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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

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

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 *  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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 *

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

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 *  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

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

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 */

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#include "datatype_functions.hh"

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

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#include <vector>

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/* Macro that expand to subtypes */

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/* copied from matiec/lib/create_standard_functions_txt.sh */

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#define __ANY(DO)                 __ANY_DERIVED(DO) __ANY_ELEMENTARY(DO)

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#define __ANY_DERIVED(DO)

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#define __ANY_ELEMENTARY(DO)      __ANY_MAGNITUDE(DO) __ANY_BIT(DO) __ANY_STRING(DO) __ANY_DATE(DO)

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#define __ANY_MAGNITUDE(DO)       __ANY_NUM(DO) DO(time)

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#define __ANY_BIT(DO)             __ANY_NBIT(DO) DO(bool)

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#define __ANY_NBIT(DO)            DO(byte) DO(word) DO(dword) DO(lword)

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//#define __ANY_STRING(DO)          DO(string) DO(wstring)

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#define __ANY_STRING(DO)          DO(string)

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#define __ANY_DATE(DO)            DO(date) DO(tod) DO(dt)

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#define __ANY_NUM(DO)             __ANY_REAL(DO) __ANY_INT(DO)

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#define __ANY_REAL(DO)            DO(real) DO(lreal)

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#define __ANY_INT(DO)             __ANY_SINT(DO) __ANY_UINT(DO)

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#define __ANY_SINT(DO)            DO(sint) DO(int) DO(dint) DO(lint)

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#define __ANY_UINT(DO)            DO(usint) DO(uint) DO(udint) DO(ulint)

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#define __ANY_1(DO,P1)            __ANY_DERIVED_1(DO,P1) __ANY_ELEMENTARY_1(DO,P1)

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#define __ANY_DERIVED_1(DO,P1)

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#define __ANY_ELEMENTARY_1(DO,P1) __ANY_MAGNITUDE_1(DO,P1) __ANY_BIT_1(DO,P1) __ANY_STRING_1(DO,P1) __ANY_DATE_1(DO,P1)

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#define __ANY_MAGNITUDE_1(DO,P1)  __ANY_NUM_1(DO,P1) DO(time,P1)

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#define __ANY_BIT_1(DO,P1)        __ANY_NBIT_1(DO,P1) DO(bool,P1)

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#define __ANY_NBIT_1(DO,P1)       DO(byte,P1) DO(word,P1) DO(dword,P1) DO(lword,P1)

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// #define __ANY_STRING_1(DO,P1)     DO(string,P1) DO(wstring,P1)

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#define __ANY_STRING_1(DO,P1)     DO(string,P1)

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#define __ANY_DATE_1(DO,P1)       DO(date,P1) DO(tod,P1) DO(dt,P1)

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#define __ANY_NUM_1(DO,P1)        __ANY_REAL_1(DO,P1) __ANY_INT_1(DO,P1)

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#define __ANY_REAL_1(DO,P1)       DO(real,P1) DO(lreal,P1)

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#define __ANY_INT_1(DO,P1)        __ANY_SINT_1(DO,P1) __ANY_UINT_1(DO,P1)

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#define __ANY_SINT_1(DO,P1)       DO(sint,P1) DO(int,P1) DO(dint,P1) DO(lint,P1)

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#define __ANY_UINT_1(DO,P1)       DO(usint,P1) DO(uint,P1) DO(udint,P1) DO(ulint,P1)

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/**************************************************************/

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/**************************************************************/

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/**************************************************************/

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/*******  TABLE 24: Standard arithmetic functions       *******/

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/*******    merged with                                 *******/

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/*******  TABLE 30: Functions of time data types        *******/

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/**************************************************************/

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/**************************************************************/

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/**************************************************************/

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/* NOTE: IEC 61131-3 v2 declares that using implicit operations ('+', '-', '*', '/') on ANYTIME data types is

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 *       valid, but deprecated, suposedly meaning that they will be removed in the following version of the standard.

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 *       However, the current draft version of IEC 61131-3 v3 still allows this use, and no longer declares these

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 *       implicit operations as deprecated.

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 *       Because of this, and although we are implementing v2 of the standard, we will no longer mark these 

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 *       operations as deprecated.

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 */

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  #define ANYTIME_OPER_DEPRECATION_STATUS widen_entry::ok

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//#define ANYTIME_OPER_DEPRECATION_STATUS widen_entry::deprecated

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const struct widen_entry widen_ADD_table[] = {

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#define __add(TYPE)       \

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    { &get_datatype_info_c::TYPE##_type_name,        &get_datatype_info_c::TYPE##_type_name,          &get_datatype_info_c::TYPE##_type_name,       widen_entry::ok                 }, \

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    { &get_datatype_info_c::safe##TYPE##_type_name,  &get_datatype_info_c::TYPE##_type_name,          &get_datatype_info_c::TYPE##_type_name,       widen_entry::ok                 }, \

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    { &get_datatype_info_c::TYPE##_type_name,        &get_datatype_info_c::safe##TYPE##_type_name,    &get_datatype_info_c::TYPE##_type_name,       widen_entry::ok                 }, \

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    { &get_datatype_info_c::safe##TYPE##_type_name,  &get_datatype_info_c::safe##TYPE##_type_name,    &get_datatype_info_c::safe##TYPE##_type_name, widen_entry::ok                 },

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    __ANY_NUM(__add)

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#undef __add

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    /*******************************************/

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    /*******************************************/

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    /*** Operations with TIME, DT and TOD... ***/

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    /*******************************************/

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    /*******************************************/ 

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    { &get_datatype_info_c::time_type_name,          &get_datatype_info_c::time_type_name,            &get_datatype_info_c::time_type_name,         widen_entry::ok                 },

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    { &get_datatype_info_c::tod_type_name,           &get_datatype_info_c::time_type_name,            &get_datatype_info_c::tod_type_name,          ANYTIME_OPER_DEPRECATION_STATUS },

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    /* NOTE: the standard des not explicitly support the following semantics. However, since 'addition' is supposed to be commutative, we add it anyway... */

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    /* not currently supported by stage4, so it is best no tto add it for now... */

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//  { &get_datatype_info_c::time_type_name,          &get_datatype_info_c::tod_type_name,             &get_datatype_info_c::tod_type_name,          ANYTIME_OPER_DEPRECATION_STATUS },

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    { &get_datatype_info_c::dt_type_name,            &get_datatype_info_c::time_type_name,            &get_datatype_info_c::dt_type_name,           ANYTIME_OPER_DEPRECATION_STATUS },         

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    /* NOTE: the standard des not explicitly support the following semantics. However, since 'addition' is supposed to be commutative, we add it anyway... */

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    /* not currently supported by stage4, so it is best no tto add it for now... */

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//  { &get_datatype_info_c::time_type_name,          &get_datatype_info_c::dt_type_name,              &get_datatype_info_c::dt_type_name,           ANYTIME_OPER_DEPRECATION_STATUS },         

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    /*******************************/

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    /* SAFE version on the left... */

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    /*******************************/

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    { &get_datatype_info_c::safetime_type_name,      &get_datatype_info_c::time_type_name,            &get_datatype_info_c::time_type_name,         widen_entry::ok                 },

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    { &get_datatype_info_c::safetod_type_name,       &get_datatype_info_c::time_type_name,            &get_datatype_info_c::tod_type_name,          ANYTIME_OPER_DEPRECATION_STATUS },

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    /* NOTE: the standard des not explicitly support the following semantics. However, since 'addition' is supposed to be commutative, we add it anyway... */

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    /* not currently supported by stage4, so it is best no tto add it for now... */

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//  { &get_datatype_info_c::safetime_type_name,      &get_datatype_info_c::tod_type_name,             &get_datatype_info_c::tod_type_name,          ANYTIME_OPER_DEPRECATION_STATUS },

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    { &get_datatype_info_c::safedt_type_name,        &get_datatype_info_c::time_type_name,            &get_datatype_info_c::dt_type_name,           ANYTIME_OPER_DEPRECATION_STATUS },         

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    /* NOTE: the standard des not explicitly support the following semantics. However, since 'addition' is supposed to be commutative, we add it anyway... */

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    /* not currently supported by stage4, so it is best no tto add it for now... */

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//  { &get_datatype_info_c::safetime_type_name,      &get_datatype_info_c::dt_type_name,              &get_datatype_info_c::dt_type_name,           ANYTIME_OPER_DEPRECATION_STATUS },         

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    /********************************/

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    /* SAFE version on the right... */

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    /********************************/

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    { &get_datatype_info_c::time_type_name,          &get_datatype_info_c::safetime_type_name,        &get_datatype_info_c::time_type_name,         widen_entry::ok         },

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    { &get_datatype_info_c::tod_type_name,           &get_datatype_info_c::safetime_type_name,        &get_datatype_info_c::tod_type_name,          ANYTIME_OPER_DEPRECATION_STATUS },

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    /* NOTE: the standard des not explicitly support the following semantics. However, since 'addition' is supposed to be commutative, we add it anyway... */

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    /* not currently supported by stage4, so it is best no tto add it for now... */

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//  { &get_datatype_info_c::time_type_name,          &get_datatype_info_c::safetod_type_name,         &get_datatype_info_c::tod_type_name,          ANYTIME_OPER_DEPRECATION_STATUS },

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    { &get_datatype_info_c::dt_type_name,            &get_datatype_info_c::safetime_type_name,        &get_datatype_info_c::dt_type_name,           ANYTIME_OPER_DEPRECATION_STATUS },         

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    /* NOTE: the standard des not explicitly support the following semantics. However, since 'addition' is supposed to be commutative, we add it anyway... */

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    /* not currently supported by stage4, so it is best no tto add it for now... */

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//  { &get_datatype_info_c::time_type_name,          &get_datatype_info_c::safedt_type_name,          &get_datatype_info_c::dt_type_name,           ANYTIME_OPER_DEPRECATION_STATUS },         

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    /*************************************/

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    /* SAFE version on left and right... */

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    /*************************************/

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    { &get_datatype_info_c::safetime_type_name,      &get_datatype_info_c::safetime_type_name,        &get_datatype_info_c::safetime_type_name,     widen_entry::ok                 },

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    { &get_datatype_info_c::safetod_type_name,       &get_datatype_info_c::safetime_type_name,        &get_datatype_info_c::safetod_type_name,      ANYTIME_OPER_DEPRECATION_STATUS },

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    /* NOTE: the standard des not explicitly support the following semantics. However, since 'addition' is supposed to be commutative, we add it anyway... */

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    /* not currently supported by stage4, so it is best no tto add it for now... */

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//  { &get_datatype_info_c::safetime_type_name,      &get_datatype_info_c::safetod_type_name,         &get_datatype_info_c::safetod_type_name,      ANYTIME_OPER_DEPRECATION_STATUS },

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    { &get_datatype_info_c::safedt_type_name,        &get_datatype_info_c::safetime_type_name,        &get_datatype_info_c::safedt_type_name,       ANYTIME_OPER_DEPRECATION_STATUS },         

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    /* NOTE: the standard des not explicitly support the following semantics. However, since 'addition' is supposed to be commutative, we add it anyway... */

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    /* not currently supported by stage4, so it is best no tto add it for now... */

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//  { &get_datatype_info_c::safetime_type_name,      &get_datatype_info_c::safedt_type_name,          &get_datatype_info_c::safedt_type_name,       ANYTIME_OPER_DEPRECATION_STATUS },

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

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};

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const struct widen_entry widen_SUB_table[] = {

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#define __sub(TYPE)       \

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    { &get_datatype_info_c::TYPE##_type_name,        &get_datatype_info_c::TYPE##_type_name,          &get_datatype_info_c::TYPE##_type_name,       widen_entry::ok                 }, \

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    { &get_datatype_info_c::safe##TYPE##_type_name,  &get_datatype_info_c::TYPE##_type_name,          &get_datatype_info_c::TYPE##_type_name,       widen_entry::ok                 }, \

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    { &get_datatype_info_c::TYPE##_type_name,        &get_datatype_info_c::safe##TYPE##_type_name,    &get_datatype_info_c::TYPE##_type_name,       widen_entry::ok                 }, \

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    { &get_datatype_info_c::safe##TYPE##_type_name,  &get_datatype_info_c::safe##TYPE##_type_name,    &get_datatype_info_c::safe##TYPE##_type_name, widen_entry::ok                 },

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    __ANY_NUM(__sub)

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#undef __sub

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    /*******************************************/

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    /*******************************************/

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    /*** Operations with TIME, DT and TOD... ***/

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    /*******************************************/

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    /*******************************************/ 

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    { &get_datatype_info_c::time_type_name,          &get_datatype_info_c::time_type_name,            &get_datatype_info_c::time_type_name,         widen_entry::ok                 },

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    { &get_datatype_info_c::date_type_name,          &get_datatype_info_c::date_type_name,            &get_datatype_info_c::time_type_name,         ANYTIME_OPER_DEPRECATION_STATUS },

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    { &get_datatype_info_c::tod_type_name,           &get_datatype_info_c::time_type_name,            &get_datatype_info_c::tod_type_name,          ANYTIME_OPER_DEPRECATION_STATUS },

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    { &get_datatype_info_c::tod_type_name,           &get_datatype_info_c::tod_type_name,             &get_datatype_info_c::time_type_name,         ANYTIME_OPER_DEPRECATION_STATUS },

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    { &get_datatype_info_c::dt_type_name,            &get_datatype_info_c::time_type_name,            &get_datatype_info_c::dt_type_name,           ANYTIME_OPER_DEPRECATION_STATUS },

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    { &get_datatype_info_c::dt_type_name,            &get_datatype_info_c::dt_type_name,              &get_datatype_info_c::time_type_name,         ANYTIME_OPER_DEPRECATION_STATUS },        

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    /*******************************/

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    /* SAFE version on the left... */

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    /*******************************/

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    { &get_datatype_info_c::safetime_type_name,      &get_datatype_info_c::time_type_name,            &get_datatype_info_c::time_type_name,         widen_entry::ok                 },

   186

    { &get_datatype_info_c::safedate_type_name,      &get_datatype_info_c::date_type_name,            &get_datatype_info_c::time_type_name,         ANYTIME_OPER_DEPRECATION_STATUS },

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    { &get_datatype_info_c::safetod_type_name,       &get_datatype_info_c::time_type_name,            &get_datatype_info_c::tod_type_name,          ANYTIME_OPER_DEPRECATION_STATUS },

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    { &get_datatype_info_c::safetod_type_name,       &get_datatype_info_c::tod_type_name,             &get_datatype_info_c::time_type_name,         ANYTIME_OPER_DEPRECATION_STATUS },

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    { &get_datatype_info_c::safedt_type_name,        &get_datatype_info_c::time_type_name,            &get_datatype_info_c::dt_type_name,           ANYTIME_OPER_DEPRECATION_STATUS },

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    { &get_datatype_info_c::safedt_type_name,        &get_datatype_info_c::dt_type_name,              &get_datatype_info_c::time_type_name,         ANYTIME_OPER_DEPRECATION_STATUS },        

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    /********************************/

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    /* SAFE version on the right... */

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    /********************************/

   195

    { &get_datatype_info_c::time_type_name,          &get_datatype_info_c::safetime_type_name,        &get_datatype_info_c::time_type_name,         widen_entry::ok                 },

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    { &get_datatype_info_c::date_type_name,          &get_datatype_info_c::safedate_type_name,        &get_datatype_info_c::time_type_name,         ANYTIME_OPER_DEPRECATION_STATUS },

   197

    { &get_datatype_info_c::tod_type_name,           &get_datatype_info_c::safetime_type_name,        &get_datatype_info_c::tod_type_name,          ANYTIME_OPER_DEPRECATION_STATUS },

   198

    { &get_datatype_info_c::tod_type_name,           &get_datatype_info_c::safetod_type_name,         &get_datatype_info_c::time_type_name,         ANYTIME_OPER_DEPRECATION_STATUS },

   199

    { &get_datatype_info_c::dt_type_name,            &get_datatype_info_c::safetime_type_name,        &get_datatype_info_c::dt_type_name,           ANYTIME_OPER_DEPRECATION_STATUS },

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    { &get_datatype_info_c::dt_type_name,            &get_datatype_info_c::safedt_type_name,          &get_datatype_info_c::time_type_name,         ANYTIME_OPER_DEPRECATION_STATUS },        

   201

   202

    /*************************************/

   203

    /* SAFE version on left and right... */

   204

    /*************************************/

   205

    { &get_datatype_info_c::safetime_type_name,      &get_datatype_info_c::safetime_type_name,        &get_datatype_info_c::safetime_type_name,     widen_entry::ok                 },

   206

    { &get_datatype_info_c::safedate_type_name,      &get_datatype_info_c::safedate_type_name,        &get_datatype_info_c::safetime_type_name,     ANYTIME_OPER_DEPRECATION_STATUS },

   207

    { &get_datatype_info_c::safetod_type_name,       &get_datatype_info_c::safetime_type_name,        &get_datatype_info_c::safetod_type_name,      ANYTIME_OPER_DEPRECATION_STATUS },

   208

    { &get_datatype_info_c::safetod_type_name,       &get_datatype_info_c::safetod_type_name,         &get_datatype_info_c::safetime_type_name,     ANYTIME_OPER_DEPRECATION_STATUS },

   209

    { &get_datatype_info_c::safedt_type_name,        &get_datatype_info_c::safetime_type_name,        &get_datatype_info_c::safedt_type_name,       ANYTIME_OPER_DEPRECATION_STATUS },

   210

    { &get_datatype_info_c::safedt_type_name,        &get_datatype_info_c::safedt_type_name,          &get_datatype_info_c::safetime_type_name,     ANYTIME_OPER_DEPRECATION_STATUS },        

   211

   212

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

   213

};

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   221

const struct widen_entry widen_MUL_table[] = {

   222

#define __mul(TYPE)       \

   223

    { &get_datatype_info_c::TYPE##_type_name,        &get_datatype_info_c::TYPE##_type_name,          &get_datatype_info_c::TYPE##_type_name,       widen_entry::ok                 }, \

   224

    { &get_datatype_info_c::safe##TYPE##_type_name,  &get_datatype_info_c::TYPE##_type_name,          &get_datatype_info_c::TYPE##_type_name,       widen_entry::ok                 }, \

   225

    { &get_datatype_info_c::TYPE##_type_name,        &get_datatype_info_c::safe##TYPE##_type_name,    &get_datatype_info_c::TYPE##_type_name,       widen_entry::ok                 }, \

   226

    { &get_datatype_info_c::safe##TYPE##_type_name,  &get_datatype_info_c::safe##TYPE##_type_name,    &get_datatype_info_c::safe##TYPE##_type_name, widen_entry::ok                 },

   227

    __ANY_NUM(__mul)

   228

#undef __mul

   229

   230

    /*******************************************/

   231

    /*******************************************/

   232

    /*** Operations with TIME, DT and TOD... ***/

   233

    /*******************************************/

   234

    /*******************************************/ 

   235

#define __multime(TYPE)       \

   236

    { &get_datatype_info_c::time_type_name,          &get_datatype_info_c::TYPE##_type_name,          &get_datatype_info_c::time_type_name,         ANYTIME_OPER_DEPRECATION_STATUS }, \

   237

    { &get_datatype_info_c::safetime_type_name,      &get_datatype_info_c::TYPE##_type_name,          &get_datatype_info_c::time_type_name,         ANYTIME_OPER_DEPRECATION_STATUS }, \

   238

    { &get_datatype_info_c::time_type_name,          &get_datatype_info_c::safe##TYPE##_type_name,    &get_datatype_info_c::time_type_name,         ANYTIME_OPER_DEPRECATION_STATUS }, \

   239

    { &get_datatype_info_c::safetime_type_name,      &get_datatype_info_c::safe##TYPE##_type_name,    &get_datatype_info_c::safetime_type_name,     ANYTIME_OPER_DEPRECATION_STATUS }, \

   240

    /* NOTE: the standard des not explicitly support the following semantics. However, since 'multiplication' is supposed to be commutative, we add it anyway... */                 \

   241

    { &get_datatype_info_c::TYPE##_type_name,        &get_datatype_info_c::time_type_name,            &get_datatype_info_c::time_type_name,         ANYTIME_OPER_DEPRECATION_STATUS }, \

   242

    { &get_datatype_info_c::safe##TYPE##_type_name,  &get_datatype_info_c::time_type_name,            &get_datatype_info_c::time_type_name,         ANYTIME_OPER_DEPRECATION_STATUS }, \

   243

    { &get_datatype_info_c::TYPE##_type_name,        &get_datatype_info_c::safetime_type_name,        &get_datatype_info_c::time_type_name,         ANYTIME_OPER_DEPRECATION_STATUS }, \

   244

    { &get_datatype_info_c::safe##TYPE##_type_name,  &get_datatype_info_c::safetime_type_name,        &get_datatype_info_c::safetime_type_name,     ANYTIME_OPER_DEPRECATION_STATUS },

   245

    __ANY_NUM(__multime)

   246

#undef __multime

   247

   248

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

   249

};

   250

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   254

   255

const struct widen_entry widen_DIV_table[] = {

   256

#define __div(TYPE)       \

   257

    { &get_datatype_info_c::TYPE##_type_name,        &get_datatype_info_c::TYPE##_type_name,          &get_datatype_info_c::TYPE##_type_name,       widen_entry::ok                 }, \

   258

    { &get_datatype_info_c::safe##TYPE##_type_name,  &get_datatype_info_c::TYPE##_type_name,          &get_datatype_info_c::TYPE##_type_name,       widen_entry::ok                 }, \

   259

    { &get_datatype_info_c::TYPE##_type_name,        &get_datatype_info_c::safe##TYPE##_type_name,    &get_datatype_info_c::TYPE##_type_name,       widen_entry::ok                 }, \

   260

    { &get_datatype_info_c::safe##TYPE##_type_name,  &get_datatype_info_c::safe##TYPE##_type_name,    &get_datatype_info_c::safe##TYPE##_type_name, widen_entry::ok                 },

   261

    __ANY_NUM(__div)

   262

#undef __div

   263

   264

    /*******************************************/

   265

    /*******************************************/

   266

    /*** Operations with TIME, DT and TOD... ***/

   267

    /*******************************************/

   268

    /*******************************************/ 

   269

#define __divtime(TYPE)       \

   270

    { &get_datatype_info_c::time_type_name,          &get_datatype_info_c::TYPE##_type_name,          &get_datatype_info_c::time_type_name,         ANYTIME_OPER_DEPRECATION_STATUS }, \

   271

    { &get_datatype_info_c::safetime_type_name,      &get_datatype_info_c::TYPE##_type_name,          &get_datatype_info_c::time_type_name,         ANYTIME_OPER_DEPRECATION_STATUS }, \

   272

    { &get_datatype_info_c::time_type_name,          &get_datatype_info_c::safe##TYPE##_type_name,    &get_datatype_info_c::time_type_name,         ANYTIME_OPER_DEPRECATION_STATUS }, \

   273

    { &get_datatype_info_c::safetime_type_name,      &get_datatype_info_c::safe##TYPE##_type_name,    &get_datatype_info_c::safetime_type_name,     ANYTIME_OPER_DEPRECATION_STATUS },

   274

    __ANY_NUM(__divtime)

   275

#undef __divtime

   276

   277

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

   278

 };

   279

   280

   281

   282

   283

const struct widen_entry widen_MOD_table[] = {

   284

#define __mod(TYPE)       \

   285

    { &get_datatype_info_c::TYPE##_type_name,        &get_datatype_info_c::TYPE##_type_name,          &get_datatype_info_c::TYPE##_type_name,       widen_entry::ok                 }, \

   286

    { &get_datatype_info_c::safe##TYPE##_type_name,  &get_datatype_info_c::TYPE##_type_name,          &get_datatype_info_c::TYPE##_type_name,       widen_entry::ok                 }, \

   287

    { &get_datatype_info_c::TYPE##_type_name,        &get_datatype_info_c::safe##TYPE##_type_name,    &get_datatype_info_c::TYPE##_type_name,       widen_entry::ok                 }, \

   288

    { &get_datatype_info_c::safe##TYPE##_type_name,  &get_datatype_info_c::safe##TYPE##_type_name,    &get_datatype_info_c::safe##TYPE##_type_name, widen_entry::ok                 },

   289

    __ANY_NUM(__mod)

   290

#undef __mod

   291

   292

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

   293

};

   294

   295

   296

   297

   298

const struct widen_entry widen_EXPT_table[] = {

   299

#define __expt(IN2TYPE, IN1TYPE)       \

   300

    { &get_datatype_info_c::IN1TYPE##_type_name,        &get_datatype_info_c::IN2TYPE##_type_name,          &get_datatype_info_c::IN1TYPE##_type_name,       widen_entry::ok        }, \

   301

    { &get_datatype_info_c::safe##IN1TYPE##_type_name,  &get_datatype_info_c::IN2TYPE##_type_name,          &get_datatype_info_c::IN1TYPE##_type_name,       widen_entry::ok        }, \

   302

    { &get_datatype_info_c::IN1TYPE##_type_name,        &get_datatype_info_c::safe##IN2TYPE##_type_name,    &get_datatype_info_c::IN1TYPE##_type_name,       widen_entry::ok        }, \

   303

    { &get_datatype_info_c::safe##IN1TYPE##_type_name,  &get_datatype_info_c::safe##IN2TYPE##_type_name,    &get_datatype_info_c::safe##IN1TYPE##_type_name, widen_entry::ok        },

   304

#define __IN2_anynum_(IN1_TYPENAME)   __ANY_NUM_1(__expt,IN1_TYPENAME)

   305

    __ANY_REAL(__IN2_anynum_)

   306

#undef __expt

   307

#undef __IN2_anynum_

   308

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

   309

};

   310

   311

   312

   313

/**************************************************************/

   314

/**************************************************************/

   315

/**************************************************************/

   316

/*******                                                *******/

   317

/*******  TABLE 26: Standard bitwise Boolean functions  *******/

   318

/*******                                                *******/

   319

/**************************************************************/

   320

/**************************************************************/

   321

/**************************************************************/

   322

/* table used by AND and ANDN operators, and and_expression */

   323

const struct widen_entry widen_AND_table[] = {

   324

#define __and(TYPE)       \

   325

    { &get_datatype_info_c::TYPE##_type_name,        &get_datatype_info_c::TYPE##_type_name,          &get_datatype_info_c::TYPE##_type_name,       widen_entry::ok                 }, \

   326

    { &get_datatype_info_c::safe##TYPE##_type_name,  &get_datatype_info_c::TYPE##_type_name,          &get_datatype_info_c::TYPE##_type_name,       widen_entry::ok                 }, \

   327

    { &get_datatype_info_c::TYPE##_type_name,        &get_datatype_info_c::safe##TYPE##_type_name,    &get_datatype_info_c::TYPE##_type_name,       widen_entry::ok                 }, \

   328

    { &get_datatype_info_c::safe##TYPE##_type_name,  &get_datatype_info_c::safe##TYPE##_type_name,    &get_datatype_info_c::safe##TYPE##_type_name, widen_entry::ok                 },

   329

    __ANY_BIT(__and)

   330

#undef __and

   331

   332

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

   333

};

   334

   335

/* table used by OR and ORN operators, and or_expression */

   336

const struct widen_entry widen_OR_table[] = {

   337

#define __or(TYPE)       \

   338

    { &get_datatype_info_c::TYPE##_type_name,        &get_datatype_info_c::TYPE##_type_name,          &get_datatype_info_c::TYPE##_type_name,       widen_entry::ok                 }, \

   339

    { &get_datatype_info_c::safe##TYPE##_type_name,  &get_datatype_info_c::TYPE##_type_name,          &get_datatype_info_c::TYPE##_type_name,       widen_entry::ok                 }, \

   340

    { &get_datatype_info_c::TYPE##_type_name,        &get_datatype_info_c::safe##TYPE##_type_name,    &get_datatype_info_c::TYPE##_type_name,       widen_entry::ok                 }, \

   341

    { &get_datatype_info_c::safe##TYPE##_type_name,  &get_datatype_info_c::safe##TYPE##_type_name,    &get_datatype_info_c::safe##TYPE##_type_name, widen_entry::ok                 },

   342

    __ANY_BIT(__or)

   343

#undef __or

   344

   345

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

   346

};

   347

   348

   349

/* table used by XOR and XORN operators, and xor_expression */

   350

const struct widen_entry widen_XOR_table[] = {

   351

#define __xor(TYPE)       \

   352

    { &get_datatype_info_c::TYPE##_type_name,        &get_datatype_info_c::TYPE##_type_name,          &get_datatype_info_c::TYPE##_type_name,       widen_entry::ok                 }, \

   353

    { &get_datatype_info_c::safe##TYPE##_type_name,  &get_datatype_info_c::TYPE##_type_name,          &get_datatype_info_c::TYPE##_type_name,       widen_entry::ok                 }, \

   354

    { &get_datatype_info_c::TYPE##_type_name,        &get_datatype_info_c::safe##TYPE##_type_name,    &get_datatype_info_c::TYPE##_type_name,       widen_entry::ok                 }, \

   355

    { &get_datatype_info_c::safe##TYPE##_type_name,  &get_datatype_info_c::safe##TYPE##_type_name,    &get_datatype_info_c::safe##TYPE##_type_name, widen_entry::ok                 },

   356

    __ANY_BIT(__xor)

   357

#undef __xor

   358

   359

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

   360

};

   361

   362

/**************************************************************/

   363

/**************************************************************/

   364

/**************************************************************/

   365

/*******                                                *******/

   366

/*******  TABLE 28: Standard comparison functions       *******/

   367

/*******                                                *******/

   368

/**************************************************************/

   369

/**************************************************************/

   370

/**************************************************************/

   371

/* table used by GT, GE, EQ, LE, LT, and NE  operators, and equivalent ST expressions. */

   372

const struct widen_entry widen_CMP_table[] = {

   373

#define __cmp(TYPE)       \

   374

    { &get_datatype_info_c::TYPE##_type_name,        &get_datatype_info_c::TYPE##_type_name,          &get_datatype_info_c::bool_type_name,         widen_entry::ok                 }, \

   375

    { &get_datatype_info_c::safe##TYPE##_type_name,  &get_datatype_info_c::TYPE##_type_name,          &get_datatype_info_c::bool_type_name,         widen_entry::ok                 }, \

   376

    { &get_datatype_info_c::TYPE##_type_name,        &get_datatype_info_c::safe##TYPE##_type_name,    &get_datatype_info_c::bool_type_name,         widen_entry::ok                 }, \

   377

    { &get_datatype_info_c::safe##TYPE##_type_name,  &get_datatype_info_c::safe##TYPE##_type_name,    &get_datatype_info_c::safebool_type_name,     widen_entry::ok                 },

   378

    __ANY_ELEMENTARY(__cmp)

   379

#undef __cmp

   380

   381

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

   382

};

   383

   384

   385

/* Search for a datatype inside a candidate_datatypes list.

   386

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

   387

 */

   388

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

   389

	if (NULL == datatype) 

   390

		return -1;

   391

   392

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

   393

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

   394

			return i;

   395

	/* Not found ! */

   396

	return -1;

   397

}

   398

   399

/* Remove a datatype inside a candidate_datatypes list.

   400

 * Returns: If successful it returns true, false otherwise.

   401

 */

   402

bool remove_from_candidate_datatype_list(symbol_c *datatype, std::vector <symbol_c *> &candidate_datatypes) {

   403

	int pos = search_in_candidate_datatype_list(datatype, candidate_datatypes);

   404

	if (pos < 0)

   405

		return false;

   406

   407

	candidate_datatypes.erase(candidate_datatypes.begin() + pos);

   408

	return true;

   409

}

   410

   411

   412

   413

/* Intersect two candidate_datatype_lists.

   414

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

   415

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

   416

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

   417

 */

   418

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

   419

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

   420

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

   421

		return;

   422

   423

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

   424

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

   425

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

   426

		 */

   427

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

   428

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

   429

			list1->candidate_datatypes.erase(i);

   430

		else i++;

   431

	}

   432

}

   433

   434

   435

   436

   437

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

   438

void intersect_prev_candidate_datatype_lists(il_instruction_c *symbol) {

   439

	if (symbol->prev_il_instruction.empty())

   440

		return;

   441

   442

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

   443

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

   444

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

   445

	}  

   446

}

   447

   448

   449

   450

   451

   452

   453