From 3dda39bce3994bfdeb72ae209ea1f20403a3f3c6 Mon Sep 17 00:00:00 2001
From: Martin Whitaker <mageia@martin-whitaker.me.uk>
Date: Wed, 3 Nov 2021 17:50:45 +0000
Subject: [PATCH] Handle run-time out-of-bounds access for wire real arrays
 (issue #556).

---
 vvp/array.cc | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/vvp/array.cc b/vvp/array.cc
index 3c53e50aa..0fea91c4a 100644
--- a/vvp/array.cc
+++ b/vvp/array.cc
@@ -717,6 +717,9 @@ double __vpiArray::get_word_r(unsigned address)
 	    return val;
       }
 
+      if (address >= get_size())
+	    return 0.0;
+
       assert(nets);
       vpiHandle word = nets[address];
       struct __vpiRealVar*vsig = dynamic_cast<__vpiRealVar*>(word);