Mercurial > octave-nkf
view libinterp/parse-tree/pt-exp.cc @ 20584:eb9e2d187ed2
maint: Use Octave coding conventions in scripts/ode/private dir.
* AbsRel_Norm.m, fuzzy_compare.m, hermite_quartic_interpolation.m,
integrate_adaptive.m, integrate_const.m, integrate_n_steps.m, kahan.m,
ode_struct_value_check.m, odepkg_event_handle.m, odepkg_structure_check.m,
runge_kutta_45_dorpri.m, starting_stepsize.m:
Wrap long lines to < 80 chars.
Use double quotes rather than single quotes where possible.
Use ';' at end of keywords "return;" and "break;"
Use '##" for stand-alone comments and '#' for end-of-line comments.
Use two spaces after period before starting new sentence.
Use '!' instead of '~' for logical negation.
Use specific form of end (endif, endfor, etc.).
Don't use line continuation marker '...' unless necessary.
author | Rik <rik@octave.org> |
---|---|
date | Sun, 04 Oct 2015 22:18:54 -0700 |
parents | 7ac907da9fba |
children | f90c8372b7ba |
line wrap: on
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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 <iostream> #include <string> #include "error.h" #include "pager.h" #include "oct-lvalue.h" #include "ov.h" #include "pt-exp.h" // Expressions. bool tree_expression::is_logically_true (const char *warn_for) { bool expr_value = false; octave_value t1 = rvalue1 (); if (! error_state) { if (t1.is_defined ()) return t1.is_true (); else error ("%s: undefined value used in conditional expression", warn_for); } return expr_value; } octave_value tree_expression::rvalue1 (int) { error ("invalid rvalue function called in expression"); return octave_value (); } octave_value_list tree_expression::rvalue (int) { error ("invalid rvalue function called in expression"); return octave_value_list (); } octave_value_list tree_expression::rvalue (int nargout, const std::list<octave_lvalue> *) { return rvalue (nargout); } octave_lvalue tree_expression::lvalue (void) { error ("invalid lvalue function called in expression"); return octave_lvalue (); } std::string tree_expression::original_text (void) const { return std::string (); }