diff options
author | Eelco Dolstra <edolstra@gmail.com> | 2017-03-21T13·43+0100 |
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committer | Eelco Dolstra <edolstra@gmail.com> | 2017-03-21T13·43+0100 |
commit | f8b84a3b8c5eff26114008ababc333c7d14c92de (patch) | |
tree | 0c411148be6e10df3f5da3edd4a5ee7829628ff6 /src/libutil/util.hh | |
parent | 3229f85585136e5c1d53a2ef2a434fdec75d912e (diff) |
Move istringstream_nocopy to a separate file
Diffstat (limited to 'src/libutil/util.hh')
-rw-r--r-- | src/libutil/util.hh | 88 |
1 files changed, 0 insertions, 88 deletions
diff --git a/src/libutil/util.hh b/src/libutil/util.hh index 645289f67c9a..0e6941e4a8db 100644 --- a/src/libutil/util.hh +++ b/src/libutil/util.hh @@ -451,92 +451,4 @@ struct ReceiveInterrupts { } }; - -template <class CharT, class Traits = std::char_traits<CharT>, class Allocator = std::allocator<CharT>> -class basic_istringbuf_nocopy : public std::basic_streambuf<CharT, Traits> -{ -public: - typedef std::basic_string<CharT, Traits, Allocator> string_type; - - typedef typename std::basic_streambuf<CharT, Traits>::off_type off_type; - - typedef typename std::basic_streambuf<CharT, Traits>::pos_type pos_type; - - typedef typename std::basic_streambuf<CharT, Traits>::int_type int_type; - - typedef typename std::basic_streambuf<CharT, Traits>::traits_type traits_type; - -private: - const string_type & s; - - off_type off; - -public: - basic_istringbuf_nocopy(const string_type & s) : s{s}, off{0} - { - } - -private: - pos_type seekoff(off_type off, std::ios_base::seekdir dir, std::ios_base::openmode which) - { - if (which & std::ios_base::in) { - this->off = dir == std::ios_base::beg - ? off - : (dir == std::ios_base::end - ? s.size() + off - : this->off + off); - } - return pos_type(this->off); - } - - pos_type seekpos(pos_type pos, std::ios_base::openmode which) - { - return seekoff(pos, std::ios_base::beg, which); - } - - std::streamsize showmanyc() - { - return s.size() - off; - } - - int_type underflow() - { - if (typename string_type::size_type(off) == s.size()) - return traits_type::eof(); - return traits_type::to_int_type(s[off]); - } - - int_type uflow() - { - if (typename string_type::size_type(off) == s.size()) - return traits_type::eof(); - return traits_type::to_int_type(s[off++]); - } - - int_type pbackfail(int_type ch) - { - if (off == 0 || (ch != traits_type::eof() && ch != s[off - 1])) - return traits_type::eof(); - - return traits_type::to_int_type(s[--off]); - } - -}; - -template <class CharT, class Traits = std::char_traits<CharT>, class Allocator = std::allocator<CharT>> -class basic_istringstream_nocopy : public std::basic_iostream<CharT, Traits> -{ - typedef basic_istringbuf_nocopy<CharT, Traits, Allocator> buf_type; - buf_type buf; -public: - basic_istringstream_nocopy(const typename buf_type::string_type & s) : - std::basic_iostream<CharT, Traits>(&buf), buf(s) {}; -}; - -/* A variant of std::istringstream that doesn't its string - argument. This is useful for large strings. The caller must ensure - that the string object is not destroyed while it's referenced by - this object. */ -typedef basic_istringstream_nocopy<char> istringstream_nocopy; - } |