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// 981208 bkoz test functionality of basic_stringbuf for char_type == wchar_t
// Copyright (C) 1997-2024 Free Software Foundation, Inc.
//
// 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 3, 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 COPYING3. If not see
// <http://www.gnu.org/licenses/>.
#include <sstream>
#include <testsuite_hooks.h>
std::wstring str_01(L"mykonos. . . or what?");
std::wstringbuf strb_01(str_01);
// test overloaded virtual functions
void test04()
{
std::wstring str_tmp;
std::streamsize strmsz_1, strmsz_2;
typedef std::wstringbuf::int_type int_type;
typedef std::wstringbuf::traits_type traits_type;
typedef std::wstringbuf::pos_type pos_type;
typedef std::wstringbuf::off_type off_type;
int_type c1 = strb_01.sbumpc();
int_type c2;
// BUFFER MANAGEMENT & POSITIONING
// seekoff
// pubseekoff(off_type off, ios_base::seekdir way, ios_base::openmode which)
// alters the stream position to off
pos_type pt_1(off_type(-1));
pos_type pt_2(off_type(0));
off_type off_1 = 0;
off_type off_2 = 0;
strb_01.str(str_01); //in|out ("mykonos. . . or what?");
//IN|OUT
//beg
pt_1 = strb_01.pubseekoff(2, std::ios_base::beg);
off_1 = off_type(pt_1);
VERIFY( off_1 >= 0 );
c1 = strb_01.snextc(); //current in pointer +1
VERIFY( c1 == L'o' );
c2 = strb_01.sputc(L'x'); //test current out pointer
str_tmp = std::wstring(L"myxonos. . . or what?");
VERIFY( strb_01.str() == str_tmp );
//cur
pt_1 = strb_01.pubseekoff(2, std::ios_base::cur);
off_1 = off_type(pt_1);
VERIFY( off_1 == -1 ); // can't seekoff for in and out + cur in sstreams
pt_1 = strb_01.pubseekoff(2, std::ios_base::cur, std::ios_base::in);
off_1 = off_type(pt_1);
pt_2 = strb_01.pubseekoff(2, std::ios_base::cur, std::ios_base::in);
off_2 = off_type(pt_2);
VERIFY( off_2 == off_1 + 2 );
c1 = strb_01.snextc(); //current in pointer + 1
VERIFY( c1 == L' ' );
c2 = strb_01.sputc(L'x'); //test current out pointer
str_tmp = std::wstring(L"myxxnos. . . or what?");
VERIFY( strb_01.str() == str_tmp );
//end
pt_2 = strb_01.pubseekoff(2, std::ios_base::end);
off_1 = off_type(pt_2);
VERIFY( off_1 == -1 ); // not a valid position
VERIFY( strb_01.str() == str_tmp );
// end part two (from the filebuf tests)
strb_01.pubseekoff(0, std::ios_base::end);
strmsz_1 = strb_01.in_avail(); // 0 cuz at the end
c1 = strb_01.sgetc();
c2 = strb_01.sungetc();
strmsz_2 = strb_01.in_avail(); // 1
strb_01.sgetc();
VERIFY( c1 != c2 );
VERIFY( strmsz_2 != strmsz_1 );
VERIFY( strmsz_2 == 1 );
// end part three
str_tmp = L" ravi shankar meets carlos santana in LoHa ";
str_tmp += str_tmp;
strmsz_1 = strb_01.str().size();
strmsz_2 = strb_01.sputn(str_tmp.c_str(), str_tmp.size());
strb_01.pubseekoff(0, std::ios_base::end);
strb_01.sputc(L'<');
str_tmp = strb_01.str();
VERIFY(static_cast<std::streamsize>(str_tmp.size()) == strmsz_1 + strmsz_2 + 1);
// IN
// OUT
}
int main()
{
test04();
return 0;
}
// more candy!!!
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