From 2a1ca6ae74350aaaeee8671ea381cb78f46ce155 Mon Sep 17 00:00:00 2001
From: Kevin Witlox <kevin.witlox@upcmail.nl>
Date: Thu, 7 Jul 2022 14:39:26 +0200
Subject: [PATCH] Fix cryptic assert statement in oram.py

---
 Compiler/oram.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/Compiler/oram.py b/Compiler/oram.py
index d4b43438..f218dfdb 100644
--- a/Compiler/oram.py
+++ b/Compiler/oram.py
@@ -1227,7 +1227,8 @@ class TreeORAM(AbstractORAM):
         """ Batch initalization. Obliviously shuffles and adds N entries to
             random leaf buckets. """
         m = len(values)
-        assert((m & (m-1)) == 0)
+        if not (m & (m-1)) == 0:
+            raise CompilerError('Batch size must a power of 2.')
         if m != self.size:
             raise CompilerError('Batch initialization must have N values.')
         if self.value_type != sint: