Mercurial > octave
view libinterp/parse-tree/pt.cc @ 21743:f4d7d0eb5b0c
use namespace for unwind_protect class
* unwind-prot.h, unwind-prot.cc: Put unwind_protect in octave
namespace. Change all uses.
author | John W. Eaton <jwe@octave.org> |
---|---|
date | Thu, 19 May 2016 12:56:47 -0400 |
parents | aba2e6293dd8 |
children | 0806871e3e1e |
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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/>. */ #if defined (HAVE_CONFIG_H) # include "config.h" #endif #include <iostream> #include <sstream> #include <string> #include "ov-fcn.h" #include "pt.h" #include "pt-pr-code.h" #include "unwind-prot.h" // Hide the details of the string buffer so that we are less likely to // create a memory leak. std::string tree::str_print_code (void) { std::ostringstream buf; tree_print_code tpc (buf); accept (tpc); std::string retval = buf.str (); return retval; } // function from libinterp/parse-tree/oct-parse.cc, not listed in oct-parse.h octave_value_list eval_string (const std::string&, bool, int&, int); // Is the current breakpoint condition met? bool tree::meets_bp_condition () const { bool retval; if (bp == 0) retval = false; else if (bp->length () == 0) // empty condition always met retval = true; else { int parse_status = 0; octave::unwind_protect frame; frame.protect_var (buffer_error_messages); frame.protect_var (Vdebug_on_error); frame.protect_var (Vdebug_on_warning); buffer_error_messages++; Vdebug_on_error = false; Vdebug_on_warning = false; retval = true; // default to stopping if any error try { octave_value_list val = eval_string (*bp, 1, parse_status, 1); if (parse_status == 0) { if (! val(0).is_scalar_type ()) warning ("Breakpoint condition must be a scalar, not size %s", val(0).dims ().str ('x').c_str ()); else retval = val(0).bool_value (); } else warning ("Error parsing breakpoint condition"); } catch (const octave_execution_exception& e) { warning ("Error evaluating breakpoint condition:\n %s", last_error_message ().c_str ()); } } return retval; }