1// 1999-06-03 bkoz 2 3// Copyright (C) 1999, 2000, 2001, 2003, 2004, 2005, 2009 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 3, 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 COPYING3. If not see 19// <http://www.gnu.org/licenses/>. 20 21// 21.1.1 Characher traits requirements 22 23#include <string> 24#include <testsuite_hooks.h> 25 26void test02(void) 27{ 28 bool test __attribute__((unused)) = true; 29 const std::wstring str_01(L"zuma beach"); 30 const std::wstring str_02(L"montara and ocean beach"); 31 32 // 21.1.1 character traits requirements 33 34 // Key for decoding what function signatures really mean: 35 // X == char_traits<_CharT> 36 // [c,d] == _CharT 37 // [p,q] == const _CharT* 38 // s == _CharT* 39 // [n,i,j] == size_t 40 // f == X::int_type 41 // pos == X::pos_type 42 // state == X::state_type 43 44 // void X::assign(wchar_t c, wchar_t d) 45 // assigns c = d; 46 wchar_t c1 = L'z'; 47 wchar_t c2 = L'u'; 48 VERIFY( c1 != c2 ); 49 std::char_traits<wchar_t>::assign(c1,c2); 50 VERIFY( c1 == L'u' ); 51 52 // char* X::move(char* s, const char* p, size_t n) 53 // for each i in [0,n) performs X::assign(s[i], p[i]). Copies 54 // correctly even where p is in [s, s + n), and yields s. 55 wchar_t array1[] = {L'z', L'u', L'm', L'a', L' ', L'b', L'e', L'a', L'c', L'h', 0}; 56 const wchar_t str_lit1[] = L"montara and ocean beach"; 57 const wchar_t str_lit2[] = L"boracay, philippines"; 58 const int len1 = sizeof(str_lit1)/sizeof(wchar_t); 59 const int len2 = sizeof(str_lit2)/sizeof(wchar_t); 60 wchar_t array2[len1 + len2 - 1]; // two terminating chars 61 std::char_traits<wchar_t>::copy(array2, str_lit2, len2); 62 63 VERIFY( str_lit1[0] == 'm' ); 64 c1 = array2[0]; 65 c2 = str_lit1[0]; 66 wchar_t c3 = array2[1]; 67 wchar_t c4 = str_lit1[1]; 68 std::char_traits<wchar_t>::move(array2, str_lit1, 0); 69 VERIFY( array2[0] == c1 ); 70 VERIFY( str_lit1[0] == c2 ); 71 std::char_traits<wchar_t>::move(array2, str_lit1, 1); 72 VERIFY( array2[0] == c2 ); 73 VERIFY( str_lit1[0] == c2 ); 74 VERIFY( array2[1] == c3 ); 75 VERIFY( str_lit1[1] == c4 ); 76 std::char_traits<wchar_t>::move(array2, str_lit1, 2); 77 VERIFY( array2[0] == c2 ); 78 VERIFY( str_lit1[0] == c2 ); 79 VERIFY( array2[1] == c4 ); 80 VERIFY( str_lit1[1] == c4 ); 81 82 wchar_t* pc1 = array1 + 1; 83 c1 = pc1[0]; 84 c2 = array1[0]; 85 VERIFY( c1 != c2 ); 86 wchar_t* pc2 = std::char_traits<wchar_t>::move(array1, pc1, 0); 87 c3 = pc1[0]; 88 c4 = array1[0]; 89 VERIFY( c1 == c3 ); 90 VERIFY( c2 == c4 ); 91 VERIFY( pc2 == array1 ); 92 93 c1 = pc1[0]; 94 c2 = array1[0]; 95 wchar_t* pc3 = pc1; 96 pc2 = std::char_traits<wchar_t>::move(array1, pc1, 10); 97 c3 = pc1[0]; 98 c4 = array1[0]; 99 VERIFY( c1 != c3 ); // underlying wchar_t array changed. 100 VERIFY( c4 != c3 ); 101 VERIFY( pc2 == array1 ); 102 VERIFY( pc3 == pc1 ); // but pointers o-tay 103 c1 = *(str_01.data()); 104 c2 = array1[0]; 105 VERIFY( c1 != c2 ); 106} 107 108int main() 109{ 110 test02(); 111 return 0; 112} 113