1// 2000-08-17 Benjamin Kosnik <bkoz@cygnus.com> 2 3// Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008 4// 2009, 2010 5// Free Software Foundation 6// 7// This file is part of the GNU ISO C++ Library. This library is free 8// software; you can redistribute it and/or modify it under the 9// terms of the GNU General Public License as published by the 10// Free Software Foundation; either version 3, or (at your option) 11// any later version. 12 13// This library is distributed in the hope that it will be useful, 14// but WITHOUT ANY WARRANTY; without even the implied warranty of 15// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16// GNU General Public License for more details. 17 18// You should have received a copy of the GNU General Public License along 19// with this library; see the file COPYING3. If not see 20// <http://www.gnu.org/licenses/>. 21 22// 22.2.1.5 - Template class codecvt [lib.locale.codecvt] 23 24#include <locale> 25#include <cstring> 26#include <testsuite_hooks.h> 27 28// Required instantiation, degenerate conversion. 29// codecvt<char, char, mbstate_t> 30void test01() 31{ 32 using namespace std; 33 typedef codecvt_base::result result; 34 typedef codecvt<char, char, mbstate_t> c_codecvt; 35 36 bool test __attribute__((unused)) = true; 37 const char* c_lit = "black pearl jasmine tea"; 38 const char* from_next; 39 int size = strlen(c_lit); 40 char* c_arr = new char[size]; 41 char* c_ref = new char[size]; 42 char* to_next; 43 44 locale loc = locale::classic(); 45 c_codecvt::state_type state; 46 const c_codecvt* cvt = &use_facet<c_codecvt>(loc); 47 48 // According to the resolution of DR19 (see also libstd++/9168), in 49 // case of degenerate conversion ('noconv'), "there are no changes to 50 // the values in [to, to_limit)." 51 memset(c_ref, 'X', size); 52 53 // in 54 memset(c_arr, 'X', size); 55 result r1 = cvt->in(state, c_lit, c_lit + size, from_next, 56 c_arr, c_arr + size, to_next); 57 VERIFY( r1 == codecvt_base::noconv ); 58 VERIFY( !memcmp(c_arr, c_ref, size) ); 59 VERIFY( from_next == c_lit ); 60 VERIFY( to_next == c_arr ); 61 62 // out 63 memset(c_arr, 'X', size); 64 result r2 = cvt->out(state, c_lit, c_lit + size, from_next, 65 c_arr, c_arr + size, to_next); 66 VERIFY( r2 == codecvt_base::noconv ); 67 VERIFY( !memcmp(c_arr, c_ref, size) ); 68 VERIFY( from_next == c_lit ); 69 VERIFY( to_next == c_arr ); 70 71 // unshift 72 memcpy(c_arr, c_lit, size); 73 result r3 = cvt->unshift(state, c_arr, c_arr + size, to_next); 74 VERIFY( r3 == codecvt_base::noconv ); 75 VERIFY( !memcmp(c_arr, c_lit, size) ); 76 VERIFY( to_next == c_arr ); 77 78 delete [] c_arr; 79 delete [] c_ref; 80} 81 82int main () 83{ 84 test01(); 85 return 0; 86} 87