Mercurial > octave
view libinterp/corefcn/getgrent.cc @ 20939:b17fda023ca6
maint: Use new C++ archetype in more files.
Place input validation first in files.
Move declaration of retval down in function to be closer to point of usage.
Eliminate else clause after if () error.
Use "return ovl()" where it makes sense.
* find.cc, gammainc.cc, gcd.cc, getgrent.cc, getpwent.cc, givens.cc,
graphics.cc, help.cc, hess.cc, hex2num.cc, input.cc, kron.cc, load-path.cc,
load-save.cc, lookup.cc, mappers.cc, matrix_type.cc, mgorth.cc, nproc.cc,
ordschur.cc, pager.cc, pinv.cc, pr-output.cc, profiler.cc, psi.cc, quad.cc,
rcond.cc, regexp.cc, schur.cc, sighandlers.cc, sparse.cc, str2double.cc,
strfind.cc, strfns.cc, sub2ind.cc, svd.cc, sylvester.cc, symtab.cc,
syscalls.cc, sysdep.cc, time.cc, toplev.cc, tril.cc, tsearch.cc, typecast.cc,
urlwrite.cc, utils.cc, variables.cc, __delaunayn__.cc, __eigs__.cc,
__glpk__.cc, __magick_read__.cc, __osmesa_print__.cc, __voronoi__.cc, amd.cc,
audiodevinfo.cc, audioread.cc, chol.cc, colamd.cc, dmperm.cc, fftw.cc, qr.cc,
symbfact.cc, symrcm.cc, ov-bool-mat.cc, ov-cell.cc, ov-class.cc,
ov-classdef.cc, ov-fcn-handle.cc, ov-fcn-inline.cc, ov-flt-re-mat.cc,
ov-java.cc, ov-null-mat.cc, ov-oncleanup.cc, ov-re-mat.cc, ov-struct.cc,
ov-typeinfo.cc, ov-usr-fcn.cc, ov.cc, octave.cc:
Use new C++ archetype in more files.
author | Rik <rik@octave.org> |
---|---|
date | Fri, 18 Dec 2015 15:37:22 -0800 |
parents | f1b2a2dbc0e1 |
children | 48b2ad5ee801 |
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/* Copyright (C) 1996-2015 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 <string> #include <sys/types.h> #include "oct-group.h" #include "defun.h" #include "error.h" #include "gripes.h" #include "oct-map.h" #include "ov.h" #include "oct-obj.h" #include "utils.h" // Group file functions. (Why not?) static octave_value mk_gr_map (const octave_group& gr) { octave_value retval; if (gr) { octave_scalar_map m; m.assign ("name", gr.name ()); m.assign ("passwd", gr.passwd ()); m.assign ("gid", static_cast<double> (gr.gid ())); m.assign ("mem", octave_value (gr.mem ())); retval = ovl (m); } else retval = ovl (0); return retval; } DEFUN (getgrent, args, , "-*- texinfo -*-\n\ @deftypefn {} {@var{grp_struct} =} getgrent ()\n\ Return an entry from the group database, opening it if necessary.\n\ \n\ Once the end of data has been reached, @code{getgrent} returns 0.\n\ @seealso{setgrent, endgrent}\n\ @end deftypefn") { if (args.length () != 0) print_usage (); std::string msg; // octave_group::getgrent may set msg. octave_value val = mk_gr_map (octave_group::getgrent (msg)); return ovl (val, msg); } DEFUN (getgrgid, args, , "-*- texinfo -*-\n\ @deftypefn {} {@var{grp_struct} =} getgrgid (@var{gid}).\n\ Return the first entry from the group database with the group ID\n\ @var{gid}.\n\ \n\ If the group ID does not exist in the database, @code{getgrgid} returns 0.\n\ @seealso{getgrnam}\n\ @end deftypefn") { if (args.length () != 1) print_usage (); double dval = args(0).double_value (); if (D_NINT (dval) != dval) error ("getgrgid: GID must be an integer"); gid_t gid = static_cast<gid_t> (dval); std::string msg; // octave_group::getgrgid may set msg. octave_value val = mk_gr_map (octave_group::getgrgid (gid, msg)); return ovl (val, msg); } DEFUN (getgrnam, args, , "-*- texinfo -*-\n\ @deftypefn {} {@var{grp_struct} =} getgrnam (@var{name})\n\ Return the first entry from the group database with the group name\n\ @var{name}.\n\ \n\ If the group name does not exist in the database, @code{getgrnam} returns 0.\n\ @seealso{getgrgid}\n\ @end deftypefn") { if (args.length () != 1) print_usage (); std::string s = args(0).string_value (); std::string msg; // octave_group::getgrnam may set msg. octave_value val = mk_gr_map (octave_group::getgrnam (s.c_str (), msg)); return ovl (val, msg); } DEFUN (setgrent, args, , "-*- texinfo -*-\n\ @deftypefn {} {} setgrent ()\n\ Return the internal pointer to the beginning of the group database.\n\ @seealso{getgrent, endgrent}\n\ @end deftypefn") { if (args.length () != 0) print_usage (); std::string msg; // octave_group::setgrent may set msg. int status = octave_group::setgrent (msg); return ovl (static_cast<double> (status), msg); } DEFUN (endgrent, args, , "-*- texinfo -*-\n\ @deftypefn {} {} endgrent ()\n\ Close the group database.\n\ @seealso{getgrent, setgrent}\n\ @end deftypefn") { if (args.length () != 0) print_usage (); std::string msg; // octave_group::endgrent may set msg. int status = octave_group::endgrent (msg); return ovl (static_cast<double> (status), msg); }