Mercurial > octave-nkf
view libinterp/corefcn/c-file-ptr-stream.h @ 20587:f90c8372b7ba
eliminate many more simple uses of error_state
* Cell.cc, __ichol__.cc, __ilu__.cc, balance.cc, bsxfun.cc, colloc.cc,
det.cc, dlmread.cc, dynamic-ld.cc, eig.cc, fft.cc, fft2.cc, fftn.cc,
gcd.cc, getgrent.cc, getpwent.cc, givens.cc, hess.cc, input.cc,
levenshtein.cc, load-path.cc, lookup.cc, ls-mat-ascii.cc, ls-mat4.cc,
lsode.cc, lu.cc, max.cc, md5sum.cc, mex.cc, pager.cc, pinv.cc,
pr-output.cc, qz.cc, schur.cc, sparse.cc, sqrtm.cc, str2double.cc,
strfns.cc, sub2ind.cc, sysdep.cc, time.cc, toplev.cc, tril.cc,
tsearch.cc, typecast.cc, __init_gnuplot__.cc, __magick_read__.cc,
__osmesa_print__.cc, amd.cc, audiodevinfo.cc, dmperm.cc, fftw.cc,
symrcm.cc, ov-base-diag.cc, ov-base-sparse.cc, ov-base.cc,
ov-bool-sparse.cc, ov-builtin.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-float.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-lazy-idx.cc, ov-mex-fcn.cc,
ov-perm.cc, ov-range.cc, ov-re-diag.cc, ov-re-mat.cc, ov-re-sparse.cc,
ov-scalar.cc, ov-str-mat.cc, op-bm-b.cc, op-bm-bm.cc, op-sbm-b.cc,
op-sbm-bm.cc, op-str-m.cc, op-str-s.cc, oct-parse.in.yy, pt-cbinop.cc,
pt-colon.cc, pt-decl.cc, pt-exp.cc, pt-id.cc, pt-misc.cc,
pt-select.cc, pt-unop.cc: Eliminate simple uses of error_state.
author | John W. Eaton <jwe@octave.org> |
---|---|
date | Mon, 05 Oct 2015 19:29:36 -0400 |
parents | 1663b82bd009 |
children |
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/* Copyright (C) 2000-2015 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_c_file_ptr_stream_h) #define octave_c_file_ptr_stream_h 1 #include <cstdio> #include <streambuf> class c_file_ptr_buf : public std::streambuf { public: #if !defined (CXX_ISO_COMPLIANT_LIBRARY) typedef int int_type; #else typedef std::streambuf::int_type int_type; #endif 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) { } ~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); // No copying! c_file_ptr_buf (const c_file_ptr_buf&); c_file_ptr_buf& operator = (const c_file_ptr_buf&); }; // 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 (0), buf (new BUF_T (f, cf)) { STREAM_T::init (buf); } ~c_file_ptr_stream (void) { delete buf; buf = 0; } 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; // No copying! c_file_ptr_stream (const c_file_ptr_stream&); c_file_ptr_stream& operator = (const c_file_ptr_stream&); }; 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; #ifdef HAVE_ZLIB #ifdef HAVE_ZLIB_H #include <zlib.h> #endif class c_zfile_ptr_buf : public std::streambuf { public: #if !defined (CXX_ISO_COMPLIANT_LIBRARY) typedef int int_type; #else typedef std::streambuf::int_type int_type; #endif 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) { } ~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); // No copying! c_zfile_ptr_buf (const c_zfile_ptr_buf&); c_zfile_ptr_buf& operator = (const c_zfile_ptr_buf&); }; 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