1// Copyright (C) 2004 Free Software Foundation, Inc. 2// 3// This file is part of the GNU ISO C++ Library. This library is free 4// software; you can redistribute it and/or modify it under the 5// terms of the GNU General Public License as published by the 6// Free Software Foundation; either version 2, or (at your option) 7// any later version. 8 9// This library is distributed in the hope that it will be useful, 10// but WITHOUT ANY WARRANTY; without even the implied warranty of 11// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12// GNU General Public License for more details. 13 14// You should have received a copy of the GNU General Public License along 15// with this library; see the file COPYING. If not, write to the Free 16// Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, 17// USA. 18 19// 27.6.1.2.2 arithmetic extractors 20 21#include <istream> 22#include <sstream> 23#include <locale> 24#include <testsuite_hooks.h> 25 26// libstdc++/3720 part two 27void test13() 28{ 29 using namespace std; 30 bool test __attribute__((unused)) = true; 31 const wchar_t* l2 = L"1.2345678901234567890123456789012345678901234567890123456" 32 L" " 33 L"1246.9"; 34 35 // 1 36 // used to core. 37 double d; 38 wistringstream iss1(l2); 39 iss1 >> d; 40 iss1 >> d; 41 VERIFY ( d > 1246 && d < 1247 ); 42 43 // 2 44 // quick test for failbit on maximum length extraction. 45 int i; 46 int max_digits = numeric_limits<int>::digits10 + 1; 47 wstring digits; 48 for (int j = 0; j < max_digits; ++j) 49 digits += L'1'; 50 wistringstream iss2(digits); 51 iss2 >> i; 52 VERIFY( !iss2.fail() ); 53 54 digits += L'1'; 55 i = 0; 56 iss2.str(digits); 57 iss2.clear(); 58 iss2 >> i; 59 VERIFY( i == 0 ); 60 VERIFY( iss2.fail() ); 61} 62 63int main() 64{ 65 test13(); 66 return 0; 67} 68