/*

Copyright (C) 1996-2018 John W. Eaton
Copyright (C) 2009 VZLU Prague, a.s.

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
<https://www.gnu.org/licenses/>.

*/

#if ! defined (octave_ops_h)
#define octave_ops_h 1

#include "octave-config.h"

#include "Array-util.h"

namespace octave
{
  class type_info;
}

// Concatenation macros that enforce argument prescan
#define CONCAT2X(x, y) x ## y
#define CONCAT2(x, y) CONCAT2X (x, y)

#define CONCAT3X(x, y, z) x ## y ## z
#define CONCAT3(x, y, z) CONCAT3X (x, y, z)

extern void install_ops (octave::type_info&);

#define INSTALL_UNOP_TI(ti, op, t, f)                                   \
  ti.install_unary_op                                                   \
  (octave_value::op, t::static_type_id (), CONCAT2 (oct_unop_, f));

#define INSTALL_NCUNOP_TI(ti, op, t, f)                                 \
  ti.install_non_const_unary_op                                         \
  (octave_value::op, t::static_type_id (), CONCAT2 (oct_unop_, f));

#define INSTALL_BINOP_TI(ti, op, t1, t2, f)                             \
  ti.install_binary_op                                                  \
  (octave_value::op, t1::static_type_id (), t2::static_type_id (),      \
   CONCAT2 (oct_binop_, f));

#define INSTALL_CATOP_TI(ti, t1, t2, f)                                 \
  ti.install_cat_op                                                     \
  (t1::static_type_id (), t2::static_type_id (), CONCAT2 (oct_catop_, f));

#define INSTALL_ASSIGNOP_TI(ti, op, t1, t2, f)                          \
  ti.install_assign_op                                                  \
  (octave_value::op, t1::static_type_id (), t2::static_type_id (),      \
   CONCAT2 (oct_assignop_, f));

#define INSTALL_ASSIGNANYOP_TI(ti, op, t1, f)                           \
  ti.install_assignany_op                                               \
  (octave_value::op, t1::static_type_id (), CONCAT2 (oct_assignop_, f));

#define INSTALL_ASSIGNCONV_TI(ti, t1, t2, tr)                           \
  ti.install_pref_assign_conv                                           \
  (t1::static_type_id (), t2::static_type_id (), tr::static_type_id ());

#define INSTALL_WIDENOP_TI(ti, t1, t2, f)                               \
  ti.install_widening_op                                                \
  (t1::static_type_id (), t2::static_type_id (), CONCAT2 (oct_conv_, f));

// The following INSTALL_* macros are obsolete.

#define INSTALL_UNOP(op, t, f)                                          \
  octave_value_typeinfo::register_unary_op                              \
  (octave_value::op, t::static_type_id (), CONCAT2 (oct_unop_, f));

#define INSTALL_NCUNOP(op, t, f)                                        \
  octave_value_typeinfo::register_non_const_unary_op                    \
  (octave_value::op, t::static_type_id (), CONCAT2 (oct_unop_, f));

#define INSTALL_BINOP(op, t1, t2, f)                                    \
  octave_value_typeinfo::register_binary_op                             \
  (octave_value::op, t1::static_type_id (), t2::static_type_id (),      \
   CONCAT2 (oct_binop_, f));

#define INSTALL_CATOP(t1, t2, f)                                        \
  octave_value_typeinfo::register_cat_op                                \
  (t1::static_type_id (), t2::static_type_id (), CONCAT2 (oct_catop_, f));

#define INSTALL_ASSIGNOP(op, t1, t2, f)                                 \
  octave_value_typeinfo::register_assign_op                             \
  (octave_value::op, t1::static_type_id (), t2::static_type_id (),      \
   CONCAT2 (oct_assignop_, f));

#define INSTALL_ASSIGNANYOP(op, t1, f)                                  \
  octave_value_typeinfo::register_assignany_op                          \
  (octave_value::op, t1::static_type_id (), CONCAT2 (oct_assignop_, f));

#define INSTALL_ASSIGNCONV(t1, t2, tr)                                  \
  octave_value_typeinfo::register_pref_assign_conv                      \
  (t1::static_type_id (), t2::static_type_id (), tr::static_type_id ());

#define INSTALL_WIDENOP(t1, t2, f)                                      \
  octave_value_typeinfo::register_widening_op                           \
  (t1::static_type_id (), t2::static_type_id (), CONCAT2 (oct_conv_, f));

#define DEFASSIGNOP(name, t1, t2)                               \
  static octave_value                                           \
  CONCAT2 (oct_assignop_, name) (octave_base_value& a1,         \
                                 const octave_value_list& idx,  \
                                 const octave_base_value& a2)

#define DEFASSIGNOP_FN(name, t1, t2, f)                                 \
  static octave_value                                                   \
  CONCAT2 (oct_assignop_, name) (octave_base_value& a1,                 \
                                 const octave_value_list& idx,          \
                                 const octave_base_value& a2)           \
  {                                                                     \
    CONCAT2 (octave_, t1)& v1 = dynamic_cast<CONCAT2 (octave_, t1)&> (a1); \
    const CONCAT2 (octave_, t2)& v2 = dynamic_cast<const CONCAT2 (octave_, t2)&> (a2); \
                                                                        \
    v1.f (idx, v2.CONCAT2 (t1, _value) ());                             \
    return octave_value ();                                             \
  }

#define DEFNULLASSIGNOP_FN(name, t, f)                                  \
  static octave_value                                                   \
  CONCAT2 (oct_assignop_, name) (octave_base_value& a,                  \
                                 const octave_value_list& idx,          \
                                 const octave_base_value&)              \
  {                                                                     \
    CONCAT2 (octave_, t)& v = dynamic_cast<CONCAT2 (octave_, t)&> (a);  \
                                                                        \
    v.f (idx);                                                          \
    return octave_value ();                                             \
  }

#define DEFNDASSIGNOP_FN(name, t1, t2, e, f)                            \
  static octave_value                                                   \
  CONCAT2 (oct_assignop_, name) (octave_base_value& a1,                 \
                                 const octave_value_list& idx,          \
                                 const octave_base_value& a2)           \
  {                                                                     \
    CONCAT2 (octave_, t1)& v1 = dynamic_cast<CONCAT2 (octave_, t1)&> (a1); \
    const CONCAT2 (octave_, t2)& v2 = dynamic_cast<const CONCAT2 (octave_, t2)&> (a2); \
                                                                        \
    v1.f (idx, v2.CONCAT2 (e, _value) ());                              \
    return octave_value ();                                             \
  }

// FIXME: the following currently don't handle index.
#define DEFNDASSIGNOP_OP(name, t1, t2, f, op)                           \
  static octave_value                                                   \
  CONCAT2 (oct_assignop_, name) (octave_base_value& a1,                 \
                                 const octave_value_list& idx,          \
                                 const octave_base_value& a2)           \
  {                                                                     \
    CONCAT2 (octave_, t1)& v1 = dynamic_cast<CONCAT2 (octave_, t1)&> (a1); \
    const CONCAT2 (octave_, t2)& v2 = dynamic_cast<const CONCAT2 (octave_, t2)&> (a2); \
                                                                        \
    assert (idx.empty ());                                              \
    v1.matrix_ref () op v2.CONCAT2 (f, _value) ();                      \
                                                                        \
    return octave_value ();                                             \
  }

#define DEFNDASSIGNOP_FNOP(name, t1, t2, f, fnop)                       \
  static octave_value                                                   \
  CONCAT2 (oct_assignop_, name) (octave_base_value& a1,                 \
                                 const octave_value_list& idx,          \
                                 const octave_base_value& a2)           \
  {                                                                     \
    CONCAT2 (octave_, t1)& v1 = dynamic_cast<CONCAT2 (octave_, t1)&> (a1); \
    const CONCAT2 (octave_, t2)& v2 = dynamic_cast<const CONCAT2 (octave_, t2)&> (a2); \
                                                                        \
    assert (idx.empty ());                                              \
    fnop (v1.matrix_ref (), v2.CONCAT2 (f, _value) ());                 \
                                                                        \
    return octave_value ();                                             \
  }

#define DEFASSIGNANYOP_FN(name, t1, f)                                  \
  static octave_value                                                   \
  CONCAT2 (oct_assignop_, name) (octave_base_value& a1,                 \
                                 const octave_value_list& idx,          \
                                 const octave_value& a2)                \
  {                                                                     \
    CONCAT2 (octave_, t1)& v1 = dynamic_cast<CONCAT2 (octave_, t1)&> (a1); \
                                                                        \
    v1.f (idx, a2);                                                     \
    return octave_value ();                                             \
  }

#define CONVDECL(name)                                          \
  static octave_base_value *                                    \
  CONCAT2 (oct_conv_, name) (const octave_base_value& a)

#define DEFCONV(name, a_dummy, b_dummy)         \
  CONVDECL (name)

#define DEFUNOPX(name, t)                               \
  static octave_value                                   \
  CONCAT2 (oct_unop_, name) (const octave_base_value&)

#define DEFUNOP(name, t)                                        \
  static octave_value                                           \
  CONCAT2 (oct_unop_, name) (const octave_base_value& a)

#define DEFUNOP_OP(name, t, op)                                         \
  static octave_value                                                   \
  CONCAT2 (oct_unop_, name) (const octave_base_value& a)                \
  {                                                                     \
    const CONCAT2 (octave_, t)& v = dynamic_cast<const CONCAT2 (octave_, t)&> (a); \
    return octave_value (op v.CONCAT2 (t, _value) ());                  \
  }

#define DEFNDUNOP_OP(name, t, e, op)                                    \
  static octave_value                                                   \
  CONCAT2 (oct_unop_, name) (const octave_base_value& a)                \
  {                                                                     \
    const CONCAT2 (octave_, t)& v = dynamic_cast<const CONCAT2 (octave_, t)&> (a); \
    return octave_value (op v.CONCAT2 (e, _value) ());                  \
  }

// FIXME: in some cases, the constructor isn't necessary.

#define DEFUNOP_FN(name, t, f)                                          \
  static octave_value                                                   \
  CONCAT2 (oct_unop_, name) (const octave_base_value& a)                \
  {                                                                     \
    const CONCAT2 (octave_, t)& v = dynamic_cast<const CONCAT2 (octave_, t)&> (a); \
    return octave_value (f (v.CONCAT2 (t, _value) ()));                 \
  }

#define DEFNDUNOP_FN(name, t, e, f)                                     \
  static octave_value                                                   \
  CONCAT2 (oct_unop_, name) (const octave_base_value& a)                \
  {                                                                     \
    const CONCAT2 (octave_, t)& v = dynamic_cast<const CONCAT2 (octave_, t)&> (a); \
    return octave_value (f (v.CONCAT2 (e, _value) ()));                 \
  }

#define DEFNCUNOP_METHOD(name, t, method)                               \
  static void                                                           \
  CONCAT2 (oct_unop_, name) (octave_base_value& a)                      \
  {                                                                     \
    CONCAT2 (octave_, t)& v = dynamic_cast<CONCAT2 (octave_, t)&> (a);  \
    v.method ();                                                        \
  }

#define DEFBINOPX(name, t1, t2)                         \
  static octave_value                                   \
  CONCAT2 (oct_binop_, name) (const octave_base_value&, \
                              const octave_base_value&)

#define DEFBINOP(name, t1, t2)                                  \
  static octave_value                                           \
  CONCAT2 (oct_binop_, name) (const octave_base_value& a1,      \
                              const octave_base_value& a2)

#define DEFBINOP_OP(name, t1, t2, op)                                   \
  static octave_value                                                   \
  CONCAT2 (oct_binop_, name) (const octave_base_value& a1,              \
                              const octave_base_value& a2)              \
  {                                                                     \
    const CONCAT2 (octave_, t1)& v1 = dynamic_cast<const CONCAT2 (octave_, t1)&> (a1); \
    const CONCAT2 (octave_, t2)& v2 = dynamic_cast<const CONCAT2 (octave_, t2)&> (a2); \
                                                                        \
    return octave_value                                                 \
      (v1.CONCAT2 (t1, _value) () op v2.CONCAT2 (t2, _value) ());       \
  }

#define DEFCMPLXCMPOP_OP(name, t1, t2, op)                              \
  static octave_value                                                   \
  CONCAT2 (oct_binop_, name) (const octave_base_value& a1,              \
                              const octave_base_value& a2)              \
  {                                                                     \
    const CONCAT2 (octave_, t1)& v1 = dynamic_cast<const CONCAT2 (octave_, t1)&> (a1); \
    const CONCAT2 (octave_, t2)& v2 = dynamic_cast<const CONCAT2 (octave_, t2)&> (a2); \
                                                                        \
    warn_complex_cmp ();                                                \
                                                                        \
    return octave_value                                                 \
      (v1.CONCAT2 (t1, _value) () op v2.CONCAT2 (t2, _value) ());       \
  }

#define DEFSCALARBOOLOP_OP(name, t1, t2, op)                            \
  static octave_value                                                   \
  CONCAT2 (oct_binop_, name) (const octave_base_value& a1,              \
                              const octave_base_value& a2)              \
  {                                                                     \
    const CONCAT2 (octave_, t1)& v1 = dynamic_cast<const CONCAT2 (octave_, t1)&> (a1); \
    const CONCAT2 (octave_, t2)& v2 = dynamic_cast<const CONCAT2 (octave_, t2)&> (a2); \
                                                                        \
    if (octave::math::isnan (v1.CONCAT2 (t1, _value) ()) || octave::math::isnan (v2.CONCAT2 (t2, _value) ())) \
      octave::err_nan_to_logical_conversion ();                                 \
                                                                        \
    return octave_value                                                 \
      (v1.CONCAT2 (t1, _value) () op v2.CONCAT2 (t2, _value) ());       \
  }

#define DEFNDBINOP_OP(name, t1, t2, e1, e2, op)                         \
  static octave_value                                                   \
  CONCAT2 (oct_binop_, name) (const octave_base_value& a1,              \
                              const octave_base_value& a2)              \
  {                                                                     \
    const CONCAT2 (octave_, t1)& v1 = dynamic_cast<const CONCAT2 (octave_, t1)&> (a1); \
    const CONCAT2 (octave_, t2)& v2 = dynamic_cast<const CONCAT2 (octave_, t2)&> (a2); \
                                                                        \
    return octave_value                                                 \
      (v1.CONCAT2 (e1, _value) () op v2.CONCAT2 (e2, _value) ());       \
  }

// FIXME: in some cases, the constructor isn't necessary.

#define DEFBINOP_FN(name, t1, t2, f)                                    \
  static octave_value                                                   \
  CONCAT2 (oct_binop_, name) (const octave_base_value& a1,              \
                              const octave_base_value& a2)              \
  {                                                                     \
    const CONCAT2 (octave_, t1)& v1 = dynamic_cast<const CONCAT2 (octave_, t1)&> (a1); \
    const CONCAT2 (octave_, t2)& v2 = dynamic_cast<const CONCAT2 (octave_, t2)&> (a2); \
                                                                        \
    return octave_value (f (v1.CONCAT2 (t1, _value) (), v2.CONCAT2 (t2, _value) ())); \
  }

#define DEFNDBINOP_FN(name, t1, t2, e1, e2, f)                          \
  static octave_value                                                   \
  CONCAT2 (oct_binop_, name) (const octave_base_value& a1,              \
                              const octave_base_value& a2)              \
  {                                                                     \
    const CONCAT2 (octave_, t1)& v1 = dynamic_cast<const CONCAT2 (octave_, t1)&> (a1); \
    const CONCAT2 (octave_, t2)& v2 = dynamic_cast<const CONCAT2 (octave_, t2)&> (a2); \
                                                                        \
    return octave_value (f (v1.CONCAT2 (e1, _value) (), v2.CONCAT2 (e2, _value) ())); \
  }

#define DEFNDCMPLXCMPOP_FN(name, t1, t2, e1, e2, f)                     \
  static octave_value                                                   \
  CONCAT2 (oct_binop_, name) (const octave_base_value& a1,              \
                              const octave_base_value& a2)              \
  {                                                                     \
    const CONCAT2 (octave_, t1)& v1 = dynamic_cast<const CONCAT2 (octave_, t1)&> (a1); \
    const CONCAT2 (octave_, t2)& v2 = dynamic_cast<const CONCAT2 (octave_, t2)&> (a2); \
                                                                        \
    return octave_value (f (v1.CONCAT2 (e1, _value) (), v2.CONCAT2 (e2, _value) ())); \
  }

#define DEFCATOPX(name, t1, t2)                                         \
  static octave_value                                                   \
  CONCAT2 (oct_catop_, name) (octave_base_value&, const octave_base_value&, \
                              const Array<octave_idx_type>& ra_idx)

#define DEFCATOP(name, t1, t2)                                          \
  static octave_value                                                   \
  CONCAT2 (oct_catop_, name) (octave_base_value& a1,                    \
                              const octave_base_value& a2,              \
                              const Array<octave_idx_type>& ra_idx)

// FIXME: in some cases, the constructor isn't necessary.

#define DEFCATOP_FN(name, t1, t2, f)                                    \
  static octave_value                                                   \
  CONCAT2 (oct_catop_, name) (octave_base_value& a1,                    \
                              const octave_base_value& a2,              \
                              const Array<octave_idx_type>& ra_idx)     \
  {                                                                     \
    CONCAT2 (octave_, t1)& v1 = dynamic_cast<CONCAT2 (octave_, t1)&> (a1); \
    const CONCAT2 (octave_, t2)& v2 = dynamic_cast<const CONCAT2 (octave_, t2)&> (a2); \
                                                                        \
    return octave_value (v1.CONCAT2 (t1, _value) () . f (v2.CONCAT2 (t2, _value) (), ra_idx)); \
  }

#define DEFNDCATOP_FN(name, t1, t2, e1, e2, f)                          \
  static octave_value                                                   \
  CONCAT2 (oct_catop_, name) (octave_base_value& a1,                    \
                              const octave_base_value& a2,              \
                              const Array<octave_idx_type>& ra_idx)     \
  {                                                                     \
    CONCAT2 (octave_, t1)& v1 = dynamic_cast<CONCAT2 (octave_, t1)&> (a1); \
    const CONCAT2 (octave_, t2)& v2 = dynamic_cast<const CONCAT2 (octave_, t2)&> (a2); \
                                                                        \
    return octave_value (v1.CONCAT2 (e1, _value) () . f (v2.CONCAT2 (e2, _value) (), ra_idx)); \
  }

#define DEFNDCHARCATOP_FN(name, t1, t2, f)                              \
  static octave_value                                                   \
  CONCAT2 (oct_catop_, name) (octave_base_value& a1,                    \
                              const octave_base_value& a2,              \
                              const Array<octave_idx_type>& ra_idx)     \
  {                                                                     \
    CONCAT2 (octave_, t1)& v1 = dynamic_cast<CONCAT2 (octave_, t1)&> (a1); \
    const CONCAT2 (octave_, t2)& v2 = dynamic_cast<const CONCAT2 (octave_, t2)&> (a2); \
                                                                        \
    return octave_value (v1.char_array_value () . f (v2.char_array_value (), ra_idx), \
                         ((a1.is_sq_string () || a2.is_sq_string ())    \
                          ? '\'' : '"'));                               \
  }

// For compatibility, the second arg is always converted to the type
// of the first.  Hmm.

#define DEFNDCATOP_FN2(name, t1, t2, tc1, tc2, e1, e2, f)               \
  static octave_value                                                   \
  CONCAT2 (oct_catop_, name) (octave_base_value& a1,                    \
                              const octave_base_value& a2,              \
                              const Array<octave_idx_type>& ra_idx)     \
  {                                                                     \
    CONCAT2 (octave_, t1)& v1 = dynamic_cast<CONCAT2 (octave_, t1)&> (a1); \
    const CONCAT2 (octave_, t2)& v2 = dynamic_cast<const CONCAT2 (octave_, t2)&> (a2); \
                                                                        \
    return octave_value (tc1 (v1.CONCAT2 (e1, _value) ()) . f (tc2 (v2.CONCAT2 (e2, _value) ()), ra_idx)); \
  }

#endif
