msousa@417: /*
msousa@417:  *  matiec - a compiler for the programming languages defined in IEC 61131-3
msousa@417:  *
msousa@417:  *  Copyright (C) 2009-2012  Mario de Sousa (msousa@fe.up.pt)
msousa@417:  *  Copyright (C) 2012       Manuele Conti  (conti.ma@alice.it)
msousa@417:  *
msousa@417:  *  This program is free software: you can redistribute it and/or modify
msousa@417:  *  it under the terms of the GNU General Public License as published by
msousa@417:  *  the Free Software Foundation, either version 3 of the License, or
msousa@417:  *  (at your option) any later version.
msousa@417:  *
msousa@417:  *  This program is distributed in the hope that it will be useful,
msousa@417:  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
msousa@417:  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
msousa@417:  *  GNU General Public License for more details.
msousa@417:  *
msousa@417:  *  You should have received a copy of the GNU General Public License
msousa@417:  *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
msousa@417:  *
msousa@417:  *
msousa@417:  * This code is made available on the understanding that it will not be
msousa@417:  * used in safety-critical situations without a full and competent review.
msousa@417:  */
msousa@417: 
msousa@417: #include "datatype_functions.hh"
msousa@417: #include "../absyntax_utils/absyntax_utils.hh"
msousa@457: #include <vector>
msousa@457: // #include <algorithm>
msousa@417: 
msousa@434: 
msousa@434: 
msousa@434: 
msousa@434: 
msousa@434: elementary_type_c *elementary_type_c::singleton = NULL;
msousa@434: 
msousa@434: const char *elementary_type_c::to_string(symbol_c *symbol) {
msousa@434:   if (NULL == singleton)    singleton = new elementary_type_c;
msousa@434:   if (NULL == singleton)    ERROR;
msousa@434:   const char *res           = (const char *)symbol->accept(*singleton);
msousa@434:   if (NULL == res) {
msousa@434: 	  int i = 1;
msousa@434:   }
msousa@434:   return res;
msousa@434: }
msousa@434: 
msousa@434: 
msousa@434: 
msousa@434: 
msousa@434: 
msousa@417: /*
msousa@417:  * 2.5.1.5.6 Functions of time data types
msousa@417:  * Table 30 - page 64
msousa@417:  */
msousa@417: 
msousa@417: const struct widen_entry widen_ADD_table[] = {
msousa@417:     { &search_constant_type_c::time_type_name,          &search_constant_type_c::time_type_name,            &search_constant_type_c::time_type_name     },
msousa@417:     { &search_constant_type_c::tod_type_name,           &search_constant_type_c::tod_type_name,             &search_constant_type_c::tod_type_name      },
msousa@417:     { &search_constant_type_c::dt_type_name,            &search_constant_type_c::dt_type_name,              &search_constant_type_c::dt_type_name       },
msousa@417:     { &search_constant_type_c::safetime_type_name,      &search_constant_type_c::safetime_type_name,        &search_constant_type_c::safetime_type_name },
msousa@417:     { &search_constant_type_c::safetod_type_name,       &search_constant_type_c::safetod_type_name,         &search_constant_type_c::safetod_type_name  },
msousa@417:     { &search_constant_type_c::safedt_type_name,        &search_constant_type_c::safedt_type_name,          &search_constant_type_c::safedt_type_name   },
msousa@417:     { &search_constant_type_c::tod_type_name,           &search_constant_type_c::time_type_name,            &search_constant_type_c::tod_type_name      },
msousa@417:     { &search_constant_type_c::safetod_type_name,       &search_constant_type_c::time_type_name,            &search_constant_type_c::tod_type_name      },
msousa@417:     { &search_constant_type_c::tod_type_name,           &search_constant_type_c::safetime_type_name,        &search_constant_type_c::tod_type_name      },
msousa@417:     { &search_constant_type_c::safetod_type_name,       &search_constant_type_c::safetime_type_name,        &search_constant_type_c::safetod_type_name  },
msousa@417:     { &search_constant_type_c::dt_type_name,            &search_constant_type_c::time_type_name,            &search_constant_type_c::dt_type_name       },
msousa@417:     { &search_constant_type_c::safedt_type_name,        &search_constant_type_c::time_type_name,            &search_constant_type_c::dt_type_name       },
msousa@417:     { &search_constant_type_c::dt_type_name,            &search_constant_type_c::safetime_type_name,        &search_constant_type_c::dt_type_name       },
msousa@417:     { &search_constant_type_c::safedt_type_name,        &search_constant_type_c::safetime_type_name,        &search_constant_type_c::safedt_type_name   },
msousa@417:     { NULL, NULL, NULL },
msousa@417: };
msousa@417: 
msousa@417: 
msousa@417: const struct widen_entry widen_SUB_table[] = {
msousa@457:     { &search_constant_type_c::time_type_name,          &search_constant_type_c::time_type_name,            &search_constant_type_c::time_type_name     },
msousa@457:     { &search_constant_type_c::tod_type_name,           &search_constant_type_c::tod_type_name,             &search_constant_type_c::tod_type_name      },
msousa@457:     { &search_constant_type_c::dt_type_name,            &search_constant_type_c::dt_type_name,              &search_constant_type_c::dt_type_name       },
msousa@457:     { &search_constant_type_c::safetime_type_name,      &search_constant_type_c::safetime_type_name,        &search_constant_type_c::safetime_type_name },
msousa@457:     { &search_constant_type_c::safetod_type_name,       &search_constant_type_c::safetod_type_name,         &search_constant_type_c::safetod_type_name  },
msousa@457:     { &search_constant_type_c::safedt_type_name,        &search_constant_type_c::safedt_type_name,          &search_constant_type_c::safedt_type_name   },
msousa@457: 
msousa@457:     { &search_constant_type_c::tod_type_name,           &search_constant_type_c::time_type_name,            &search_constant_type_c::tod_type_name      },
msousa@417:     { &search_constant_type_c::safetod_type_name,       &search_constant_type_c::time_type_name,            &search_constant_type_c::tod_type_name      },
msousa@417:     { &search_constant_type_c::tod_type_name,           &search_constant_type_c::safetime_type_name,        &search_constant_type_c::tod_type_name      },
msousa@417:     { &search_constant_type_c::safetod_type_name,       &search_constant_type_c::safetime_type_name,        &search_constant_type_c::safetod_type_name  },
msousa@417:     { &search_constant_type_c::dt_type_name,            &search_constant_type_c::time_type_name,            &search_constant_type_c::dt_type_name       },
msousa@417:     { &search_constant_type_c::safedt_type_name,        &search_constant_type_c::time_type_name,            &search_constant_type_c::dt_type_name       },
msousa@417:     { &search_constant_type_c::dt_type_name,            &search_constant_type_c::safetime_type_name,        &search_constant_type_c::dt_type_name       },
msousa@417:     { &search_constant_type_c::safedt_type_name,        &search_constant_type_c::safetime_type_name,        &search_constant_type_c::safedt_type_name   },
msousa@417:     { &search_constant_type_c::tod_type_name,           &search_constant_type_c::tod_type_name,             &search_constant_type_c::time_type_name     },
msousa@417:     { &search_constant_type_c::safetod_type_name,       &search_constant_type_c::tod_type_name,             &search_constant_type_c::time_type_name     },
msousa@417:     { &search_constant_type_c::tod_type_name,           &search_constant_type_c::safetod_type_name,         &search_constant_type_c::time_type_name     },
msousa@417:     { &search_constant_type_c::safetod_type_name,       &search_constant_type_c::safetod_type_name,         &search_constant_type_c::safetime_type_name },
msousa@417:     { &search_constant_type_c::date_type_name,          &search_constant_type_c::date_type_name,            &search_constant_type_c::time_type_name     },
msousa@417:     { &search_constant_type_c::safedate_type_name,      &search_constant_type_c::date_type_name,            &search_constant_type_c::time_type_name     },
msousa@417:     { &search_constant_type_c::date_type_name,          &search_constant_type_c::safedate_type_name,        &search_constant_type_c::time_type_name     },
msousa@417:     { &search_constant_type_c::safedate_type_name,      &search_constant_type_c::safedate_type_name,        &search_constant_type_c::safetime_type_name },
msousa@417:     { &search_constant_type_c::dt_type_name,            &search_constant_type_c::dt_type_name,              &search_constant_type_c::time_type_name     },
msousa@417:     { &search_constant_type_c::safedt_type_name,        &search_constant_type_c::dt_type_name,              &search_constant_type_c::time_type_name     },
msousa@417:     { &search_constant_type_c::dt_type_name,            &search_constant_type_c::safedt_type_name,          &search_constant_type_c::time_type_name     },
msousa@417:     { &search_constant_type_c::safedt_type_name,        &search_constant_type_c::safedt_type_name,          &search_constant_type_c::safetime_type_name },
msousa@417:     { NULL, NULL, NULL },
msousa@417: };
msousa@417: 
msousa@417: const struct widen_entry widen_MUL_table[] = {
msousa@417:     { &search_constant_type_c::time_type_name,          &search_constant_type_c::lreal_type_name,           &search_constant_type_c::time_type_name     },
msousa@417:     { &search_constant_type_c::time_type_name,          &search_constant_type_c::real_type_name,            &search_constant_type_c::time_type_name     },
msousa@417:     { &search_constant_type_c::time_type_name,          &search_constant_type_c::dint_type_name,            &search_constant_type_c::time_type_name     },
msousa@417:     { &search_constant_type_c::time_type_name,          &search_constant_type_c::int_type_name,             &search_constant_type_c::time_type_name     },
msousa@417:     { &search_constant_type_c::time_type_name,          &search_constant_type_c::sint_type_name,            &search_constant_type_c::time_type_name     },
msousa@417:     { &search_constant_type_c::time_type_name,          &search_constant_type_c::ulint_type_name,           &search_constant_type_c::time_type_name     },
msousa@417:     { &search_constant_type_c::time_type_name,          &search_constant_type_c::udint_type_name,           &search_constant_type_c::time_type_name     },
msousa@417:     { &search_constant_type_c::time_type_name,          &search_constant_type_c::uint_type_name,            &search_constant_type_c::time_type_name     },
msousa@417:     { &search_constant_type_c::time_type_name,          &search_constant_type_c::usint_type_name,           &search_constant_type_c::time_type_name     },
msousa@417: 
msousa@417:     { &search_constant_type_c::safetime_type_name,      &search_constant_type_c::lreal_type_name,           &search_constant_type_c::safetime_type_name },
msousa@417:     { &search_constant_type_c::safetime_type_name,      &search_constant_type_c::real_type_name,            &search_constant_type_c::safetime_type_name },
msousa@417:     { &search_constant_type_c::safetime_type_name,      &search_constant_type_c::dint_type_name,            &search_constant_type_c::safetime_type_name },
msousa@417:     { &search_constant_type_c::safetime_type_name,      &search_constant_type_c::int_type_name,             &search_constant_type_c::safetime_type_name },
msousa@417:     { &search_constant_type_c::safetime_type_name,      &search_constant_type_c::sint_type_name,            &search_constant_type_c::safetime_type_name },
msousa@417:     { &search_constant_type_c::safetime_type_name,      &search_constant_type_c::ulint_type_name,           &search_constant_type_c::safetime_type_name },
msousa@417:     { &search_constant_type_c::safetime_type_name,      &search_constant_type_c::udint_type_name,           &search_constant_type_c::safetime_type_name },
msousa@417:     { &search_constant_type_c::safetime_type_name,      &search_constant_type_c::uint_type_name,            &search_constant_type_c::safetime_type_name },
msousa@417:     { &search_constant_type_c::safetime_type_name,      &search_constant_type_c::usint_type_name,           &search_constant_type_c::safetime_type_name },
msousa@417: 
msousa@417:     { &search_constant_type_c::safetime_type_name,      &search_constant_type_c::safelreal_type_name,       &search_constant_type_c::safetime_type_name },
msousa@417:     { &search_constant_type_c::safetime_type_name,      &search_constant_type_c::safereal_type_name,        &search_constant_type_c::safetime_type_name },
msousa@417:     { &search_constant_type_c::safetime_type_name,      &search_constant_type_c::safedint_type_name,        &search_constant_type_c::safetime_type_name },
msousa@417:     { &search_constant_type_c::safetime_type_name,      &search_constant_type_c::safeint_type_name,         &search_constant_type_c::safetime_type_name },
msousa@417:     { &search_constant_type_c::safetime_type_name,      &search_constant_type_c::safesint_type_name,        &search_constant_type_c::safetime_type_name },
msousa@417:     { &search_constant_type_c::safetime_type_name,      &search_constant_type_c::safeulint_type_name,       &search_constant_type_c::safetime_type_name },
msousa@417:     { &search_constant_type_c::safetime_type_name,      &search_constant_type_c::safeudint_type_name,       &search_constant_type_c::safetime_type_name },
msousa@417:     { &search_constant_type_c::safetime_type_name,      &search_constant_type_c::safeuint_type_name,        &search_constant_type_c::safetime_type_name },
msousa@417:     { &search_constant_type_c::safetime_type_name,      &search_constant_type_c::safeusint_type_name,       &search_constant_type_c::safetime_type_name },
msousa@417: 
msousa@417:     { NULL, NULL, NULL },
msousa@417: };
msousa@417: 
msousa@417: const struct widen_entry widen_DIV_table[] = {
msousa@457:     { &search_constant_type_c::time_type_name,          &search_constant_type_c::lreal_type_name,           &search_constant_type_c::time_type_name     },
msousa@417:     { &search_constant_type_c::time_type_name,          &search_constant_type_c::real_type_name,            &search_constant_type_c::time_type_name     },
msousa@417:     { &search_constant_type_c::time_type_name,          &search_constant_type_c::dint_type_name,            &search_constant_type_c::time_type_name     },
msousa@417:     { &search_constant_type_c::time_type_name,          &search_constant_type_c::int_type_name,             &search_constant_type_c::time_type_name     },
msousa@417:     { &search_constant_type_c::time_type_name,          &search_constant_type_c::sint_type_name,            &search_constant_type_c::time_type_name     },
msousa@417:     { &search_constant_type_c::time_type_name,          &search_constant_type_c::ulint_type_name,           &search_constant_type_c::time_type_name     },
msousa@417:     { &search_constant_type_c::time_type_name,          &search_constant_type_c::udint_type_name,           &search_constant_type_c::time_type_name     },
msousa@417:     { &search_constant_type_c::time_type_name,          &search_constant_type_c::uint_type_name,            &search_constant_type_c::time_type_name     },
msousa@417:     { &search_constant_type_c::time_type_name,          &search_constant_type_c::usint_type_name,           &search_constant_type_c::time_type_name     },
msousa@417: 
msousa@417:     { &search_constant_type_c::safetime_type_name,      &search_constant_type_c::lreal_type_name,           &search_constant_type_c::safetime_type_name },
msousa@417:     { &search_constant_type_c::safetime_type_name,      &search_constant_type_c::real_type_name,            &search_constant_type_c::safetime_type_name },
msousa@417:     { &search_constant_type_c::safetime_type_name,      &search_constant_type_c::dint_type_name,            &search_constant_type_c::safetime_type_name },
msousa@417:     { &search_constant_type_c::safetime_type_name,      &search_constant_type_c::int_type_name,             &search_constant_type_c::safetime_type_name },
msousa@417:     { &search_constant_type_c::safetime_type_name,      &search_constant_type_c::sint_type_name,            &search_constant_type_c::safetime_type_name },
msousa@417:     { &search_constant_type_c::safetime_type_name,      &search_constant_type_c::ulint_type_name,           &search_constant_type_c::safetime_type_name },
msousa@417:     { &search_constant_type_c::safetime_type_name,      &search_constant_type_c::udint_type_name,           &search_constant_type_c::safetime_type_name },
msousa@417:     { &search_constant_type_c::safetime_type_name,      &search_constant_type_c::uint_type_name,            &search_constant_type_c::safetime_type_name },
msousa@417:     { &search_constant_type_c::safetime_type_name,      &search_constant_type_c::usint_type_name,           &search_constant_type_c::safetime_type_name },
msousa@417: 
msousa@417:     { &search_constant_type_c::safetime_type_name,      &search_constant_type_c::safelreal_type_name,       &search_constant_type_c::safetime_type_name },
msousa@417:     { &search_constant_type_c::safetime_type_name,      &search_constant_type_c::safereal_type_name,        &search_constant_type_c::safetime_type_name },
msousa@417:     { &search_constant_type_c::safetime_type_name,      &search_constant_type_c::safedint_type_name,        &search_constant_type_c::safetime_type_name },
msousa@417:     { &search_constant_type_c::safetime_type_name,      &search_constant_type_c::safeint_type_name,         &search_constant_type_c::safetime_type_name },
msousa@417:     { &search_constant_type_c::safetime_type_name,      &search_constant_type_c::safesint_type_name,        &search_constant_type_c::safetime_type_name },
msousa@417:     { &search_constant_type_c::safetime_type_name,      &search_constant_type_c::safeulint_type_name,       &search_constant_type_c::safetime_type_name },
msousa@417:     { &search_constant_type_c::safetime_type_name,      &search_constant_type_c::safeudint_type_name,       &search_constant_type_c::safetime_type_name },
msousa@417:     { &search_constant_type_c::safetime_type_name,      &search_constant_type_c::safeuint_type_name,        &search_constant_type_c::safetime_type_name },
msousa@417:     { &search_constant_type_c::safetime_type_name,      &search_constant_type_c::safeusint_type_name,       &search_constant_type_c::safetime_type_name },
msousa@417: 
msousa@417:     { NULL, NULL, NULL },
msousa@417: };
msousa@417: 
msousa@425: /* Search for a datatype inside a candidate_datatypes list.
msousa@425:  * Returns: position of datatype in the list, or -1 if not found.
msousa@417:  */
conti@445: int search_in_candidate_datatype_list(symbol_c *datatype, std::vector <symbol_c *> candidate_datatypes) {
msousa@443: 	if (NULL == datatype) 
msousa@443: 		return -1;
msousa@443: 
msousa@425: 	for(unsigned int i = 0; i < candidate_datatypes.size(); i++)
msousa@425: 		if (is_type_equal(datatype, candidate_datatypes[i]))
msousa@425: 			return i;
msousa@425: 	/* Not found ! */
msousa@425: 	return -1;
msousa@425: }
msousa@425: 
msousa@417: 
msousa@443: 
msousa@443: 
msousa@443: 
msousa@443: /* Copy the elements in the candidate_datatype_list in one symbol (from)
msousa@443:  * into the candidate_datatype_list of another symbol (to)
msousa@443:  */
msousa@443: void copy_candidate_datatype_list(symbol_c *from, symbol_c *to) {
msousa@443: 	if ((NULL == from) || (NULL == to))
msousa@443: 		return;
msousa@447: 	for(unsigned int i = 0; i < from->candidate_datatypes.size(); i++)
msousa@447: 		to->candidate_datatypes.push_back(from->candidate_datatypes[i]);
msousa@447: 	/* for some reason, the following alternative implementation results in a segmentation fault! I am not going to bother with this for now! */
msousa@447: // 	std::copy(from->candidate_datatypes.begin(), from->candidate_datatypes.end(), to->candidate_datatypes.begin());
msousa@443: }
msousa@443: 
msousa@443: 
msousa@443: 
msousa@457: /* Intersect two candidate_datatype_lists.
msousa@457:  * Remove from list1 (origin, dest.) all elements that are not found in list2 (with).
msousa@457:  * In essence, list1 will contain the result of the intersection of list1 with list2.
msousa@457:  * In other words, modify list1 so it only contains the elelements that are simultaneously in list1 and list2!
msousa@457:  */
msousa@457: void intersect_candidate_datatype_list(symbol_c *list1 /*origin, dest.*/, symbol_c *list2 /*with*/) {
msousa@457: 	if ((NULL == list1) || (NULL == list2))
msousa@457: 		/* In principle, we should never call it with NULL values. Best to abort the compiler just in case! */
msousa@457: 		return;
msousa@457: 
msousa@457: 	for(std::vector<symbol_c *>::iterator i = list1->candidate_datatypes.begin(); i < list1->candidate_datatypes.end(); ) {
msousa@457: 		/* Note that we do _not_ increment i in the for() loop!
msousa@457: 		 * When we erase an element from position i, a new element will take it's place, that must also be tested! 
msousa@457: 		 */
msousa@457: 		if (search_in_candidate_datatype_list(*i, list2->candidate_datatypes) < 0)
msousa@457: 			/* remove this element! This will change the value of candidate_datatypes.size() */
msousa@457: 			list1->candidate_datatypes.erase(i);
msousa@457: 		else i++;
msousa@457: 	}
msousa@457: }
msousa@457: 
msousa@443: 
msousa@443: 
msousa@417: /* A helper function... */
msousa@417: bool is_ANY_ELEMENTARY_type(symbol_c *type_symbol) {
msousa@417:   if (type_symbol == NULL) {return false;}
msousa@417:   return is_ANY_MAGNITUDE_type(type_symbol)
msousa@417:       || is_ANY_BIT_type      (type_symbol)
msousa@417:       || is_ANY_STRING_type   (type_symbol)
msousa@417:       || is_ANY_DATE_type     (type_symbol);
msousa@417: }
msousa@417: 
msousa@417: /* A helper function... */
msousa@417: bool is_ANY_SAFEELEMENTARY_type(symbol_c *type_symbol) {
msousa@417:   if (type_symbol == NULL) {return false;}
msousa@417:   return is_ANY_SAFEMAGNITUDE_type(type_symbol)
msousa@417:       || is_ANY_SAFEBIT_type      (type_symbol)
msousa@417:       || is_ANY_SAFESTRING_type   (type_symbol)
msousa@417:       || is_ANY_SAFEDATE_type     (type_symbol);
msousa@417: }
msousa@417: 
msousa@417: /* A helper function... */
msousa@417: bool is_ANY_ELEMENTARY_compatible(symbol_c *type_symbol) {
msousa@417:   if (type_symbol == NULL) {return false;}
msousa@417:   /* NOTE: doing
msousa@417:    *          return is_ANY_SAFEELEMENTARY_type() || is_ANY_ELEMENTARY_type()
msousa@417:    *       is incorrect, as the literals would never be considered compatible...
msousa@417:    */
msousa@417:   return is_ANY_MAGNITUDE_compatible(type_symbol)
msousa@417:       || is_ANY_BIT_compatible      (type_symbol)
msousa@417:       || is_ANY_STRING_compatible   (type_symbol)
msousa@417:       || is_ANY_DATE_compatible     (type_symbol);
msousa@417: }
msousa@417: 
msousa@417: 
msousa@417: /* A helper function... */
msousa@417: bool is_ANY_MAGNITUDE_type(symbol_c *type_symbol) {
msousa@417:   if (type_symbol == NULL) {return false;}
msousa@417:   if (typeid(*type_symbol) == typeid(time_type_name_c)) {return true;}
msousa@417:   return is_ANY_NUM_type(type_symbol);
msousa@417: }
msousa@417: 
msousa@417: /* A helper function... */
msousa@435: bool is_ANY_signed_MAGNITUDE_type(symbol_c *type_symbol) {
msousa@435:   if (type_symbol == NULL) {return false;}
msousa@435:   if (typeid(*type_symbol) == typeid(time_type_name_c)) {return true;}
msousa@435:   return is_ANY_signed_NUM_type(type_symbol);
msousa@435: }
msousa@435: 
msousa@435: /* A helper function... */
msousa@417: bool is_ANY_SAFEMAGNITUDE_type(symbol_c *type_symbol) {
msousa@417:   if (type_symbol == NULL) {return false;}
msousa@417:   if (typeid(*type_symbol) == typeid(safetime_type_name_c)) {return true;}
msousa@417:   return is_ANY_SAFENUM_type(type_symbol);
msousa@417: }
msousa@417: 
msousa@417: /* A helper function... */
msousa@435: bool is_ANY_signed_SAFEMAGNITUDE_type(symbol_c *type_symbol) {
msousa@435:   if (type_symbol == NULL) {return false;}
msousa@435:   if (typeid(*type_symbol) == typeid(safetime_type_name_c)) {return true;}
msousa@435:   return is_ANY_signed_SAFENUM_type(type_symbol);
msousa@435: }
msousa@435: 
msousa@435: /* A helper function... */
msousa@417: bool is_ANY_MAGNITUDE_compatible(symbol_c *type_symbol) {
msousa@417:   if (type_symbol == NULL) {return false;}
msousa@417:   if (is_ANY_MAGNITUDE_type    (type_symbol))              {return true;}
msousa@417:   if (is_ANY_SAFEMAGNITUDE_type(type_symbol))              {return true;}
msousa@417:   return is_ANY_NUM_compatible(type_symbol);
msousa@417: }
msousa@417: 
msousa@417: /* A helper function... */
msousa@435: bool is_ANY_signed_MAGNITUDE_compatible(symbol_c *type_symbol) {
msousa@435:   if (type_symbol == NULL) {return false;}
msousa@435:   if (is_ANY_signed_MAGNITUDE_type    (type_symbol))       {return true;}
msousa@435:   if (is_ANY_signed_SAFEMAGNITUDE_type(type_symbol))       {return true;}
msousa@435:   return is_ANY_signed_NUM_compatible(type_symbol);
msousa@435: }
msousa@435: 
msousa@435: /* A helper function... */
msousa@417: bool is_ANY_NUM_type(symbol_c *type_symbol) {
msousa@417:   if (type_symbol == NULL) {return false;}
msousa@417:   if (is_ANY_REAL_type(type_symbol))                       {return true;}
msousa@417:   if (is_ANY_INT_type(type_symbol))                        {return true;}
msousa@417:   return false;
msousa@417: }
msousa@417: 
msousa@417: /* A helper function... */
msousa@435: bool is_ANY_signed_NUM_type(symbol_c *type_symbol) {
msousa@435:   if (type_symbol == NULL) {return false;}
msousa@435:   if (is_ANY_REAL_type(type_symbol))                       {return true;}
msousa@435:   if (is_ANY_signed_INT_type(type_symbol))                 {return true;}
msousa@435:   return false;
msousa@435: }
msousa@435: 
msousa@435: /* A helper function... */
msousa@417: bool is_ANY_SAFENUM_type(symbol_c *type_symbol) {
msousa@417:   if (type_symbol == NULL) {return false;}
msousa@417:   return is_ANY_SAFEREAL_type(type_symbol)
msousa@417:       || is_ANY_SAFEINT_type (type_symbol);
msousa@417: }
msousa@417: 
msousa@417: /* A helper function... */
msousa@435: bool is_ANY_signed_SAFENUM_type(symbol_c *type_symbol) {
msousa@435:   if (type_symbol == NULL) {return false;}
msousa@435:   return is_ANY_SAFEREAL_type(type_symbol)
msousa@435:       || is_ANY_signed_SAFEINT_type (type_symbol);
msousa@435: }
msousa@435: 
msousa@435: /* A helper function... */
msousa@417: bool is_ANY_NUM_compatible(symbol_c *type_symbol) {
msousa@417:   if (type_symbol == NULL) {return false;}
msousa@417:   if (is_ANY_REAL_compatible(type_symbol))                       {return true;}
msousa@417:   if (is_ANY_INT_compatible(type_symbol))                        {return true;}
msousa@417:   return false;
msousa@417: }
msousa@417: 
msousa@417: /* A helper function... */
msousa@435: bool is_ANY_signed_NUM_compatible(symbol_c *type_symbol) {
msousa@435:   if (type_symbol == NULL) {return false;}
msousa@435:   if (is_ANY_REAL_compatible(type_symbol))                       {return true;}
msousa@435:   if (is_ANY_signed_INT_compatible(type_symbol))                 {return true;}
msousa@435:   return false;
msousa@435: }
msousa@435: 
msousa@435: /* A helper function... */
msousa@417: bool is_ANY_DATE_type(symbol_c *type_symbol) {
msousa@417:   if (type_symbol == NULL) {return false;}
msousa@417:   if (typeid(*type_symbol) == typeid(date_type_name_c)) {return true;}
msousa@417:   if (typeid(*type_symbol) == typeid(tod_type_name_c))  {return true;}
msousa@417:   if (typeid(*type_symbol) == typeid(dt_type_name_c))   {return true;}
msousa@417:   return false;
msousa@417: }
msousa@417: 
msousa@417: /* A helper function... */
msousa@417: bool is_ANY_SAFEDATE_type(symbol_c *type_symbol) {
msousa@417:   if (type_symbol == NULL) {return false;}
msousa@417:   if (typeid(*type_symbol) == typeid(safedate_type_name_c)) {return true;}
msousa@417:   if (typeid(*type_symbol) == typeid(safetod_type_name_c))  {return true;}
msousa@417:   if (typeid(*type_symbol) == typeid(safedt_type_name_c))   {return true;}
msousa@417:   return false;
msousa@417: }
msousa@417: 
msousa@417: /* A helper function... */
msousa@417: bool is_ANY_DATE_compatible(symbol_c *type_symbol) {
msousa@417:   if (type_symbol == NULL) {return false;}
msousa@417:   if (is_ANY_DATE_type    (type_symbol))              {return true;}
msousa@417:   if (is_ANY_SAFEDATE_type(type_symbol))              {return true;}
msousa@417:   return false;
msousa@417: }
msousa@417: 
msousa@417: /* A helper function... */
msousa@417: bool is_ANY_STRING_type(symbol_c *type_symbol) {
msousa@417:   if (type_symbol == NULL) {return false;}
msousa@417:   if (typeid(*type_symbol) == typeid(string_type_name_c)) {return true;}
msousa@417:   if (typeid(*type_symbol) == typeid(wstring_type_name_c)) {return true;}
msousa@417:   return false;
msousa@417: }
msousa@417: 
msousa@417: /* A helper function... */
msousa@417: bool is_ANY_SAFESTRING_type(symbol_c *type_symbol) {
msousa@417:   if (type_symbol == NULL) {return false;}
msousa@417:   if (typeid(*type_symbol) == typeid(safestring_type_name_c)) {return true;}
msousa@417:   if (typeid(*type_symbol) == typeid(safewstring_type_name_c)) {return true;}
msousa@417:   return false;
msousa@417: }
msousa@417: 
msousa@417: /* A helper function... */
msousa@417: bool is_ANY_STRING_compatible(symbol_c *type_symbol) {
msousa@417:   if (type_symbol == NULL) {return false;}
msousa@417:   if (is_ANY_STRING_type    (type_symbol))              {return true;}
msousa@417:   if (is_ANY_SAFESTRING_type(type_symbol))              {return true;}
msousa@417:   return false;
msousa@417: }
msousa@417: 
msousa@417: /* A helper function... */
msousa@417: bool is_ANY_INT_type(symbol_c *type_symbol) {
msousa@417:   if (type_symbol == NULL) {return false;}
msousa@417:   if (typeid(*type_symbol) == typeid(sint_type_name_c))  {return true;}
msousa@417:   if (typeid(*type_symbol) == typeid(int_type_name_c))   {return true;}
msousa@417:   if (typeid(*type_symbol) == typeid(dint_type_name_c))  {return true;}
msousa@417:   if (typeid(*type_symbol) == typeid(lint_type_name_c))  {return true;}
msousa@417:   if (typeid(*type_symbol) == typeid(usint_type_name_c)) {return true;}
msousa@417:   if (typeid(*type_symbol) == typeid(uint_type_name_c))  {return true;}
msousa@417:   if (typeid(*type_symbol) == typeid(udint_type_name_c)) {return true;}
msousa@417:   if (typeid(*type_symbol) == typeid(ulint_type_name_c)) {return true;}
msousa@417:   return false;
msousa@417: }
msousa@417: 
msousa@417: /* A helper function... */
msousa@435: bool is_ANY_signed_INT_type(symbol_c *type_symbol) {
msousa@435:   if (type_symbol == NULL) {return false;}
msousa@435:   if (typeid(*type_symbol) == typeid(sint_type_name_c))  {return true;}
msousa@435:   if (typeid(*type_symbol) == typeid(int_type_name_c))   {return true;}
msousa@435:   if (typeid(*type_symbol) == typeid(dint_type_name_c))  {return true;}
msousa@435:   if (typeid(*type_symbol) == typeid(lint_type_name_c))  {return true;}
msousa@435:   return false;
msousa@435: }
msousa@435: 
msousa@435: /* A helper function... */
msousa@435: bool is_ANY_signed_SAFEINT_type(symbol_c *type_symbol) {
msousa@435:   if (type_symbol == NULL) {return false;}
msousa@435:   if (typeid(*type_symbol) == typeid(safesint_type_name_c))  {return true;}
msousa@435:   if (typeid(*type_symbol) == typeid(safeint_type_name_c))   {return true;}
msousa@435:   if (typeid(*type_symbol) == typeid(safedint_type_name_c))  {return true;}
msousa@435:   if (typeid(*type_symbol) == typeid(safelint_type_name_c))  {return true;}
msousa@435:   return false;
msousa@435: }
msousa@435: 
msousa@435: /* A helper function... */
msousa@417: bool is_ANY_SAFEINT_type(symbol_c *type_symbol) {
msousa@417:   if (type_symbol == NULL) {return false;}
msousa@417:   if (typeid(*type_symbol) == typeid(safesint_type_name_c))  {return true;}
msousa@417:   if (typeid(*type_symbol) == typeid(safeint_type_name_c))   {return true;}
msousa@417:   if (typeid(*type_symbol) == typeid(safedint_type_name_c))  {return true;}
msousa@417:   if (typeid(*type_symbol) == typeid(safelint_type_name_c))  {return true;}
msousa@417:   if (typeid(*type_symbol) == typeid(safeusint_type_name_c)) {return true;}
msousa@417:   if (typeid(*type_symbol) == typeid(safeuint_type_name_c))  {return true;}
msousa@417:   if (typeid(*type_symbol) == typeid(safeudint_type_name_c)) {return true;}
msousa@417:   if (typeid(*type_symbol) == typeid(safeulint_type_name_c)) {return true;}
msousa@417:   return false;
msousa@417: }
msousa@417: 
msousa@417: /* A helper function... */
msousa@435: bool is_ANY_signed_INT_compatible(symbol_c *type_symbol) {
msousa@435:   if (type_symbol == NULL) {return false;}
msousa@435:   if (is_ANY_signed_INT_type    (type_symbol))              {return true;}
msousa@435:   if (is_ANY_signed_SAFEINT_type(type_symbol))              {return true;}
msousa@435:   return false;
msousa@435: }
msousa@435: 
msousa@435: /* A helper function... */
msousa@417: bool is_ANY_INT_compatible(symbol_c *type_symbol) {
msousa@417:   if (type_symbol == NULL) {return false;}
msousa@417:   if (is_ANY_INT_type    (type_symbol))              {return true;}
msousa@417:   if (is_ANY_SAFEINT_type(type_symbol))              {return true;}
msousa@417:   return false;
msousa@417: }
msousa@417: 
msousa@417: /* A helper function... */
msousa@417: bool is_ANY_REAL_type(symbol_c *type_symbol) {
msousa@417:   if (type_symbol == NULL) {return false;}
msousa@417:   if (typeid(*type_symbol) == typeid(real_type_name_c))  {return true;}
msousa@417:   if (typeid(*type_symbol) == typeid(lreal_type_name_c)) {return true;}
msousa@417:   return false;
msousa@417: }
msousa@417: 
msousa@417: /* A helper function... */
msousa@417: bool is_ANY_SAFEREAL_type(symbol_c *type_symbol) {
msousa@417:   if (type_symbol == NULL) {return false;}
msousa@417:   if (typeid(*type_symbol) == typeid(safereal_type_name_c))  {return true;}
msousa@417:   if (typeid(*type_symbol) == typeid(safelreal_type_name_c)) {return true;}
msousa@417:   return false;
msousa@417: }
msousa@417: 
msousa@417: /* A helper function... */
msousa@417: bool is_ANY_REAL_compatible(symbol_c *type_symbol) {
msousa@417:   if (type_symbol == NULL) {return false;}
msousa@417:   if (is_ANY_REAL_type    (type_symbol))              {return true;}
msousa@417:   if (is_ANY_SAFEREAL_type(type_symbol))              {return true;}
msousa@417:   return false;
msousa@417: }
msousa@417: 
msousa@417: /* A helper function... */
msousa@417: bool is_ANY_BIT_type(symbol_c *type_symbol) {
msousa@417:   if (type_symbol == NULL) {return false;}
msousa@417:   if (typeid(*type_symbol) == typeid(bool_type_name_c))     {return true;}
msousa@417:   if (typeid(*type_symbol) == typeid(byte_type_name_c))     {return true;}
msousa@417:   if (typeid(*type_symbol) == typeid(word_type_name_c))     {return true;}
msousa@417:   if (typeid(*type_symbol) == typeid(dword_type_name_c))    {return true;}
msousa@417:   if (typeid(*type_symbol) == typeid(lword_type_name_c))    {return true;}
msousa@417:   return false;
msousa@417: }
msousa@417: 
msousa@417: /* A helper function... */
msousa@417: bool is_ANY_SAFEBIT_type(symbol_c *type_symbol) {
msousa@417:   if (type_symbol == NULL) {return false;}
msousa@417:   if (typeid(*type_symbol) == typeid(safebool_type_name_c))     {return true;}
msousa@417:   if (typeid(*type_symbol) == typeid(safebyte_type_name_c))     {return true;}
msousa@417:   if (typeid(*type_symbol) == typeid(safeword_type_name_c))     {return true;}
msousa@417:   if (typeid(*type_symbol) == typeid(safedword_type_name_c))    {return true;}
msousa@417:   if (typeid(*type_symbol) == typeid(safelword_type_name_c))    {return true;}
msousa@417:   return false;
msousa@417: }
msousa@417: 
msousa@417: /* A helper function... */
msousa@417: bool is_ANY_BIT_compatible(symbol_c *type_symbol) {
msousa@417:   if (type_symbol == NULL) {return false;}
msousa@417:   if (is_ANY_BIT_type    (type_symbol))              {return true;}
msousa@417:   if (is_ANY_SAFEBIT_type(type_symbol))              {return true;}
msousa@417:   return false;
msousa@417: }
msousa@417: 
msousa@417: /* A helper function... */
msousa@417: bool is_BOOL_type(symbol_c *type_symbol) {
msousa@417:   if (type_symbol == NULL) {return false;}
msousa@417:   if (typeid(*type_symbol) == typeid(bool_type_name_c))      {return true;}
msousa@417:   return false;
msousa@417: }
msousa@417: 
msousa@417: /* A helper function... */
msousa@417: bool is_SAFEBOOL_type(symbol_c *type_symbol){
msousa@417:   if (type_symbol == NULL) {return false;}
msousa@417:   if (typeid(*type_symbol) == typeid(safebool_type_name_c))  {return true;}
msousa@417:   return false;
msousa@417: }
msousa@417: 
msousa@417: /* A helper function... */
msousa@417: bool is_ANY_BOOL_compatible(symbol_c *type_symbol) {
msousa@417:   if (type_symbol == NULL) {return false;}
msousa@417:   if (is_BOOL_type    (type_symbol))              {return true;}
msousa@417:   if (is_SAFEBOOL_type(type_symbol))              {return true;}
msousa@436:   return false;
msousa@436: }
msousa@436: 
msousa@436: 
msousa@436: 
msousa@436: 
msousa@417: 
msousa@417: bool is_type_equal(symbol_c *first_type, symbol_c *second_type)
msousa@417: {
msousa@417:     if (first_type == NULL || second_type == NULL) {
msousa@417:         return false;
msousa@417:     }
msousa@417:     if (is_ANY_ELEMENTARY_type(first_type)) {
msousa@417:         if (typeid(*first_type) == typeid(*second_type))
msousa@417:             return true;
msousa@417:     } else   /* ANY_DERIVED */
msousa@417:         return (first_type == second_type);
msousa@417: 
msousa@417:     return false;
msousa@417: }