// 2000-08-17 Benjamin Kosnik // Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2009 // 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 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 // . // 22.2.1.5 - Template class codecvt [lib.locale.codecvt] #include #include #include // Required instantiation, degenerate conversion. // codecvt void test01() { using namespace std; typedef codecvt_base::result result; typedef codecvt c_codecvt; bool test __attribute__((unused)) = true; const char* c_lit = "black pearl jasmine tea"; const char* from_next; int size = std::strlen(c_lit); char* c_arr = new char[size]; char* c_ref = new char[size]; char* to_next; locale loc = locale::classic(); c_codecvt::state_type state; const c_codecvt* cvt = &use_facet(loc); // According to the resolution of DR19 (see also libstd++/9168), in // case of degenerate conversion ('noconv'), "there are no changes to // the values in [to, to_limit)." memset(c_ref, 'X', size); // in memset(c_arr, 'X', size); result r1 = cvt->in(state, c_lit, c_lit + size, from_next, c_arr, c_arr + size, to_next); VERIFY( r1 == codecvt_base::noconv ); VERIFY( !memcmp(c_arr, c_ref, size) ); VERIFY( from_next == c_lit ); VERIFY( to_next == c_arr ); // out memset(c_arr, 'X', size); result r2 = cvt->out(state, c_lit, c_lit + size, from_next, c_arr, c_arr + size, to_next); VERIFY( r2 == codecvt_base::noconv ); VERIFY( !memcmp(c_arr, c_ref, size) ); VERIFY( from_next == c_lit ); VERIFY( to_next == c_arr ); // unshift memcpy(c_arr, c_lit, size); result r3 = cvt->unshift(state, c_arr, c_arr + size, to_next); VERIFY( r3 == codecvt_base::noconv ); VERIFY( !memcmp(c_arr, c_lit, size) ); VERIFY( to_next == c_arr ); delete [] c_arr; delete [] c_ref; } int main () { test01(); return 0; }