From 4f9f66262d0ec7b3993907f9363d5cc6ebba8e05 Mon Sep 17 00:00:00 2001
From: Gleb Mazovetskiy <glex.spb@gmail.com>
Date: Sat, 15 Dec 2018 18:49:52 +0000
Subject: [PATCH] Catch exceptions by reference

Fixes `-Wcatch-value` warnings reported by gcc 8.2.0
---
 src/fn_strings.cpp | 6 +++---
 src/json.cpp       | 4 ++--
 2 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/src/fn_strings.cpp b/src/fn_strings.cpp
index 780e7d8e6..1f33c343d 100644
--- a/src/fn_strings.cpp
+++ b/src/fn_strings.cpp
@@ -14,15 +14,15 @@ namespace Sass {
       try {
        throw;
       }
-      catch (utf8::invalid_code_point) {
+      catch (utf8::invalid_code_point&) {
         std::string msg("utf8::invalid_code_point");
         error(msg, pstate, traces);
       }
-      catch (utf8::not_enough_room) {
+      catch (utf8::not_enough_room&) {
         std::string msg("utf8::not_enough_room");
         error(msg, pstate, traces);
       }
-      catch (utf8::invalid_utf8) {
+      catch (utf8::invalid_utf8&) {
         std::string msg("utf8::invalid_utf8");
         error(msg, pstate, traces);
       }
diff --git a/src/json.cpp b/src/json.cpp
index 8f433f5d0..f7d06e4c7 100644
--- a/src/json.cpp
+++ b/src/json.cpp
@@ -402,7 +402,7 @@ char *json_encode_string(const char *str)
   try {
     emit_string(&sb, str);
   }
-  catch (std::exception) {
+  catch (std::exception&) {
     sb_free(&sb);
     throw;
   }
@@ -421,7 +421,7 @@ char *json_stringify(const JsonNode *node, const char *space)
     else
       emit_value(&sb, node);
   }
-  catch (std::exception) {
+  catch (std::exception&) {
     sb_free(&sb);
     throw;
   }