1/* struct::stack - critcl - layer 0 declarations
2 * API general utilities
3 */
4
5#ifndef _UTIL_H
6#define _UTIL_H 1
7
8#include <tcl.h>
9
10/* Allocation macros for common situations.
11 */
12
13#define ALLOC(type)    (type *) ckalloc (sizeof (type))
14#define NALLOC(n,type) (type *) ckalloc ((n) * sizeof (type))
15
16/* Assertions in general, and asserting the proper range of an array index.
17 */
18
19#undef  STACK_DEBUG
20#define STACK_DEBUG 1
21
22#ifdef STACK_DEBUG
23#define XSTR(x) #x
24#define STR(x) XSTR(x)
25#define RANGEOK(i,n) ((0 <= (i)) && (i < (n)))
26#define ASSERT(x,msg) if (!(x)) { Tcl_Panic (msg " (" #x "), in file " __FILE__ " @line " STR(__LINE__));}
27#define ASSERT_BOUNDS(i,n) ASSERT (RANGEOK(i,n),"array index out of bounds: " STR(i) " > " STR(n))
28#else
29#define ASSERT(x,msg)
30#define ASSERT_BOUNDS(i,n)
31#endif
32
33#endif /* _UTIL_H */
34
35/*
36 * Local Variables:
37 * mode: c
38 * c-basic-offset: 4
39 * fill-column: 78
40 * End:
41 */
42