mirror of
https://github.com/thiagoralves/OpenPLC_v3.git
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165 lines
6.6 KiB
C++
165 lines
6.6 KiB
C++
/*
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* matiec - a compiler for the programming languages defined in IEC 61131-3
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* Copyright (C) 2003-2011 Mario de Sousa (msousa@fe.up.pt)
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* Copyright (C) 2007-2011 Laurent Bessard and Edouard Tisserant
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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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/*
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* An IEC 61131-3 compiler.
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*
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* Based on the
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* FINAL DRAFT - IEC 61131-3, 2nd Ed. (2001-12-10)
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*
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*/
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#ifndef _MAIN_HH
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#define _MAIN_HH
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/* Compiler options, specified at runtime on the command line */
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typedef struct {
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/* options specific to stage1_2 */
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bool allow_void_datatype; /* Allow declaration of functions returning VOID */
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bool allow_missing_var_in; /* Allow definition and invocation of POUs with no input, output and in_out parameters! */
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bool disable_implicit_en_eno; /* Disable the generation of implicit EN and ENO parameters on functions and Function Blocks */
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bool pre_parsing; /* Support forward references (Run a pre-parsing phase before the defintive parsing phase that builds the AST) */
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bool safe_extensions; /* support SAFE_* datatypes defined in PLCOpen TC5 "Safety Software Technical Specification - Part 1" v1.0 */
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bool full_token_loc; /* error messages specify full token location */
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bool conversion_functions; /* Create a conversion function for derived datatype */
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bool nested_comments; /* Allow the use of nested comments. */
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bool ref_standard_extensions; /* Allow the use of REFerences (keywords REF_TO, REF, DREF, ^, NULL). */
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bool ref_nonstand_extensions; /* Allow the use of non-standard extensions to REF_TO datatypes: REF_TO ANY, and REF_TO in struct elements! */
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bool nonliteral_in_array_size; /* Allow the use of constant non-literals when specifying size of arrays (ARRAY [1..max] OF INT) */
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const char *includedir; /* Include directory, where included files will be searched for... */
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/* options specific to stage3 */
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bool relaxed_datatype_model; /* Use the relaxed datatype equivalence model, instead of the default strict equivalence model */
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} runtime_options_t;
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extern runtime_options_t runtime_options;
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/* Function used throughout the code --> used to report failed assertions (i.e. internal compiler errors)! */
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#include <stddef.h> /* required for NULL */
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#define ERROR error_exit(__FILE__,__LINE__)
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#define ERROR_MSG(msg, ...) error_exit(__FILE__,__LINE__, msg, ## __VA_ARGS__)
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extern void error_exit(const char *file_name, int line_no, const char *errmsg = NULL, ...);
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/* Get the definition of INT16_MAX, INT16_MIN, UINT64_MAX, INT64_MAX, INT64_MIN, ... */
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#ifndef __STDC_LIMIT_MACROS
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#define __STDC_LIMIT_MACROS /* required to have UINTxx_MAX defined when including stdint.h from C++ source code. */
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#endif
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#include <stdint.h>
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#include <limits>
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#ifndef UINT64_MAX
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#define UINT64_MAX (std::numeric_limits< uint64_t >::max())
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#endif
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#ifndef INT64_MAX
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#define INT64_MAX (std::numeric_limits< int64_t >::max())
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#endif
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#ifndef INT64_MIN
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#define INT64_MIN (std::numeric_limits< int64_t >::min())
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#endif
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/* Determine, for the current platform, which datas types (float, double or long double) use 64 and 32 bits. */
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/* NOTE: We cant use sizeof() in pre-processor directives, so we have to do it another way... */
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/* CURIOSITY: We can use sizeof() and offsetof() inside static_assert() but:
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* - this only allows us to make assertions, and not #define new macros
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* - is only available in the C standard [ISO/IEC 9899:2011] and the C++ 0X draft standard [Becker 2008]. It is not available in C99.
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* https://www.securecoding.cert.org/confluence/display/seccode/DCL03-C.+Use+a+static+assertion+to+test+the+value+of+a+constant+expression
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* struct {int a, b, c, d} header_t;
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* e.g.: static_assert(offsetof(struct header_t, c) == 8, "Compile time error message.");
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*/
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#include <float.h>
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#if (LDBL_MANT_DIG == 53) /* NOTE: 64 bit IEC559 real has 53 bits for mantissa! */
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#define real64_tX long_double /* so we can later use #if (real64_t == long_double) directives in the code! */
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#define real64_t long double /* NOTE: no underscore '_' between 'long' and 'double' */
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#define REAL64_MAX LDBL_MAX
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#elif ( DBL_MANT_DIG == 53) /* NOTE: 64 bit IEC559 real has 53 bits for mantissa! */
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#define real64_tX double
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#define real64_t double
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#define REAL64_MAX DBL_MAX
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#elif ( FLT_MANT_DIG == 53) /* NOTE: 64 bit IEC559 real has 53 bits for mantissa! */
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#define real64_tX float
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#define real64_t float
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#define REAL64_MAX FLT_MAX
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#else
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#error Could not find a 64 bit floating point data type on this platform. Aborting...
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#endif
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#if (LDBL_MANT_DIG == 24) /* NOTE: 32 bit IEC559 real has 24 bits for mantissa! */
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#define real32_tX long_double /* so we can later use #if (real32_t == long_double) directives in the code! */
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#define real32_t long double /* NOTE: no underscore '_' between 'long' and 'double' */
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#define REAL32_MAX LDBL_MAX
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#elif ( DBL_MANT_DIG == 24) /* NOTE: 32 bit IEC559 real has 24 bits for mantissa! */
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#define real32_tX double
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#define real32_t double
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#define REAL32_MAX DBL_MAX
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#elif ( FLT_MANT_DIG == 24) /* NOTE: 32 bit IEC559 real has 24 bits for mantissa! */
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#define real32_tX float
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#define real32_t float
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#define REAL32_MAX FLT_MAX
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#else
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#error Could not find a 32 bit floating point data type on this platform. Aborting...
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#endif
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#include <math.h>
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#ifndef INFINITY
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#error Could not find the macro that defines the value for INFINITY in the current platform.
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#endif
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#ifndef NAN
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#error Could not find the macro that defines the value for NAN in the current platform.
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#endif
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/* get the printf format macros for printing variables of fixed data size
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* e.g. int64_t v; printf("value=%"PRId64" !!\n", v);
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* e.g. uint64_t v; printf("value=%"PRIu64" !!\n", v);
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* e.g. uint64_t v; printf("value=%"PRIx64" !!\n", v); // hexadecimal format
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*/
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#ifndef __STDC_FORMAT_MACROS
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#define __STDC_FORMAT_MACROS
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#endif
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#include <inttypes.h>
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#endif // #ifndef _MAIN_HH
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