From 7fb2dadba7073da8eb04c044e8b6425949b4695b Mon Sep 17 00:00:00 2001
From: Hawkwood <2041829103@qq.com>
Date: Fri, 3 Nov 2017 08:43:55 +0800
Subject: [PATCH] Fix cmul (#1822)

* fix CMul

* 1697 issue

*  add exception capture and modify unit test