diff options
Diffstat (limited to 'test/std/input.output/iostream.format/input.streams/istream.unformatted/get_streambuf_chart.pass.cpp')
-rw-r--r-- | test/std/input.output/iostream.format/input.streams/istream.unformatted/get_streambuf_chart.pass.cpp | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/test/std/input.output/iostream.format/input.streams/istream.unformatted/get_streambuf_chart.pass.cpp b/test/std/input.output/iostream.format/input.streams/istream.unformatted/get_streambuf_chart.pass.cpp new file mode 100644 index 000000000000..cbc007587d5e --- /dev/null +++ b/test/std/input.output/iostream.format/input.streams/istream.unformatted/get_streambuf_chart.pass.cpp @@ -0,0 +1,89 @@ +//===----------------------------------------------------------------------===// +// +// 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> + +// basic_istream<charT,traits>& get(basic_streambuf<char_type,traits>& sb, +// char_type delim); + +#include <istream> +#include <cassert> + +template <class CharT> +class testbuf + : public std::basic_streambuf<CharT> +{ + typedef std::basic_streambuf<CharT> base; + std::basic_string<CharT> str_; +public: + testbuf() + { + } + testbuf(const std::basic_string<CharT>& str) + : str_(str) + { + base::setg(const_cast<CharT*>(str_.data()), + const_cast<CharT*>(str_.data()), + const_cast<CharT*>(str_.data() + str_.size())); + } + + std::basic_string<CharT> str() const + {return std::basic_string<CharT>(base::pbase(), base::pptr());} + +protected: + + virtual typename base::int_type + overflow(typename base::int_type __c = base::traits_type::eof()) + { + if (__c != base::traits_type::eof()) + { + int n = str_.size(); + str_.push_back(__c); + str_.resize(str_.capacity()); + base::setp(const_cast<CharT*>(str_.data()), + const_cast<CharT*>(str_.data() + str_.size())); + base::pbump(n+1); + } + return __c; + } +}; + +int main() +{ + { + testbuf<char> sb("testing*..."); + std::istream is(&sb); + testbuf<char> sb2; + is.get(sb2, '*'); + assert(sb2.str() == "testing"); + assert(is.good()); + assert(is.gcount() == 7); + assert(is.get() == '*'); + is.get(sb2, '*'); + assert(sb2.str() == "testing..."); + assert(is.eof()); + assert(!is.fail()); + assert(is.gcount() == 3); + } + { + testbuf<wchar_t> sb(L"testing*..."); + std::wistream is(&sb); + testbuf<wchar_t> sb2; + is.get(sb2, L'*'); + assert(sb2.str() == L"testing"); + assert(is.good()); + assert(is.gcount() == 7); + assert(is.get() == L'*'); + is.get(sb2, L'*'); + assert(sb2.str() == L"testing..."); + assert(is.eof()); + assert(!is.fail()); + assert(is.gcount() == 3); + } +} |