diff options
Diffstat (limited to 'array.c')
| -rw-r--r-- | array.c | 7 |
1 files changed, 5 insertions, 2 deletions
@@ -3036,8 +3036,11 @@ rb_ary_permutation(VALUE ary, VALUE num) } else { /* this is the general case */ ary = rb_ary_dup(ary); /* private defensive copy of ary */ - long p[n]; - int used[n]; + volatile VALUE t0 = rb_str_new(0, n*sizeof(long)); + long *p = (long*)RSTRING_PTR(t0); /* array indexes of current permutation */ + volatile VALUE t1 = rb_str_new(0, n*sizeof(int)); + int *used = (int*)RSTRING_PTR(t1); /* booleans: which indexes are already used */ + for(i = 0; i < n; i++) used[i] = 0; /* initialize array */ permute0(n,r,p,0,used,ary); /* compute and yield permutations */ |