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