1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
|
/* ********************************************************************
*
* Varray.h -- header file for varray.c which provides a generic
* set of functions to handle variable sized arrays.
*
* originally by Jiang Wu
* ********************************************************************/
#ifndef _VARRAY_H_
#define _VARRAY_H_
typedef struct _varray
{
size_t nobj; /* number of objects in this array */
size_t maxObj; /* max. number of objects in this array */
size_t size; /* size of each element in the array */
void *val; /* array of elements */
} Varray;
/* type for custom copying function */
typedef void (*CopyingFunct) (void *from, void *to);
#define VARRAY_INITIAL_SIZE 32
#define ENLARGE_VARRAY(ARRAY, INC) \
( \
(ARRAY)->maxObj += (INC), \
(ARRAY)->val = (void *) realloc((ARRAY)->val, \
(ARRAY)->size * (ARRAY)->maxObj) \
)
#define VARRAY_NTH(VAL, SIZE, N) (((char *) (VAL)) + (SIZE) * (N))
#define FreeVarray(ARRAY) \
if ((ARRAY) != NULL) { free((ARRAY)->val); free((ARRAY)); (ARRAY) = NULL ; }
#define ModifyVarray(ARRAY, N, NEW, COPY) \
if ((N) < (ARRAY)->nobj) \
(COPY)(VARRAY_NTH((ARRAY)->val, (ARRAY)->size, (N)), (NEW))
#define GetVarray(ARRAY, N) \
((N) < (ARRAY)->nobj ? VARRAY_NTH((ARRAY)->val, (ARRAY)->size, (N)) \
: NULL)
extern Varray *NewVarray(size_t nobj, size_t size);
extern int AppendVarray(Varray * array, void *value, CopyingFunct copy);
#endif /* _VARRAY_H_ */
|
