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/*

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 *  matiec - a compiler for the programming languages defined in IEC 61131-3

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 *

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 *  Copyright (C) 2009-2012  Mario de Sousa (msousa@fe.up.pt)

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 *  Copyright (C) 2012       Manuele Conti  (conti.ma@alice.it)

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 *

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 *  This program is free software: you can redistribute it and/or modify

     8

 *  it under the terms of the GNU General Public License as published by

     9

 *  the Free Software Foundation, either version 3 of the License, or

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 *  (at your option) any later version.

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 *

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 *  This program is distributed in the hope that it will be useful,

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 *  but WITHOUT ANY WARRANTY; without even the implied warranty of

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 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

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 *  GNU General Public License for more details.

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 *

    17

 *  You should have received a copy of the GNU General Public License

    18

 *  along with this program.  If not, see <http://www.gnu.org/licenses/>.

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 *

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 *

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 * This code is made available on the understanding that it will not be

    22

 * used in safety-critical situations without a full and competent review.

    23

 */

    24

    25

#include "datatype_functions.hh"

    26

#include "../absyntax_utils/absyntax_utils.hh"

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#include <vector>

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// #include <algorithm>

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    34

elementary_type_c *elementary_type_c::singleton = NULL;

    35

    36

const char *elementary_type_c::to_string(symbol_c *symbol) {

    37

  if (NULL == singleton)    singleton = new elementary_type_c;

    38

  if (NULL == singleton)    ERROR;

    39

  const char *res           = (const char *)symbol->accept(*singleton);

    40

  if (NULL == res) {

    41

	  int i = 1;

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  }

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  return res;

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}

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    49

    50

/*

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 * 2.5.1.5.6 Functions of time data types

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 * Table 30 - page 64

    53

 */

    54

    55

const struct widen_entry widen_ADD_table[] = {

    97

    { NULL, NULL, NULL, widen_entry::ok },

    98

};

    99

   100

   103

const struct widen_entry widen_SUB_table[] = {

   141

    { NULL, NULL, NULL, widen_entry::ok },

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};

   143

   150

const struct widen_entry widen_MUL_table[] = {

   151

    { &search_constant_type_c::time_type_name,          &search_constant_type_c::lreal_type_name,           &search_constant_type_c::time_type_name     , widen_entry::deprecated },

   152

    { &search_constant_type_c::time_type_name,          &search_constant_type_c::real_type_name,            &search_constant_type_c::time_type_name     , widen_entry::deprecated },

   153

    { &search_constant_type_c::time_type_name,          &search_constant_type_c::dint_type_name,            &search_constant_type_c::time_type_name     , widen_entry::deprecated },

   154

    { &search_constant_type_c::time_type_name,          &search_constant_type_c::int_type_name,             &search_constant_type_c::time_type_name     , widen_entry::deprecated },

   155

    { &search_constant_type_c::time_type_name,          &search_constant_type_c::sint_type_name,            &search_constant_type_c::time_type_name     , widen_entry::deprecated },

   156

    { &search_constant_type_c::time_type_name,          &search_constant_type_c::ulint_type_name,           &search_constant_type_c::time_type_name     , widen_entry::deprecated },

   157

    { &search_constant_type_c::time_type_name,          &search_constant_type_c::udint_type_name,           &search_constant_type_c::time_type_name     , widen_entry::deprecated },

   158

    { &search_constant_type_c::time_type_name,          &search_constant_type_c::uint_type_name,            &search_constant_type_c::time_type_name     , widen_entry::deprecated },

   159

    { &search_constant_type_c::time_type_name,          &search_constant_type_c::usint_type_name,           &search_constant_type_c::time_type_name     , widen_entry::deprecated },

   160

   161

    { &search_constant_type_c::safetime_type_name,      &search_constant_type_c::lreal_type_name,           &search_constant_type_c::safetime_type_name , widen_entry::ok         },

   162

    { &search_constant_type_c::safetime_type_name,      &search_constant_type_c::real_type_name,            &search_constant_type_c::safetime_type_name , widen_entry::ok         },

   163

    { &search_constant_type_c::safetime_type_name,      &search_constant_type_c::dint_type_name,            &search_constant_type_c::safetime_type_name , widen_entry::ok         },

   164

    { &search_constant_type_c::safetime_type_name,      &search_constant_type_c::int_type_name,             &search_constant_type_c::safetime_type_name , widen_entry::ok         },

   165

    { &search_constant_type_c::safetime_type_name,      &search_constant_type_c::sint_type_name,            &search_constant_type_c::safetime_type_name , widen_entry::ok         },

   166

    { &search_constant_type_c::safetime_type_name,      &search_constant_type_c::ulint_type_name,           &search_constant_type_c::safetime_type_name , widen_entry::ok         },

   167

    { &search_constant_type_c::safetime_type_name,      &search_constant_type_c::udint_type_name,           &search_constant_type_c::safetime_type_name , widen_entry::ok         },

   168

    { &search_constant_type_c::safetime_type_name,      &search_constant_type_c::uint_type_name,            &search_constant_type_c::safetime_type_name , widen_entry::ok         },

   169

    { &search_constant_type_c::safetime_type_name,      &search_constant_type_c::usint_type_name,           &search_constant_type_c::safetime_type_name , widen_entry::ok         },

   170

   171

    { &search_constant_type_c::safetime_type_name,      &search_constant_type_c::safelreal_type_name,       &search_constant_type_c::safetime_type_name , widen_entry::ok         },

   172

    { &search_constant_type_c::safetime_type_name,      &search_constant_type_c::safereal_type_name,        &search_constant_type_c::safetime_type_name , widen_entry::ok         },

   173

    { &search_constant_type_c::safetime_type_name,      &search_constant_type_c::safedint_type_name,        &search_constant_type_c::safetime_type_name , widen_entry::ok         },

   174

    { &search_constant_type_c::safetime_type_name,      &search_constant_type_c::safeint_type_name,         &search_constant_type_c::safetime_type_name , widen_entry::ok         },

   175

    { &search_constant_type_c::safetime_type_name,      &search_constant_type_c::safesint_type_name,        &search_constant_type_c::safetime_type_name , widen_entry::ok         },

   176

    { &search_constant_type_c::safetime_type_name,      &search_constant_type_c::safeulint_type_name,       &search_constant_type_c::safetime_type_name , widen_entry::ok         },

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    { &search_constant_type_c::safetime_type_name,      &search_constant_type_c::safeudint_type_name,       &search_constant_type_c::safetime_type_name , widen_entry::ok         },

   178

    { &search_constant_type_c::safetime_type_name,      &search_constant_type_c::safeuint_type_name,        &search_constant_type_c::safetime_type_name , widen_entry::ok         },

   179

    { &search_constant_type_c::safetime_type_name,      &search_constant_type_c::safeusint_type_name,       &search_constant_type_c::safetime_type_name , widen_entry::ok         },

   180

   181

    { NULL, NULL, NULL, widen_entry::ok },

   182

};

   183

   184

const struct widen_entry widen_DIV_table[] = {

   185

    { &search_constant_type_c::time_type_name,          &search_constant_type_c::lreal_type_name,           &search_constant_type_c::time_type_name     , widen_entry::deprecated },

   186

    { &search_constant_type_c::time_type_name,          &search_constant_type_c::real_type_name,            &search_constant_type_c::time_type_name     , widen_entry::deprecated },

   187

    { &search_constant_type_c::time_type_name,          &search_constant_type_c::dint_type_name,            &search_constant_type_c::time_type_name     , widen_entry::deprecated },

   188

    { &search_constant_type_c::time_type_name,          &search_constant_type_c::int_type_name,             &search_constant_type_c::time_type_name     , widen_entry::deprecated },

   189

    { &search_constant_type_c::time_type_name,          &search_constant_type_c::sint_type_name,            &search_constant_type_c::time_type_name     , widen_entry::deprecated },

   190

    { &search_constant_type_c::time_type_name,          &search_constant_type_c::ulint_type_name,           &search_constant_type_c::time_type_name     , widen_entry::deprecated },

   191

    { &search_constant_type_c::time_type_name,          &search_constant_type_c::udint_type_name,           &search_constant_type_c::time_type_name     , widen_entry::deprecated },

   192

    { &search_constant_type_c::time_type_name,          &search_constant_type_c::uint_type_name,            &search_constant_type_c::time_type_name     , widen_entry::deprecated },

   193

    { &search_constant_type_c::time_type_name,          &search_constant_type_c::usint_type_name,           &search_constant_type_c::time_type_name     , widen_entry::deprecated },

   194

   195

    { &search_constant_type_c::safetime_type_name,      &search_constant_type_c::lreal_type_name,           &search_constant_type_c::safetime_type_name , widen_entry::ok         },

   196

    { &search_constant_type_c::safetime_type_name,      &search_constant_type_c::real_type_name,            &search_constant_type_c::safetime_type_name , widen_entry::ok         },

   197

    { &search_constant_type_c::safetime_type_name,      &search_constant_type_c::dint_type_name,            &search_constant_type_c::safetime_type_name , widen_entry::ok         },

   198

    { &search_constant_type_c::safetime_type_name,      &search_constant_type_c::int_type_name,             &search_constant_type_c::safetime_type_name , widen_entry::ok         },

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    { &search_constant_type_c::safetime_type_name,      &search_constant_type_c::sint_type_name,            &search_constant_type_c::safetime_type_name , widen_entry::ok         },

   200

    { &search_constant_type_c::safetime_type_name,      &search_constant_type_c::ulint_type_name,           &search_constant_type_c::safetime_type_name , widen_entry::ok         },

   201

    { &search_constant_type_c::safetime_type_name,      &search_constant_type_c::udint_type_name,           &search_constant_type_c::safetime_type_name , widen_entry::ok         },

   202

    { &search_constant_type_c::safetime_type_name,      &search_constant_type_c::uint_type_name,            &search_constant_type_c::safetime_type_name , widen_entry::ok         },

   203

    { &search_constant_type_c::safetime_type_name,      &search_constant_type_c::usint_type_name,           &search_constant_type_c::safetime_type_name , widen_entry::ok         },

   204

   205

    { &search_constant_type_c::safetime_type_name,      &search_constant_type_c::safelreal_type_name,       &search_constant_type_c::safetime_type_name , widen_entry::ok         },

   206

    { &search_constant_type_c::safetime_type_name,      &search_constant_type_c::safereal_type_name,        &search_constant_type_c::safetime_type_name , widen_entry::ok         },

   207

    { &search_constant_type_c::safetime_type_name,      &search_constant_type_c::safedint_type_name,        &search_constant_type_c::safetime_type_name , widen_entry::ok         },

   208

    { &search_constant_type_c::safetime_type_name,      &search_constant_type_c::safeint_type_name,         &search_constant_type_c::safetime_type_name , widen_entry::ok         },

   209

    { &search_constant_type_c::safetime_type_name,      &search_constant_type_c::safesint_type_name,        &search_constant_type_c::safetime_type_name , widen_entry::ok         },

   210

    { &search_constant_type_c::safetime_type_name,      &search_constant_type_c::safeulint_type_name,       &search_constant_type_c::safetime_type_name , widen_entry::ok         },

   211

    { &search_constant_type_c::safetime_type_name,      &search_constant_type_c::safeudint_type_name,       &search_constant_type_c::safetime_type_name , widen_entry::ok         },

   212

    { &search_constant_type_c::safetime_type_name,      &search_constant_type_c::safeuint_type_name,        &search_constant_type_c::safetime_type_name , widen_entry::ok         },

   213

    { &search_constant_type_c::safetime_type_name,      &search_constant_type_c::safeusint_type_name,       &search_constant_type_c::safetime_type_name , widen_entry::ok         },

   214

   215

    { NULL, NULL, NULL, widen_entry::ok },

   216

 };

   217

   218

   219

   220

/* Search for a datatype inside a candidate_datatypes list.

   221

 * Returns: position of datatype in the list, or -1 if not found.

   222

 */

   223

int search_in_candidate_datatype_list(symbol_c *datatype, std::vector <symbol_c *> candidate_datatypes) {

   224

	if (NULL == datatype) 

   225

		return -1;

   226

   227

	for(unsigned int i = 0; i < candidate_datatypes.size(); i++)

   228

		if (is_type_equal(datatype, candidate_datatypes[i]))

   229

			return i;

   230

	/* Not found ! */

   231

	return -1;

   232

}

   233

   234

   235

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   238

   239

   240

/* Intersect two candidate_datatype_lists.

   241

 * Remove from list1 (origin, dest.) all elements that are not found in list2 (with).

   242

 * In essence, list1 will contain the result of the intersection of list1 with list2.

   243

 * In other words, modify list1 so it only contains the elelements that are simultaneously in list1 and list2!

   244

 */

   245

void intersect_candidate_datatype_list(symbol_c *list1 /*origin, dest.*/, symbol_c *list2 /*with*/) {

   246

	if ((NULL == list1) || (NULL == list2))

   247

		/* In principle, we should never call it with NULL values. Best to abort the compiler just in case! */

   248

		return;

   249

   250

	for(std::vector<symbol_c *>::iterator i = list1->candidate_datatypes.begin(); i < list1->candidate_datatypes.end(); ) {

   251

		/* Note that we do _not_ increment i in the for() loop!

   252

		 * When we erase an element from position i, a new element will take it's place, that must also be tested! 

   253

		 */

   254

		if (search_in_candidate_datatype_list(*i, list2->candidate_datatypes) < 0)

   255

			/* remove this element! This will change the value of candidate_datatypes.size() */

   256

			list1->candidate_datatypes.erase(i);

   257

		else i++;

   258

	}

   259

}

   260

   261

   262

   263

   264

/* intersect the candidate_datatype lists of all prev_il_intructions, and set the local candidate_datatype list to the result! */

   265

void intersect_prev_candidate_datatype_lists(il_instruction_c *symbol) {

   266

	if (symbol->prev_il_instruction.empty())

   267

		return;

   268

   269

	symbol->candidate_datatypes = symbol->prev_il_instruction[0]->candidate_datatypes;

   270

	for (unsigned int i = 1; i < symbol->prev_il_instruction.size(); i++) {

   271

		intersect_candidate_datatype_list(symbol /*origin, dest.*/, symbol->prev_il_instruction[i] /*with*/);

   272

	}  

   273

}

   274

   275

   276

   277

   278

/* A helper function... */

   279

bool is_ANY_ELEMENTARY_type(symbol_c *type_symbol) {

   280

  if (type_symbol == NULL) {return false;}

   281

  return is_ANY_MAGNITUDE_type(type_symbol)

   282

      || is_ANY_BIT_type      (type_symbol)

   283

      || is_ANY_STRING_type   (type_symbol)

   284

      || is_ANY_DATE_type     (type_symbol);

   285

}

   286

   287

/* A helper function... */

   288

bool is_ANY_SAFEELEMENTARY_type(symbol_c *type_symbol) {

   289

  if (type_symbol == NULL) {return false;}

   290

  return is_ANY_SAFEMAGNITUDE_type(type_symbol)

   291

      || is_ANY_SAFEBIT_type      (type_symbol)

   292

      || is_ANY_SAFESTRING_type   (type_symbol)

   293

      || is_ANY_SAFEDATE_type     (type_symbol);

   294

}

   295

   296

/* A helper function... */

   297

bool is_ANY_ELEMENTARY_compatible(symbol_c *type_symbol) {

   298

  if (type_symbol == NULL) {return false;}

   299

  /* NOTE: doing

   300

   *          return is_ANY_SAFEELEMENTARY_type() || is_ANY_ELEMENTARY_type()

   301

   *       is incorrect, as the literals would never be considered compatible...

   302

   */

   303

  return is_ANY_MAGNITUDE_compatible(type_symbol)

   304

      || is_ANY_BIT_compatible      (type_symbol)

   305

      || is_ANY_STRING_compatible   (type_symbol)

   306

      || is_ANY_DATE_compatible     (type_symbol);

   307

}

   308

   309

   310

/* A helper function... */

   311

bool is_ANY_MAGNITUDE_type(symbol_c *type_symbol) {

   312

  if (type_symbol == NULL) {return false;}

   313

  if (typeid(*type_symbol) == typeid(time_type_name_c)) {return true;}

   314

  return is_ANY_NUM_type(type_symbol);

   315

}

   316

   317

/* A helper function... */

   318

bool is_ANY_signed_MAGNITUDE_type(symbol_c *type_symbol) {

   319

  if (type_symbol == NULL) {return false;}

   320

  if (typeid(*type_symbol) == typeid(time_type_name_c)) {return true;}

   321

  return is_ANY_signed_NUM_type(type_symbol);

   322

}

   323

   324

/* A helper function... */

   325

bool is_ANY_SAFEMAGNITUDE_type(symbol_c *type_symbol) {

   326

  if (type_symbol == NULL) {return false;}

   327

  if (typeid(*type_symbol) == typeid(safetime_type_name_c)) {return true;}

   328

  return is_ANY_SAFENUM_type(type_symbol);

   329

}

   330

   331

/* A helper function... */

   332

bool is_ANY_signed_SAFEMAGNITUDE_type(symbol_c *type_symbol) {

   333

  if (type_symbol == NULL) {return false;}

   334

  if (typeid(*type_symbol) == typeid(safetime_type_name_c)) {return true;}

   335

  return is_ANY_signed_SAFENUM_type(type_symbol);

   336

}

   337

   338

/* A helper function... */

   339

bool is_ANY_MAGNITUDE_compatible(symbol_c *type_symbol) {

   340

  if (type_symbol == NULL) {return false;}

   341

  if (is_ANY_MAGNITUDE_type    (type_symbol))              {return true;}

   342

  if (is_ANY_SAFEMAGNITUDE_type(type_symbol))              {return true;}

   343

  return is_ANY_NUM_compatible(type_symbol);

   344

}

   345

   346

/* A helper function... */

   347

bool is_ANY_signed_MAGNITUDE_compatible(symbol_c *type_symbol) {

   348

  if (type_symbol == NULL) {return false;}

   349

  if (is_ANY_signed_MAGNITUDE_type    (type_symbol))       {return true;}

   350

  if (is_ANY_signed_SAFEMAGNITUDE_type(type_symbol))       {return true;}

   351

  return is_ANY_signed_NUM_compatible(type_symbol);

   352

}

   353

   354

/* A helper function... */

   355

bool is_ANY_NUM_type(symbol_c *type_symbol) {

   356

  if (type_symbol == NULL) {return false;}

   357

  if (is_ANY_REAL_type(type_symbol))                       {return true;}

   358

  if (is_ANY_INT_type(type_symbol))                        {return true;}

   359

  return false;

   360

}

   361

   362

/* A helper function... */

   363

bool is_ANY_signed_NUM_type(symbol_c *type_symbol) {

   364

  if (type_symbol == NULL) {return false;}

   365

  if (is_ANY_REAL_type(type_symbol))                       {return true;}

   366

  if (is_ANY_signed_INT_type(type_symbol))                 {return true;}

   367

  return false;

   368

}

   369

   370

/* A helper function... */

   371

bool is_ANY_SAFENUM_type(symbol_c *type_symbol) {

   372

  if (type_symbol == NULL) {return false;}

   373

  return is_ANY_SAFEREAL_type(type_symbol)

   374

      || is_ANY_SAFEINT_type (type_symbol);

   375

}

   376

   377

/* A helper function... */

   378

bool is_ANY_signed_SAFENUM_type(symbol_c *type_symbol) {

   379

  if (type_symbol == NULL) {return false;}

   380

  return is_ANY_SAFEREAL_type(type_symbol)

   381

      || is_ANY_signed_SAFEINT_type (type_symbol);

   382

}

   383

   384

/* A helper function... */

   385

bool is_ANY_NUM_compatible(symbol_c *type_symbol) {

   386

  if (type_symbol == NULL) {return false;}

   387

  if (is_ANY_REAL_compatible(type_symbol))                       {return true;}

   388

  if (is_ANY_INT_compatible(type_symbol))                        {return true;}

   389

  return false;

   390

}

   391

   392

/* A helper function... */

   393

bool is_ANY_signed_NUM_compatible(symbol_c *type_symbol) {

   394

  if (type_symbol == NULL) {return false;}

   395

  if (is_ANY_REAL_compatible(type_symbol))                       {return true;}

   396

  if (is_ANY_signed_INT_compatible(type_symbol))                 {return true;}

   397

  return false;

   398

}

   399

   400

/* A helper function... */

   401

bool is_ANY_DATE_type(symbol_c *type_symbol) {

   402

  if (type_symbol == NULL) {return false;}

   403

  if (typeid(*type_symbol) == typeid(date_type_name_c)) {return true;}

   404

  if (typeid(*type_symbol) == typeid(tod_type_name_c))  {return true;}

   405

  if (typeid(*type_symbol) == typeid(dt_type_name_c))   {return true;}

   406

  return false;

   407

}

   408

   409

/* A helper function... */

   410

bool is_ANY_SAFEDATE_type(symbol_c *type_symbol) {

   411

  if (type_symbol == NULL) {return false;}

   412

  if (typeid(*type_symbol) == typeid(safedate_type_name_c)) {return true;}

   413

  if (typeid(*type_symbol) == typeid(safetod_type_name_c))  {return true;}

   414

  if (typeid(*type_symbol) == typeid(safedt_type_name_c))   {return true;}

   415

  return false;

   416

}

   417

   418

/* A helper function... */

   419

bool is_ANY_DATE_compatible(symbol_c *type_symbol) {

   420

  if (type_symbol == NULL) {return false;}

   421

  if (is_ANY_DATE_type    (type_symbol))              {return true;}

   422

  if (is_ANY_SAFEDATE_type(type_symbol))              {return true;}

   423

  return false;

   424

}

   425

   426

/* A helper function... */

   427

bool is_ANY_STRING_type(symbol_c *type_symbol) {

   428

  if (type_symbol == NULL) {return false;}

   429

  if (typeid(*type_symbol) == typeid(string_type_name_c)) {return true;}

   430

  if (typeid(*type_symbol) == typeid(wstring_type_name_c)) {return true;}

   431

  return false;

   432

}

   433

   434

/* A helper function... */

   435

bool is_ANY_SAFESTRING_type(symbol_c *type_symbol) {

   436

  if (type_symbol == NULL) {return false;}

   437

  if (typeid(*type_symbol) == typeid(safestring_type_name_c)) {return true;}

   438

  if (typeid(*type_symbol) == typeid(safewstring_type_name_c)) {return true;}

   439

  return false;

   440

}

   441

   442

/* A helper function... */

   443

bool is_ANY_STRING_compatible(symbol_c *type_symbol) {

   444

  if (type_symbol == NULL) {return false;}

   445

  if (is_ANY_STRING_type    (type_symbol))              {return true;}

   446

  if (is_ANY_SAFESTRING_type(type_symbol))              {return true;}

   447

  return false;

   448

}

   449

   450

/* A helper function... */

   451

bool is_ANY_INT_type(symbol_c *type_symbol) {

   452

  if (type_symbol == NULL) {return false;}

   453

  if (typeid(*type_symbol) == typeid(sint_type_name_c))  {return true;}

   454

  if (typeid(*type_symbol) == typeid(int_type_name_c))   {return true;}

   455

  if (typeid(*type_symbol) == typeid(dint_type_name_c))  {return true;}

   456

  if (typeid(*type_symbol) == typeid(lint_type_name_c))  {return true;}

   457

  if (typeid(*type_symbol) == typeid(usint_type_name_c)) {return true;}

   458

  if (typeid(*type_symbol) == typeid(uint_type_name_c))  {return true;}

   459

  if (typeid(*type_symbol) == typeid(udint_type_name_c)) {return true;}

   460

  if (typeid(*type_symbol) == typeid(ulint_type_name_c)) {return true;}

   461

  return false;

   462

}

   463

   464

/* A helper function... */

   465

bool is_ANY_signed_INT_type(symbol_c *type_symbol) {

   466

  if (type_symbol == NULL) {return false;}

   467

  if (typeid(*type_symbol) == typeid(sint_type_name_c))  {return true;}

   468

  if (typeid(*type_symbol) == typeid(int_type_name_c))   {return true;}

   469

  if (typeid(*type_symbol) == typeid(dint_type_name_c))  {return true;}

   470

  if (typeid(*type_symbol) == typeid(lint_type_name_c))  {return true;}

   471

  return false;

   472

}

   473

   474

/* A helper function... */

   475

bool is_ANY_signed_SAFEINT_type(symbol_c *type_symbol) {

   476

  if (type_symbol == NULL) {return false;}

   477

  if (typeid(*type_symbol) == typeid(safesint_type_name_c))  {return true;}

   478

  if (typeid(*type_symbol) == typeid(safeint_type_name_c))   {return true;}

   479

  if (typeid(*type_symbol) == typeid(safedint_type_name_c))  {return true;}

   480

  if (typeid(*type_symbol) == typeid(safelint_type_name_c))  {return true;}

   481

  return false;

   482

}

   483

   484

/* A helper function... */

   485

bool is_ANY_SAFEINT_type(symbol_c *type_symbol) {

   486

  if (type_symbol == NULL) {return false;}

   487

  if (typeid(*type_symbol) == typeid(safesint_type_name_c))  {return true;}

   488

  if (typeid(*type_symbol) == typeid(safeint_type_name_c))   {return true;}

   489

  if (typeid(*type_symbol) == typeid(safedint_type_name_c))  {return true;}

   490

  if (typeid(*type_symbol) == typeid(safelint_type_name_c))  {return true;}

   491

  if (typeid(*type_symbol) == typeid(safeusint_type_name_c)) {return true;}

   492

  if (typeid(*type_symbol) == typeid(safeuint_type_name_c))  {return true;}

   493

  if (typeid(*type_symbol) == typeid(safeudint_type_name_c)) {return true;}

   494

  if (typeid(*type_symbol) == typeid(safeulint_type_name_c)) {return true;}

   495

  return false;

   496

}

   497

   498

/* A helper function... */

   499

bool is_ANY_signed_INT_compatible(symbol_c *type_symbol) {

   500

  if (type_symbol == NULL) {return false;}

   501

  if (is_ANY_signed_INT_type    (type_symbol))              {return true;}

   502

  if (is_ANY_signed_SAFEINT_type(type_symbol))              {return true;}

   503

  return false;

   504

}

   505

   506

/* A helper function... */