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// 1999-08-16 bkoz
// 1999-11-01 bkoz
// Copyright (C) 1999-2015 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/>.
// 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;
}
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