From 71aca8c86d3721bcbf21f1f1649f07cf732f2090 Mon Sep 17 00:00:00 2001
From: Alex Beregszaszi <alex@rtfs.hu>
Date: Mon, 2 Oct 2017 11:41:47 +0100
Subject: Always return a valid pointer in Exception::what()

---
 libdevcore/Exceptions.cpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/libdevcore/Exceptions.cpp b/libdevcore/Exceptions.cpp
index f422d926..25fd1478 100644
--- a/libdevcore/Exceptions.cpp
+++ b/libdevcore/Exceptions.cpp
@@ -27,7 +27,9 @@ char const* Exception::what() const noexcept
 	if (string const* cmt = comment())
 		return cmt->c_str();
 	else
-		return nullptr;
+		/// Boost accepts nullptr, but the C++ standard doesn't
+		/// and crashes on some platforms.
+		return std::exception::what();
 }
 
 string Exception::lineInfo() const
-- 
cgit