From 738577309d2388dba616701635ae46a84934fef5 Mon Sep 17 00:00:00 2001
From: Nathan Nichols <natenichols@cox.net>
Date: Tue, 22 Feb 2022 17:18:31 -0600
Subject: [PATCH] specify CMAKE_CXX_STANDARD (#102)

* specify CMAKE_CXX_STANDARD

* add reference to range based for loop
---
 CMakeLists.txt                 | 2 ++
 src/rpc/handlers/Subscribe.cpp | 2 +-
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 9ac11d27..1c7d75a7 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -2,6 +2,8 @@ cmake_minimum_required(VERSION 3.16)
 
 project(clio VERSION 0.1.0)
 
+set(CMAKE_CXX_STANDARD 20)
+
 option(BUILD_TESTS "Build tests" TRUE)
 
 option(VERBOSE "Verbose build" TRUE)
diff --git a/src/rpc/handlers/Subscribe.cpp b/src/rpc/handlers/Subscribe.cpp
index 07c8f0d2..d5018fe9 100644
--- a/src/rpc/handlers/Subscribe.cpp
+++ b/src/rpc/handlers/Subscribe.cpp
@@ -281,7 +281,7 @@ subscribeToBooks(
     std::shared_ptr<WsBase> session,
     SubscriptionManager& manager)
 {
-    for (auto const book : books)
+    for (auto const& book : books)
     {
         manager.subBook(book, session);
     }