Mercurial > octave
view libinterp/corefcn/c-file-ptr-stream.cc @ 21662:5b9868c2e212
maint: Octave coding convention cleanups.
* Figure.cc, QtHandlesUtils.cc, files-dock-widget.cc, find-files-dialog.cc,
debug.cc, ls-hdf5.h, oct-fstrm.h, oct-iostrm.h, oct-stdstrm.h, oct-stream.h,
pr-output.cc, sysdep.cc, zfstream.h, pt-cbinop.cc, f77-fcn.h, DASPK.cc,
DASSL.cc, cmd-hist.cc, glob-match.h:
Cuddle angle bracket '<' next to C++ cast operator.
Space between variable reference and variable name (int& a).
Space between bitwise operators and their operands (A & B).
Create typedef tree_expression_ptr_t to avoid "tree_expression *&a"
which is unclear.
author | Rik <rik@octave.org> |
---|---|
date | Mon, 02 May 2016 11:13:50 -0700 |
parents | 7ebd8ac26178 |
children | aba2e6293dd8 |
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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/>. */ #ifdef HAVE_CONFIG_H # include "config.h" #endif #include <iostream> #include "c-file-ptr-stream.h" #ifndef SEEK_SET # define SEEK_SET 0 #endif #ifndef SEEK_CUR # define SEEK_CUR 1 #endif #ifndef SEEK_END # define SEEK_END 2 #endif c_file_ptr_buf::~c_file_ptr_buf (void) { buf_close (); } // FIXME: I'm sure there is room for improvement here... c_file_ptr_buf::int_type c_file_ptr_buf::overflow (int_type c) { if (f) return (c != traits_type::eof ()) ? gnulib::fputc (c, f) : flush (); else return traits_type::not_eof (c); } c_file_ptr_buf::int_type c_file_ptr_buf::underflow_common (bool bump) { if (f) { int_type c = gnulib::fgetc (f); if (! bump && c != traits_type::eof ()) ungetc (c, f); return c; } else return traits_type::eof (); } c_file_ptr_buf::int_type c_file_ptr_buf::pbackfail (int_type c) { return ((c != traits_type::eof () && f) ? ungetc (c, f) : traits_type::not_eof (c)); } std::streamsize c_file_ptr_buf::xsputn (const char* s, std::streamsize n) { if (f) return gnulib::fwrite (s, 1, n, f); else return 0; } std::streamsize c_file_ptr_buf::xsgetn (char *s, std::streamsize n) { if (f) return gnulib::fread (s, 1, n, f); else return 0; } static inline int seekdir_to_whence (std::ios::seekdir dir) { return (dir == std::ios::beg ? SEEK_SET : (dir == std::ios::cur ? SEEK_CUR : (dir == std::ios::end ? SEEK_END : dir))); } std::streampos c_file_ptr_buf::seekoff (std::streamoff offset, std::ios::seekdir dir, std::ios::openmode) { if (f) { gnulib::fseeko (f, offset, seekdir_to_whence (dir)); return gnulib::ftello (f); } else return 0; } std::streampos c_file_ptr_buf::seekpos (std::streampos offset, std::ios::openmode) { if (f) { gnulib::fseeko (f, offset, SEEK_SET); return gnulib::ftello (f); } else return 0; } int c_file_ptr_buf::sync (void) { flush (); return 0; } int c_file_ptr_buf::flush (void) { return f ? gnulib::fflush (f) : traits_type::eof (); } int c_file_ptr_buf::buf_close (void) { int retval = -1; flush (); if (f) { retval = cf (f); f = 0; } return retval; } int c_file_ptr_buf::seek (off_t offset, int origin) { return f ? gnulib::fseeko (f, offset, origin) : -1; } off_t c_file_ptr_buf::tell (void) { return f ? gnulib::ftello (f) : -1; } int c_file_ptr_buf::file_close (FILE *f) { return gnulib::fclose (f); } #ifdef HAVE_ZLIB c_zfile_ptr_buf::~c_zfile_ptr_buf (void) { buf_close (); } // FIXME: I'm sure there is room for improvement here... c_zfile_ptr_buf::int_type c_zfile_ptr_buf::overflow (int_type c) { if (f) return (c != traits_type::eof ()) ? gzputc (f, c) : flush (); else return traits_type::not_eof (c); } c_zfile_ptr_buf::int_type c_zfile_ptr_buf::underflow_common (bool bump) { if (f) { int_type c = gzgetc (f); if (! bump && c != traits_type::eof ()) gzungetc (c, f); return c; } else return traits_type::eof (); } c_zfile_ptr_buf::int_type c_zfile_ptr_buf::pbackfail (int_type c) { return ((c != traits_type::eof () && f) ? gzungetc (c, f) : traits_type::not_eof (c)); } std::streamsize c_zfile_ptr_buf::xsputn (const char* s, std::streamsize n) { if (f) return gzwrite (f, s, n); else return 0; } std::streamsize c_zfile_ptr_buf::xsgetn (char *s, std::streamsize n) { if (f) return gzread (f, s, n); else return 0; } std::streampos c_zfile_ptr_buf::seekoff (std::streamoff /* offset */, std::ios::seekdir /* dir */, std::ios::openmode) { // FIXME #if 0 if (f) { gzseek (f, offset, seekdir_to_whence (dir)); return gztell (f); } else return 0; #endif return -1; } std::streampos c_zfile_ptr_buf::seekpos (std::streampos /* offset */, std::ios::openmode) { // FIXME #if 0 if (f) { gzseek (f, offset, SEEK_SET); return gztell (f); } else return 0; #endif return -1; } int c_zfile_ptr_buf::sync (void) { flush (); return 0; } int c_zfile_ptr_buf::flush (void) { // FIXME: do we need something more complex here, passing // something other than 0 for the second argument to gzflush and // checking the return value, etc.? return f ? gzflush (f, 0) : traits_type::eof (); } int c_zfile_ptr_buf::buf_close (void) { int retval = -1; flush (); if (f) { retval = cf (f); f = 0; } return retval; } #endif