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// 1999-06-03 bkoz
// Copyright (C) 1999-2016 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/>.
// 21.1.1 Characher traits requirements
#include <string>
#include <testsuite_hooks.h>
void test02(void)
{
bool test __attribute__((unused)) = true;
const std::wstring str_01(L"zuma beach");
const std::wstring str_02(L"montara and ocean beach");
// 21.1.1 character traits requirements
// Key for decoding what function signatures really mean:
// X == char_traits<_CharT>
// [c,d] == _CharT
// [p,q] == const _CharT*
// s == _CharT*
// [n,i,j] == size_t
// f == X::int_type
// pos == X::pos_type
// state == X::state_type
// void X::assign(wchar_t c, wchar_t d)
// assigns c = d;
wchar_t c1 = L'z';
wchar_t c2 = L'u';
VERIFY( c1 != c2 );
std::char_traits<wchar_t>::assign(c1,c2);
VERIFY( c1 == L'u' );
// char* X::move(char* s, const char* p, size_t n)
// for each i in [0,n) performs X::assign(s[i], p[i]). Copies
// correctly even where p is in [s, s + n), and yields s.
wchar_t array1[] = {L'z', L'u', L'm', L'a', L' ', L'b', L'e', L'a', L'c', L'h', 0};
const wchar_t str_lit1[] = L"montara and ocean beach";
const wchar_t str_lit2[] = L"boracay, philippines";
const int len1 = sizeof(str_lit1)/sizeof(wchar_t);
const int len2 = sizeof(str_lit2)/sizeof(wchar_t);
wchar_t array2[len1 + len2 - 1]; // two terminating chars
std::char_traits<wchar_t>::copy(array2, str_lit2, len2);
VERIFY( str_lit1[0] == 'm' );
c1 = array2[0];
c2 = str_lit1[0];
wchar_t c3 = array2[1];
wchar_t c4 = str_lit1[1];
std::char_traits<wchar_t>::move(array2, str_lit1, 0);
VERIFY( array2[0] == c1 );
VERIFY( str_lit1[0] == c2 );
std::char_traits<wchar_t>::move(array2, str_lit1, 1);
VERIFY( array2[0] == c2 );
VERIFY( str_lit1[0] == c2 );
VERIFY( array2[1] == c3 );
VERIFY( str_lit1[1] == c4 );
std::char_traits<wchar_t>::move(array2, str_lit1, 2);
VERIFY( array2[0] == c2 );
VERIFY( str_lit1[0] == c2 );
VERIFY( array2[1] == c4 );
VERIFY( str_lit1[1] == c4 );
wchar_t* pc1 = array1 + 1;
c1 = pc1[0];
c2 = array1[0];
VERIFY( c1 != c2 );
wchar_t* pc2 = std::char_traits<wchar_t>::move(array1, pc1, 0);
c3 = pc1[0];
c4 = array1[0];
VERIFY( c1 == c3 );
VERIFY( c2 == c4 );
VERIFY( pc2 == array1 );
c1 = pc1[0];
c2 = array1[0];
wchar_t* pc3 = pc1;
pc2 = std::char_traits<wchar_t>::move(array1, pc1, 10);
c3 = pc1[0];
c4 = array1[0];
VERIFY( c1 != c3 ); // underlying wchar_t array changed.
VERIFY( c4 != c3 );
VERIFY( pc2 == array1 );
VERIFY( pc3 == pc1 ); // but pointers o-tay
c1 = *(str_01.data());
c2 = array1[0];
VERIFY( c1 != c2 );
}
int main()
{
test02();
return 0;
}
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