1 /* gfortran header file
2 Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008
3 Free Software Foundation, Inc.
4 Contributed by Andy Vaught
6 This file is part of GCC.
8 GCC is free software; you can redistribute it and/or modify it under
9 the terms of the GNU General Public License as published by the Free
10 Software Foundation; either version 3, or (at your option) any later
13 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
14 WARRANTY; without even the implied warranty of MERCHANTABILITY or
15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
18 You should have received a copy of the GNU General Public License
19 along with GCC; see the file COPYING3. If not see
20 <http://www.gnu.org/licenses/>. */
22 #ifndef GCC_GFORTRAN_H
23 #define GCC_GFORTRAN_H
25 /* It's probably insane to have this large of a header file, but it
26 seemed like everything had to be recompiled anyway when a change
27 was made to a header file, and there were ordering issues with
28 multiple header files. Besides, Microsoft's winnt.h was 250k last
29 time I looked, so by comparison this is perfectly reasonable. */
31 /* Declarations common to the front-end and library are put in
32 libgfortran/libgfortran_frontend.h */
33 #include "libgfortran.h"
38 #include "coretypes.h"
40 #include "splay-tree.h"
41 /* The following ifdefs are recommended by the autoconf documentation
42 for any code using alloca. */
44 /* AIX requires this to be the first thing in the file. */
46 #else /* not __GNUC__ */
49 #else /* do not HAVE_ALLOCA_H */
53 #ifndef alloca /* predefined by HP cc +Olibcalls */
55 #endif /* not predefined */
57 #endif /* do not HAVE_ALLOCA_H */
58 #endif /* not __GNUC__ */
60 /* Major control parameters. */
62 #define GFC_MAX_SYMBOL_LEN 63 /* Must be at least 63 for F2003. */
63 #define GFC_MAX_BINDING_LABEL_LEN 126 /* (2 * GFC_MAX_SYMBOL_LEN) */
64 #define GFC_MAX_LINE 132 /* Characters beyond this are not seen. */
65 #define GFC_LETTERS 26 /* Number of letters in the alphabet. */
67 #define MAX_SUBRECORD_LENGTH 2147483639 /* 2**31-9 */
70 #define free(x) Use_gfc_free_instead_of_free()
71 #define gfc_is_whitespace(c) ((c==' ') || (c=='\t'))
74 #define NULL ((void *) 0)
78 #define stringize(x) expand_macro(x)
79 #define expand_macro(x) # x
81 /* For the runtime library, a standard prefix is a requirement to
82 avoid cluttering the namespace with things nobody asked for. It's
83 ugly to look at and a pain to type when you add the prefix by hand,
84 so we hide it behind a macro. */
85 #define PREFIX(x) "_gfortran_" x
88 #define BLANK_COMMON_NAME "__BLNK__"
90 /* Macro to initialize an mstring structure. */
91 #define minit(s, t) { s, NULL, t }
93 /* Structure for storing strings to be matched by gfc_match_string. */
104 /*************************** Enums *****************************/
106 /* Used when matching and resolving data I/O transfer statements. */
109 { M_READ, M_WRITE, M_PRINT, M_INQUIRE }
112 /* The author remains confused to this day about the convention of
113 returning '0' for 'SUCCESS'... or was it the other way around? The
114 following enum makes things much more readable. We also start
115 values off at one instead of zero. */
117 /* FIXME: This macro is temporary until we convert everything. */
120 { SUCCESS = 1, FAILURE }
123 /* This is returned by gfc_notification_std to know if, given the flags
124 that were given (-std=, -pedantic) we should issue an error, a warning
128 { SILENT, WARNING, ERROR }
131 /* Matchers return one of these three values. The difference between
132 MATCH_NO and MATCH_ERROR is that MATCH_ERROR means that a match was
133 successful, but that something non-syntactic is wrong and an error
134 has already been issued. */
137 { MATCH_NO = 1, MATCH_YES, MATCH_ERROR }
141 { FORM_FREE, FORM_FIXED, FORM_UNKNOWN }
144 /* Basic types. BT_VOID is used by ISO C Binding so funcs like c_f_pointer
145 can take any arg with the pointer attribute as a param. */
147 { BT_UNKNOWN = 1, BT_INTEGER, BT_REAL, BT_COMPLEX,
148 BT_LOGICAL, BT_CHARACTER, BT_DERIVED, BT_PROCEDURE, BT_HOLLERITH,
153 /* Expression node types. */
155 { EXPR_OP = 1, EXPR_FUNCTION, EXPR_CONSTANT, EXPR_VARIABLE,
156 EXPR_SUBSTRING, EXPR_STRUCTURE, EXPR_ARRAY, EXPR_NULL
162 { AS_EXPLICIT = 1, AS_ASSUMED_SHAPE, AS_DEFERRED,
163 AS_ASSUMED_SIZE, AS_UNKNOWN
168 { AR_FULL = 1, AR_ELEMENT, AR_SECTION, AR_UNKNOWN }
171 /* Statement label types. */
173 { ST_LABEL_UNKNOWN = 1, ST_LABEL_TARGET,
174 ST_LABEL_BAD_TARGET, ST_LABEL_FORMAT
178 /* Intrinsic operators. */
180 { GFC_INTRINSIC_BEGIN = 0,
181 INTRINSIC_NONE = -1, INTRINSIC_UPLUS = GFC_INTRINSIC_BEGIN,
182 INTRINSIC_UMINUS, INTRINSIC_PLUS, INTRINSIC_MINUS, INTRINSIC_TIMES,
183 INTRINSIC_DIVIDE, INTRINSIC_POWER, INTRINSIC_CONCAT,
184 INTRINSIC_AND, INTRINSIC_OR, INTRINSIC_EQV, INTRINSIC_NEQV,
185 /* ==, /=, >, >=, <, <= */
186 INTRINSIC_EQ, INTRINSIC_NE, INTRINSIC_GT, INTRINSIC_GE,
187 INTRINSIC_LT, INTRINSIC_LE,
188 /* .EQ., .NE., .GT., .GE., .LT., .LE. (OS = Old-Style) */
189 INTRINSIC_EQ_OS, INTRINSIC_NE_OS, INTRINSIC_GT_OS, INTRINSIC_GE_OS,
190 INTRINSIC_LT_OS, INTRINSIC_LE_OS,
191 INTRINSIC_NOT, INTRINSIC_USER, INTRINSIC_ASSIGN,
192 INTRINSIC_PARENTHESES, GFC_INTRINSIC_END /* Sentinel */
197 /* This macro is the number of intrinsic operators that exist.
198 Assumptions are made about the numbering of the interface_op enums. */
199 #define GFC_INTRINSIC_OPS GFC_INTRINSIC_END
201 /* Arithmetic results. */
203 { ARITH_OK = 1, ARITH_OVERFLOW, ARITH_UNDERFLOW, ARITH_NAN,
204 ARITH_DIV0, ARITH_INCOMMENSURATE, ARITH_ASYMMETRIC
211 ST_ARITHMETIC_IF, ST_ALLOCATE, ST_ATTR_DECL, ST_BACKSPACE, ST_BLOCK_DATA,
212 ST_CALL, ST_CASE, ST_CLOSE, ST_COMMON, ST_CONTINUE, ST_CONTAINS, ST_CYCLE,
213 ST_DATA, ST_DATA_DECL, ST_DEALLOCATE, ST_DO, ST_ELSE, ST_ELSEIF,
214 ST_ELSEWHERE, ST_END_BLOCK_DATA, ST_ENDDO, ST_IMPLIED_ENDDO,
215 ST_END_FILE, ST_FINAL, ST_FLUSH, ST_END_FORALL, ST_END_FUNCTION, ST_ENDIF,
216 ST_END_INTERFACE, ST_END_MODULE, ST_END_PROGRAM, ST_END_SELECT,
217 ST_END_SUBROUTINE, ST_END_WHERE, ST_END_TYPE, ST_ENTRY, ST_EQUIVALENCE,
218 ST_EXIT, ST_FORALL, ST_FORALL_BLOCK, ST_FORMAT, ST_FUNCTION, ST_GOTO,
219 ST_IF_BLOCK, ST_IMPLICIT, ST_IMPLICIT_NONE, ST_IMPORT, ST_INQUIRE, ST_INTERFACE,
220 ST_PARAMETER, ST_MODULE, ST_MODULE_PROC, ST_NAMELIST, ST_NULLIFY, ST_OPEN,
221 ST_PAUSE, ST_PRIVATE, ST_PROGRAM, ST_PUBLIC, ST_READ, ST_RETURN, ST_REWIND,
222 ST_STOP, ST_SUBROUTINE, ST_TYPE, ST_USE, ST_WHERE_BLOCK, ST_WHERE, ST_WAIT,
223 ST_WRITE, ST_ASSIGNMENT, ST_POINTER_ASSIGNMENT, ST_SELECT_CASE, ST_SEQUENCE,
224 ST_SIMPLE_IF, ST_STATEMENT_FUNCTION, ST_DERIVED_DECL, ST_LABEL_ASSIGNMENT,
225 ST_ENUM, ST_ENUMERATOR, ST_END_ENUM,
226 ST_OMP_ATOMIC, ST_OMP_BARRIER, ST_OMP_CRITICAL, ST_OMP_END_CRITICAL,
227 ST_OMP_END_DO, ST_OMP_END_MASTER, ST_OMP_END_ORDERED, ST_OMP_END_PARALLEL,
228 ST_OMP_END_PARALLEL_DO, ST_OMP_END_PARALLEL_SECTIONS,
229 ST_OMP_END_PARALLEL_WORKSHARE, ST_OMP_END_SECTIONS, ST_OMP_END_SINGLE,
230 ST_OMP_END_WORKSHARE, ST_OMP_DO, ST_OMP_FLUSH, ST_OMP_MASTER, ST_OMP_ORDERED,
231 ST_OMP_PARALLEL, ST_OMP_PARALLEL_DO, ST_OMP_PARALLEL_SECTIONS,
232 ST_OMP_PARALLEL_WORKSHARE, ST_OMP_SECTIONS, ST_OMP_SECTION, ST_OMP_SINGLE,
233 ST_OMP_THREADPRIVATE, ST_OMP_WORKSHARE, ST_OMP_TASK, ST_OMP_END_TASK,
234 ST_OMP_TASKWAIT, ST_PROCEDURE,
235 ST_GET_FCN_CHARACTERISTICS, ST_NONE
240 /* Types of interfaces that we can have. Assignment interfaces are
241 considered to be intrinsic operators. */
244 INTERFACE_NAMELESS = 1, INTERFACE_GENERIC,
245 INTERFACE_INTRINSIC_OP, INTERFACE_USER_OP, INTERFACE_ABSTRACT
249 /* Symbol flavors: these are all mutually exclusive.
250 10 elements = 4 bits. */
251 typedef enum sym_flavor
253 FL_UNKNOWN = 0, FL_PROGRAM, FL_BLOCK_DATA, FL_MODULE, FL_VARIABLE,
254 FL_PARAMETER, FL_LABEL, FL_PROCEDURE, FL_DERIVED, FL_NAMELIST,
259 /* Procedure types. 7 elements = 3 bits. */
260 typedef enum procedure_type
261 { PROC_UNKNOWN, PROC_MODULE, PROC_INTERNAL, PROC_DUMMY,
262 PROC_INTRINSIC, PROC_ST_FUNCTION, PROC_EXTERNAL
267 typedef enum sym_intent
268 { INTENT_UNKNOWN = 0, INTENT_IN, INTENT_OUT, INTENT_INOUT
273 typedef enum gfc_access
274 { ACCESS_UNKNOWN = 0, ACCESS_PUBLIC, ACCESS_PRIVATE
278 /* Flags to keep track of where an interface came from.
279 4 elements = 2 bits. */
281 { IFSRC_UNKNOWN = 0, IFSRC_DECL, IFSRC_IFBODY, IFSRC_USAGE
285 /* Whether a SAVE attribute was set explicitly or implicitly. */
286 typedef enum save_state
287 { SAVE_NONE = 0, SAVE_EXPLICIT, SAVE_IMPLICIT
291 /* Strings for all symbol attributes. We use these for dumping the
292 parse tree, in error messages, and also when reading and writing
293 modules. In symbol.c. */
294 extern const mstring flavors[];
295 extern const mstring procedures[];
296 extern const mstring intents[];
297 extern const mstring access_types[];
298 extern const mstring ifsrc_types[];
299 extern const mstring save_status[];
301 /* Enumeration of all the generic intrinsic functions. Used by the
302 backend for identification of a function. */
306 /* GFC_ISYM_NONE is used for intrinsics which will never be seen by
307 the backend (e.g. KIND). */
338 GFC_ISYM_COMMAND_ARGUMENT_COUNT,
348 GFC_ISYM_DATE_AND_TIME,
352 GFC_ISYM_DOT_PRODUCT,
359 GFC_ISYM_ERFC_SCALED,
380 GFC_ISYM_GET_COMMAND,
381 GFC_ISYM_GET_COMMAND_ARGUMENT,
384 GFC_ISYM_GET_ENVIRONMENT_VARIABLE,
410 GFC_ISYM_IS_IOSTAT_END,
411 GFC_ISYM_IS_IOSTAT_EOR,
441 GFC_ISYM_MAXEXPONENT,
448 GFC_ISYM_MINEXPONENT,
468 GFC_ISYM_RANDOM_NUMBER,
469 GFC_ISYM_RANDOM_SEED,
482 GFC_ISYM_SET_EXPONENT,
502 GFC_ISYM_SYSTEM_CLOCK,
522 typedef enum gfc_isym_id gfc_isym_id;
527 GFC_INIT_REAL_OFF = 0,
531 GFC_INIT_REAL_NEG_INF
537 GFC_INIT_LOGICAL_OFF = 0,
538 GFC_INIT_LOGICAL_FALSE,
539 GFC_INIT_LOGICAL_TRUE
545 GFC_INIT_CHARACTER_OFF = 0,
546 GFC_INIT_CHARACTER_ON
548 init_local_character;
552 GFC_INIT_INTEGER_OFF = 0,
557 /************************* Structures *****************************/
559 /* Used for keeping things in balanced binary trees. */
560 #define BBT_HEADER(self) int priority; struct self *left, *right
562 #define NAMED_INTCST(a,b,c,d) a,
565 ISOFORTRANENV_INVALID = -1,
566 #include "iso-fortran-env.def"
567 ISOFORTRANENV_LAST, ISOFORTRANENV_NUMBER = ISOFORTRANENV_LAST
569 iso_fortran_env_symbol;
572 #define NAMED_INTCST(a,b,c,d) a,
573 #define NAMED_REALCST(a,b,c) a,
574 #define NAMED_CMPXCST(a,b,c) a,
575 #define NAMED_LOGCST(a,b,c) a,
576 #define NAMED_CHARKNDCST(a,b,c) a,
577 #define NAMED_CHARCST(a,b,c) a,
578 #define DERIVED_TYPE(a,b,c) a,
579 #define PROCEDURE(a,b) a,
582 ISOCBINDING_INVALID = -1,
583 #include "iso-c-binding.def"
585 ISOCBINDING_NUMBER = ISOCBINDING_LAST
587 iso_c_binding_symbol;
592 #undef NAMED_CHARKNDCST
599 INTMOD_NONE = 0, INTMOD_ISO_FORTRAN_ENV, INTMOD_ISO_C_BINDING
605 char name[GFC_MAX_SYMBOL_LEN + 1];
606 int value; /* Used for both integer and character values. */
611 /* Array of structs, where the structs represent the C interop kinds.
612 The list will be implemented based on a hash of the kind name since
613 these could be accessed multiple times.
614 Declared in trans-types.c as a global, since it's in that file
615 that the list is initialized. */
616 extern CInteropKind_t c_interop_kinds_table[];
618 /* Symbol attribute structure. */
621 /* Variable attributes. */
622 unsigned allocatable:1, dimension:1, external:1, intrinsic:1,
623 optional:1, pointer:1, target:1, value:1, volatile_:1,
624 dummy:1, result:1, assign:1, threadprivate:1, not_always_present:1,
625 implied_index:1, subref_array_pointer:1, proc_pointer:1;
627 ENUM_BITFIELD (save_state) save:2;
629 unsigned data:1, /* Symbol is named in a DATA statement. */
630 is_protected:1, /* Symbol has been marked as protected. */
631 use_assoc:1, /* Symbol has been use-associated. */
632 use_only:1, /* Symbol has been use-associated, with ONLY. */
633 use_rename:1, /* Symbol has been use-associated and renamed. */
634 imported:1; /* Symbol has been associated by IMPORT. */
636 unsigned in_namelist:1, in_common:1, in_equivalence:1;
637 unsigned function:1, subroutine:1, procedure:1;
638 unsigned generic:1, generic_copy:1;
639 unsigned implicit_type:1; /* Type defined via implicit rules. */
640 unsigned untyped:1; /* No implicit type could be found. */
642 unsigned is_bind_c:1; /* say if is bound to C */
644 /* These flags are both in the typespec and attribute. The attribute
645 list is what gets read from/written to a module file. The typespec
646 is created from a decl being processed. */
647 unsigned is_c_interop:1; /* It's c interoperable. */
648 unsigned is_iso_c:1; /* Symbol is from iso_c_binding. */
650 /* Function/subroutine attributes */
651 unsigned sequence:1, elemental:1, pure:1, recursive:1;
652 unsigned unmaskable:1, masked:1, contained:1, mod_proc:1, abstract:1;
654 /* This is set if the subroutine doesn't return. Currently, this
655 is only possible for intrinsic subroutines. */
658 /* Set if this procedure is an alternate entry point. These procedures
659 don't have any code associated, and the backend will turn them into
660 thunks to the master function. */
663 /* Set if this is the master function for a procedure with multiple
665 unsigned entry_master:1;
667 /* Set if this is the master function for a function with multiple
668 entry points where characteristics of the entry points differ. */
669 unsigned mixed_entry_master:1;
671 /* Set if a function must always be referenced by an explicit interface. */
672 unsigned always_explicit:1;
674 /* Set if the symbol has been referenced in an expression. No further
675 modification of type or type parameters is permitted. */
676 unsigned referenced:1;
678 /* Set if the symbol has ambiguous interfaces. */
679 unsigned ambiguous_interfaces:1;
681 /* Set if this is the symbol for the main program. */
682 unsigned is_main_program:1;
684 /* Mutually exclusive multibit attributes. */
685 ENUM_BITFIELD (gfc_access) access:2;
686 ENUM_BITFIELD (sym_intent) intent:2;
687 ENUM_BITFIELD (sym_flavor) flavor:4;
688 ENUM_BITFIELD (ifsrc) if_source:2;
690 ENUM_BITFIELD (procedure_type) proc:3;
692 /* Special attributes for Cray pointers, pointees. */
693 unsigned cray_pointer:1, cray_pointee:1;
695 /* The symbol is a derived type with allocatable components, pointer
696 components or private components, possibly nested. zero_comp
697 is true if the derived type has no component at all. */
698 unsigned alloc_comp:1, pointer_comp:1, private_comp:1, zero_comp:1;
700 /* The namespace where the VOLATILE attribute has been set. */
701 struct gfc_namespace *volatile_ns;
706 /* We need to store source lines as sequences of multibyte source
707 characters. We define here a type wide enough to hold any multibyte
708 source character, just like libcpp does. A 32-bit type is enough. */
710 #if HOST_BITS_PER_INT >= 32
711 typedef unsigned int gfc_char_t;
712 #elif HOST_BITS_PER_LONG >= 32
713 typedef unsigned long gfc_char_t;
714 #elif defined(HAVE_LONG_LONG) && (HOST_BITS_PER_LONGLONG >= 32)
715 typedef unsigned long long gfc_char_t;
717 # error "Cannot find an integer type with at least 32 bits"
721 /* The following three structures are used to identify a location in
724 gfc_file is used to maintain a tree of the source files and how
725 they include each other
727 gfc_linebuf holds a single line of source code and information
728 which file it resides in
730 locus point to the sourceline and the character in the source
734 typedef struct gfc_file
736 struct gfc_file *next, *up;
737 int inclusion_line, line;
741 typedef struct gfc_linebuf
743 source_location location;
744 struct gfc_file *file;
745 struct gfc_linebuf *next;
753 #define gfc_linebuf_header_size (offsetof (gfc_linebuf, line))
755 #define gfc_linebuf_linenum(LBUF) (LOCATION_LINE ((LBUF)->location))
763 /* In order for the "gfc" format checking to work correctly, you must
764 have declared a typedef locus first. */
765 #if GCC_VERSION >= 4001
766 #define ATTRIBUTE_GCC_GFC(m, n) __attribute__ ((__format__ (__gcc_gfc__, m, n))) ATTRIBUTE_NONNULL(m)
768 #define ATTRIBUTE_GCC_GFC(m, n) ATTRIBUTE_NONNULL(m)
772 extern int gfc_suppress_error;
775 /* Character length structures hold the expression that gives the
776 length of a character variable. We avoid putting these into
777 gfc_typespec because doing so prevents us from doing structure
778 copies and forces us to deallocate any typespecs we create, as well
779 as structures that contain typespecs. They also can have multiple
780 character typespecs pointing to them.
782 These structures form a singly linked list within the current
783 namespace and are deallocated with the namespace. It is possible to
784 end up with gfc_charlen structures that have nothing pointing to them. */
786 typedef struct gfc_charlen
788 struct gfc_expr *length;
789 struct gfc_charlen *next;
790 bool length_from_typespec; /* Length from explicit array ctor typespec? */
797 #define gfc_get_charlen() XCNEW (gfc_charlen)
799 /* Type specification structure. FIXME: derived and cl could be union??? */
804 struct gfc_symbol *derived;
805 gfc_charlen *cl; /* For character types only. */
806 struct gfc_symbol *interface; /* For PROCEDURE declarations. */
813 /* Array specification. */
816 int rank; /* A rank of zero means that a variable is a scalar. */
818 struct gfc_expr *lower[GFC_MAX_DIMENSIONS], *upper[GFC_MAX_DIMENSIONS];
820 /* These two fields are used with the Cray Pointer extension. */
821 bool cray_pointee; /* True iff this spec belongs to a cray pointee. */
822 bool cp_was_assumed; /* AS_ASSUMED_SIZE cp arrays are converted to
823 AS_EXPLICIT, but we want to remember that we
829 #define gfc_get_array_spec() XCNEW (gfc_array_spec)
832 /* Components of derived types. */
833 typedef struct gfc_component
838 int pointer, allocatable, dimension;
844 struct gfc_expr *initializer;
845 struct gfc_component *next;
849 #define gfc_get_component() XCNEW (gfc_component)
851 /* Formal argument lists are lists of symbols. */
852 typedef struct gfc_formal_arglist
854 /* Symbol representing the argument at this position in the arglist. */
855 struct gfc_symbol *sym;
856 /* Points to the next formal argument. */
857 struct gfc_formal_arglist *next;
861 #define gfc_get_formal_arglist() XCNEW (gfc_formal_arglist)
864 /* The gfc_actual_arglist structure is for actual arguments. */
865 typedef struct gfc_actual_arglist
868 /* Alternate return label when the expr member is null. */
869 struct gfc_st_label *label;
871 /* This is set to the type of an eventual omitted optional
872 argument. This is used to determine if a hidden string length
873 argument has to be added to a function call. */
876 struct gfc_expr *expr;
877 struct gfc_actual_arglist *next;
881 #define gfc_get_actual_arglist() XCNEW (gfc_actual_arglist)
884 /* Because a symbol can belong to multiple namelists, they must be
885 linked externally to the symbol itself. */
886 typedef struct gfc_namelist
888 struct gfc_symbol *sym;
889 struct gfc_namelist *next;
893 #define gfc_get_namelist() XCNEW (gfc_namelist)
898 OMP_LIST_FIRSTPRIVATE,
899 OMP_LIST_LASTPRIVATE,
900 OMP_LIST_COPYPRIVATE,
904 OMP_LIST_REDUCTION_FIRST = OMP_LIST_PLUS,
916 OMP_LIST_REDUCTION_LAST = OMP_LIST_IEOR,
920 /* Because a symbol can belong to multiple namelists, they must be
921 linked externally to the symbol itself. */
922 typedef struct gfc_omp_clauses
924 struct gfc_expr *if_expr;
925 struct gfc_expr *num_threads;
926 gfc_namelist *lists[OMP_LIST_NUM];
936 struct gfc_expr *chunk_size;
943 OMP_DEFAULT_FIRSTPRIVATE
946 bool nowait, ordered, untied;
950 #define gfc_get_omp_clauses() XCNEW (gfc_omp_clauses)
953 /* The gfc_st_label structure is a doubly linked list attached to a
954 namespace that records the usage of statement labels within that
956 /* TODO: Make format/statement specifics a union. */
957 typedef struct gfc_st_label
959 BBT_HEADER(gfc_st_label);
963 gfc_sl_type defined, referenced;
965 struct gfc_expr *format;
974 /* gfc_interface()-- Interfaces are lists of symbols strung together. */
975 typedef struct gfc_interface
977 struct gfc_symbol *sym;
979 struct gfc_interface *next;
983 #define gfc_get_interface() XCNEW (gfc_interface)
985 /* User operator nodes. These are like stripped down symbols. */
991 struct gfc_namespace *ns;
996 /* Symbol nodes. These are important things. They are what the
997 standard refers to as "entities". The possibly multiple names that
998 refer to the same entity are accomplished by a binary tree of
999 symtree structures that is balanced by the red-black method-- more
1000 than one symtree node can point to any given symbol. */
1002 typedef struct gfc_symbol
1004 const char *name; /* Primary name, before renaming */
1005 const char *module; /* Module this symbol came from */
1009 symbol_attribute attr;
1011 /* The formal member points to the formal argument list if the
1012 symbol is a function or subroutine name. If the symbol is a
1013 generic name, the generic member points to the list of
1016 gfc_interface *generic;
1017 gfc_access component_access;
1019 gfc_formal_arglist *formal;
1020 struct gfc_namespace *formal_ns;
1022 /* The namespace containing type-associated procedure symbols. */
1023 /* TODO: Make this union with formal? */
1024 struct gfc_namespace *f2k_derived;
1026 struct gfc_expr *value; /* Parameter/Initializer value */
1028 struct gfc_symbol *result; /* function result symbol */
1029 gfc_component *components; /* Derived type components */
1031 /* Defined only for Cray pointees; points to their pointer. */
1032 struct gfc_symbol *cp_pointer;
1034 struct gfc_symbol *common_next; /* Links for COMMON syms */
1036 /* This is in fact a gfc_common_head but it is only used for pointer
1037 comparisons to check if symbols are in the same common block. */
1038 struct gfc_common_head* common_head;
1040 /* Make sure setup code for dummy arguments is generated in the correct
1046 gfc_namelist *namelist, *namelist_tail;
1048 /* Change management fields. Symbols that might be modified by the
1049 current statement have the mark member nonzero and are kept in a
1050 singly linked list through the tlink field. Of these symbols,
1051 symbols with old_symbol equal to NULL are symbols created within
1052 the current statement. Otherwise, old_symbol points to a copy of
1055 struct gfc_symbol *old_symbol, *tlink;
1056 unsigned mark:1, gfc_new:1;
1057 /* Nonzero if all equivalences associated with this symbol have been
1059 unsigned equiv_built:1;
1060 /* Set if this variable is used as an index name in a FORALL. */
1061 unsigned forall_index:1;
1063 struct gfc_namespace *ns; /* namespace containing this symbol */
1067 /* Identity of the intrinsic module the symbol comes from, or
1068 INTMOD_NONE if it's not imported from a intrinsic module. */
1069 intmod_id from_intmod;
1070 /* Identity of the symbol from intrinsic modules, from enums maintained
1071 separately by each intrinsic module. Used together with from_intmod,
1072 it uniquely identifies a symbol from an intrinsic module. */
1075 /* This may be repetitive, since the typespec now has a binding
1077 char binding_label[GFC_MAX_BINDING_LABEL_LEN + 1];
1078 /* Store a reference to the common_block, if this symbol is in one. */
1079 struct gfc_common_head *common_block;
1084 /* This structure is used to keep track of symbols in common blocks. */
1085 typedef struct gfc_common_head
1088 char use_assoc, saved, threadprivate;
1089 char name[GFC_MAX_SYMBOL_LEN + 1];
1090 struct gfc_symbol *head;
1091 char binding_label[GFC_MAX_BINDING_LABEL_LEN + 1];
1096 #define gfc_get_common_head() XCNEW (gfc_common_head)
1099 /* A list of all the alternate entry points for a procedure. */
1101 typedef struct gfc_entry_list
1103 /* The symbol for this entry point. */
1105 /* The zero-based id of this entry point. */
1107 /* The LABEL_EXPR marking this entry point. */
1109 /* The nest item in the list. */
1110 struct gfc_entry_list *next;
1114 #define gfc_get_entry_list() \
1115 (gfc_entry_list *) gfc_getmem(sizeof(gfc_entry_list))
1117 /* Within a namespace, symbols are pointed to by symtree nodes that
1118 are linked together in a balanced binary tree. There can be
1119 several symtrees pointing to the same symbol node via USE
1122 typedef struct gfc_symtree
1124 BBT_HEADER (gfc_symtree);
1129 gfc_symbol *sym; /* Symbol associated with this node */
1131 gfc_common_head *common;
1138 /* A linked list of derived types in the namespace. */
1139 typedef struct gfc_dt_list
1141 struct gfc_symbol *derived;
1142 struct gfc_dt_list *next;
1146 #define gfc_get_dt_list() XCNEW (gfc_dt_list)
1148 /* A list of all derived types. */
1149 extern gfc_dt_list *gfc_derived_types;
1151 /* A namespace describes the contents of procedure, module or
1153 /* ??? Anything else use these? */
1155 typedef struct gfc_namespace
1157 /* Tree containing all the symbols in this namespace. */
1158 gfc_symtree *sym_root;
1159 /* Tree containing all the user-defined operators in the namespace. */
1160 gfc_symtree *uop_root;
1161 /* Tree containing all the common blocks. */
1162 gfc_symtree *common_root;
1163 /* Linked list of finalizer procedures. */
1164 struct gfc_finalizer *finalizers;
1166 /* If set_flag[letter] is set, an implicit type has been set for letter. */
1167 int set_flag[GFC_LETTERS];
1168 /* Keeps track of the implicit types associated with the letters. */
1169 gfc_typespec default_type[GFC_LETTERS];
1171 /* If this is a namespace of a procedure, this points to the procedure. */
1172 struct gfc_symbol *proc_name;
1173 /* If this is the namespace of a unit which contains executable
1174 code, this points to it. */
1175 struct gfc_code *code;
1177 /* Points to the equivalences set up in this namespace. */
1178 struct gfc_equiv *equiv;
1180 /* Points to the equivalence groups produced by trans_common. */
1181 struct gfc_equiv_list *equiv_lists;
1183 gfc_interface *op[GFC_INTRINSIC_OPS];
1185 /* Points to the parent namespace, i.e. the namespace of a module or
1186 procedure in which the procedure belonging to this namespace is
1187 contained. The parent namespace points to this namespace either
1188 directly via CONTAINED, or indirectly via the chain built by
1190 struct gfc_namespace *parent;
1191 /* CONTAINED points to the first contained namespace. Sibling
1192 namespaces are chained via SIBLING. */
1193 struct gfc_namespace *contained, *sibling;
1195 gfc_common_head blank_common;
1196 gfc_access default_access, operator_access[GFC_INTRINSIC_OPS];
1198 gfc_st_label *st_labels;
1199 /* This list holds information about all the data initializers in
1201 struct gfc_data *data;
1203 gfc_charlen *cl_list;
1205 int save_all, seen_save, seen_implicit_none;
1207 /* Normally we don't need to refcount namespaces. However when we read
1208 a module containing a function with multiple entry points, this
1209 will appear as several functions with the same formal namespace. */
1212 /* A list of all alternate entry points to this procedure (or NULL). */
1213 gfc_entry_list *entries;
1215 /* Set to 1 if namespace is a BLOCK DATA program unit. */
1218 /* Set to 1 if namespace is an interface body with "IMPORT" used. */
1223 extern gfc_namespace *gfc_current_ns;
1225 /* Global symbols are symbols of global scope. Currently we only use
1226 this to detect collisions already when parsing.
1227 TODO: Extend to verify procedure calls. */
1229 typedef struct gfc_gsymbol
1231 BBT_HEADER(gfc_gsymbol);
1234 const char *sym_name;
1235 const char *mod_name;
1236 const char *binding_label;
1237 enum { GSYM_UNKNOWN=1, GSYM_PROGRAM, GSYM_FUNCTION, GSYM_SUBROUTINE,
1238 GSYM_MODULE, GSYM_COMMON, GSYM_BLOCK_DATA } type;
1245 extern gfc_gsymbol *gfc_gsym_root;
1247 /* Information on interfaces being built. */
1250 interface_type type;
1254 gfc_intrinsic_op op;
1258 extern gfc_interface_info current_interface;
1261 /* Array reference. */
1262 typedef struct gfc_array_ref
1265 int dimen; /* # of components in the reference */
1269 locus c_where[GFC_MAX_DIMENSIONS]; /* All expressions can be NULL */
1270 struct gfc_expr *start[GFC_MAX_DIMENSIONS], *end[GFC_MAX_DIMENSIONS],
1271 *stride[GFC_MAX_DIMENSIONS];
1274 { DIMEN_ELEMENT = 1, DIMEN_RANGE, DIMEN_VECTOR, DIMEN_UNKNOWN }
1275 dimen_type[GFC_MAX_DIMENSIONS];
1277 struct gfc_expr *offset;
1281 #define gfc_get_array_ref() XCNEW (gfc_array_ref)
1284 /* Component reference nodes. A variable is stored as an expression
1285 node that points to the base symbol. After that, a singly linked
1286 list of component reference nodes gives the variable's complete
1287 resolution. The array_ref component may be present and comes
1288 before the component component. */
1291 { REF_ARRAY, REF_COMPONENT, REF_SUBSTRING }
1294 typedef struct gfc_ref
1300 struct gfc_array_ref ar;
1304 gfc_component *component;
1311 struct gfc_expr *start, *end; /* Substring */
1312 gfc_charlen *length;
1319 struct gfc_ref *next;
1323 #define gfc_get_ref() XCNEW (gfc_ref)
1326 /* Structures representing intrinsic symbols and their arguments lists. */
1327 typedef struct gfc_intrinsic_arg
1329 char name[GFC_MAX_SYMBOL_LEN + 1];
1333 gfc_actual_arglist *actual;
1335 struct gfc_intrinsic_arg *next;
1341 /* Specifies the various kinds of check functions used to verify the
1342 argument lists of intrinsic functions. fX with X an integer refer
1343 to check functions of intrinsics with X arguments. f1m is used for
1344 the MAX and MIN intrinsics which can have an arbitrary number of
1345 arguments, f3ml is used for the MINLOC and MAXLOC intrinsics as
1346 these have special semantics. */
1351 try (*f1)(struct gfc_expr *);
1352 try (*f1m)(gfc_actual_arglist *);
1353 try (*f2)(struct gfc_expr *, struct gfc_expr *);
1354 try (*f3)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *);
1355 try (*f3ml)(gfc_actual_arglist *);
1356 try (*f3red)(gfc_actual_arglist *);
1357 try (*f4)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1359 try (*f5)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1360 struct gfc_expr *, struct gfc_expr *);
1364 /* Like gfc_check_f, these specify the type of the simplification
1365 function associated with an intrinsic. The fX are just like in
1366 gfc_check_f. cc is used for type conversion functions. */
1370 struct gfc_expr *(*f0)(void);
1371 struct gfc_expr *(*f1)(struct gfc_expr *);
1372 struct gfc_expr *(*f2)(struct gfc_expr *, struct gfc_expr *);
1373 struct gfc_expr *(*f3)(struct gfc_expr *, struct gfc_expr *,
1375 struct gfc_expr *(*f4)(struct gfc_expr *, struct gfc_expr *,
1376 struct gfc_expr *, struct gfc_expr *);
1377 struct gfc_expr *(*f5)(struct gfc_expr *, struct gfc_expr *,
1378 struct gfc_expr *, struct gfc_expr *,
1380 struct gfc_expr *(*cc)(struct gfc_expr *, bt, int);
1384 /* Again like gfc_check_f, these specify the type of the resolution
1385 function associated with an intrinsic. The fX are just like in
1386 gfc_check_f. f1m is used for MIN and MAX, s1 is used for abort(). */
1390 void (*f0)(struct gfc_expr *);
1391 void (*f1)(struct gfc_expr *, struct gfc_expr *);
1392 void (*f1m)(struct gfc_expr *, struct gfc_actual_arglist *);
1393 void (*f2)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *);
1394 void (*f3)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1396 void (*f4)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1397 struct gfc_expr *, struct gfc_expr *);
1398 void (*f5)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1399 struct gfc_expr *, struct gfc_expr *, struct gfc_expr *);
1400 void (*s1)(struct gfc_code *);
1405 typedef struct gfc_intrinsic_sym
1407 const char *name, *lib_name;
1408 gfc_intrinsic_arg *formal;
1410 unsigned elemental:1, inquiry:1, transformational:1, pure:1,
1411 generic:1, specific:1, actual_ok:1, noreturn:1, conversion:1;
1415 gfc_simplify_f simplify;
1417 gfc_resolve_f resolve;
1418 struct gfc_intrinsic_sym *specific_head, *next;
1425 /* Expression nodes. The expression node types deserve explanations,
1426 since the last couple can be easily misconstrued:
1428 EXPR_OP Operator node pointing to one or two other nodes
1429 EXPR_FUNCTION Function call, symbol points to function's name
1430 EXPR_CONSTANT A scalar constant: Logical, String, Real, Int or Complex
1431 EXPR_VARIABLE An Lvalue with a root symbol and possible reference list
1432 which expresses structure, array and substring refs.
1433 EXPR_NULL The NULL pointer value (which also has a basic type).
1434 EXPR_SUBSTRING A substring of a constant string
1435 EXPR_STRUCTURE A structure constructor
1436 EXPR_ARRAY An array constructor. */
1440 #define GFC_RND_MODE GMP_RNDN
1442 typedef struct gfc_expr
1446 gfc_typespec ts; /* These two refer to the overall expression */
1449 mpz_t *shape; /* Can be NULL if shape is unknown at compile time */
1451 /* Nonnull for functions and structure constructors */
1452 gfc_symtree *symtree;
1458 /* True if the expression is a call to a function that returns an array,
1459 and if we have decided not to allocate temporary data for that array. */
1460 unsigned int inline_noncopying_intrinsic : 1, is_boz : 1;
1462 /* Used to quickly find a given constructor by its offset. */
1463 splay_tree con_by_offset;
1465 /* If an expression comes from a Hollerith constant or compile-time
1466 evaluation of a transfer statement, it may have a prescribed target-
1467 memory representation, and these cannot always be backformed from
1494 gfc_intrinsic_op op;
1496 struct gfc_expr *op1, *op2;
1502 gfc_actual_arglist *actual;
1503 const char *name; /* Points to the ultimate name of the function */
1504 gfc_intrinsic_sym *isym;
1516 struct gfc_constructor *constructor;
1524 #define gfc_get_shape(rank) ((mpz_t *) gfc_getmem((rank)*sizeof(mpz_t)))
1526 /* Structures for information associated with different kinds of
1527 numbers. The first set of integer parameters define all there is
1528 to know about a particular kind. The rest of the elements are
1529 computed from the first elements. */
1533 /* Values really representable by the target. */
1534 mpz_t huge, pedantic_min_int, min_int;
1536 int kind, radix, digits, bit_size, range;
1538 /* True if the C type of the given name maps to this precision.
1539 Note that more than one bit can be set. */
1540 unsigned int c_char : 1;
1541 unsigned int c_short : 1;
1542 unsigned int c_int : 1;
1543 unsigned int c_long : 1;
1544 unsigned int c_long_long : 1;
1548 extern gfc_integer_info gfc_integer_kinds[];
1555 /* True if the C++ type bool, C99 type _Bool, maps to this precision. */
1556 unsigned int c_bool : 1;
1560 extern gfc_logical_info gfc_logical_kinds[];
1565 mpfr_t epsilon, huge, tiny, subnormal;
1566 int kind, radix, digits, min_exponent, max_exponent;
1567 int range, precision;
1569 /* The precision of the type as reported by GET_MODE_PRECISION. */
1572 /* True if the C type of the given name maps to this precision.
1573 Note that more than one bit can be set. */
1574 unsigned int c_float : 1;
1575 unsigned int c_double : 1;
1576 unsigned int c_long_double : 1;
1580 extern gfc_real_info gfc_real_kinds[];
1589 extern gfc_character_info gfc_character_kinds[];
1592 /* Equivalence structures. Equivalent lvalues are linked along the
1593 *eq pointer, equivalence sets are strung along the *next node. */
1594 typedef struct gfc_equiv
1596 struct gfc_equiv *next, *eq;
1603 #define gfc_get_equiv() XCNEW (gfc_equiv)
1605 /* Holds a single equivalence member after processing. */
1606 typedef struct gfc_equiv_info
1609 HOST_WIDE_INT offset;
1610 HOST_WIDE_INT length;
1611 struct gfc_equiv_info *next;
1614 /* Holds equivalence groups, after they have been processed. */
1615 typedef struct gfc_equiv_list
1617 gfc_equiv_info *equiv;
1618 struct gfc_equiv_list *next;
1621 /* gfc_case stores the selector list of a case statement. The *low
1622 and *high pointers can point to the same expression in the case of
1623 a single value. If *high is NULL, the selection is from *low
1624 upwards, if *low is NULL the selection is *high downwards.
1626 This structure has separate fields to allow single and double linked
1627 lists of CASEs at the same time. The singe linked list along the NEXT
1628 field is a list of cases for a single CASE label. The double linked
1629 list along the LEFT/RIGHT fields is used to detect overlap and to
1630 build a table of the cases for SELECT constructs with a CHARACTER
1633 typedef struct gfc_case
1635 /* Where we saw this case. */
1639 /* Case range values. If (low == high), it's a single value. If one of
1640 the labels is NULL, it's an unbounded case. If both are NULL, this
1641 represents the default case. */
1642 gfc_expr *low, *high;
1644 /* Next case label in the list of cases for a single CASE label. */
1645 struct gfc_case *next;
1647 /* Used for detecting overlap, and for code generation. */
1648 struct gfc_case *left, *right;
1650 /* True if this case label can never be matched. */
1655 #define gfc_get_case() XCNEW (gfc_case)
1660 gfc_expr *var, *start, *end, *step;
1664 #define gfc_get_iterator() XCNEW (gfc_iterator)
1667 /* Allocation structure for ALLOCATE, DEALLOCATE and NULLIFY statements. */
1669 typedef struct gfc_alloc
1672 struct gfc_alloc *next;
1676 #define gfc_get_alloc() XCNEW (gfc_alloc)
1681 gfc_expr *unit, *file, *status, *access, *form, *recl,
1682 *blank, *position, *action, *delim, *pad, *iostat, *iomsg, *convert,
1683 *decimal, *encoding, *round, *sign, *asynchronous, *id;
1691 gfc_expr *unit, *status, *iostat, *iomsg;
1699 gfc_expr *unit, *iostat, *iomsg;
1707 gfc_expr *unit, *file, *iostat, *exist, *opened, *number, *named,
1708 *name, *access, *sequential, *direct, *form, *formatted,
1709 *unformatted, *recl, *nextrec, *blank, *position, *action, *read,
1710 *write, *readwrite, *delim, *pad, *iolength, *iomsg, *convert, *strm_pos,
1711 *asynchronous, *decimal, *encoding, *pending, *round, *sign, *size, *id;
1721 gfc_expr *unit, *iostat, *iomsg, *id;
1722 gfc_st_label *err, *end, *eor;
1729 gfc_expr *io_unit, *format_expr, *rec, *advance, *iostat, *size, *iomsg,
1730 *id, *pos, *asynchronous, *blank, *decimal, *delim, *pad, *round,
1731 *sign, *extra_comma;
1733 gfc_symbol *namelist;
1734 /* A format_label of `format_asterisk' indicates the "*" format */
1735 gfc_st_label *format_label;
1736 gfc_st_label *err, *end, *eor;
1738 locus eor_where, end_where, err_where;
1743 typedef struct gfc_forall_iterator
1745 gfc_expr *var, *start, *end, *stride;
1746 struct gfc_forall_iterator *next;
1748 gfc_forall_iterator;
1751 /* Executable statements that fill gfc_code structures. */
1754 EXEC_NOP = 1, EXEC_ASSIGN, EXEC_LABEL_ASSIGN, EXEC_POINTER_ASSIGN,
1755 EXEC_GOTO, EXEC_CALL, EXEC_ASSIGN_CALL, EXEC_RETURN, EXEC_ENTRY,
1756 EXEC_PAUSE, EXEC_STOP, EXEC_CONTINUE, EXEC_INIT_ASSIGN,
1757 EXEC_IF, EXEC_ARITHMETIC_IF, EXEC_DO, EXEC_DO_WHILE, EXEC_SELECT,
1758 EXEC_FORALL, EXEC_WHERE, EXEC_CYCLE, EXEC_EXIT,
1759 EXEC_ALLOCATE, EXEC_DEALLOCATE,
1760 EXEC_OPEN, EXEC_CLOSE, EXEC_WAIT,
1761 EXEC_READ, EXEC_WRITE, EXEC_IOLENGTH, EXEC_TRANSFER, EXEC_DT_END,
1762 EXEC_BACKSPACE, EXEC_ENDFILE, EXEC_INQUIRE, EXEC_REWIND, EXEC_FLUSH,
1763 EXEC_OMP_CRITICAL, EXEC_OMP_DO, EXEC_OMP_FLUSH, EXEC_OMP_MASTER,
1764 EXEC_OMP_ORDERED, EXEC_OMP_PARALLEL, EXEC_OMP_PARALLEL_DO,
1765 EXEC_OMP_PARALLEL_SECTIONS, EXEC_OMP_PARALLEL_WORKSHARE,
1766 EXEC_OMP_SECTIONS, EXEC_OMP_SINGLE, EXEC_OMP_WORKSHARE,
1767 EXEC_OMP_ATOMIC, EXEC_OMP_BARRIER, EXEC_OMP_END_NOWAIT,
1768 EXEC_OMP_END_SINGLE, EXEC_OMP_TASK, EXEC_OMP_TASKWAIT
1772 typedef struct gfc_code
1776 struct gfc_code *block, *next;
1779 gfc_st_label *here, *label, *label2, *label3;
1780 gfc_symtree *symtree;
1781 gfc_expr *expr, *expr2;
1782 /* A name isn't sufficient to identify a subroutine, we need the actual
1783 symbol for the interface definition.
1784 const char *sub_name; */
1785 gfc_symbol *resolved_sym;
1789 gfc_actual_arglist *actual;
1790 gfc_case *case_list;
1791 gfc_iterator *iterator;
1792 gfc_alloc *alloc_list;
1795 gfc_filepos *filepos;
1796 gfc_inquire *inquire;
1799 gfc_forall_iterator *forall_iterator;
1800 struct gfc_code *whichloop;
1802 gfc_entry_list *entry;
1803 gfc_omp_clauses *omp_clauses;
1804 const char *omp_name;
1805 gfc_namelist *omp_namelist;
1808 ext; /* Points to additional structures required by statement */
1810 /* Backend_decl is used for cycle and break labels in do loops, and
1811 probably for other constructs as well, once we translate them. */
1817 /* Storage for DATA statements. */
1818 typedef struct gfc_data_variable
1822 struct gfc_data_variable *list, *next;
1827 typedef struct gfc_data_value
1831 struct gfc_data_value *next;
1836 typedef struct gfc_data
1838 gfc_data_variable *var;
1839 gfc_data_value *value;
1842 struct gfc_data *next;
1847 /* Structure for holding compile options */
1851 gfc_source_form source_form;
1852 /* Maximum line lengths in fixed- and free-form source, respectively.
1853 When fixed_line_length or free_line_length are 0, the whole line is used,
1854 regardless of length.
1856 If the user requests a fixed_line_length <7 then gfc_init_options()
1857 emits a fatal error. */
1858 int fixed_line_length;
1859 int free_line_length;
1860 /* Maximum number of continuation lines in fixed- and free-form source,
1862 int max_continue_fixed;
1863 int max_continue_free;
1864 int max_identifier_length;
1865 int dump_parse_tree;
1869 int warn_conversion;
1870 int warn_implicit_interface;
1871 int warn_line_truncation;
1872 int warn_surprising;
1875 int warn_character_truncation;
1876 int warn_array_temp;
1879 int flag_all_intrinsics;
1880 int flag_default_double;
1881 int flag_default_integer;
1882 int flag_default_real;
1884 int flag_underscoring;
1885 int flag_second_underscore;
1886 int flag_implicit_none;
1887 int flag_max_stack_var_size;
1888 int flag_range_check;
1889 int flag_pack_derived;
1890 int flag_repack_arrays;
1891 int flag_preprocessed;
1896 int flag_allow_leading_underscore;
1898 int flag_external_blas;
1899 int blas_matmul_limit;
1900 int flag_cray_pointer;
1904 int flag_module_private;
1906 int flag_init_local_zero;
1907 int flag_init_integer;
1908 int flag_init_integer_value;
1910 int flag_init_logical;
1911 int flag_init_character;
1912 char flag_init_character_value;
1918 int warn_nonstd_intrinsics;
1922 int max_subrecord_length;
1926 extern gfc_option_t gfc_option;
1928 /* Constructor nodes for array and structure constructors. */
1929 typedef struct gfc_constructor
1932 gfc_iterator *iterator;
1934 struct gfc_constructor *next;
1937 mpz_t offset; /* Record the offset of array element which appears in
1938 data statement like "data a(5)/4/". */
1939 gfc_component *component; /* Record the component being initialized. */
1942 mpz_t repeat; /* Record the repeat number of initial values in data
1943 statement like "data a/5*10/". */
1948 typedef struct iterator_stack
1950 gfc_symtree *variable;
1952 struct iterator_stack *prev;
1955 extern iterator_stack *iter_stack;
1958 /* Node in the linked list used for storing finalizer procedures. */
1960 typedef struct gfc_finalizer
1962 struct gfc_finalizer* next;
1963 gfc_symbol* procedure;
1964 locus where; /* Where the FINAL declaration occurred. */
1968 /************************ Function prototypes *************************/
1971 bool gfc_in_match_data (void);
1974 void gfc_scanner_done_1 (void);
1975 void gfc_scanner_init_1 (void);
1977 void gfc_add_include_path (const char *, bool);
1978 void gfc_add_intrinsic_modules_path (const char *);
1979 void gfc_release_include_path (void);
1980 FILE *gfc_open_included_file (const char *, bool, bool);
1981 FILE *gfc_open_intrinsic_module (const char *);
1983 int gfc_at_end (void);
1984 int gfc_at_eof (void);
1985 int gfc_at_bol (void);
1986 int gfc_at_eol (void);
1987 void gfc_advance_line (void);
1988 int gfc_check_include (void);
1989 int gfc_define_undef_line (void);
1991 int gfc_wide_is_printable (gfc_char_t);
1992 int gfc_wide_is_digit (gfc_char_t);
1993 int gfc_wide_fits_in_byte (gfc_char_t);
1994 gfc_char_t gfc_wide_tolower (gfc_char_t);
1995 gfc_char_t gfc_wide_toupper (gfc_char_t);
1996 size_t gfc_wide_strlen (const gfc_char_t *);
1997 int gfc_wide_strncasecmp (const gfc_char_t *, const char *, size_t);
1998 gfc_char_t *gfc_wide_memset (gfc_char_t *, gfc_char_t, size_t);
1999 char *gfc_widechar_to_char (const gfc_char_t *, int);
2000 gfc_char_t *gfc_char_to_widechar (const char *);
2002 #define gfc_get_wide_string(n) XCNEWVEC (gfc_char_t, n)
2004 void gfc_skip_comments (void);
2005 gfc_char_t gfc_next_char_literal (int);
2006 gfc_char_t gfc_next_char (void);
2007 char gfc_next_ascii_char (void);
2008 gfc_char_t gfc_peek_char (void);
2009 char gfc_peek_ascii_char (void);
2010 void gfc_error_recovery (void);
2011 void gfc_gobble_whitespace (void);
2012 try gfc_new_file (void);
2013 const char * gfc_read_orig_filename (const char *, const char **);
2015 extern gfc_source_form gfc_current_form;
2016 extern const char *gfc_source_file;
2017 extern locus gfc_current_locus;
2019 void gfc_start_source_files (void);
2020 void gfc_end_source_files (void);
2023 void *gfc_getmem (size_t) ATTRIBUTE_MALLOC;
2024 void gfc_free (void *);
2025 int gfc_terminal_width (void);
2026 void gfc_clear_ts (gfc_typespec *);
2027 FILE *gfc_open_file (const char *);
2028 const char *gfc_basic_typename (bt);
2029 const char *gfc_typename (gfc_typespec *);
2030 const char *gfc_op2string (gfc_intrinsic_op);
2031 const char *gfc_code2string (const mstring *, int);
2032 int gfc_string2code (const mstring *, const char *);
2033 const char *gfc_intent_string (sym_intent);
2035 void gfc_init_1 (void);
2036 void gfc_init_2 (void);
2037 void gfc_done_1 (void);
2038 void gfc_done_2 (void);
2040 int get_c_kind (const char *, CInteropKind_t *);
2043 unsigned int gfc_init_options (unsigned int, const char **);
2044 int gfc_handle_option (size_t, const char *, int);
2045 bool gfc_post_options (const char **);
2048 const char * gfc_get_string (const char *, ...) ATTRIBUTE_PRINTF_1;
2049 bool gfc_find_sym_in_expr (gfc_symbol *, gfc_expr *);
2053 typedef struct gfc_error_buf
2056 size_t allocated, index;
2060 void gfc_error_init_1 (void);
2061 void gfc_buffer_error (int);
2063 const char *gfc_print_wide_char (gfc_char_t);
2065 void gfc_warning (const char *, ...) ATTRIBUTE_GCC_GFC(1,2);
2066 void gfc_warning_now (const char *, ...) ATTRIBUTE_GCC_GFC(1,2);
2067 void gfc_clear_warning (void);
2068 void gfc_warning_check (void);
2070 void gfc_error (const char *, ...) ATTRIBUTE_GCC_GFC(1,2);
2071 void gfc_error_now (const char *, ...) ATTRIBUTE_GCC_GFC(1,2);
2072 void gfc_fatal_error (const char *, ...) ATTRIBUTE_NORETURN ATTRIBUTE_GCC_GFC(1,2);
2073 void gfc_internal_error (const char *, ...) ATTRIBUTE_NORETURN ATTRIBUTE_GCC_GFC(1,2);
2074 void gfc_clear_error (void);
2075 int gfc_error_check (void);
2076 int gfc_error_flag_test (void);
2078 notification gfc_notification_std (int);
2079 try gfc_notify_std (int, const char *, ...) ATTRIBUTE_GCC_GFC(2,3);
2081 /* A general purpose syntax error. */
2082 #define gfc_syntax_error(ST) \
2083 gfc_error ("Syntax error in %s statement at %C", gfc_ascii_statement (ST));
2085 void gfc_push_error (gfc_error_buf *);
2086 void gfc_pop_error (gfc_error_buf *);
2087 void gfc_free_error (gfc_error_buf *);
2089 void gfc_get_errors (int *, int *);
2092 void gfc_arith_init_1 (void);
2093 void gfc_arith_done_1 (void);
2094 gfc_expr *gfc_enum_initializer (gfc_expr *, locus);
2095 arith gfc_check_integer_range (mpz_t p, int kind);
2096 bool gfc_check_character_range (gfc_char_t, int);
2099 try gfc_validate_c_kind (gfc_typespec *);
2100 try gfc_check_any_c_kind (gfc_typespec *);
2101 int gfc_validate_kind (bt, int, bool);
2102 extern int gfc_index_integer_kind;
2103 extern int gfc_default_integer_kind;
2104 extern int gfc_max_integer_kind;
2105 extern int gfc_default_real_kind;
2106 extern int gfc_default_double_kind;
2107 extern int gfc_default_character_kind;
2108 extern int gfc_default_logical_kind;
2109 extern int gfc_default_complex_kind;
2110 extern int gfc_c_int_kind;
2111 extern int gfc_intio_kind;
2112 extern int gfc_charlen_int_kind;
2113 extern int gfc_numeric_storage_size;
2114 extern int gfc_character_storage_size;
2117 void gfc_clear_new_implicit (void);
2118 try gfc_add_new_implicit_range (int, int);
2119 try gfc_merge_new_implicit (gfc_typespec *);
2120 void gfc_set_implicit_none (void);
2121 void gfc_check_function_type (gfc_namespace *);
2122 bool gfc_is_intrinsic_typename (const char *);
2124 gfc_typespec *gfc_get_default_type (gfc_symbol *, gfc_namespace *);
2125 try gfc_set_default_type (gfc_symbol *, int, gfc_namespace *);
2127 void gfc_set_component_attr (gfc_component *, symbol_attribute *);
2128 void gfc_get_component_attr (symbol_attribute *, gfc_component *);
2130 void gfc_set_sym_referenced (gfc_symbol *);
2132 try gfc_add_attribute (symbol_attribute *, locus *);
2133 try gfc_add_allocatable (symbol_attribute *, locus *);
2134 try gfc_add_dimension (symbol_attribute *, const char *, locus *);
2135 try gfc_add_external (symbol_attribute *, locus *);
2136 try gfc_add_intrinsic (symbol_attribute *, locus *);
2137 try gfc_add_optional (symbol_attribute *, locus *);
2138 try gfc_add_pointer (symbol_attribute *, locus *);
2139 try gfc_add_cray_pointer (symbol_attribute *, locus *);
2140 try gfc_add_cray_pointee (symbol_attribute *, locus *);
2141 try gfc_mod_pointee_as (gfc_array_spec *);
2142 try gfc_add_protected (symbol_attribute *, const char *, locus *);
2143 try gfc_add_result (symbol_attribute *, const char *, locus *);
2144 try gfc_add_save (symbol_attribute *, const char *, locus *);
2145 try gfc_add_threadprivate (symbol_attribute *, const char *, locus *);
2146 try gfc_add_saved_common (symbol_attribute *, locus *);
2147 try gfc_add_target (symbol_attribute *, locus *);
2148 try gfc_add_dummy (symbol_attribute *, const char *, locus *);
2149 try gfc_add_generic (symbol_attribute *, const char *, locus *);
2150 try gfc_add_common (symbol_attribute *, locus *);
2151 try gfc_add_in_common (symbol_attribute *, const char *, locus *);
2152 try gfc_add_in_equivalence (symbol_attribute *, const char *, locus *);
2153 try gfc_add_data (symbol_attribute *, const char *, locus *);
2154 try gfc_add_in_namelist (symbol_attribute *, const char *, locus *);
2155 try gfc_add_sequence (symbol_attribute *, const char *, locus *);
2156 try gfc_add_elemental (symbol_attribute *, locus *);
2157 try gfc_add_pure (symbol_attribute *, locus *);
2158 try gfc_add_recursive (symbol_attribute *, locus *);
2159 try gfc_add_function (symbol_attribute *, const char *, locus *);
2160 try gfc_add_subroutine (symbol_attribute *, const char *, locus *);
2161 try gfc_add_volatile (symbol_attribute *, const char *, locus *);
2162 try gfc_add_proc (symbol_attribute *attr, const char *name, locus *where);
2164 try gfc_add_access (symbol_attribute *, gfc_access, const char *, locus *);
2165 try gfc_add_is_bind_c(symbol_attribute *, const char *, locus *, int);
2166 try gfc_add_value (symbol_attribute *, const char *, locus *);
2167 try gfc_add_flavor (symbol_attribute *, sym_flavor, const char *, locus *);
2168 try gfc_add_entry (symbol_attribute *, const char *, locus *);
2169 try gfc_add_procedure (symbol_attribute *, procedure_type,
2170 const char *, locus *);
2171 try gfc_add_intent (symbol_attribute *, sym_intent, locus *);
2172 try gfc_add_explicit_interface (gfc_symbol *, ifsrc,
2173 gfc_formal_arglist *, locus *);
2174 try gfc_add_type (gfc_symbol *, gfc_typespec *, locus *);
2176 void gfc_clear_attr (symbol_attribute *);
2177 try gfc_missing_attr (symbol_attribute *, locus *);
2178 try gfc_copy_attr (symbol_attribute *, symbol_attribute *, locus *);
2180 try gfc_add_component (gfc_symbol *, const char *, gfc_component **);
2181 gfc_symbol *gfc_use_derived (gfc_symbol *);
2182 gfc_symtree *gfc_use_derived_tree (gfc_symtree *);
2183 gfc_component *gfc_find_component (gfc_symbol *, const char *);
2185 gfc_st_label *gfc_get_st_label (int);
2186 void gfc_free_st_label (gfc_st_label *);
2187 void gfc_define_st_label (gfc_st_label *, gfc_sl_type, locus *);
2188 try gfc_reference_st_label (gfc_st_label *, gfc_sl_type);
2190 gfc_expr * gfc_lval_expr_from_sym (gfc_symbol *);
2192 gfc_namespace *gfc_get_namespace (gfc_namespace *, int);
2193 gfc_symtree *gfc_new_symtree (gfc_symtree **, const char *);
2194 gfc_symtree *gfc_find_symtree (gfc_symtree *, const char *);
2195 void gfc_delete_symtree (gfc_symtree **, const char *);
2196 gfc_symtree *gfc_get_unique_symtree (gfc_namespace *);
2197 gfc_user_op *gfc_get_uop (const char *);
2198 gfc_user_op *gfc_find_uop (const char *, gfc_namespace *);
2199 void gfc_free_symbol (gfc_symbol *);
2200 gfc_symbol *gfc_new_symbol (const char *, gfc_namespace *);
2201 int gfc_find_symbol (const char *, gfc_namespace *, int, gfc_symbol **);
2202 int gfc_find_sym_tree (const char *, gfc_namespace *, int, gfc_symtree **);
2203 int gfc_get_symbol (const char *, gfc_namespace *, gfc_symbol **);
2204 try verify_c_interop (gfc_typespec *, const char *name, locus *where);
2205 try verify_c_interop_param (gfc_symbol *);
2206 try verify_bind_c_sym (gfc_symbol *, gfc_typespec *, int, gfc_common_head *);
2207 try verify_bind_c_derived_type (gfc_symbol *);
2208 try verify_com_block_vars_c_interop (gfc_common_head *);
2209 void generate_isocbinding_symbol (const char *, iso_c_binding_symbol, const char *);
2210 gfc_symbol *get_iso_c_sym (gfc_symbol *, char *, char *, int);
2211 int gfc_get_sym_tree (const char *, gfc_namespace *, gfc_symtree **);
2212 int gfc_get_ha_symbol (const char *, gfc_symbol **);
2213 int gfc_get_ha_sym_tree (const char *, gfc_symtree **);
2215 int gfc_symbols_could_alias (gfc_symbol *, gfc_symbol *);
2217 void gfc_undo_symbols (void);
2218 void gfc_commit_symbols (void);
2219 void gfc_commit_symbol (gfc_symbol *);
2220 void gfc_free_namespace (gfc_namespace *);
2222 void gfc_symbol_init_2 (void);
2223 void gfc_symbol_done_2 (void);
2225 void gfc_traverse_symtree (gfc_symtree *, void (*)(gfc_symtree *));
2226 void gfc_traverse_ns (gfc_namespace *, void (*)(gfc_symbol *));
2227 void gfc_traverse_user_op (gfc_namespace *, void (*)(gfc_user_op *));
2228 void gfc_save_all (gfc_namespace *);
2230 void gfc_symbol_state (void);
2232 gfc_gsymbol *gfc_get_gsymbol (const char *);
2233 gfc_gsymbol *gfc_find_gsymbol (gfc_gsymbol *, const char *);
2235 void copy_formal_args (gfc_symbol *dest, gfc_symbol *src);
2237 void gfc_free_finalizer (gfc_finalizer *el); /* Needed in resolve.c, too */
2240 extern int gfc_init_expr;
2242 /* Given a symbol that we have decided is intrinsic, mark it as such
2243 by placing it into a special module that is otherwise impossible to
2246 #define gfc_intrinsic_symbol(SYM) SYM->module = gfc_get_string ("(intrinsic)")
2248 void gfc_intrinsic_init_1 (void);
2249 void gfc_intrinsic_done_1 (void);
2251 char gfc_type_letter (bt);
2252 gfc_symbol * gfc_get_intrinsic_sub_symbol (const char *);
2253 try gfc_convert_type (gfc_expr *, gfc_typespec *, int);
2254 try gfc_convert_type_warn (gfc_expr *, gfc_typespec *, int, int);
2255 try gfc_convert_chartype (gfc_expr *, gfc_typespec *);
2256 int gfc_generic_intrinsic (const char *);
2257 int gfc_specific_intrinsic (const char *);
2258 int gfc_intrinsic_name (const char *, int);
2259 int gfc_intrinsic_actual_ok (const char *, const bool);
2260 gfc_intrinsic_sym *gfc_find_function (const char *);
2261 gfc_intrinsic_sym *gfc_find_subroutine (const char *);
2263 match gfc_intrinsic_func_interface (gfc_expr *, int);
2264 match gfc_intrinsic_sub_interface (gfc_code *, int);
2266 /* match.c -- FIXME */
2267 void gfc_free_iterator (gfc_iterator *, int);
2268 void gfc_free_forall_iterator (gfc_forall_iterator *);
2269 void gfc_free_alloc_list (gfc_alloc *);
2270 void gfc_free_namelist (gfc_namelist *);
2271 void gfc_free_equiv (gfc_equiv *);
2272 void gfc_free_data (gfc_data *);
2273 void gfc_free_case_list (gfc_case *);
2275 /* matchexp.c -- FIXME too? */
2276 gfc_expr *gfc_get_parentheses (gfc_expr *);
2279 void gfc_free_omp_clauses (gfc_omp_clauses *);
2280 void gfc_resolve_omp_directive (gfc_code *, gfc_namespace *);
2281 void gfc_resolve_do_iterator (gfc_code *, gfc_symbol *);
2282 void gfc_resolve_omp_parallel_blocks (gfc_code *, gfc_namespace *);
2283 void gfc_resolve_omp_do_blocks (gfc_code *, gfc_namespace *);
2286 void gfc_free_actual_arglist (gfc_actual_arglist *);
2287 gfc_actual_arglist *gfc_copy_actual_arglist (gfc_actual_arglist *);
2288 const char *gfc_extract_int (gfc_expr *, int *);
2289 gfc_expr *gfc_expr_to_initialize (gfc_expr *);
2290 bool is_subref_array (gfc_expr *);
2292 gfc_expr *gfc_build_conversion (gfc_expr *);
2293 void gfc_free_ref_list (gfc_ref *);
2294 void gfc_type_convert_binary (gfc_expr *);
2295 int gfc_is_constant_expr (gfc_expr *);
2296 try gfc_simplify_expr (gfc_expr *, int);
2297 int gfc_has_vector_index (gfc_expr *);
2299 gfc_expr *gfc_get_expr (void);
2300 void gfc_free_expr (gfc_expr *);
2301 void gfc_replace_expr (gfc_expr *, gfc_expr *);
2302 gfc_expr *gfc_int_expr (int);
2303 gfc_expr *gfc_logical_expr (int, locus *);
2304 mpz_t *gfc_copy_shape (mpz_t *, int);
2305 mpz_t *gfc_copy_shape_excluding (mpz_t *, int, gfc_expr *);
2306 gfc_expr *gfc_copy_expr (gfc_expr *);
2308 try gfc_specification_expr (gfc_expr *);
2310 int gfc_numeric_ts (gfc_typespec *);
2311 int gfc_kind_max (gfc_expr *, gfc_expr *);
2313 try gfc_check_conformance (const char *, gfc_expr *, gfc_expr *);
2314 try gfc_check_assign (gfc_expr *, gfc_expr *, int);
2315 try gfc_check_pointer_assign (gfc_expr *, gfc_expr *);
2316 try gfc_check_assign_symbol (gfc_symbol *, gfc_expr *);
2318 gfc_expr *gfc_default_initializer (gfc_typespec *);
2319 gfc_expr *gfc_get_variable_expr (gfc_symtree *);
2321 bool gfc_traverse_expr (gfc_expr *, gfc_symbol *,
2322 bool (*)(gfc_expr *, gfc_symbol *, int*),
2324 void gfc_expr_set_symbols_referenced (gfc_expr *);
2327 extern gfc_code new_st;
2329 void gfc_clear_new_st (void);
2330 gfc_code *gfc_get_code (void);
2331 gfc_code *gfc_append_code (gfc_code *, gfc_code *);
2332 void gfc_free_statement (gfc_code *);
2333 void gfc_free_statements (gfc_code *);
2336 try gfc_resolve_expr (gfc_expr *);
2337 void gfc_resolve (gfc_namespace *);
2338 void gfc_resolve_blocks (gfc_code *, gfc_namespace *);
2339 int gfc_impure_variable (gfc_symbol *);
2340 int gfc_pure (gfc_symbol *);
2341 int gfc_elemental (gfc_symbol *);
2342 try gfc_resolve_iterator (gfc_iterator *, bool);
2343 try find_forall_index (gfc_expr *, gfc_symbol *, int);
2344 try gfc_resolve_index (gfc_expr *, int);
2345 try gfc_resolve_dim_arg (gfc_expr *);
2346 int gfc_is_formal_arg (void);
2347 void gfc_resolve_substring_charlen (gfc_expr *);
2348 match gfc_iso_c_sub_interface(gfc_code *, gfc_symbol *);
2352 void gfc_free_array_spec (gfc_array_spec *);
2353 gfc_array_ref *gfc_copy_array_ref (gfc_array_ref *);
2355 try gfc_set_array_spec (gfc_symbol *, gfc_array_spec *, locus *);
2356 gfc_array_spec *gfc_copy_array_spec (gfc_array_spec *);
2357 try gfc_resolve_array_spec (gfc_array_spec *, int);
2359 int gfc_compare_array_spec (gfc_array_spec *, gfc_array_spec *);
2361 gfc_expr *gfc_start_constructor (bt, int, locus *);
2362 void gfc_append_constructor (gfc_expr *, gfc_expr *);
2363 void gfc_free_constructor (gfc_constructor *);
2364 void gfc_simplify_iterator_var (gfc_expr *);
2365 try gfc_expand_constructor (gfc_expr *);
2366 int gfc_constant_ac (gfc_expr *);
2367 int gfc_expanded_ac (gfc_expr *);
2368 try gfc_resolve_character_array_constructor (gfc_expr *);
2369 try gfc_resolve_array_constructor (gfc_expr *);
2370 try gfc_check_constructor_type (gfc_expr *);
2371 try gfc_check_iter_variable (gfc_expr *);
2372 try gfc_check_constructor (gfc_expr *, try (*)(gfc_expr *));
2373 gfc_constructor *gfc_copy_constructor (gfc_constructor *);
2374 gfc_expr *gfc_get_array_element (gfc_expr *, int);
2375 try gfc_array_size (gfc_expr *, mpz_t *);
2376 try gfc_array_dimen_size (gfc_expr *, int, mpz_t *);
2377 try gfc_array_ref_shape (gfc_array_ref *, mpz_t *);
2378 gfc_array_ref *gfc_find_array_ref (gfc_expr *);
2379 void gfc_insert_constructor (gfc_expr *, gfc_constructor *);
2380 gfc_constructor *gfc_get_constructor (void);
2381 tree gfc_conv_array_initializer (tree type, gfc_expr *);
2382 try spec_size (gfc_array_spec *, mpz_t *);
2383 try spec_dimen_size (gfc_array_spec *, int, mpz_t *);
2384 int gfc_is_compile_time_shape (gfc_array_spec *);
2386 /* interface.c -- FIXME: some of these should be in symbol.c */
2387 void gfc_free_interface (gfc_interface *);
2388 int gfc_compare_derived_types (gfc_symbol *, gfc_symbol *);
2389 int gfc_compare_types (gfc_typespec *, gfc_typespec *);
2390 void gfc_check_interfaces (gfc_namespace *);
2391 void gfc_procedure_use (gfc_symbol *, gfc_actual_arglist **, locus *);
2392 gfc_symbol *gfc_search_interface (gfc_interface *, int,
2393 gfc_actual_arglist **);
2394 try gfc_extend_expr (gfc_expr *);
2395 void gfc_free_formal_arglist (gfc_formal_arglist *);
2396 try gfc_extend_assign (gfc_code *, gfc_namespace *);
2397 try gfc_add_interface (gfc_symbol *);
2398 gfc_interface *gfc_current_interface_head (void);
2399 void gfc_set_current_interface_head (gfc_interface *);
2402 extern gfc_st_label format_asterisk;
2404 void gfc_free_open (gfc_open *);
2405 try gfc_resolve_open (gfc_open *);
2406 void gfc_free_close (gfc_close *);
2407 try gfc_resolve_close (gfc_close *);
2408 void gfc_free_filepos (gfc_filepos *);
2409 try gfc_resolve_filepos (gfc_filepos *);
2410 void gfc_free_inquire (gfc_inquire *);
2411 try gfc_resolve_inquire (gfc_inquire *);
2412 void gfc_free_dt (gfc_dt *);
2413 try gfc_resolve_dt (gfc_dt *);
2414 void gfc_free_wait (gfc_wait *);
2415 try gfc_resolve_wait (gfc_wait *);
2418 void gfc_module_init_2 (void);
2419 void gfc_module_done_2 (void);
2420 void gfc_dump_module (const char *, int);
2421 bool gfc_check_access (gfc_access, gfc_access);
2424 symbol_attribute gfc_variable_attr (gfc_expr *, gfc_typespec *);
2425 symbol_attribute gfc_expr_attr (gfc_expr *);
2426 match gfc_match_rvalue (gfc_expr **);
2427 int gfc_check_digit (char, int);
2430 void gfc_generate_code (gfc_namespace *);
2431 void gfc_generate_module_code (gfc_namespace *);
2434 typedef int (*compare_fn) (void *, void *);
2435 void gfc_insert_bbt (void *, void *, compare_fn);
2436 void gfc_delete_bbt (void *, void *, compare_fn);
2438 /* dump-parse-tree.c */
2439 void gfc_dump_parse_tree (gfc_namespace *, FILE *);
2442 try gfc_parse_file (void);
2443 void gfc_global_used (gfc_gsymbol *, locus *);
2446 int gfc_dep_compare_expr (gfc_expr *, gfc_expr *);
2448 #endif /* GCC_GFORTRAN_H */