From 68108466d5d0a72fa585b18bc800fdf8f89474c7 Mon Sep 17 00:00:00 2001
From: Jingliang Wang <jwang1@futurewei.com>
Date: Sat, 27 Jun 2020 19:37:06 -0700
Subject: [PATCH] fixed gcc-9 compile issue

Signed-off-by: Jingliang Wang <jwang1@futurewei.com>
---
 base/src/UtilityFunctions.cc | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/base/src/UtilityFunctions.cc b/base/src/UtilityFunctions.cc
index 089f31be..6e3eb18a 100644
--- a/base/src/UtilityFunctions.cc
+++ b/base/src/UtilityFunctions.cc
@@ -356,10 +356,10 @@ namespace Force {
       try {
         amount = stoul(size_text);
       }
-      catch (invalid_argument) {
+      catch (invalid_argument&) {
         // Handled below by checking if amount is 0.
       }
-      catch (out_of_range) {
+      catch (out_of_range&) {
         // Handled below by checking if amount is 0.
       }
     }