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[/] [openrisc/] [trunk/] [gnu-src/] [gcc-4.5.1/] [libstdc++-v3/] [testsuite/] [27_io/] [basic_ostream/] [inserters_other/] [char/] [4.cc] - Rev 424
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// 1999-08-16 bkoz // 1999-11-01 bkoz // Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, // 2008, 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 // <http://www.gnu.org/licenses/>. // 27.6.2.5.4 basic_ostream character inserters #include <ostream> #include <sstream> #include <cstdio> #include <testsuite_hooks.h> class test_buffer_1 : public std::streambuf { public: test_buffer_1(const std::string& s) : str(s), it(str.begin()) { } protected: virtual int underflow() { return (it != str.end() ? *it : EOF); } virtual int uflow() { return (it != str.end() ? *it++ : EOF); } private: const std::string str; std::string::const_iterator it; }; class test_buffer_2 : public std::streambuf { public: test_buffer_2(const std::string& s) : str(s), it(str.begin()) { } protected: virtual int underflow() { return (it != str.end() ? *it : EOF); } virtual int uflow() { return (it != str.end() ? *it++ : EOF); } virtual std::streamsize showmanyc() { return std::distance(it, str.end()); } private: const std::string str; std::string::const_iterator it; }; class test_buffer_3 : public std::streambuf { public: test_buffer_3(const std::string& s) : str(s), it(str.begin()) { } protected: virtual int underflow() { return (it != str.end() ? *it : EOF); } virtual int uflow() { return (it != str.end() ? *it++ : EOF); } virtual std::streamsize showmanyc() { std::streamsize ret = std::distance(it, str.end()); return ret > 0 ? ret : -1; } private: const std::string str; std::string::const_iterator it; }; class test_buffer_4 : public std::streambuf { public: test_buffer_4(const std::string& s) : str(s), it(str.begin()) { if (it != str.end()) { buf[0] = *it++; setg(buf, buf, buf+1); } } protected: virtual int underflow() { return (it != str.end() ? *it : EOF); } virtual int uflow() { return (it != str.end() ? *it++ : EOF); } virtual std::streamsize showmanyc() { std::streamsize ret = std::distance(it, str.end()); return ret > 0 ? ret : -1; } private: const std::string str; std::string::const_iterator it; char buf[1]; }; void test(const std::string& str, std::streambuf& buf) { bool test __attribute__((unused)) = true; std::ostringstream out; std::istream in(&buf); out << in.rdbuf(); if (out.str() != str) VERIFY( false ); } // libstdc++/6745 // libstdc++/8071 // libstdc++/8127 // Jonathan Lennox <lennox@cs.columbia.edu> void test05() { std::string string_a("Hello, world!"); std::string string_b(""); test_buffer_1 buf1a(string_a); test_buffer_1 buf1b(string_b); test_buffer_2 buf2a(string_a); test_buffer_2 buf2b(string_b); test_buffer_3 buf3a(string_a); test_buffer_3 buf3b(string_b); test_buffer_4 buf4a(string_a); test_buffer_4 buf4b(string_b); test(string_a, buf1a); test(string_b, buf1b); test(string_a, buf2a); test(string_b, buf2b); test(string_a, buf3a); test(string_b, buf3b); test(string_a, buf4a); test(string_b, buf4b); } int main() { test05(); return 0; }