1 /* gfortran header file
2 Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005 Free Software Foundation,
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 2, 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 COPYING. If not, write to the Free
20 Software Foundation, 59 Temple Place - Suite 330, Boston, MA
23 #ifndef GCC_GFORTRAN_H
24 #define GCC_GFORTRAN_H
26 /* It's probably insane to have this large of a header file, but it
27 seemed like everything had to be recompiled anyway when a change
28 was made to a header file, and there were ordering issues with
29 multiple header files. Besides, Microsoft's winnt.h was 250k last
30 time I looked, so by comparison this is perfectly reasonable. */
33 #include "coretypes.h"
36 /* The following ifdefs are recommended by the autoconf documentation
37 for any code using alloca. */
39 /* AIX requires this to be the first thing in the file. */
41 #else /* not __GNUC__ */
44 #else /* do not HAVE_ALLOCA_H */
48 #ifndef alloca /* predefined by HP cc +Olibcalls */
50 #endif /* not predefined */
52 #endif /* do not HAVE_ALLOCA_H */
53 #endif /* not __GNUC__ */
55 /* Major control parameters. */
57 #define GFC_MAX_SYMBOL_LEN 63
58 #define GFC_MAX_LINE 132 /* Characters beyond this are not seen. */
59 #define GFC_MAX_DIMENSIONS 7 /* Maximum dimensions in an array. */
60 #define GFC_LETTERS 26 /* Number of letters in the alphabet. */
61 #define MAX_ERROR_MESSAGE 1000 /* Maximum length of an error message. */
63 #define free(x) Use_gfc_free_instead_of_free()
64 #define gfc_is_whitespace(c) ((c==' ') || (c=='\t'))
67 #define NULL ((void *) 0)
71 #define stringize(x) expand_macro(x)
72 #define expand_macro(x) # x
74 /* For a the runtime library, a standard prefix is a requirement to
75 avoid cluttering the namespace with things nobody asked for. It's
76 ugly to look at and a pain to type when you add the prefix by hand,
77 so we hide it behind a macro. */
78 #define PREFIX(x) "_gfortran_" x
81 /* Macro to initialize an mstring structure. */
82 #define minit(s, t) { s, NULL, t }
84 /* Structure for storing strings to be matched by gfc_match_string. */
94 /* Flags to specify which standard/extension contains a feature. */
95 #define GFC_STD_GNU (1<<5) /* GNU Fortran extension. */
96 #define GFC_STD_F2003 (1<<4) /* New in F2003. */
97 /* Note that no features were obsoleted nor deleted in F2003. */
98 #define GFC_STD_F95 (1<<3) /* New in F95. */
99 #define GFC_STD_F95_DEL (1<<2) /* Deleted in F95. */
100 #define GFC_STD_F95_OBS (1<<1) /* Obsoleted in F95. */
101 #define GFC_STD_F77 (1<<0) /* Up to and including F77. */
103 /*************************** Enums *****************************/
105 /* The author remains confused to this day about the convention of
106 returning '0' for 'SUCCESS'... or was it the other way around? The
107 following enum makes things much more readable. We also start
108 values off at one instead of zero. */
111 { SUCCESS = 1, FAILURE }
114 /* Matchers return one of these three values. The difference between
115 MATCH_NO and MATCH_ERROR is that MATCH_ERROR means that a match was
116 successful, but that something non-syntactic is wrong and an error
117 has already been issued. */
120 { MATCH_NO = 1, MATCH_YES, MATCH_ERROR }
124 { FORM_FREE, FORM_FIXED, FORM_UNKNOWN }
128 { BT_UNKNOWN = 1, BT_INTEGER, BT_REAL, BT_COMPLEX,
129 BT_LOGICAL, BT_CHARACTER, BT_DERIVED, BT_PROCEDURE
133 /* Expression node types. */
135 { EXPR_OP = 1, EXPR_FUNCTION, EXPR_CONSTANT, EXPR_VARIABLE,
136 EXPR_SUBSTRING, EXPR_STRUCTURE, EXPR_ARRAY, EXPR_NULL
142 { AS_EXPLICIT = 1, AS_ASSUMED_SHAPE, AS_DEFERRED,
143 AS_ASSUMED_SIZE, AS_UNKNOWN
148 { AR_FULL = 1, AR_ELEMENT, AR_SECTION, AR_UNKNOWN }
151 /* Statement label types. */
153 { ST_LABEL_UNKNOWN = 1, ST_LABEL_TARGET,
154 ST_LABEL_BAD_TARGET, ST_LABEL_FORMAT
158 /* Intrinsic operators. */
160 { GFC_INTRINSIC_BEGIN = 0,
161 INTRINSIC_NONE = -1, INTRINSIC_UPLUS = GFC_INTRINSIC_BEGIN,
162 INTRINSIC_UMINUS, INTRINSIC_PLUS, INTRINSIC_MINUS, INTRINSIC_TIMES,
163 INTRINSIC_DIVIDE, INTRINSIC_POWER, INTRINSIC_CONCAT,
164 INTRINSIC_AND, INTRINSIC_OR, INTRINSIC_EQV, INTRINSIC_NEQV,
165 INTRINSIC_EQ, INTRINSIC_NE, INTRINSIC_GT, INTRINSIC_GE,
166 INTRINSIC_LT, INTRINSIC_LE, INTRINSIC_NOT, INTRINSIC_USER,
168 GFC_INTRINSIC_END /* Sentinel */
173 /* Strings for all intrinsic operators. */
174 extern mstring intrinsic_operators[];
177 /* This macro is the number of intrinsic operators that exist.
178 Assumptions are made about the numbering of the interface_op enums. */
179 #define GFC_INTRINSIC_OPS GFC_INTRINSIC_END
181 /* Arithmetic results. */
183 { ARITH_OK = 1, ARITH_OVERFLOW, ARITH_UNDERFLOW, ARITH_NAN,
184 ARITH_DIV0, ARITH_INCOMMENSURATE, ARITH_ASYMMETRIC
191 ST_ARITHMETIC_IF, ST_ALLOCATE, ST_ATTR_DECL, ST_BACKSPACE, ST_BLOCK_DATA,
192 ST_CALL, ST_CASE, ST_CLOSE, ST_COMMON, ST_CONTINUE, ST_CONTAINS, ST_CYCLE,
193 ST_DATA, ST_DATA_DECL, ST_DEALLOCATE, ST_DO, ST_ELSE, ST_ELSEIF,
194 ST_ELSEWHERE, ST_END_BLOCK_DATA, ST_ENDDO, ST_IMPLIED_ENDDO,
195 ST_END_FILE, ST_END_FORALL, ST_END_FUNCTION, ST_ENDIF, ST_END_INTERFACE,
196 ST_END_MODULE, ST_END_PROGRAM, ST_END_SELECT, ST_END_SUBROUTINE,
197 ST_END_WHERE, ST_END_TYPE, ST_ENTRY, ST_EQUIVALENCE, ST_EXIT, ST_FORALL,
198 ST_FORALL_BLOCK, ST_FORMAT, ST_FUNCTION, ST_GOTO, ST_IF_BLOCK, ST_IMPLICIT,
199 ST_IMPLICIT_NONE, ST_INQUIRE, ST_INTERFACE, ST_PARAMETER, ST_MODULE,
200 ST_MODULE_PROC, ST_NAMELIST, ST_NULLIFY, ST_OPEN, ST_PAUSE, ST_PRIVATE,
201 ST_PROGRAM, ST_PUBLIC, ST_READ, ST_RETURN, ST_REWIND, ST_STOP,
203 ST_TYPE, ST_USE, ST_WHERE_BLOCK, ST_WHERE, ST_WRITE, ST_ASSIGNMENT,
204 ST_POINTER_ASSIGNMENT, ST_SELECT_CASE, ST_SEQUENCE, ST_SIMPLE_IF,
205 ST_STATEMENT_FUNCTION, ST_DERIVED_DECL, ST_LABEL_ASSIGNMENT, ST_NONE
210 /* Types of interfaces that we can have. Assignment interfaces are
211 considered to be intrinsic operators. */
214 INTERFACE_NAMELESS = 1, INTERFACE_GENERIC,
215 INTERFACE_INTRINSIC_OP, INTERFACE_USER_OP
219 /* Symbol flavors: these are all mutually exclusive.
220 10 elements = 4 bits. */
221 typedef enum sym_flavor
223 FL_UNKNOWN = 0, FL_PROGRAM, FL_BLOCK_DATA, FL_MODULE, FL_VARIABLE,
224 FL_PARAMETER, FL_LABEL, FL_PROCEDURE, FL_DERIVED, FL_NAMELIST
228 /* Procedure types. 7 elements = 3 bits. */
229 typedef enum procedure_type
230 { PROC_UNKNOWN, PROC_MODULE, PROC_INTERNAL, PROC_DUMMY,
231 PROC_INTRINSIC, PROC_ST_FUNCTION, PROC_EXTERNAL
236 typedef enum sym_intent
237 { INTENT_UNKNOWN = 0, INTENT_IN, INTENT_OUT, INTENT_INOUT
242 typedef enum gfc_access
243 { ACCESS_UNKNOWN = 0, ACCESS_PUBLIC, ACCESS_PRIVATE
247 /* Flags to keep track of where an interface came from.
248 4 elements = 2 bits. */
250 { IFSRC_UNKNOWN = 0, IFSRC_DECL, IFSRC_IFBODY, IFSRC_USAGE
254 /* Strings for all symbol attributes. We use these for dumping the
255 parse tree, in error messages, and also when reading and writing
256 modules. In symbol.c. */
257 extern const mstring flavors[];
258 extern const mstring procedures[];
259 extern const mstring intents[];
260 extern const mstring access_types[];
261 extern const mstring ifsrc_types[];
263 /* Enumeration of all the generic intrinsic functions. Used by the
264 backend for identification of a function. */
266 enum gfc_generic_isym_id
268 /* GFC_ISYM_NONE is used for intrinsics which will never be seen by
269 the backend (eg. KIND). */
297 GFC_ISYM_COMMAND_ARGUMENT_COUNT,
305 GFC_ISYM_DOT_PRODUCT,
374 GFC_ISYM_SET_EXPONENT,
403 typedef enum gfc_generic_isym_id gfc_generic_isym_id;
405 /************************* Structures *****************************/
407 /* Symbol attribute structure. */
410 /* Variable attributes. */
411 unsigned allocatable:1, dimension:1, external:1, intrinsic:1,
412 optional:1, pointer:1, save:1, target:1,
413 dummy:1, result:1, assign:1;
415 unsigned data:1, /* Symbol is named in a DATA statement. */
416 use_assoc:1; /* Symbol has been use-associated. */
418 unsigned in_namelist:1, in_common:1;
419 unsigned function:1, subroutine:1, generic:1;
420 unsigned implicit_type:1; /* Type defined via implicit rules. */
421 unsigned untyped:1; /* No implicit type could be found. */
423 /* Function/subroutine attributes */
424 unsigned sequence:1, elemental:1, pure:1, recursive:1;
425 unsigned unmaskable:1, masked:1, contained:1;
427 /* Set if this procedure is an alternate entry point. These procedures
428 don't have any code associated, and the backend will turn them into
429 thunks to the master function. */
431 /* Set if this is the master function for a procedure with multiple
433 unsigned entry_master:1;
434 /* Set if this is the master function for a function with multiple
435 entry points where characteristics of the entry points differ. */
436 unsigned mixed_entry_master:1;
438 /* Set if a function must always be referenced by an explicit interface. */
439 unsigned always_explicit:1;
441 /* Set if the symbol has been referenced in an expression. No further
442 modification of type or type parameters is permitted. */
443 unsigned referenced:1;
445 /* Mutually exclusive multibit attributes. */
446 ENUM_BITFIELD (gfc_access) access:2;
447 ENUM_BITFIELD (sym_intent) intent:2;
448 ENUM_BITFIELD (sym_flavor) flavor:4;
449 ENUM_BITFIELD (ifsrc) if_source:2;
451 ENUM_BITFIELD (procedure_type) proc:3;
457 /* The following three structures are used to identify a location in
460 gfc_file is used to maintain a tree of the source files and how
461 they include each other
463 gfc_linebuf holds a single line of source code and information
464 which file it resides in
466 locus point to the sourceline and the character in the source
470 typedef struct gfc_file
472 struct gfc_file *included_by, *next, *up;
473 int inclusion_line, line;
477 typedef struct gfc_linebuf
479 #ifdef USE_MAPPED_LOCATION
480 source_location location;
484 struct gfc_file *file;
485 struct gfc_linebuf *next;
492 #define gfc_linebuf_header_size (offsetof (gfc_linebuf, line))
503 # include <sys/param.h>
504 # define PATH_MAX MAXPATHLEN
508 extern int gfc_suppress_error;
511 /* Character length structures hold the expression that gives the
512 length of a character variable. We avoid putting these into
513 gfc_typespec because doing so prevents us from doing structure
514 copies and forces us to deallocate any typespecs we create, as well
515 as structures that contain typespecs. They also can have multiple
516 character typespecs pointing to them.
518 These structures form a singly linked list within the current
519 namespace and are deallocated with the namespace. It is possible to
520 end up with gfc_charlen structures that have nothing pointing to them. */
522 typedef struct gfc_charlen
524 struct gfc_expr *length;
525 struct gfc_charlen *next;
530 #define gfc_get_charlen() gfc_getmem(sizeof(gfc_charlen))
532 /* Type specification structure. FIXME: derived and cl could be union??? */
537 struct gfc_symbol *derived;
538 gfc_charlen *cl; /* For character types only. */
542 /* Array specification. */
545 int rank; /* A rank of zero means that a variable is a scalar. */
547 struct gfc_expr *lower[GFC_MAX_DIMENSIONS], *upper[GFC_MAX_DIMENSIONS];
551 #define gfc_get_array_spec() gfc_getmem(sizeof(gfc_array_spec))
554 /* Components of derived types. */
555 typedef struct gfc_component
560 int pointer, dimension;
565 struct gfc_expr *initializer;
566 struct gfc_component *next;
570 #define gfc_get_component() gfc_getmem(sizeof(gfc_component))
572 /* Formal argument lists are lists of symbols. */
573 typedef struct gfc_formal_arglist
575 /* Symbol representing the argument at this position in the arglist. */
576 struct gfc_symbol *sym;
577 /* Points to the next formal argument. */
578 struct gfc_formal_arglist *next;
582 #define gfc_get_formal_arglist() gfc_getmem(sizeof(gfc_formal_arglist))
585 /* The gfc_actual_arglist structure is for actual arguments. */
586 typedef struct gfc_actual_arglist
589 /* Alternate return label when the expr member is null. */
590 struct gfc_st_label *label;
592 /* This is set to the type of an eventual omitted optional
593 argument. This is used to determine if a hidden string length
594 argument has to be added to a function call. */
597 struct gfc_expr *expr;
598 struct gfc_actual_arglist *next;
602 #define gfc_get_actual_arglist() gfc_getmem(sizeof(gfc_actual_arglist))
605 /* Because a symbol can belong to multiple namelists, they must be
606 linked externally to the symbol itself. */
607 typedef struct gfc_namelist
609 struct gfc_symbol *sym;
610 struct gfc_namelist *next;
614 #define gfc_get_namelist() gfc_getmem(sizeof(gfc_namelist))
617 /* The gfc_st_label structure is a doubly linked list attached to a
618 namespace that records the usage of statement labels within that
620 /* TODO: Make format/statement specifics a union. */
621 typedef struct gfc_st_label
625 gfc_sl_type defined, referenced;
627 struct gfc_expr *format;
633 struct gfc_st_label *prev, *next;
638 /* gfc_interface()-- Interfaces are lists of symbols strung together. */
639 typedef struct gfc_interface
641 struct gfc_symbol *sym;
643 struct gfc_interface *next;
647 #define gfc_get_interface() gfc_getmem(sizeof(gfc_interface))
650 /* User operator nodes. These are like stripped down symbols. */
655 gfc_interface *operator;
656 struct gfc_namespace *ns;
661 /* Symbol nodes. These are important things. They are what the
662 standard refers to as "entities". The possibly multiple names that
663 refer to the same entity are accomplished by a binary tree of
664 symtree structures that is balanced by the red-black method-- more
665 than one symtree node can point to any given symbol. */
667 typedef struct gfc_symbol
669 const char *name; /* Primary name, before renaming */
670 const char *module; /* Module this symbol came from */
674 symbol_attribute attr;
676 /* The interface member points to the formal argument list if the
677 symbol is a function or subroutine name. If the symbol is a
678 generic name, the generic member points to the list of
681 gfc_interface *generic;
682 gfc_access component_access;
684 gfc_formal_arglist *formal;
685 struct gfc_namespace *formal_ns;
687 struct gfc_expr *value; /* Parameter/Initializer value */
689 struct gfc_symbol *result; /* function result symbol */
690 gfc_component *components; /* Derived type components */
692 struct gfc_symbol *common_next; /* Links for COMMON syms */
693 /* Make sure setup code for dummy arguments is generated in the correct
697 gfc_namelist *namelist, *namelist_tail;
699 /* Change management fields. Symbols that might be modified by the
700 current statement have the mark member nonzero and are kept in a
701 singly linked list through the tlink field. Of these symbols,
702 symbols with old_symbol equal to NULL are symbols created within
703 the current statement. Otherwise, old_symbol points to a copy of
706 struct gfc_symbol *old_symbol, *tlink;
707 unsigned mark:1, new:1;
708 /* Nonzero if all equivalences associated with this symbol have been
710 unsigned equiv_built:1;
712 struct gfc_namespace *ns; /* namespace containing this symbol */
719 /* This structure is used to keep track of symbols in common blocks. */
724 int use_assoc, saved;
725 char name[GFC_MAX_SYMBOL_LEN + 1];
730 #define gfc_get_common_head() gfc_getmem(sizeof(gfc_common_head))
733 /* A list of all the alternate entry points for a procedure. */
735 typedef struct gfc_entry_list
737 /* The symbol for this entry point. */
739 /* The zero-based id of this entry point. */
741 /* The LABEL_EXPR marking this entry point. */
743 /* The nest item in the list. */
744 struct gfc_entry_list *next;
748 #define gfc_get_entry_list() \
749 (gfc_entry_list *) gfc_getmem(sizeof(gfc_entry_list))
751 /* Within a namespace, symbols are pointed to by symtree nodes that
752 are linked together in a balanced binary tree. There can be
753 several symtrees pointing to the same symbol node via USE
756 #define BBT_HEADER(self) int priority; struct self *left, *right
758 typedef struct gfc_symtree
760 BBT_HEADER (gfc_symtree);
765 gfc_symbol *sym; /* Symbol associated with this node */
767 gfc_common_head *common;
775 /* A namespace describes the contents of procedure, module or
777 /* ??? Anything else use these? */
779 typedef struct gfc_namespace
781 /* Tree containing all the symbols in this namespace. */
782 gfc_symtree *sym_root;
783 /* Tree containing all the user-defined operators in the namespace. */
784 gfc_symtree *uop_root;
785 /* Tree containing all the common blocks. */
786 gfc_symtree *common_root;
788 /* If set_flag[letter] is set, an implicit type has been set for letter. */
789 int set_flag[GFC_LETTERS];
790 /* Keeps track of the implicit types associated with the letters. */
791 gfc_typespec default_type[GFC_LETTERS];
793 /* If this is a namespace of a procedure, this points to the procedure. */
794 struct gfc_symbol *proc_name;
795 /* If this is the namespace of a unit which contains executable
796 code, this points to it. */
797 struct gfc_code *code;
799 /* Points to the equivalences set up in this namespace. */
800 struct gfc_equiv *equiv;
801 gfc_interface *operator[GFC_INTRINSIC_OPS];
803 /* Points to the parent namespace, i.e. the namespace of a module or
804 procedure in which the procedure belonging to this namespace is
805 contained. The parent namespace points to this namespace either
806 directly via CONTAINED, or indirectly via the chain built by
808 struct gfc_namespace *parent;
809 /* CONTAINED points to the first contained namespace. Sibling
810 namespaces are chained via SIBLING. */
811 struct gfc_namespace *contained, *sibling;
813 gfc_common_head blank_common;
814 gfc_access default_access, operator_access[GFC_INTRINSIC_OPS];
816 gfc_st_label *st_labels;
817 /* This list holds information about all the data initializers in
819 struct gfc_data *data;
821 gfc_charlen *cl_list;
823 int save_all, seen_save, seen_implicit_none;
825 /* Normally we don't need to refcount namespaces. However when we read
826 a module containing a function with multiple entry points, this
827 will appear as several functions with the same formal namespace. */
830 /* A list of all alternate entry points to this procedure (or NULL). */
831 gfc_entry_list *entries;
833 /* Set to 1 if namespace is a BLOCK DATA program unit. */
838 extern gfc_namespace *gfc_current_ns;
840 /* Global symbols are symbols of global scope. Currently we only use
841 this to detect collisions already when parsing.
842 TODO: Extend to verify procedure calls. */
844 typedef struct gfc_gsymbol
846 BBT_HEADER(gfc_gsymbol);
849 enum { GSYM_UNKNOWN=1, GSYM_PROGRAM, GSYM_FUNCTION, GSYM_SUBROUTINE,
850 GSYM_MODULE, GSYM_COMMON, GSYM_BLOCK_DATA } type;
857 extern gfc_gsymbol *gfc_gsym_root;
859 /* Information on interfaces being built. */
870 extern gfc_interface_info current_interface;
873 /* Array reference. */
874 typedef struct gfc_array_ref
877 int dimen; /* # of components in the reference */
881 locus c_where[GFC_MAX_DIMENSIONS]; /* All expressions can be NULL */
882 struct gfc_expr *start[GFC_MAX_DIMENSIONS], *end[GFC_MAX_DIMENSIONS],
883 *stride[GFC_MAX_DIMENSIONS];
886 { DIMEN_ELEMENT = 1, DIMEN_RANGE, DIMEN_VECTOR, DIMEN_UNKNOWN }
887 dimen_type[GFC_MAX_DIMENSIONS];
889 struct gfc_expr *offset;
893 #define gfc_get_array_ref() gfc_getmem(sizeof(gfc_array_ref))
896 /* Component reference nodes. A variable is stored as an expression
897 node that points to the base symbol. After that, a singly linked
898 list of component reference nodes gives the variable's complete
899 resolution. The array_ref component may be present and comes
900 before the component component. */
903 { REF_ARRAY, REF_COMPONENT, REF_SUBSTRING }
906 typedef struct gfc_ref
912 struct gfc_array_ref ar;
916 gfc_component *component;
923 struct gfc_expr *start, *end; /* Substring */
931 struct gfc_ref *next;
935 #define gfc_get_ref() gfc_getmem(sizeof(gfc_ref))
938 /* Structures representing intrinsic symbols and their arguments lists. */
939 typedef struct gfc_intrinsic_arg
941 char name[GFC_MAX_SYMBOL_LEN + 1];
945 gfc_actual_arglist *actual;
947 struct gfc_intrinsic_arg *next;
953 /* Specifies the various kinds of check functions used to verify the
954 argument lists of intrinsic functions. fX with X an integer refer
955 to check functions of intrinsics with X arguments. f1m is used for
956 the MAX and MIN intrinsics which can have an arbitrary number of
957 arguments, f3ml is used for the MINLOC and MAXLOC intrinsics as
958 these have special semantics. */
963 try (*f1)(struct gfc_expr *);
964 try (*f1m)(gfc_actual_arglist *);
965 try (*f2)(struct gfc_expr *, struct gfc_expr *);
966 try (*f3)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *);
967 try (*f3ml)(gfc_actual_arglist *);
968 try (*f3red)(gfc_actual_arglist *);
969 try (*f4)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
971 try (*f5)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
972 struct gfc_expr *, struct gfc_expr *);
976 /* Like gfc_check_f, these specify the type of the simplification
977 function associated with an intrinsic. The fX are just like in
978 gfc_check_f. cc is used for type conversion functions. */
982 struct gfc_expr *(*f0)(void);
983 struct gfc_expr *(*f1)(struct gfc_expr *);
984 struct gfc_expr *(*f2)(struct gfc_expr *, struct gfc_expr *);
985 struct gfc_expr *(*f3)(struct gfc_expr *, struct gfc_expr *,
987 struct gfc_expr *(*f4)(struct gfc_expr *, struct gfc_expr *,
988 struct gfc_expr *, struct gfc_expr *);
989 struct gfc_expr *(*f5)(struct gfc_expr *, struct gfc_expr *,
990 struct gfc_expr *, struct gfc_expr *,
992 struct gfc_expr *(*cc)(struct gfc_expr *, bt, int);
996 /* Again like gfc_check_f, these specify the type of the resolution
997 function associated with an intrinsic. The fX are just like in
998 gfc_check_f. f1m is used for MIN and MAX, s1 is used for abort().
1003 void (*f0)(struct gfc_expr *);
1004 void (*f1)(struct gfc_expr *, struct gfc_expr *);
1005 void (*f1m)(struct gfc_expr *, struct gfc_actual_arglist *);
1006 void (*f2)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *);
1007 void (*f3)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1009 void (*f4)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1010 struct gfc_expr *, struct gfc_expr *);
1011 void (*f5)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1012 struct gfc_expr *, struct gfc_expr *, struct gfc_expr *);
1013 void (*s1)(struct gfc_code *);
1018 typedef struct gfc_intrinsic_sym
1020 const char *name, *lib_name;
1021 gfc_intrinsic_arg *formal;
1023 int elemental, pure, generic, specific, actual_ok, standard;
1025 gfc_simplify_f simplify;
1027 gfc_resolve_f resolve;
1028 struct gfc_intrinsic_sym *specific_head, *next;
1029 gfc_generic_isym_id generic_id;
1035 /* Expression nodes. The expression node types deserve explanations,
1036 since the last couple can be easily misconstrued:
1038 EXPR_OP Operator node pointing to one or two other nodes
1039 EXPR_FUNCTION Function call, symbol points to function's name
1040 EXPR_CONSTANT A scalar constant: Logical, String, Real, Int or Complex
1041 EXPR_VARIABLE An Lvalue with a root symbol and possible reference list
1042 which expresses structure, array and substring refs.
1043 EXPR_NULL The NULL pointer value (which also has a basic type).
1044 EXPR_SUBSTRING A substring of a constant string
1045 EXPR_STRUCTURE A structure constructor
1046 EXPR_ARRAY An array constructor. */
1050 #define GFC_RND_MODE GMP_RNDN
1052 typedef struct gfc_expr
1056 gfc_typespec ts; /* These two refer to the overall expression */
1059 mpz_t *shape; /* Can be NULL if shape is unknown at compile time */
1061 /* Nonnull for functions and structure constructors */
1062 gfc_symtree *symtree;
1083 gfc_intrinsic_op operator;
1085 struct gfc_expr *op1, *op2;
1091 gfc_actual_arglist *actual;
1092 const char *name; /* Points to the ultimate name of the function */
1093 gfc_intrinsic_sym *isym;
1105 struct gfc_constructor *constructor;
1113 #define gfc_get_shape(rank) ((mpz_t *) gfc_getmem((rank)*sizeof(mpz_t)))
1115 /* Structures for information associated with different kinds of
1116 numbers. The first set of integer parameters define all there is
1117 to know about a particular kind. The rest of the elements are
1118 computed from the first elements. */
1122 /* Values really representable by the target. */
1123 mpz_t huge, pedantic_min_int, min_int, max_int;
1125 int kind, radix, digits, bit_size, range;
1127 /* True if the C type of the given name maps to this precision.
1128 Note that more than one bit can be set. */
1129 unsigned int c_char : 1;
1130 unsigned int c_short : 1;
1131 unsigned int c_int : 1;
1132 unsigned int c_long : 1;
1133 unsigned int c_long_long : 1;
1137 extern gfc_integer_info gfc_integer_kinds[];
1144 /* True if the C++ type bool, C99 type _Bool, maps to this precision. */
1145 unsigned int c_bool : 1;
1149 extern gfc_logical_info gfc_logical_kinds[];
1154 mpfr_t epsilon, huge, tiny, subnormal;
1155 int kind, radix, digits, min_exponent, max_exponent;
1156 int range, precision;
1158 /* The precision of the type as reported by GET_MODE_PRECISION. */
1161 /* True if the C type of the given name maps to this precision.
1162 Note that more than one bit can be set. */
1163 unsigned int c_float : 1;
1164 unsigned int c_double : 1;
1165 unsigned int c_long_double : 1;
1169 extern gfc_real_info gfc_real_kinds[];
1172 /* Equivalence structures. Equivalent lvalues are linked along the
1173 *eq pointer, equivalence sets are strung along the *next node. */
1174 typedef struct gfc_equiv
1176 struct gfc_equiv *next, *eq;
1182 #define gfc_get_equiv() gfc_getmem(sizeof(gfc_equiv))
1185 /* gfc_case stores the selector list of a case statement. The *low
1186 and *high pointers can point to the same expression in the case of
1187 a single value. If *high is NULL, the selection is from *low
1188 upwards, if *low is NULL the selection is *high downwards.
1190 This structure has separate fields to allow single and double linked
1191 lists of CASEs at the same time. The singe linked list along the NEXT
1192 field is a list of cases for a single CASE label. The double linked
1193 list along the LEFT/RIGHT fields is used to detect overlap and to
1194 build a table of the cases for SELECT constructs with a CHARACTER
1197 typedef struct gfc_case
1199 /* Where we saw this case. */
1203 /* Case range values. If (low == high), it's a single value. If one of
1204 the labels is NULL, it's an unbounded case. If both are NULL, this
1205 represents the default case. */
1206 gfc_expr *low, *high;
1208 /* Next case label in the list of cases for a single CASE label. */
1209 struct gfc_case *next;
1211 /* Used for detecting overlap, and for code generation. */
1212 struct gfc_case *left, *right;
1214 /* True if this case label can never be matched. */
1219 #define gfc_get_case() gfc_getmem(sizeof(gfc_case))
1224 gfc_expr *var, *start, *end, *step;
1228 #define gfc_get_iterator() gfc_getmem(sizeof(gfc_iterator))
1231 /* Allocation structure for ALLOCATE, DEALLOCATE and NULLIFY statements. */
1233 typedef struct gfc_alloc
1236 struct gfc_alloc *next;
1240 #define gfc_get_alloc() gfc_getmem(sizeof(gfc_alloc))
1245 gfc_expr *unit, *file, *status, *access, *form, *recl,
1246 *blank, *position, *action, *delim, *pad, *iostat;
1254 gfc_expr *unit, *status, *iostat;
1262 gfc_expr *unit, *iostat;
1270 gfc_expr *unit, *file, *iostat, *exist, *opened, *number, *named,
1271 *name, *access, *sequential, *direct, *form, *formatted,
1272 *unformatted, *recl, *nextrec, *blank, *position, *action, *read,
1273 *write, *readwrite, *delim, *pad, *iolength;
1283 gfc_expr *io_unit, *format_expr, *rec, *advance, *iostat, *size;
1285 gfc_symbol *namelist;
1286 /* A format_label of `format_asterisk' indicates the "*" format */
1287 gfc_st_label *format_label;
1288 gfc_st_label *err, *end, *eor;
1290 locus eor_where, end_where;
1295 typedef struct gfc_forall_iterator
1297 gfc_expr *var, *start, *end, *stride;
1298 struct gfc_forall_iterator *next;
1300 gfc_forall_iterator;
1303 /* Executable statements that fill gfc_code structures. */
1306 EXEC_NOP = 1, EXEC_ASSIGN, EXEC_LABEL_ASSIGN, EXEC_POINTER_ASSIGN,
1307 EXEC_GOTO, EXEC_CALL, EXEC_RETURN, EXEC_ENTRY,
1308 EXEC_PAUSE, EXEC_STOP, EXEC_CONTINUE,
1309 EXEC_IF, EXEC_ARITHMETIC_IF, EXEC_DO, EXEC_DO_WHILE, EXEC_SELECT,
1310 EXEC_FORALL, EXEC_WHERE, EXEC_CYCLE, EXEC_EXIT,
1311 EXEC_ALLOCATE, EXEC_DEALLOCATE,
1312 EXEC_OPEN, EXEC_CLOSE,
1313 EXEC_READ, EXEC_WRITE, EXEC_IOLENGTH, EXEC_TRANSFER, EXEC_DT_END,
1314 EXEC_BACKSPACE, EXEC_ENDFILE, EXEC_INQUIRE, EXEC_REWIND
1318 typedef struct gfc_code
1322 struct gfc_code *block, *next;
1325 gfc_st_label *here, *label, *label2, *label3;
1326 gfc_symtree *symtree;
1327 gfc_expr *expr, *expr2;
1328 /* A name isn't sufficient to identify a subroutine, we need the actual
1329 symbol for the interface definition.
1330 const char *sub_name; */
1331 gfc_symbol *resolved_sym;
1335 gfc_actual_arglist *actual;
1336 gfc_case *case_list;
1337 gfc_iterator *iterator;
1338 gfc_alloc *alloc_list;
1341 gfc_filepos *filepos;
1342 gfc_inquire *inquire;
1344 gfc_forall_iterator *forall_iterator;
1345 struct gfc_code *whichloop;
1347 gfc_entry_list *entry;
1349 ext; /* Points to additional structures required by statement */
1351 /* Backend_decl is used for cycle and break labels in do loops, and
1352 * probably for other constructs as well, once we translate them. */
1358 /* Storage for DATA statements. */
1359 typedef struct gfc_data_variable
1363 struct gfc_data_variable *list, *next;
1368 typedef struct gfc_data_value
1370 unsigned int repeat;
1372 struct gfc_data_value *next;
1377 typedef struct gfc_data
1379 gfc_data_variable *var;
1380 gfc_data_value *value;
1383 struct gfc_data *next;
1387 #define gfc_get_data_variable() gfc_getmem(sizeof(gfc_data_variable))
1388 #define gfc_get_data_value() gfc_getmem(sizeof(gfc_data_value))
1389 #define gfc_get_data() gfc_getmem(sizeof(gfc_data))
1392 /* Structure for holding compile options */
1397 gfc_source_form source_form;
1398 int fixed_line_length;
1399 int max_identifier_length;
1403 int warn_conversion;
1404 int warn_implicit_interface;
1405 int warn_line_truncation;
1407 int warn_surprising;
1408 int warn_unused_labels;
1410 int flag_default_double;
1411 int flag_default_integer;
1412 int flag_default_real;
1414 int flag_underscoring;
1415 int flag_second_underscore;
1416 int flag_implicit_none;
1417 int flag_max_stack_var_size;
1418 int flag_module_access_private;
1419 int flag_no_backend;
1420 int flag_pack_derived;
1421 int flag_repack_arrays;
1427 int warn_nonstd_intrinsics;
1431 extern gfc_option_t gfc_option;
1434 /* Constructor nodes for array and structure constructors. */
1435 typedef struct gfc_constructor
1438 gfc_iterator *iterator;
1440 struct gfc_constructor *next;
1443 mpz_t offset; /* Record the offset of array element which appears in
1444 data statement like "data a(5)/4/". */
1445 gfc_component *component; /* Record the component being initialized. */
1448 mpz_t repeat; /* Record the repeat number of initial values in data
1449 statement like "data a/5*10/". */
1454 typedef struct iterator_stack
1456 gfc_symtree *variable;
1458 struct iterator_stack *prev;
1461 extern iterator_stack *iter_stack;
1463 /************************ Function prototypes *************************/
1466 void gfc_formalize_init_value (gfc_symbol *);
1467 void gfc_get_section_index (gfc_array_ref *, mpz_t *, mpz_t *);
1468 void gfc_assign_data_value (gfc_expr *, gfc_expr *, mpz_t);
1469 void gfc_assign_data_value_range (gfc_expr *, gfc_expr *, mpz_t, mpz_t);
1470 void gfc_advance_section (mpz_t *, gfc_array_ref *, mpz_t *);
1473 void gfc_scanner_done_1 (void);
1474 void gfc_scanner_init_1 (void);
1476 void gfc_add_include_path (const char *);
1477 void gfc_release_include_path (void);
1478 FILE *gfc_open_included_file (const char *);
1480 int gfc_at_end (void);
1481 int gfc_at_eof (void);
1482 int gfc_at_bol (void);
1483 int gfc_at_eol (void);
1484 void gfc_advance_line (void);
1485 int gfc_check_include (void);
1487 void gfc_skip_comments (void);
1488 int gfc_next_char_literal (int);
1489 int gfc_next_char (void);
1490 int gfc_peek_char (void);
1491 void gfc_error_recovery (void);
1492 void gfc_gobble_whitespace (void);
1493 try gfc_new_file (const char *, gfc_source_form);
1495 extern gfc_source_form gfc_current_form;
1496 extern char *gfc_source_file;
1497 extern locus gfc_current_locus;
1500 void *gfc_getmem (size_t) ATTRIBUTE_MALLOC;
1501 void gfc_free (void *);
1502 int gfc_terminal_width(void);
1503 void gfc_clear_ts (gfc_typespec *);
1504 FILE *gfc_open_file (const char *);
1505 const char *gfc_article (const char *);
1506 const char *gfc_basic_typename (bt);
1507 const char *gfc_typename (gfc_typespec *);
1509 #define gfc_op2string(OP) (OP == INTRINSIC_ASSIGN ? \
1510 "=" : gfc_code2string (intrinsic_operators, OP))
1512 const char *gfc_code2string (const mstring *, int);
1513 int gfc_string2code (const mstring *, const char *);
1514 const char *gfc_intent_string (sym_intent);
1516 void gfc_init_1 (void);
1517 void gfc_init_2 (void);
1518 void gfc_done_1 (void);
1519 void gfc_done_2 (void);
1522 unsigned int gfc_init_options (unsigned int, const char **);
1523 int gfc_handle_option (size_t, const char *, int);
1524 bool gfc_post_options (const char **);
1527 const char * gfc_get_string (const char *, ...) ATTRIBUTE_PRINTF_1;
1531 typedef struct gfc_error_buf
1534 char message[MAX_ERROR_MESSAGE];
1537 void gfc_error_init_1 (void);
1538 void gfc_buffer_error (int);
1540 void gfc_warning (const char *, ...);
1541 void gfc_warning_now (const char *, ...);
1542 void gfc_clear_warning (void);
1543 void gfc_warning_check (void);
1545 void gfc_error (const char *, ...);
1546 void gfc_error_now (const char *, ...);
1547 void gfc_fatal_error (const char *, ...) ATTRIBUTE_NORETURN;
1548 void gfc_internal_error (const char *, ...) ATTRIBUTE_NORETURN;
1549 void gfc_clear_error (void);
1550 int gfc_error_check (void);
1552 try gfc_notify_std (int, const char *, ...);
1554 /* A general purpose syntax error. */
1555 #define gfc_syntax_error(ST) \
1556 gfc_error ("Syntax error in %s statement at %C", gfc_ascii_statement (ST));
1558 void gfc_push_error (gfc_error_buf *);
1559 void gfc_pop_error (gfc_error_buf *);
1561 void gfc_status (const char *, ...) ATTRIBUTE_PRINTF_1;
1562 void gfc_status_char (char);
1564 void gfc_get_errors (int *, int *);
1567 void gfc_arith_init_1 (void);
1568 void gfc_arith_done_1 (void);
1571 int gfc_validate_kind (bt, int, bool);
1572 extern int gfc_index_integer_kind;
1573 extern int gfc_default_integer_kind;
1574 extern int gfc_max_integer_kind;
1575 extern int gfc_default_real_kind;
1576 extern int gfc_default_double_kind;
1577 extern int gfc_default_character_kind;
1578 extern int gfc_default_logical_kind;
1579 extern int gfc_default_complex_kind;
1580 extern int gfc_c_int_kind;
1583 void gfc_clear_new_implicit (void);
1584 try gfc_add_new_implicit_range (int, int);
1585 try gfc_merge_new_implicit (gfc_typespec *);
1586 void gfc_set_implicit_none (void);
1588 gfc_typespec *gfc_get_default_type (gfc_symbol *, gfc_namespace *);
1589 try gfc_set_default_type (gfc_symbol *, int, gfc_namespace *);
1591 void gfc_set_component_attr (gfc_component *, symbol_attribute *);
1592 void gfc_get_component_attr (symbol_attribute *, gfc_component *);
1594 void gfc_set_sym_referenced (gfc_symbol * sym);
1596 try gfc_add_allocatable (symbol_attribute *, locus *);
1597 try gfc_add_dimension (symbol_attribute *, const char *, locus *);
1598 try gfc_add_external (symbol_attribute *, locus *);
1599 try gfc_add_intrinsic (symbol_attribute *, locus *);
1600 try gfc_add_optional (symbol_attribute *, locus *);
1601 try gfc_add_pointer (symbol_attribute *, locus *);
1602 try gfc_add_result (symbol_attribute *, const char *, locus *);
1603 try gfc_add_save (symbol_attribute *, const char *, locus *);
1604 try gfc_add_saved_common (symbol_attribute *, locus *);
1605 try gfc_add_target (symbol_attribute *, locus *);
1606 try gfc_add_dummy (symbol_attribute *, const char *, locus *);
1607 try gfc_add_generic (symbol_attribute *, const char *, locus *);
1608 try gfc_add_common (symbol_attribute *, locus *);
1609 try gfc_add_in_common (symbol_attribute *, const char *, locus *);
1610 try gfc_add_data (symbol_attribute *, const char *, locus *);
1611 try gfc_add_in_namelist (symbol_attribute *, const char *, locus *);
1612 try gfc_add_sequence (symbol_attribute *, const char *, locus *);
1613 try gfc_add_elemental (symbol_attribute *, locus *);
1614 try gfc_add_pure (symbol_attribute *, locus *);
1615 try gfc_add_recursive (symbol_attribute *, locus *);
1616 try gfc_add_function (symbol_attribute *, const char *, locus *);
1617 try gfc_add_subroutine (symbol_attribute *, const char *, locus *);
1619 try gfc_add_access (symbol_attribute *, gfc_access, const char *, locus *);
1620 try gfc_add_flavor (symbol_attribute *, sym_flavor, const char *, locus *);
1621 try gfc_add_entry (symbol_attribute *, const char *, locus *);
1622 try gfc_add_procedure (symbol_attribute *, procedure_type,
1623 const char *, locus *);
1624 try gfc_add_intent (symbol_attribute *, sym_intent, locus *);
1625 try gfc_add_explicit_interface (gfc_symbol *, ifsrc,
1626 gfc_formal_arglist *, locus *);
1627 try gfc_add_type (gfc_symbol *, gfc_typespec *, locus *);
1629 void gfc_clear_attr (symbol_attribute *);
1630 try gfc_missing_attr (symbol_attribute *, locus *);
1631 try gfc_copy_attr (symbol_attribute *, symbol_attribute *, locus *);
1633 try gfc_add_component (gfc_symbol *, const char *, gfc_component **);
1634 gfc_symbol *gfc_use_derived (gfc_symbol *);
1635 gfc_symtree *gfc_use_derived_tree (gfc_symtree *);
1636 gfc_component *gfc_find_component (gfc_symbol *, const char *);
1638 gfc_st_label *gfc_get_st_label (int);
1639 void gfc_free_st_label (gfc_st_label *);
1640 void gfc_define_st_label (gfc_st_label *, gfc_sl_type, locus *);
1641 try gfc_reference_st_label (gfc_st_label *, gfc_sl_type);
1643 gfc_namespace *gfc_get_namespace (gfc_namespace *, int);
1644 gfc_symtree *gfc_new_symtree (gfc_symtree **, const char *);
1645 gfc_symtree *gfc_find_symtree (gfc_symtree *, const char *);
1646 gfc_user_op *gfc_get_uop (const char *);
1647 gfc_user_op *gfc_find_uop (const char *, gfc_namespace *);
1648 void gfc_free_symbol (gfc_symbol *);
1649 gfc_symbol *gfc_new_symbol (const char *, gfc_namespace *);
1650 int gfc_find_symbol (const char *, gfc_namespace *, int, gfc_symbol **);
1651 int gfc_find_sym_tree (const char *, gfc_namespace *, int, gfc_symtree **);
1652 int gfc_get_symbol (const char *, gfc_namespace *, gfc_symbol **);
1653 int gfc_get_sym_tree (const char *, gfc_namespace *, gfc_symtree **);
1654 int gfc_get_ha_symbol (const char *, gfc_symbol **);
1655 int gfc_get_ha_sym_tree (const char *, gfc_symtree **);
1657 int gfc_symbols_could_alias (gfc_symbol *, gfc_symbol *);
1659 void gfc_undo_symbols (void);
1660 void gfc_commit_symbols (void);
1661 void gfc_free_namespace (gfc_namespace *);
1663 void gfc_symbol_init_2 (void);
1664 void gfc_symbol_done_2 (void);
1666 void gfc_traverse_symtree (gfc_symtree *, void (*)(gfc_symtree *));
1667 void gfc_traverse_ns (gfc_namespace *, void (*)(gfc_symbol *));
1668 void gfc_traverse_user_op (gfc_namespace *, void (*)(gfc_user_op *));
1669 void gfc_save_all (gfc_namespace *);
1671 void gfc_symbol_state (void);
1673 gfc_gsymbol *gfc_get_gsymbol (const char *);
1674 gfc_gsymbol *gfc_find_gsymbol (gfc_gsymbol *, const char *);
1677 extern int gfc_init_expr;
1679 /* Given a symbol that we have decided is intrinsic, mark it as such
1680 by placing it into a special module that is otherwise impossible to
1683 #define gfc_intrinsic_symbol(SYM) SYM->module = gfc_get_string ("(intrinsic)")
1685 void gfc_intrinsic_init_1 (void);
1686 void gfc_intrinsic_done_1 (void);
1688 char gfc_type_letter (bt);
1689 gfc_symbol * gfc_get_intrinsic_sub_symbol (const char *);
1690 try gfc_convert_type (gfc_expr *, gfc_typespec *, int);
1691 try gfc_convert_type_warn (gfc_expr *, gfc_typespec *, int, int);
1692 int gfc_generic_intrinsic (const char *);
1693 int gfc_specific_intrinsic (const char *);
1694 int gfc_intrinsic_name (const char *, int);
1695 gfc_intrinsic_sym *gfc_find_function (const char *);
1697 match gfc_intrinsic_func_interface (gfc_expr *, int);
1698 match gfc_intrinsic_sub_interface (gfc_code *, int);
1701 void gfc_simplify_init_1 (void);
1703 /* match.c -- FIXME */
1704 void gfc_free_iterator (gfc_iterator *, int);
1705 void gfc_free_forall_iterator (gfc_forall_iterator *);
1706 void gfc_free_alloc_list (gfc_alloc *);
1707 void gfc_free_namelist (gfc_namelist *);
1708 void gfc_free_equiv (gfc_equiv *);
1709 void gfc_free_data (gfc_data *);
1710 void gfc_free_case_list (gfc_case *);
1713 void gfc_free_actual_arglist (gfc_actual_arglist *);
1714 gfc_actual_arglist *gfc_copy_actual_arglist (gfc_actual_arglist *);
1715 const char *gfc_extract_int (gfc_expr *, int *);
1717 gfc_expr *gfc_build_conversion (gfc_expr *);
1718 void gfc_free_ref_list (gfc_ref *);
1719 void gfc_type_convert_binary (gfc_expr *);
1720 int gfc_is_constant_expr (gfc_expr *);
1721 try gfc_simplify_expr (gfc_expr *, int);
1723 gfc_expr *gfc_get_expr (void);
1724 void gfc_free_expr (gfc_expr *);
1725 void gfc_replace_expr (gfc_expr *, gfc_expr *);
1726 gfc_expr *gfc_int_expr (int);
1727 gfc_expr *gfc_logical_expr (int, locus *);
1728 mpz_t *gfc_copy_shape (mpz_t *, int);
1729 mpz_t *gfc_copy_shape_excluding (mpz_t *, int, gfc_expr *);
1730 gfc_expr *gfc_copy_expr (gfc_expr *);
1732 try gfc_specification_expr (gfc_expr *);
1734 int gfc_numeric_ts (gfc_typespec *);
1735 int gfc_kind_max (gfc_expr *, gfc_expr *);
1737 try gfc_check_conformance (const char *, gfc_expr *, gfc_expr *);
1738 try gfc_check_assign (gfc_expr *, gfc_expr *, int);
1739 try gfc_check_pointer_assign (gfc_expr *, gfc_expr *);
1740 try gfc_check_assign_symbol (gfc_symbol *, gfc_expr *);
1742 gfc_expr *gfc_default_initializer (gfc_typespec *);
1743 gfc_expr *gfc_get_variable_expr (gfc_symtree *);
1747 extern gfc_code new_st;
1749 void gfc_clear_new_st (void);
1750 gfc_code *gfc_get_code (void);
1751 gfc_code *gfc_append_code (gfc_code *, gfc_code *);
1752 void gfc_free_statement (gfc_code *);
1753 void gfc_free_statements (gfc_code *);
1756 try gfc_resolve_expr (gfc_expr *);
1757 void gfc_resolve (gfc_namespace *);
1758 int gfc_impure_variable (gfc_symbol *);
1759 int gfc_pure (gfc_symbol *);
1760 int gfc_elemental (gfc_symbol *);
1761 try gfc_resolve_iterator (gfc_iterator *, bool);
1762 try gfc_resolve_index (gfc_expr *, int);
1765 void gfc_free_array_spec (gfc_array_spec *);
1766 gfc_array_ref *gfc_copy_array_ref (gfc_array_ref *);
1768 try gfc_set_array_spec (gfc_symbol *, gfc_array_spec *, locus *);
1769 gfc_array_spec *gfc_copy_array_spec (gfc_array_spec *);
1770 try gfc_resolve_array_spec (gfc_array_spec *, int);
1772 int gfc_compare_array_spec (gfc_array_spec *, gfc_array_spec *);
1774 gfc_expr *gfc_start_constructor (bt, int, locus *);
1775 void gfc_append_constructor (gfc_expr *, gfc_expr *);
1776 void gfc_free_constructor (gfc_constructor *);
1777 void gfc_simplify_iterator_var (gfc_expr *);
1778 try gfc_expand_constructor (gfc_expr *);
1779 int gfc_constant_ac (gfc_expr *);
1780 int gfc_expanded_ac (gfc_expr *);
1781 try gfc_resolve_array_constructor (gfc_expr *);
1782 try gfc_check_constructor_type (gfc_expr *);
1783 try gfc_check_iter_variable (gfc_expr *);
1784 try gfc_check_constructor (gfc_expr *, try (*)(gfc_expr *));
1785 gfc_constructor *gfc_copy_constructor (gfc_constructor * src);
1786 gfc_expr *gfc_get_array_element (gfc_expr *, int);
1787 try gfc_array_size (gfc_expr *, mpz_t *);
1788 try gfc_array_dimen_size (gfc_expr *, int, mpz_t *);
1789 try gfc_array_ref_shape (gfc_array_ref *, mpz_t *);
1790 gfc_array_ref *gfc_find_array_ref (gfc_expr *);
1791 void gfc_insert_constructor (gfc_expr *, gfc_constructor *);
1792 gfc_constructor *gfc_get_constructor (void);
1793 tree gfc_conv_array_initializer (tree type, gfc_expr * expr);
1794 try spec_size (gfc_array_spec *, mpz_t *);
1795 int gfc_is_compile_time_shape (gfc_array_spec *);
1797 /* interface.c -- FIXME: some of these should be in symbol.c */
1798 void gfc_free_interface (gfc_interface *);
1799 int gfc_compare_types (gfc_typespec *, gfc_typespec *);
1800 void gfc_check_interfaces (gfc_namespace *);
1801 void gfc_procedure_use (gfc_symbol *, gfc_actual_arglist **, locus *);
1802 gfc_symbol *gfc_search_interface (gfc_interface *, int,
1803 gfc_actual_arglist **);
1804 try gfc_extend_expr (gfc_expr *);
1805 void gfc_free_formal_arglist (gfc_formal_arglist *);
1806 try gfc_extend_assign (gfc_code *, gfc_namespace *);
1807 try gfc_add_interface (gfc_symbol * sym);
1810 extern gfc_st_label format_asterisk;
1812 void gfc_free_open (gfc_open *);
1813 try gfc_resolve_open (gfc_open *);
1814 void gfc_free_close (gfc_close *);
1815 try gfc_resolve_close (gfc_close *);
1816 void gfc_free_filepos (gfc_filepos *);
1817 try gfc_resolve_filepos (gfc_filepos *);
1818 void gfc_free_inquire (gfc_inquire *);
1819 try gfc_resolve_inquire (gfc_inquire *);
1820 void gfc_free_dt (gfc_dt *);
1821 try gfc_resolve_dt (gfc_dt *);
1824 void gfc_module_init_2 (void);
1825 void gfc_module_done_2 (void);
1826 void gfc_dump_module (const char *, int);
1827 bool gfc_check_access (gfc_access, gfc_access);
1830 symbol_attribute gfc_variable_attr (gfc_expr *, gfc_typespec *);
1831 symbol_attribute gfc_expr_attr (gfc_expr *);
1834 void gfc_generate_code (gfc_namespace *);
1835 void gfc_generate_module_code (gfc_namespace *);
1838 typedef int (*compare_fn) (void *, void *);
1839 void gfc_insert_bbt (void *, void *, compare_fn);
1840 void gfc_delete_bbt (void *, void *, compare_fn);
1842 /* dump-parse-tree.c */
1843 void gfc_show_namespace (gfc_namespace *);
1846 try gfc_parse_file (void);
1848 #endif /* GCC_GFORTRAN_H */