Mercurial > hg > octave-lojdl
diff src/ov-fcn-handle.h @ 4343:db5e0814277a
[project @ 2003-02-20 16:44:16 by jwe]
author | jwe |
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date | Thu, 20 Feb 2003 16:46:37 +0000 |
parents | |
children | d39de791ef9c |
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new file mode 100644 --- /dev/null +++ b/src/ov-fcn-handle.h @@ -0,0 +1,101 @@ +/* + +Copyright (C) 2003 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 2, 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, write to the Free +Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + +*/ + +#if !defined (octave_fcn_handle_h) +#define octave_fcn_handle_h 1 + +#if defined (__GNUG__) && defined (USE_PRAGMA_INTERFACE_IMPLEMENTATION) +#pragma interface +#endif + +#include <iostream> +#include <string> + +#include "oct-alloc.h" + +#include "ov-base.h" +#include "ov-fcn.h" +#include "symtab.h" + +// Function handles. + +class +octave_fcn_handle : public octave_base_value +{ +public: + + octave_fcn_handle (octave_function *f = 0, + const std::string& n = std::string ()) + : fcn (f), nm (n) { } + + octave_fcn_handle (const octave_fcn_handle& fh) + : fcn (fh.fcn), nm (fh.nm) { } + + octave_fcn_handle& operator = (const octave_fcn_handle& fh) + { + if (this != &fh) + { + fcn = fh.fcn; + nm = fh.nm; + } + + return *this; + } + + ~octave_fcn_handle (void) { } + + bool is_defined (void) const { return fcn; } + + octave_function *function_value (bool) { return fcn; } + + octave_fcn_handle fcn_handle_value (bool) { return *this; } + + bool print_as_scalar (void) const { return true; } + + void print (std::ostream& os, bool pr_as_read_syntax = false) const; + + void print_raw (std::ostream& os, bool pr_as_read_syntax = false) const; + + std::string name (void) const { return nm; } + +private: + + // The function we are handling. + octave_function *fcn; + + // The name of the handle. + std::string nm; + + DECLARE_OV_TYPEID_FUNCTIONS_AND_DATA + + DECLARE_OCTAVE_ALLOCATOR +}; + +extern octave_value make_fcn_handle (const std::string& nm); + +#endif + +/* +;;; Local Variables: *** +;;; mode: C++ *** +;;; End: *** +*/