view libinterp/octave-value/ov-int64.cc @ 15487:ecf5be238b4a

provide signbit mapper for real values * mappers.cc (Fsignbit): New function and tests. * ov-base.cc (octave_base_value::get_umap_name): Include signbit in the list. * ov-base.h (octave_base_value::unary_mapper_t): Include umap_xsignbit in the list. * ov-float.cc (octave_float_scalar::map): Handle xsignbit. * ov-scalar.cc (octave_scalar::map): Handle xsignbit. * ov-re-mat.cc (octave_matrix::map): Handle xsignbit. * ov-flt-re-mat.cc (octave_float_matrix::map): Handle xsignbit. * lo-mappers.h (xsignbit): New template function. * arith.txi: Document signbit.
author John W. Eaton <jwe@octave.org>
date Thu, 04 Oct 2012 09:48:07 -0400
parents 9020dddc925a
children
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/*

Copyright (C) 2004-2012 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 <limits>

#include "lo-ieee.h"
#include "lo-utils.h"
#include "mx-base.h"
#include "quit.h"

#include "defun.h"
#include "gripes.h"
#include "oct-obj.h"
#include "oct-lvalue.h"
#include "ops.h"
#include "ov-base.h"

#ifdef HAVE_HDF5
#define HDF5_SAVE_TYPE H5T_NATIVE_INT64
#endif

#include "ov-base-int.h"
#include "ov-base-int.cc"
#include "ov-int64.h"
#include "ov-type-conv.h"
#include "pr-output.h"
#include "variables.h"

#include "byte-swap.h"
#include "ls-oct-ascii.h"
#include "ls-utils.h"
#include "ls-hdf5.h"

template class octave_base_matrix<int64NDArray>;

template class octave_base_int_matrix<int64NDArray>;

DEFINE_OCTAVE_ALLOCATOR (octave_int64_matrix);

DEFINE_OV_TYPEID_FUNCTIONS_AND_DATA (octave_int64_matrix,
                                     "int64 matrix", "int64");

template class octave_base_scalar<octave_int64>;

template class octave_base_int_scalar<octave_int64>;

DEFINE_OCTAVE_ALLOCATOR (octave_int64_scalar);

DEFINE_OV_TYPEID_FUNCTIONS_AND_DATA (octave_int64_scalar,
                                     "int64 scalar", "int64");

DEFUN (int64, args, ,
  "-*- texinfo -*-\n\
@deftypefn {Built-in Function} {} int64 (@var{x})\n\
Convert @var{x} to 64-bit integer type.\n\
@end deftypefn")
{
  OCTAVE_TYPE_CONV_BODY (int64);
}

/*
%!assert (class (int64 (1)), "int64")
%!assert (int64 (1.25), int64 (1))
%!assert (int64 (1.5), int64 (2))
%!assert (int64 (-1.5), int64 (-2))
%!assert (int64 (2^65), int64 (2^64-1))
%!assert (int64 (-2^65), int64 (-2^64))
*/