Mercurial > octave
view libinterp/corefcn/oct-stdstrm.h @ 31225:3eab70385569
sparse-xpow.cc: Use faster multiplication technique, this time for complex
author | Arun Giridhar <arungiridhar@gmail.com> |
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date | Sun, 11 Sep 2022 13:53:38 -0400 |
parents | 796f54d4ddbf |
children | 2aa5bcaba504 e88a07dec498 |
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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_stdstrm_h) #define octave_oct_stdstrm_h 1 #include "octave-config.h" #include <iomanip> #include "oct-stream.h" #include "c-file-ptr-stream.h" OCTAVE_NAMESPACE_BEGIN template <typename BUF_T, typename STREAM_T, typename FILE_T> class tstdiostream : public base_stream { public: tstdiostream (const std::string& n, FILE_T f = 0, int fid = 0, std::ios::openmode m = std::ios::in | std::ios::out, mach_info::float_format ff = mach_info::native_float_format (), const std::string& encoding = "utf-8", typename BUF_T::close_fcn cf = BUF_T::file_close) : base_stream (m, ff, encoding), m_name (n), m_mode (m), m_stream (f ? new STREAM_T (f, cf) : nullptr), m_fnum (fid) { } // No copying! tstdiostream (const tstdiostream&) = delete; tstdiostream& operator = (const tstdiostream&) = delete; // Position a stream at OFFSET relative to ORIGIN. int seek (off_t offset, int origin) { return m_stream ? m_stream->seek (offset, origin) : -1; } // Return current stream position. off_t tell (void) { return m_stream ? m_stream->tell () : -1; } // Return nonzero if EOF has been reached on this stream. bool eof (void) const { return m_stream ? m_stream->eof () : true; } // The name of the file. std::string name (void) const { return m_name; } std::istream * input_stream (void) { return (m_mode & std::ios::in) ? m_stream : nullptr; } std::ostream * output_stream (void) { return (m_mode & std::ios::out) ? m_stream : nullptr; } // FIXME: should not have to cast away const here. BUF_T * rdbuf (void) const { return m_stream ? (const_cast<STREAM_T *> (m_stream))->rdbuf () : nullptr; } int file_number (void) const { return m_fnum; } bool bad (void) const { return m_stream ? m_stream->bad () : true; } void clear (void) { if (m_stream) m_stream->clear (); } void do_close (void) { if (m_stream) m_stream->stream_close (); } protected: ~tstdiostream (void) { delete m_stream; } //-------- std::string m_name; std::ios::openmode m_mode; STREAM_T *m_stream; // The file number associated with this file. int m_fnum; }; class stdiostream : public tstdiostream<c_file_ptr_buf, io_c_file_ptr_stream, FILE *> { public: stdiostream (const std::string& n, FILE *f = nullptr, std::ios::openmode m = std::ios::in | std::ios::out, mach_info::float_format ff = mach_info::native_float_format (), const std::string& encoding = "utf-8", c_file_ptr_buf::close_fcn cf = c_file_ptr_buf::file_close) : tstdiostream<c_file_ptr_buf, io_c_file_ptr_stream, FILE *> (n, f, f ? fileno (f) : -1, m, ff, encoding, cf) { } static stream create (const std::string& n, FILE *f = nullptr, std::ios::openmode m = std::ios::in | std::ios::out, mach_info::float_format ff = mach_info::native_float_format (), const std::string& encoding = "utf-8", c_file_ptr_buf::close_fcn cf = c_file_ptr_buf::file_close) { return stream (new stdiostream (n, f, m, ff, encoding, cf)); } // No copying! stdiostream (const stdiostream&) = delete; stdiostream& operator = (const stdiostream&) = delete; protected: ~stdiostream (void) = default; }; #if defined (HAVE_ZLIB) class zstdiostream : public tstdiostream<c_zfile_ptr_buf, io_c_zfile_ptr_stream, gzFile> { public: zstdiostream (const std::string& n, gzFile f = nullptr, int fid = 0, std::ios::openmode m = std::ios::in | std::ios::out, mach_info::float_format ff = mach_info::native_float_format (), const std::string& encoding = "utf-8", c_zfile_ptr_buf::close_fcn cf = c_zfile_ptr_buf::file_close) : tstdiostream<c_zfile_ptr_buf, io_c_zfile_ptr_stream, gzFile> (n, f, fid, m, ff, encoding, cf) { } static stream create (const std::string& n, gzFile f = nullptr, int fid = 0, std::ios::openmode m = std::ios::in | std::ios::out, mach_info::float_format ff = mach_info::native_float_format (), const std::string& encoding = "utf-8", c_zfile_ptr_buf::close_fcn cf = c_zfile_ptr_buf::file_close) { return stream (new zstdiostream (n, f, fid, m, ff, encoding, cf)); } // No copying! zstdiostream (const zstdiostream&) = delete; zstdiostream& operator = (const zstdiostream&) = delete; protected: ~zstdiostream (void) = default; }; #endif OCTAVE_NAMESPACE_END #if defined (OCTAVE_PROVIDE_DEPRECATED_SYMBOLS) OCTAVE_DEPRECATED (7, "use 'octave::stdiostream' instead") typedef octave::stdiostream octave_stdiostream; OCTAVE_DEPRECATED (7, "use 'octave::zstdiostream' instead") typedef octave::zstdiostream octave_zstdiostream; #endif #endif