Mercurial > octave
view libinterp/corefcn/oct-stdstrm.h @ 23457:21baad6b35c4
maint: Use C++11 nullptr rather than 0 or NULL when possible.
* FigureWindow.h, Logger.cc, Menu.cc, MouseModeActionGroup.h, Object.h,
ObjectFactory.cc, ObjectProxy.h, color-picker.h, documentation-dock-widget.h,
files-dock-widget.h, find-files-dialog.h, history-dock-widget.h,
file-editor-tab.cc, file-editor.cc, file-editor.h, find-dialog.h,
main-window.cc, main-window.h, octave-dock-widget.h, parser.cc, parser.h,
webinfo.h, resource-manager.cc, shortcut-manager.cc, shortcut-manager.h,
terminal-dock-widget.h, welcome-wizard.cc, welcome-wizard.h, workspace-model.h,
workspace-view.h, __magick_read__.cc, call-stack.cc, call-stack.h, cdisplay.c,
display.cc, dlmread.cc, dynamic-ld.cc, ft-text-renderer.cc, gl2ps-print.cc,
graphics.cc, graphics.in.h, input.h, interpreter.cc, interpreter.h, ls-hdf5.cc,
mex.cc, mxarray.in.h, oct-errno.in.cc, oct-fstrm.cc, oct-iostrm.h,
oct-procbuf.cc, oct-stdstrm.h, oct-stream.cc, oct-stream.h, octave-link.cc,
pager.cc, pr-output.cc, profiler.h, qz.cc, sighandlers.cc, strfns.cc,
symtab.cc, symtab.h, typecast.cc, urlwrite.cc, variables.cc, __eigs__.cc,
__init_fltk__.cc, __ode15__.cc, colamd.cc, ov-base-int.cc, ov-base.cc,
ov-bool-mat.cc, ov-bool-sparse.cc, ov-builtin.cc, ov-class.cc, ov-classdef.cc,
ov-complex.cc, ov-cx-diag.cc, ov-cx-mat.cc, ov-cx-sparse.cc, ov-fcn-handle.cc,
ov-fcn-inline.cc, ov-flt-complex.cc, ov-flt-cx-diag.cc, ov-flt-cx-mat.cc,
ov-flt-re-diag.cc, ov-flt-re-mat.cc, ov-java.cc, ov-java.h, ov-lazy-idx.cc,
ov-perm.cc, ov-range.cc, ov-re-diag.cc, ov-re-mat.cc, ov-re-sparse.cc,
ov-str-mat.cc, ov-struct.cc, ov-usr-fcn.h, octave.cc, octave.h, bp-table.cc,
jit-ir.cc, jit-ir.h, jit-typeinfo.cc, jit-typeinfo.h, lex.h, pt-arg-list.cc,
pt-arg-list.h, pt-array-list.h, pt-cell.h, pt-classdef.h, pt-colon.cc,
pt-decl.h, pt-eval.cc, pt-eval.h, pt-except.h, pt-idx.h, pt-jit.cc, pt-jit.h,
pt-loop.h, pt-mat.h, pt-select.h, pt.h, CSparse.cc, dSparse.cc, DASPK.cc,
DASRT.cc, DASSL.cc, oct-fftw.cc, oct-rand.cc, oct-spparms.cc, child-list.cc,
file-ops.cc, mach-info.cc, oct-env.cc, oct-time.cc, cmd-edit.cc, cmd-hist.cc,
oct-locbuf.cc, oct-shlib.cc, pathsearch.cc, singleton-cleanup.cc,
unwind-prot.h, url-transfer.cc:
Use C++11 nullptr rather than 0 or NULL when possible.
author | Rik <rik@octave.org> |
---|---|
date | Fri, 28 Apr 2017 13:19:12 -0700 |
parents | cd4e1ee28716 |
children | 980f39c3ab90 |
line wrap: on
line source
/* Copyright (C) 1996-2017 John W. Eaton 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 <http://www.gnu.org/licenses/>. */ #if ! defined (octave_oct_stdstrm_h) #define octave_oct_stdstrm_h 1 #include "octave-config.h" #include "oct-stream.h" #include "c-file-ptr-stream.h" template <typename BUF_T, typename STREAM_T, typename FILE_T> class octave_tstdiostream : public octave::base_stream { public: octave_tstdiostream (const std::string& n, FILE_T f = 0, int fid = 0, std::ios::openmode m = std::ios::in | std::ios::out, octave::mach_info::float_format ff = octave::mach_info::native_float_format (), typename BUF_T::close_fcn cf = BUF_T::file_close) : octave::base_stream (m, ff), nm (n), md (m), s (f ? new STREAM_T (f, cf) : 0), fnum (fid) { } // No copying! octave_tstdiostream (const octave_tstdiostream&) = delete; octave_tstdiostream& operator = (const octave_tstdiostream&) = delete; // Position a stream at OFFSET relative to ORIGIN. int seek (off_t offset, int origin) { return s ? s->seek (offset, origin) : -1; } // Return current stream position. off_t tell (void) { return s ? s->tell () : -1; } // Return nonzero if EOF has been reached on this stream. bool eof (void) const { return s ? s->eof () : true; } // The name of the file. std::string name (void) const { return nm; } std::istream * input_stream (void) { return (md & std::ios::in) ? s : 0; } std::ostream * output_stream (void) { return (md & std::ios::out) ? s : 0; } // FIXME: should not have to cast away const here. BUF_T * rdbuf (void) const { return s ? (const_cast<STREAM_T *> (s))->rdbuf () : 0; } int file_number (void) const { return fnum; } bool bad (void) const { return s ? s->bad () : true; } void clear (void) { if (s) s->clear (); } void do_close (void) { if (s) s->stream_close (); } protected: std::string nm; std::ios::openmode md; STREAM_T *s; // The file number associated with this file. int fnum; ~octave_tstdiostream (void) { delete s; } }; class octave_stdiostream : public octave_tstdiostream<c_file_ptr_buf, io_c_file_ptr_stream, FILE *> { public: octave_stdiostream (const std::string& n, FILE *f = nullptr, std::ios::openmode m = std::ios::in | std::ios::out, octave::mach_info::float_format ff = octave::mach_info::native_float_format (), c_file_ptr_buf::close_fcn cf = c_file_ptr_buf::file_close) : octave_tstdiostream<c_file_ptr_buf, io_c_file_ptr_stream, FILE *> (n, f, f ? fileno (f) : -1, m, ff, cf) { } static octave::stream create (const std::string& n, FILE *f = nullptr, std::ios::openmode m = std::ios::in | std::ios::out, octave::mach_info::float_format ff = octave::mach_info::native_float_format (), c_file_ptr_buf::close_fcn cf = c_file_ptr_buf::file_close) { return octave::stream (new octave_stdiostream (n, f, m, ff, cf)); } // No copying! octave_stdiostream (const octave_stdiostream&) = delete; octave_stdiostream& operator = (const octave_stdiostream&) = delete; protected: ~octave_stdiostream (void) = default; }; #if defined (HAVE_ZLIB) class octave_zstdiostream : public octave_tstdiostream<c_zfile_ptr_buf, io_c_zfile_ptr_stream, gzFile> { public: octave_zstdiostream (const std::string& n, gzFile f = 0, int fid = 0, std::ios::openmode m = std::ios::in | std::ios::out, octave::mach_info::float_format ff = octave::mach_info::native_float_format (), c_zfile_ptr_buf::close_fcn cf = c_zfile_ptr_buf::file_close) : octave_tstdiostream<c_zfile_ptr_buf, io_c_zfile_ptr_stream, gzFile> (n, f, fid, m, ff, cf) { } static octave::stream create (const std::string& n, gzFile f = 0, int fid = 0, std::ios::openmode m = std::ios::in | std::ios::out, octave::mach_info::float_format ff = octave::mach_info::native_float_format (), c_zfile_ptr_buf::close_fcn cf = c_zfile_ptr_buf::file_close) { return octave::stream (new octave_zstdiostream (n, f, fid, m, ff, cf)); } // No copying! octave_zstdiostream (const octave_zstdiostream&) = delete; octave_zstdiostream& operator = (const octave_zstdiostream&) = delete; protected: ~octave_zstdiostream (void) = default; }; #endif #endif