Re: [bug-gawk] gawk 4.2: crash

[arnold]

Hi.

Denis Shirokov <address@hidden> wrote:

> script to reproduce:
>
> BEGIN{ isarray(a) }

Yes, it's a bug. Thanks for the report.

Patch below.  I will push it into Git in the next few hours.

Arnold
----------------------------------------
diff --git a/builtin.c b/builtin.c
index 54d202d..6927205 100644
--- a/builtin.c
+++ b/builtin.c
@@ -507,7 +507,9 @@ do_isarray(int nargs)
        tmp = POP();
        if (tmp->type != Node_var_array) {
                ret = 0;
-               DEREF(tmp);
+               // could be Node_var_new
+               if (tmp->type == Node_val)
+                       DEREF(tmp);
        }
        return make_number((AWKNUM) ret);
 }