From d33957af6cd2425c418de9ef786265c83b400131 Mon Sep 17 00:00:00 2001
From: Tomasz Golinski <tomaszg@math.uwb.edu.pl>
Date: Mon, 18 Jul 2022 19:00:48 +0200
Subject: [PATCH] Fix segfault in traildb by fixing shallow copy of
 PowertrailDB

---
 powertrail.cpp | 2 +-
 powertrail.h   | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/powertrail.cpp b/powertrail.cpp
index e64a7d4..596c571 100644
--- a/powertrail.cpp
+++ b/powertrail.cpp
@@ -143,7 +143,7 @@ void PowertrailDB::save_to_json(std::string file) {
 	datafile << j;
 };
 
-Caches_in_Powertrails::Caches_in_Powertrails(PowertrailDB db) {
+Caches_in_Powertrails::Caches_in_Powertrails(const PowertrailDB& db) {
 	for (auto& t : db.data) {
 		for (auto& c : t.second.caches) {
 			data.insert({ c, t.second.number });
diff --git a/powertrail.h b/powertrail.h
index 8c63e8d..bee01b9 100644
--- a/powertrail.h
+++ b/powertrail.h
@@ -53,7 +53,7 @@ class Caches_in_Powertrails {
 public:
 	std::unordered_map<std::string, int> data;
 
-	Caches_in_Powertrails(PowertrailDB db);
+	Caches_in_Powertrails(const PowertrailDB& db);
 	Caches_in_Powertrails(){};
 
 	void read_from_json(std::string file);