Mercurial > octave
view libinterp/corefcn/oct-strstrm.h @ 31606:dfa5d9c3ae72
maint: merge stable to default
author | Rik <rik@octave.org> |
---|---|
date | Thu, 01 Dec 2022 14:28:07 -0800 |
parents | 2aa5bcaba504 e88a07dec498 |
children | 23664317f0d3 |
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//////////////////////////////////////////////////////////////////////// // // Copyright (C) 1996-2022 The Octave Project Developers // // See the file COPYRIGHT.md in the top-level directory of this // distribution or <https://octave.org/copyright/>. // // This file is part of Octave. // // Octave 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 of the License, or // (at your option) any later version. // // Octave 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 Octave; see the file COPYING. If not, see // <https://www.gnu.org/licenses/>. // //////////////////////////////////////////////////////////////////////// #if ! defined (octave_oct_strstrm_h) #define octave_oct_strstrm_h 1 #include "octave-config.h" #include <string> #include <sstream> #include "oct-stream.h" OCTAVE_BEGIN_NAMESPACE(octave) class base_strstream : public base_stream { public: base_strstream (std::ios::openmode m = std::ios::out, mach_info::float_format ff = mach_info::native_float_format (), const std::string& encoding = "utf-8") : base_stream (m, ff, encoding) { } // No copying! base_strstream (const base_strstream&) = delete; base_strstream& operator = (const base_strstream&) = delete; protected: ~base_strstream (void) = default; public: // Position a stream at OFFSET relative to ORIGIN. int seek (off_t, int); // Return current stream position. virtual off_t tell (void); // The name of the file. std::string name (void) const { return ""; } virtual std::streambuf * rdbuf (void) = 0; virtual bool bad (void) const = 0; virtual void clear (void) = 0; }; class istrstream : public base_strstream { public: istrstream (const char *data, std::ios::openmode arg_md = std::ios::out, mach_info::float_format ff = mach_info::native_float_format (), const std::string& encoding = "utf-8") : base_strstream (arg_md, ff, encoding), m_istream (data) { } istrstream (const std::string& data, std::ios::openmode arg_md = std::ios::out, mach_info::float_format ff = mach_info::native_float_format (), const std::string& encoding = "utf-8") : base_strstream (arg_md, ff, encoding), m_istream (data) { } // No copying! istrstream (const istrstream&) = delete; istrstream& operator = (const istrstream&) = delete; protected: ~istrstream (void) = default; public: static stream create (const char *data, std::ios::openmode arg_md = std::ios::out, mach_info::float_format ff = mach_info::native_float_format (), const std::string& encoding = "utf-8"); static stream create (const std::string& data, std::ios::openmode arg_md = std::ios::out, mach_info::float_format ff = mach_info::native_float_format (), const std::string& encoding = "utf-8"); // Return nonzero if EOF has been reached on this stream. bool eof (void) const { return m_istream.eof (); } std::istream * input_stream (void) { return &m_istream; } std::ostream * output_stream (void) { return nullptr; } off_t tell (void) { return m_istream.tellg (); } std::streambuf * rdbuf (void) { return m_istream ? m_istream.rdbuf () : nullptr; } bool bad (void) const { return m_istream.bad (); } void clear (void) { m_istream.clear (); } private: std::istringstream m_istream; }; class ostrstream : public base_strstream { public: ostrstream (std::ios::openmode arg_md = std::ios::out, mach_info::float_format ff = mach_info::native_float_format (), const std::string& encoding = "utf-8") : base_strstream (arg_md, ff, encoding), m_ostream () { } // No copying! ostrstream (const ostrstream&) = delete; ostrstream& operator = (const ostrstream&) = delete; protected: ~ostrstream (void) = default; public: static stream create (std::ios::openmode arg_md = std::ios::out, mach_info::float_format ff = mach_info::native_float_format (), const std::string& encoding = "utf-8"); // Return nonzero if EOF has been reached on this stream. bool eof (void) const { return m_ostream.eof (); } std::istream * input_stream (void) { return nullptr; } std::ostream * output_stream (void) { return &m_ostream; } std::string str (void) { return m_ostream.str (); } std::streambuf * rdbuf (void) { return m_ostream ? m_ostream.rdbuf () : nullptr; } bool bad (void) const { return m_ostream.bad (); } void clear (void) { m_ostream.clear (); } private: std::ostringstream m_ostream; }; OCTAVE_END_NAMESPACE(octave) #endif