1/* Public domain. */
 2
 3#ifndef GEN_ALLOC_DEFS_H
 4#define GEN_ALLOC_DEFS_H
 5
 6#define GEN_ALLOC_ready(ta,type,field,len,a,i,n,x,base,ta_ready) \
 7int ta_ready(register ta *x,register unsigned int n) \
 8{ register unsigned int i; \
 9  if (x->field) { \
10    i = x->a; \
11    if (n > i) { \
12      x->a = base + n + (n >> 3); \
13      if (alloc_re(&x->field,i * sizeof(type),x->a * sizeof(type))) return 1; \
14      x->a = i; return 0; } \
15    return 1; } \
16  x->len = 0; \
17  return !!(x->field = (type *) alloc((x->a = n) * sizeof(type))); }
18
19#define GEN_ALLOC_readyplus(ta,type,field,len,a,i,n,x,base,ta_rplus) \
20int ta_rplus(register ta *x,register unsigned int n) \
21{ register unsigned int i; \
22  if (x->field) { \
23    i = x->a; n += x->len; \
24    if (n > i) { \
25      x->a = base + n + (n >> 3); \
26      if (alloc_re(&x->field,i * sizeof(type),x->a * sizeof(type))) return 1; \
27      x->a = i; return 0; } \
28    return 1; } \
29  x->len = 0; \
30  return !!(x->field = (type *) alloc((x->a = n) * sizeof(type))); }
31
32#define GEN_ALLOC_append(ta,type,field,len,a,i,n,x,base,ta_rplus,ta_append) \
33int ta_append(register ta *x,register const type *i) \
34{ if (!ta_rplus(x,1)) return 0; x->field[x->len++] = *i; return 1; }
35
36#endif