1// 981208 bkoz test functionality of basic_stringbuf for char_type == wchar_t 2 3// Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004 4// Free Software Foundation, Inc. 5// 6// This file is part of the GNU ISO C++ Library. This library is free 7// software; you can redistribute it and/or modify it under the 8// terms of the GNU General Public License as published by the 9// Free Software Foundation; either version 2, or (at your option) 10// any later version. 11 12// This library is distributed in the hope that it will be useful, 13// but WITHOUT ANY WARRANTY; without even the implied warranty of 14// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15// GNU General Public License for more details. 16 17// You should have received a copy of the GNU General Public License along 18// with this library; see the file COPYING. If not, write to the Free 19// Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, 20// USA. 21 22#include <sstream> 23#include <testsuite_hooks.h> 24 25std::wstring str_01(L"mykonos. . . or what?"); 26std::wstringbuf strb_01(str_01); 27 28// test overloaded virtual functions 29void test04() 30{ 31 bool test __attribute__((unused)) = true; 32 std::wstring str_tmp; 33 std::streamsize strmsz_1, strmsz_2; 34 typedef std::wstringbuf::int_type int_type; 35 typedef std::wstringbuf::traits_type traits_type; 36 typedef std::wstringbuf::pos_type pos_type; 37 typedef std::wstringbuf::off_type off_type; 38 39 int_type c1 = strb_01.sbumpc(); 40 int_type c2, c3; 41 42 // BUFFER MANAGEMENT & POSITIONING 43 44 // seekoff 45 // pubseekoff(off_type off, ios_base::seekdir way, ios_base::openmode which) 46 // alters the stream position to off 47 pos_type pt_1(off_type(-1)); 48 pos_type pt_2(off_type(0)); 49 off_type off_1 = 0; 50 off_type off_2 = 0; 51 strb_01.str(str_01); //in|out ("mykonos. . . or what?"); 52 53 //IN|OUT 54 //beg 55 pt_1 = strb_01.pubseekoff(2, std::ios_base::beg); 56 off_1 = off_type(pt_1); 57 VERIFY( off_1 >= 0 ); 58 c1 = strb_01.snextc(); //current in pointer +1 59 VERIFY( c1 == L'o' ); 60 c2 = strb_01.sputc(L'x'); //test current out pointer 61 str_tmp = std::wstring(L"myxonos. . . or what?"); 62 VERIFY( strb_01.str() == str_tmp ); 63 //cur 64 pt_1 = strb_01.pubseekoff(2, std::ios_base::cur); 65 off_1 = off_type(pt_1); 66 VERIFY( off_1 == -1 ); // can't seekoff for in and out + cur in sstreams 67 pt_1 = strb_01.pubseekoff(2, std::ios_base::cur, std::ios_base::in); 68 off_1 = off_type(pt_1); 69 pt_2 = strb_01.pubseekoff(2, std::ios_base::cur, std::ios_base::in); 70 off_2 = off_type(pt_2); 71 VERIFY( off_2 == off_1 + 2 ); 72 c1 = strb_01.snextc(); //current in pointer + 1 73 VERIFY( c1 == L' ' ); 74 c2 = strb_01.sputc(L'x'); //test current out pointer 75 str_tmp = std::wstring(L"myxxnos. . . or what?"); 76 VERIFY( strb_01.str() == str_tmp ); 77 //end 78 pt_2 = strb_01.pubseekoff(2, std::ios_base::end); 79 off_1 = off_type(pt_2); 80 VERIFY( off_1 == -1 ); // not a valid position 81 VERIFY( strb_01.str() == str_tmp ); 82 // end part two (from the filebuf tests) 83 strb_01.pubseekoff(0, std::ios_base::end); 84 strmsz_1 = strb_01.in_avail(); // 0 cuz at the end 85 c1 = strb_01.sgetc(); 86 c2 = strb_01.sungetc(); 87 strmsz_2 = strb_01.in_avail(); // 1 88 c3 = strb_01.sgetc(); 89 VERIFY( c1 != c2 ); 90 VERIFY( strmsz_2 != strmsz_1 ); 91 VERIFY( strmsz_2 == 1 ); 92 // end part three 93 strmsz_1 = strb_01.str().size(); 94 strmsz_2 = strb_01.sputn(L" ravi shankar meets carlos santana in LoHa", 90); 95 strb_01.pubseekoff(0, std::ios_base::end); 96 strb_01.sputc(L'<'); 97 str_tmp = strb_01.str(); 98 VERIFY(static_cast<std::streamsize>(str_tmp.size()) == strmsz_1 + strmsz_2 + 1); 99 // IN 100 // OUT 101} 102 103int main() 104{ 105 test04(); 106 return 0; 107} 108 109 110 111// more candy!!! 112