream>
|
|
#include <fstream>
|
|
#include <debug_assert.h>
|
|
|
|
|
|
bool test01()
|
|
{
|
|
using namespace std;
|
|
typedef ios::pos_type pos_type;
|
|
|
|
bool test = true;
|
|
const char str_lit01[] = "testsuite/ostream_seeks-1.txt";
|
|
|
|
// out
|
|
// test default ctors leave things in the same positions...
|
|
ostringstream ost1;
|
|
pos_type p1 = ost1.tellp();
|
|
|
|
ofstream ofs1;
|
|
pos_type p2 = ofs1.tellp();
|
|
|
|
VERIFY( p1 == p2 );
|
|
|
|
// out
|
|
// test ctors leave things in the same positions...
|
|
ostringstream ost2("bob_marley:kaya");
|
|
p1 = ost2.tellp();
|
|
|
|
ofstream ofs2(str_lit01);
|
|
p2 = ofs2.tellp();
|
|
|
|
VERIFY( p1 == p2 );
|
|
|
|
#ifdef DEBUG_ASSERT
|
|
assert(test);
|
|
#endif
|
|
|
|
return test;
|
|
}
|
|
|
|
#if 0
|
|
// XXX FIX ME
|
|
// basically this is the istreams_seeks.cc code. We need to fix it up
|
|
// for ostreams......
|
|
|
|
// fstreams
|
|
void test04(void)
|
|
{
|
|
bool test = true;
|
|
std::istream::pos_type pos01, pos02, pos03, pos04, pos05, pos06;
|
|
std::ios_base::iostate state01, state02;
|
|
const char str_lit01[] = "testsuite/istream_unformatted-1.txt";
|
|
const char str_lit02[] = "testsuite/istream_unformatted-2.txt";
|
|
std::ifstream if01(str_lit01, std::ios_base::in | std::ios_base::out);
|
|
std::ifstream if02(str_lit01, std::ios_base::in);
|
|
std::ifstream if03(str_lit02, std::ios_base::out | std::ios_base::trunc);
|
|
VERIFY( if01.good() );
|
|
VERIFY( if02.good() );
|
|
VERIFY( if03.good() );
|
|
|
|
std::istream is01(if01.rdbuf());
|
|
std::istream is02(if02.rdbuf());
|
|
std::istream is03(if03.rdbuf());
|
|
|
|
// pos_type tellp()
|
|
// in | out
|
|
pos01 = is01.tellp();
|
|
pos02 = is01.tellp();
|
|
VERIFY( pos01 == pos02 );
|
|
// VERIFY( istream::pos_type(0) != pos01 ); //deprecated
|
|
|
|
// in
|
|
pos03 = is02.tellp();
|
|
pos04 = is02.tellp();
|
|
VERIFY( pos03 == pos04 );
|
|
// VERIFY( istream::pos_type(0) != pos03 ); //deprecated
|
|
|
|
// out
|
|
pos05 = is03.tellp();
|
|
pos06 = is03.tellp();
|
|
VERIFY( pos05 == pos06 );
|
|
// VERIFY( istream::pos_type(0) != pos01 ); //deprecated
|
|
|
|
// istream& seekg(pos_type)
|
|
// istream& seekg(off_type, ios_base::seekdir)
|
|
|
|
// cur
|
|
// NB: see library issues list 136. It's the v-3 interp that seekg
|
|
// only sets the input buffer, or else istreams with buffers that
|
|
// have _M_mode == ios_base::out will fail to have consistency
|
|
// between seekg and tellp.
|
|
state01 = is01.rdstate();
|
|
is01.seekg(10, std::ios_base::cur);
|
|
state02 = is01.rdstate();
|
|
pos01 = is01.tellp();
|
|
VERIFY( pos01 == pos02 + 10 );
|
|
VERIFY( state01 == state02 );
|
|
pos02 = is01.tellp();
|
|
VERIFY( pos02 == pos01 );
|
|
|
|
state01 = is02.rdstate();
|
|
is02.seekg(10, std::ios_base::cur);
|
|
state02 = is02.rdstate();
|
|
pos03 = is02.tellp();
|
|
VERIFY( pos03 == pos04 + 10 );
|
|
VERIFY( state01 == state02 );
|
|
pos04 = is02.tellp();
|
|
VERIFY( pos03 == pos04 );
|
|
|
|
state01 = is03.rdstate();
|
|
is03.seekg(10, std::ios_base::cur);
|
|
state02 = is03.rdstate();
|
|
pos05 = is03.tellp();
|
|
VERIFY( pos05 == pos06 + 10 );
|
|
VERIFY( state01 == state02 );
|
|
pos06 = is03.tellp();
|
|
VERIFY( pos05 == pos06 );
|
|
|
|
// beg
|
|
state01 = is01.rdstate();
|
|
is01.seekg(20, std::ios_base::beg);
|
|
state02 = is01.rdstate();
|
|
pos01 = is01.tellp();
|
|
VERIFY( pos01 == pos02 + 10 );
|
|
VERIFY( state01 == state02 );
|
|
pos02 = is01.tellp();
|
|
VERIFY( pos02 == pos01 );
|
|
|
|
state01 = is02.rdstate();
|
|
is02.seekg(20, std::ios_base::beg);
|
|
state02 = is02.rdstate();
|
|
pos03 = is02.tellp();
|
|
VERIFY( pos03 == pos04 + 10 );
|
|
VERIFY( state01 == state02 );
|
|
pos04 = is02.tellp();
|
|
VERIFY( pos03 == pos04 );
|
|
|
|
state01 = is03.rdstate();
|
|
is03.seekg(20, std::ios_base::beg);
|
|
state02 = is03.rdstate();
|
|
pos05 = is03.tellp();
|
|
VERIFY( pos05 == pos06 + 10 );
|
|
VERIFY( state01 == state02 );
|
|
pos06 = is03.tellp();
|
|
VERIFY( pos05 == pos06 );
|
|
|
|
#ifdef DEBUG_ASSERT
|
|
assert(test);
|
|
#endif
|
|
}
|
|
|
|
// stringstreams
|
|
void test05(void)
|
|
{
|
|
bool test = true;
|
|
std::istream::pos_type pos01, pos02, pos03, pos04, pos05, pos06;
|
|
std::ios_base::iostate state01, state02;
|
|
const char str_lit01[] = "testsuite/istream_unformatted-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;
|
|
// initialize stringbufs that are ios_base::out
|
|
std::stringbuf strbuf03(strbuf01.str(), std::ios_base::out);
|
|
// initialize stringbufs that are ios_base::in
|
|
std::stringbuf strbuf02(strbuf01.str(), std::ios_base::in);
|
|
|
|
std::istream is01(&strbuf01);
|
|
std::istream is02(&strbuf02);
|
|
std::istream is03(&strbuf03);
|
|
|
|
// pos_type tellp()
|
|
// in | out
|
|
pos01 = is01.tellp();
|
|
pos02 = is01.tellp();
|
|
VERIFY( pos01 == pos02 );
|
|
// VERIFY( istream::pos_type(0) != pos01 ); // deprecated
|
|
|
|
// in
|
|
pos03 = is02.tellp();
|
|
pos04 = is02.tellp();
|
|
VERIFY( pos03 == pos04 );
|
|
// VERIFY( istream::pos_type(0) != pos03 ); // deprecated
|
|
|
|
// out
|
|
pos05 = is03.tellp();
|
|
pos06 = is03.tellp();
|
|
VERIFY( pos05 == pos06 );
|
|
// VERIFY( istream::pos_type(0) != pos01 ); //deprecated
|
|
|
|
// istream& seekg(pos_type)
|
|
// istream& seekg(off_type, ios_base::seekdir)
|
|
|
|
// cur
|
|
// NB: see library issues list 136. It's the v-3 interp that seekg
|
|
// only sets the input buffer, or else istreams with buffers that
|
|
// have _M_mode == ios_base::out will fail to have consistency
|
|
// between seekg and tellp.
|
|
state01 = is01.rdstate();
|
|
is01.seekg(10, std::ios_base::cur);
|
|
state02 = is01.rdstate();
|
|
pos01 = is01.tellp();
|
|
VERIFY( pos01 == pos02 + 10 );
|
|
VERIFY( state01 == state02 );
|
|
pos02 = is01.tellp();
|
|
VERIFY( pos02 == pos01 );
|
|
|
|
state01 = is02.rdstate();
|
|
is02.seekg(10, std::ios_base::cur);
|
|
state02 = is02.rdstate();
|
|
pos03 = is02.tellp();
|
|
VERIFY( pos03 == pos04 + 10 );
|
|
VERIFY( state01 == state02 );
|
|
pos04 = is02.tellp();
|
|
VERIFY( pos03 == pos04 );
|
|
|
|
state01 = is03.rdstate();
|
|
is03.seekg(10, std::ios_base::cur);
|
|
state02 = is03.rdstate();
|
|
pos05 = is03.tellp();
|
|
VERIFY( pos05 == pos06 ); // as only out buffer
|
|
VERIFY( state01 == state02 );
|
|
pos06 = is03.tellp();
|
|
VERIFY( pos05 == pos06 );
|
|
|
|
// beg
|
|
state01 = is01.rdstate();
|
|
is01.seekg(20, std::ios_base::beg);
|
|
state02 = is01.rdstate();
|
|
pos01 = is01.tellp();
|
|
VERIFY( pos01 == pos02 + 10 );
|
|
VERIFY( state01 == state02 );
|
|
pos02 = is01.tellp();
|
|
VERIFY( pos02 == pos01 );
|
|
|
|
state01 = is02.rdstate();
|
|
is02.seekg(20, std::ios_base::beg);
|
|
state02 = is02.rdstate();
|
|
pos03 = is02.tellp();
|
|
VERIFY( pos03 == pos04 + 10 );
|
|
VERIFY( state01 == state02 );
|
|
pos04 = is02.tellp();
|
|
VERIFY( pos03 == pos04 );
|
|
|
|
state01 = is03.rdstate();
|
|
is03.seekg(20, std::ios_base::beg);
|
|
state02 = is03.rdstate();
|
|
pos05 = is03.tellp();
|
|
VERIFY( pos05 == pos06 ); // as only out buffer
|
|
VERIFY( state01 == state02 );
|
|
pos06 = is03.tellp();
|
|
VERIFY( pos05 == pos06 );
|
|
|
|
#ifdef DEBUG_ASSERT
|
|
assert(test);
|
|
#endif
|
|
}
|
|
#endif // XXX
|
|
|
|
int main()
|
|
{
|
|
test01();
|
|
// test04();
|
|
// test05();
|
|
return 0;
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|