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//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// <istream>
// template <class charT, class traits = char_traits<charT> >
// class basic_istream;
// explicit basic_istream(basic_streambuf<charT,traits>* sb);
#include <istream>
#include <cassert>
template <class CharT>
struct testbuf
: public std::basic_streambuf<CharT>
{
testbuf() {}
};
int main()
{
{
testbuf<char> sb;
std::basic_istream<char> is(&sb);
assert(is.rdbuf() == &sb);
assert(is.tie() == 0);
assert(is.fill() == ' ');
assert(is.rdstate() == is.goodbit);
assert(is.exceptions() == is.goodbit);
assert(is.flags() == (is.skipws | is.dec));
assert(is.precision() == 6);
assert(is.getloc().name() == "C");
assert(is.gcount() == 0);
}
{
testbuf<wchar_t> sb;
std::basic_istream<wchar_t> is(&sb);
assert(is.rdbuf() == &sb);
assert(is.tie() == 0);
assert(is.fill() == L' ');
assert(is.rdstate() == is.goodbit);
assert(is.exceptions() == is.goodbit);
assert(is.flags() == (is.skipws | is.dec));
assert(is.precision() == 6);
assert(is.getloc().name() == "C");
assert(is.gcount() == 0);
}
}
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