Mercurial > octave
view libinterp/corefcn/c-file-ptr-stream.h @ 25438:cb1606f78f6b
prefer <istream>, <ostream>, or <iosfwd> to <iostream> where possible
Using <iostream> brings with it a static initializer for the std::cin,
std::cout, and std::cerr streams. In most cases they are not needed
and should be avoided if possible.
Files affected:
build-aux/mk-opts.pl
libgui/qterminal/libqterminal/win32/QWinTerminalImpl.cpp
libinterp/corefcn/__dsearchn__.cc
libinterp/corefcn/c-file-ptr-stream.cc
libinterp/corefcn/c-file-ptr-stream.h
libinterp/corefcn/daspk.cc
libinterp/corefcn/dasrt.cc
libinterp/corefcn/dassl.cc
libinterp/corefcn/defaults.cc
libinterp/corefcn/defun.cc
libinterp/corefcn/file-io.cc
libinterp/corefcn/ft-text-renderer.cc
libinterp/corefcn/gl-render.cc
libinterp/corefcn/help.cc
libinterp/corefcn/ls-ascii-helper.cc
libinterp/corefcn/ls-hdf5.cc
libinterp/corefcn/ls-hdf5.h
libinterp/corefcn/ls-mat-ascii.cc
libinterp/corefcn/ls-mat4.cc
libinterp/corefcn/ls-mat5.cc
libinterp/corefcn/ls-oct-binary.cc
libinterp/corefcn/ls-oct-text.cc
libinterp/corefcn/lsode.cc
libinterp/corefcn/oct-iostrm.cc
libinterp/corefcn/oct-procbuf.cc
libinterp/corefcn/oct-stdstrm.h
libinterp/corefcn/procstream.cc
libinterp/corefcn/procstream.h
libinterp/corefcn/quad.cc
libinterp/corefcn/symscope.h
libinterp/corefcn/symtab.h
libinterp/corefcn/toplev.cc
libinterp/corefcn/urlwrite.cc
libinterp/corefcn/utils.cc
libinterp/corefcn/zfstream.cc
libinterp/dldfcn/__ode15__.cc
libinterp/dldfcn/convhulln.cc
libinterp/octave-value/ov-base-diag.cc
libinterp/octave-value/ov-base-int.cc
libinterp/octave-value/ov-base-mat.cc
libinterp/octave-value/ov-base-scalar.cc
libinterp/octave-value/ov-base-sparse.cc
libinterp/octave-value/ov-base.cc
libinterp/octave-value/ov-bool-mat.cc
libinterp/octave-value/ov-bool-sparse.cc
libinterp/octave-value/ov-bool.cc
libinterp/octave-value/ov-cell.cc
libinterp/octave-value/ov-ch-mat.cc
libinterp/octave-value/ov-class.cc
libinterp/octave-value/ov-colon.cc
libinterp/octave-value/ov-complex.cc
libinterp/octave-value/ov-cs-list.cc
libinterp/octave-value/ov-cx-mat.cc
libinterp/octave-value/ov-cx-sparse.cc
libinterp/octave-value/ov-fcn-handle.cc
libinterp/octave-value/ov-fcn-inline.cc
libinterp/octave-value/ov-float.cc
libinterp/octave-value/ov-flt-complex.cc
libinterp/octave-value/ov-flt-cx-mat.cc
libinterp/octave-value/ov-flt-re-mat.cc
libinterp/octave-value/ov-int16.cc
libinterp/octave-value/ov-int32.cc
libinterp/octave-value/ov-int64.cc
libinterp/octave-value/ov-int8.cc
libinterp/octave-value/ov-java.cc
libinterp/octave-value/ov-range.cc
libinterp/octave-value/ov-re-mat.cc
libinterp/octave-value/ov-re-sparse.cc
libinterp/octave-value/ov-scalar.cc
libinterp/octave-value/ov-str-mat.cc
libinterp/octave-value/ov-struct.cc
libinterp/octave-value/ov-typeinfo.cc
libinterp/octave-value/ov-uint16.cc
libinterp/octave-value/ov-uint32.cc
libinterp/octave-value/ov-uint64.cc
libinterp/octave-value/ov-uint8.cc
libinterp/octave.cc
libinterp/parse-tree/bp-table.cc
libinterp/parse-tree/lex.h
libinterp/parse-tree/profiler.cc
libinterp/parse-tree/pt-arg-list.cc
libinterp/parse-tree/pt-array-list.cc
libinterp/parse-tree/pt-assign.cc
libinterp/parse-tree/pt-cell.cc
libinterp/parse-tree/pt-const.cc
libinterp/parse-tree/pt-eval.cc
libinterp/parse-tree/pt-exp.cc
libinterp/parse-tree/pt-fcn-handle.cc
libinterp/parse-tree/pt-jit.cc
libinterp/parse-tree/pt-pr-code.cc
libinterp/parse-tree/pt-tm-const.cc
libinterp/parse-tree/pt.cc
liboctave/array/Array.cc
liboctave/array/CColVector.cc
liboctave/array/CDiagMatrix.cc
liboctave/array/CMatrix.cc
liboctave/array/CNDArray.cc
liboctave/array/CRowVector.cc
liboctave/array/CSparse.cc
liboctave/array/DiagArray2.cc
liboctave/array/MArray.cc
liboctave/array/Range.cc
liboctave/array/Sparse.cc
liboctave/array/boolMatrix.cc
liboctave/array/boolSparse.cc
liboctave/array/chMatrix.cc
liboctave/array/dColVector.cc
liboctave/array/dDiagMatrix.cc
liboctave/array/dMatrix.cc
liboctave/array/dNDArray.cc
liboctave/array/dRowVector.cc
liboctave/array/dSparse.cc
liboctave/array/fCColVector.cc
liboctave/array/fCDiagMatrix.cc
liboctave/array/fCMatrix.cc
liboctave/array/fCNDArray.cc
liboctave/array/fCRowVector.cc
liboctave/array/fColVector.cc
liboctave/array/fDiagMatrix.cc
liboctave/array/fMatrix.cc
liboctave/array/fNDArray.cc
liboctave/array/fRowVector.cc
liboctave/array/idx-vector.cc
liboctave/numeric/CollocWt.cc
liboctave/numeric/eigs-base.cc
liboctave/system/file-ops.cc
liboctave/system/oct-time.cc
liboctave/util/cmd-hist.cc
liboctave/util/data-conv.cc
liboctave/util/data-conv.h
liboctave/util/file-info.cc
liboctave/util/lo-utils.cc
liboctave/util/lo-utils.h
liboctave/util/quit.cc
liboctave/util/str-vec.cc
liboctave/util/url-transfer.cc
liboctave/util/url-transfer.h
author | John W. Eaton <jwe@octave.org> |
---|---|
date | Thu, 07 Jun 2018 10:11:54 -0400 |
parents | 6652d3823428 |
children | 37132909ac91 |
line wrap: on
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/* Copyright (C) 2000-2018 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 <https://www.gnu.org/licenses/>. */ #if ! defined (octave_c_file_ptr_stream_h) #define octave_c_file_ptr_stream_h 1 #include "octave-config.h" #include <cstdio> #include <iosfwd> #include <streambuf> class c_file_ptr_buf : public std::streambuf { public: typedef std::streambuf::int_type int_type; typedef int (*close_fcn) (FILE *); FILE *stdiofile (void) { return f; } c_file_ptr_buf (FILE *f_arg, close_fcn cf_arg = file_close) : std::streambuf (), f (f_arg), cf (cf_arg) { } // No copying! c_file_ptr_buf (const c_file_ptr_buf&) = delete; c_file_ptr_buf& operator = (const c_file_ptr_buf&) = delete; ~c_file_ptr_buf (void); int_type overflow (int_type); int_type underflow (void) { return underflow_common (false); } int_type uflow (void) { return underflow_common (true); } int_type pbackfail (int_type); std::streamsize xsputn (const char*, std::streamsize); std::streamsize xsgetn (char *, std::streamsize); std::streampos seekoff (std::streamoff, std::ios::seekdir, std::ios::openmode = std::ios::in | std::ios::out); std::streampos seekpos (std::streampos, std::ios::openmode = std::ios::in | std::ios::out); int sync (void); int flush (void); int buf_close (void); int file_number () const { return f ? fileno (f) : -1; } int seek (off_t offset, int origin); off_t tell (void); void clear (void) { if (f) clearerr (f); } static int file_close (FILE *f); protected: FILE *f; close_fcn cf; private: int_type underflow_common (bool); }; // FIXME: the following three classes could probably share some code... template <typename STREAM_T, typename FILE_T, typename BUF_T> class c_file_ptr_stream : public STREAM_T { public: c_file_ptr_stream (FILE_T f, typename BUF_T::close_fcn cf = BUF_T::file_close) : STREAM_T (nullptr), buf (new BUF_T (f, cf)) { STREAM_T::init (buf); } // No copying! c_file_ptr_stream (const c_file_ptr_stream&) = delete; c_file_ptr_stream& operator = (const c_file_ptr_stream&) = delete; ~c_file_ptr_stream (void) { delete buf; buf = nullptr; } BUF_T * rdbuf (void) { return buf; } void stream_close (void) { if (buf) buf->buf_close (); } int seek (off_t offset, int origin) { return buf ? buf->seek (offset, origin) : -1; } off_t tell (void) { return buf ? buf->tell () : -1; } void clear (void) { if (buf) buf->clear (); STREAM_T::clear (); } private: BUF_T *buf; }; typedef c_file_ptr_stream<std::istream, FILE *, c_file_ptr_buf> i_c_file_ptr_stream; typedef c_file_ptr_stream<std::ostream, FILE *, c_file_ptr_buf> o_c_file_ptr_stream; typedef c_file_ptr_stream<std::iostream, FILE *, c_file_ptr_buf> io_c_file_ptr_stream; #if defined (HAVE_ZLIB) #if defined (HAVE_ZLIB_H) # include <zlib.h> #endif class c_zfile_ptr_buf : public std::streambuf { public: typedef std::streambuf::int_type int_type; typedef int (*close_fcn) (gzFile); gzFile stdiofile (void) { return f; } c_zfile_ptr_buf (gzFile f_arg, close_fcn cf_arg = file_close) : std::streambuf (), f (f_arg), cf (cf_arg) { } // No copying! c_zfile_ptr_buf (const c_zfile_ptr_buf&) = delete; c_zfile_ptr_buf& operator = (const c_zfile_ptr_buf&) = delete; ~c_zfile_ptr_buf (void); int_type overflow (int_type); int_type underflow (void) { return underflow_common (false); } int_type uflow (void) { return underflow_common (true); } int_type pbackfail (int_type); std::streamsize xsputn (const char*, std::streamsize); std::streamsize xsgetn (char *, std::streamsize); std::streampos seekoff (std::streamoff, std::ios::seekdir, std::ios::openmode = std::ios::in | std::ios::out); std::streampos seekpos (std::streampos, std::ios::openmode = std::ios::in | std::ios::out); int sync (void); int flush (void); int buf_close (void); int file_number () const { return -1; } int seek (off_t offset, int origin) { return f ? gzseek (f, offset, origin) >= 0 : -1; } off_t tell (void) { return f ? gztell (f) : -1; } void clear (void) { if (f) gzclearerr (f); } static int file_close (gzFile f) { return ::gzclose (f); } protected: gzFile f; close_fcn cf; private: int_type underflow_common (bool); }; typedef c_file_ptr_stream<std::istream, gzFile, c_zfile_ptr_buf> i_c_zfile_ptr_stream; typedef c_file_ptr_stream<std::ostream, gzFile, c_zfile_ptr_buf> o_c_zfile_ptr_stream; typedef c_file_ptr_stream<std::iostream, gzFile, c_zfile_ptr_buf> io_c_zfile_ptr_stream; #endif #endif