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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 "data-conv.h"
#include "mach-info.h"
#include "lo-specfun.h"
#include "lo-mappers.h"
#include "defun.h"
#include "gripes.h"
#include "mxarray.h"
#include "oct-obj.h"
#include "oct-hdf5.h"
#include "oct-stream.h"
#include "ov-scalar.h"
#include "ov-float.h"
#include "ov-base.h"
#include "ov-base-scalar.h"
#include "ov-base-scalar.cc"
#include "ov-re-mat.h"
#include "ov-typeinfo.h"
#include "pr-output.h"
#include "xdiv.h"
#include "xpow.h"
#include "ops.h"
#include "ls-oct-ascii.h"
#include "ls-hdf5.h"
// Prevent implicit instantiations on some systems (Windows, others?)
// that can lead to duplicate definitions of static data members.
extern template class OCTINTERP_API octave_base_scalar<float>;
template class octave_base_scalar<double>;
DEFINE_OV_TYPEID_FUNCTIONS_AND_DATA (octave_scalar, "scalar", "double");
static octave_base_value *
default_numeric_demotion_function (const octave_base_value& a)
{
CAST_CONV_ARG (const octave_scalar&);
return new octave_float_scalar (v.float_value ());
}
octave_base_value::type_conv_info
octave_scalar::numeric_demotion_function (void) const
{
return octave_base_value::type_conv_info
(default_numeric_demotion_function,
octave_float_scalar::static_type_id ());
}
octave_value
octave_scalar::do_index_op (const octave_value_list& idx, bool resize_ok)
{
// FIXME: this doesn't solve the problem of
//
// a = 1; a([1,1], [1,1], [1,1])
//
// and similar constructions. Hmm...
// FIXME: using this constructor avoids narrowing the
// 1x1 matrix back to a scalar value. Need a better solution
// to this problem.
octave_value tmp (new octave_matrix (matrix_value ()));
return tmp.do_index_op (idx, resize_ok);
}
octave_value
octave_scalar::resize (const dim_vector& dv, bool fill) const
{
if (fill)
{
NDArray retval (dv, 0);
if (dv.numel ())
retval(0) = scalar;
return retval;
}
else
{
NDArray retval (dv);
if (dv.numel ())
retval(0) = scalar;
return retval;
}
}
octave_value
octave_scalar::diag (octave_idx_type m, octave_idx_type n) const
{
return DiagMatrix (Array<double> (dim_vector (1, 1), scalar), m, n);
}
octave_value
octave_scalar::convert_to_str_internal (bool, bool, char type) const
{
octave_value retval;
if (xisnan (scalar))
gripe_nan_to_character_conversion ();
else
{
int ival = NINT (scalar);
if (ival < 0 || ival > std::numeric_limits<unsigned char>::max ())
{
// FIXME: is there something better we could do?
ival = 0;
::warning ("range error for conversion to character value");
}
retval = octave_value (std::string (1, static_cast<char> (ival)), type);
}
return retval;
}
bool
octave_scalar::save_ascii (std::ostream& os)
{
double d = double_value ();
octave_write_double (os, d);
os << "\n";
return true;
}
bool
octave_scalar::load_ascii (std::istream& is)
{
scalar = octave_read_value<double> (is);
if (!is)
{
error ("load: failed to load scalar constant");
return false;
}
return true;
}
bool
octave_scalar::save_binary (std::ostream& os, bool& /* save_as_floats */)
{
char tmp = LS_DOUBLE;
os.write (reinterpret_cast<char *> (&tmp), 1);
double dtmp = double_value ();
os.write (reinterpret_cast<char *> (&dtmp), 8);
return true;
}
bool
octave_scalar::load_binary (std::istream& is, bool swap,
oct_mach_info::float_format fmt)
{
char tmp;
if (! is.read (reinterpret_cast<char *> (&tmp), 1))
return false;
double dtmp;
read_doubles (is, &dtmp, static_cast<save_type> (tmp), 1, swap, fmt);
if (error_state || ! is)
return false;
scalar = dtmp;
return true;
}
bool
octave_scalar::save_hdf5 (octave_hdf5_id loc_id, const char *name,
bool /* save_as_floats */)
{
bool retval = false;
#if defined (HAVE_HDF5)
hsize_t dimens[3];
hid_t space_hid, data_hid;
space_hid = data_hid = -1;
space_hid = H5Screate_simple (0, dimens, 0);
if (space_hid < 0) return false;
#if HAVE_HDF5_18
data_hid = H5Dcreate (loc_id, name, H5T_NATIVE_DOUBLE, space_hid,
H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT);
#else
data_hid = H5Dcreate (loc_id, name, H5T_NATIVE_DOUBLE, space_hid,
H5P_DEFAULT);
#endif
if (data_hid < 0)
{
H5Sclose (space_hid);
return false;
}
double tmp = double_value ();
retval = H5Dwrite (data_hid, H5T_NATIVE_DOUBLE, H5S_ALL, H5S_ALL,
H5P_DEFAULT, &tmp) >= 0;
H5Dclose (data_hid);
H5Sclose (space_hid);
#else
gripe_save ("hdf5");
#endif
return retval;
}
bool
octave_scalar::load_hdf5 (octave_hdf5_id loc_id, const char *name)
{
#if defined (HAVE_HDF5)
#if HAVE_HDF5_18
hid_t data_hid = H5Dopen (loc_id, name, H5P_DEFAULT);
#else
hid_t data_hid = H5Dopen (loc_id, name);
#endif
hid_t space_id = H5Dget_space (data_hid);
hsize_t rank = H5Sget_simple_extent_ndims (space_id);
if (rank != 0)
{
H5Dclose (data_hid);
return false;
}
double dtmp;
if (H5Dread (data_hid, H5T_NATIVE_DOUBLE, H5S_ALL, H5S_ALL,
H5P_DEFAULT, &dtmp) < 0)
{
H5Dclose (data_hid);
return false;
}
scalar = dtmp;
H5Dclose (data_hid);
return true;
#else
gripe_load ("hdf5");
return false;
#endif
}
mxArray *
octave_scalar::as_mxArray (void) const
{
mxArray *retval = new mxArray (mxDOUBLE_CLASS, 1, 1, mxREAL);
double *pr = static_cast<double *> (retval->get_data ());
pr[0] = scalar;
return retval;
}
octave_value
octave_scalar::map (unary_mapper_t umap) const
{
switch (umap)
{
case umap_imag:
return 0.0;
case umap_real:
case umap_conj:
return scalar;
#define SCALAR_MAPPER(UMAP, FCN) \
case umap_ ## UMAP: \
return octave_value (FCN (scalar))
SCALAR_MAPPER (abs, ::fabs);
SCALAR_MAPPER (acos, rc_acos);
SCALAR_MAPPER (acosh, rc_acosh);
SCALAR_MAPPER (angle, ::arg);
SCALAR_MAPPER (arg, ::arg);
SCALAR_MAPPER (asin, rc_asin);
SCALAR_MAPPER (asinh, ::asinh);
SCALAR_MAPPER (atan, ::atan);
SCALAR_MAPPER (atanh, rc_atanh);
SCALAR_MAPPER (erf, ::erf);
SCALAR_MAPPER (erfinv, ::erfinv);
SCALAR_MAPPER (erfcinv, ::erfcinv);
SCALAR_MAPPER (erfc, ::erfc);
SCALAR_MAPPER (erfcx, ::erfcx);
SCALAR_MAPPER (erfi, ::erfi);
SCALAR_MAPPER (dawson, ::dawson);
SCALAR_MAPPER (gamma, xgamma);
SCALAR_MAPPER (lgamma, rc_lgamma);
SCALAR_MAPPER (cbrt, ::cbrt);
SCALAR_MAPPER (ceil, ::ceil);
SCALAR_MAPPER (cos, ::cos);
SCALAR_MAPPER (cosh, ::cosh);
SCALAR_MAPPER (exp, ::exp);
SCALAR_MAPPER (expm1, ::expm1);
SCALAR_MAPPER (fix, ::fix);
SCALAR_MAPPER (floor, gnulib::floor);
SCALAR_MAPPER (log, rc_log);
SCALAR_MAPPER (log2, rc_log2);
SCALAR_MAPPER (log10, rc_log10);
SCALAR_MAPPER (log1p, rc_log1p);
SCALAR_MAPPER (round, xround);
SCALAR_MAPPER (roundb, xroundb);
SCALAR_MAPPER (signum, ::signum);
SCALAR_MAPPER (sin, ::sin);
SCALAR_MAPPER (sinh, ::sinh);
SCALAR_MAPPER (sqrt, rc_sqrt);
SCALAR_MAPPER (tan, ::tan);
SCALAR_MAPPER (tanh, ::tanh);
SCALAR_MAPPER (finite, xfinite);
SCALAR_MAPPER (isinf, xisinf);
SCALAR_MAPPER (isna, octave_is_NA);
SCALAR_MAPPER (isnan, xisnan);
SCALAR_MAPPER (xsignbit, xsignbit);
// Special cases for Matlab compatibility.
case umap_xtolower:
case umap_xtoupper:
return scalar;
case umap_xisalnum:
case umap_xisalpha:
case umap_xisascii:
case umap_xiscntrl:
case umap_xisdigit:
case umap_xisgraph:
case umap_xislower:
case umap_xisprint:
case umap_xispunct:
case umap_xisspace:
case umap_xisupper:
case umap_xisxdigit:
case umap_xtoascii:
{
octave_value str_conv = convert_to_str (true, true);
return error_state ? octave_value () : str_conv.map (umap);
}
default:
return octave_base_value::map (umap);
}
}
bool
octave_scalar::fast_elem_insert_self (void *where, builtin_type_t btyp) const
{
// Support inline real->complex conversion.
if (btyp == btyp_double)
{
*(reinterpret_cast<double *>(where)) = scalar;
return true;
}
else if (btyp == btyp_complex)
{
*(reinterpret_cast<Complex *>(where)) = scalar;
return true;
}
else
return false;
}
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