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8f1d2e6f49
ISO C99 (and GCC 3.x or later) lets you write a flexible array
at the end of a structure, like this:
struct frotz {
int xyzzy;
char nitfol[]; /* more */
};
GCC 2.95 and 2.96 let you to do this with "char nitfol[0]";
unfortunately this is not allowed by ISO C90.
This declares such construct like this:
struct frotz {
int xyzzy;
char nitfol[FLEX_ARRAY]; /* more */
};
and git-compat-util.h defines FLEX_ARRAY to 0 for gcc 2.95 and
empty for others.
If you are using a C90 C compiler, you should be able
to override this with CFLAGS=-DFLEX_ARRAY=1 from the
command line of "make".
Signed-off-by: Junio C Hamano <junkio@cox.net>
58 lines
1.5 KiB
C
58 lines
1.5 KiB
C
#ifndef OBJECT_H
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#define OBJECT_H
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struct object_list {
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struct object *item;
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struct object_list *next;
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const char *name;
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};
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struct object_refs {
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unsigned count;
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struct object *ref[FLEX_ARRAY]; /* more */
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};
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struct object {
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unsigned parsed : 1;
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unsigned used : 1;
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unsigned int flags;
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unsigned char sha1[20];
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const char *type;
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struct object_refs *refs;
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void *util;
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};
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extern int track_object_refs;
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extern int nr_objs;
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extern struct object **objs;
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/** Internal only **/
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struct object *lookup_object(const unsigned char *sha1);
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/** Returns the object, having looked it up as being the given type. **/
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struct object *lookup_object_type(const unsigned char *sha1, const char *type);
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void created_object(const unsigned char *sha1, struct object *obj);
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/** Returns the object, having parsed it to find out what it is. **/
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struct object *parse_object(const unsigned char *sha1);
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/** Returns the object, with potentially excess memory allocated. **/
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struct object *lookup_unknown_object(const unsigned char *sha1);
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struct object_refs *alloc_object_refs(unsigned count);
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void set_object_refs(struct object *obj, struct object_refs *refs);
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void mark_reachable(struct object *obj, unsigned int mask);
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struct object_list *object_list_insert(struct object *item,
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struct object_list **list_p);
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void object_list_append(struct object *item,
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struct object_list **list_p);
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unsigned object_list_length(struct object_list *list);
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int object_list_contains(struct object_list *list, struct object *obj);
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#endif /* OBJECT_H */
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