Mercurial > octave-nkf
view libinterp/octave-value/ov-base-scalar.cc @ 20530:bf6c4433ed5f
Clean up isa() function.
* ov-class.cc (Fisa): Remove not strictly necessary const modifiers on
variables. Use more meaningful variable names. Put direct test for
class name first in if tree since this is the most likely test to
succeed.
author | Rik <rik@octave.org> |
---|---|
date | Tue, 22 Sep 2015 01:38:40 -0700 |
parents | 4197fc428c7d |
children |
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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 "oct-obj.h" #include "ov-base.h" #include "ov-cx-mat.h" #include "ov-re-mat.h" #include "ov-base-scalar.h" #include "pr-output.h" template <class ST> octave_value octave_base_scalar<ST>::subsref (const std::string& type, const std::list<octave_value_list>& idx) { octave_value retval; switch (type[0]) { case '(': retval = do_index_op (idx.front ()); break; case '{': case '.': { std::string nm = type_name (); error ("%s cannot be indexed with %c", nm.c_str (), type[0]); } break; default: panic_impossible (); } return retval.next_subsref (type, idx); } template <class ST> octave_value octave_base_scalar<ST>::subsasgn (const std::string& type, const std::list<octave_value_list>& idx, const octave_value& rhs) { octave_value retval; switch (type[0]) { case '(': { if (type.length () == 1) retval = numeric_assign (type, idx, rhs); else { std::string nm = type_name (); error ("in indexed assignment of %s, last rhs index must be ()", nm.c_str ()); } } break; case '{': case '.': { std::string nm = type_name (); error ("%s cannot be indexed with %c", nm.c_str (), type[0]); } break; default: panic_impossible (); } return retval; } template <class ST> octave_value octave_base_scalar<ST>::permute (const Array<int>& vec, bool inv) const { return Array<ST> (dim_vector (1, 1), scalar).permute (vec, inv); } template <class ST> octave_value octave_base_scalar<ST>::reshape (const dim_vector& new_dims) const { return Array<ST> (dim_vector (1, 1), scalar).reshape (new_dims); } template <class ST> octave_value octave_base_scalar<ST>::diag (octave_idx_type k) const { return Array<ST> (dim_vector (1, 1), scalar).diag (k); } template <class ST> octave_value octave_base_scalar<ST>::diag (octave_idx_type m, octave_idx_type n) const { return Array<ST> (dim_vector (1, 1), scalar).diag (m, n); } template <class ST> bool octave_base_scalar<ST>::is_true (void) const { bool retval = false; if (xisnan (scalar)) gripe_nan_to_logical_conversion (); else retval = (scalar != ST ()); return retval; } template <class ST> void octave_base_scalar<ST>::print (std::ostream& os, bool pr_as_read_syntax) { print_raw (os, pr_as_read_syntax); newline (os); } template <class ST> void octave_base_scalar<ST>::print_raw (std::ostream& os, bool pr_as_read_syntax) const { indent (os); octave_print_internal (os, scalar, pr_as_read_syntax); } template <class ST> bool octave_base_scalar<ST>::print_name_tag (std::ostream& os, const std::string& name) const { indent (os); os << name << " = "; return false; } template <class ST> void octave_base_scalar<ST>::short_disp (std::ostream& os) const { std::ostringstream buf; octave_print_internal (buf, scalar); std::string tmp = buf.str (); size_t pos = tmp.find_first_not_of (" "); if (pos != std::string::npos) os << tmp.substr (pos); else if (! tmp.empty ()) os << tmp[0]; } template <class ST> octave_value octave_base_scalar<ST>::fast_elem_extract (octave_idx_type n) const { return (n == 0) ? octave_value (scalar) : octave_value (); } template <class ST> bool octave_base_scalar<ST>::fast_elem_insert_self (void *where, builtin_type_t btyp) const { // Don't use builtin_type () here to avoid an extra VM call. if (btyp == class_to_btyp<ST>::btyp) { *(reinterpret_cast<ST *>(where)) = scalar; return true; } else return false; }