From 26abf44d2f28031a07105a2d9768d5a57ea1f88f Mon Sep 17 00:00:00 2001
From: Daniel Krebs <github@daniel-krebs.net>
Date: Fri, 20 Jul 2018 16:50:54 +0200
Subject: [PATCH] villas/memory: add sanity check to deny allocating zero-sized
 memory

---
 fpga/include/villas/memory.hpp | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/fpga/include/villas/memory.hpp b/fpga/include/villas/memory.hpp
index a168dce40..6f608ae89 100644
--- a/fpga/include/villas/memory.hpp
+++ b/fpga/include/villas/memory.hpp
@@ -136,6 +136,12 @@ public:
 	MemoryAccessor<T>
 	allocate(size_t num)
 	{
+		if(num == 0) {
+			// doesn't make sense to allocate an empty block
+			logger->error("Trying to allocate empty memory");
+			throw std::bad_alloc();
+		}
+
 		const size_t size = num * sizeof(T);
 		auto mem = allocateBlock(size);