From a20df96a2f77d790ae3323d90a29ef7c37707b28 Mon Sep 17 00:00:00 2001
From: Lorenzo Rovigatti <lorenzo.rovigatti@gmail.com>
Date: Fri, 8 Nov 2024 14:29:01 +0100
Subject: [PATCH] Fix a bug whereby the code would hang if bases_file (used by
 HBEnergy) was not readable

---
 src/Observables/HBEnergy.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/Observables/HBEnergy.cpp b/src/Observables/HBEnergy.cpp
index 7cb885d72..8e0cade7b 100644
--- a/src/Observables/HBEnergy.cpp
+++ b/src/Observables/HBEnergy.cpp
@@ -32,6 +32,9 @@ void HBEnergy::init() {
 		break;
 	case BASES_FROM_FILE: {
 		ifstream inp(_list_file);
+		if(!inp.good()) {
+			throw oxDNAException(Utils::sformat("HBEnergy: Can't read bases_file '%s'", _list_file));
+		}
 		while(!inp.eof()) {
 			int n;
 			inp >> n;