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-rw-r--r--kms++util/inc/kms++util/resourcemanager.h2
-rw-r--r--kms++util/inc/kms++util/stopwatch.h2
-rw-r--r--kms++util/inc/kms++util/strhelpers.h2
3 files changed, 6 insertions, 0 deletions
diff --git a/kms++util/inc/kms++util/resourcemanager.h b/kms++util/inc/kms++util/resourcemanager.h
index 11c11b3..78a2b9c 100644
--- a/kms++util/inc/kms++util/resourcemanager.h
+++ b/kms++util/inc/kms++util/resourcemanager.h
@@ -1,3 +1,5 @@
+#pragma once
+
#include <kms++/kms++.h>
#include <set>
#include <string>
diff --git a/kms++util/inc/kms++util/stopwatch.h b/kms++util/inc/kms++util/stopwatch.h
index 9b60fa1..ea44ba4 100644
--- a/kms++util/inc/kms++util/stopwatch.h
+++ b/kms++util/inc/kms++util/stopwatch.h
@@ -1,3 +1,5 @@
+#pragma once
+
#include <chrono>
class Stopwatch
diff --git a/kms++util/inc/kms++util/strhelpers.h b/kms++util/inc/kms++util/strhelpers.h
index c4032d7..c352fad 100644
--- a/kms++util/inc/kms++util/strhelpers.h
+++ b/kms++util/inc/kms++util/strhelpers.h
@@ -1,3 +1,5 @@
+#pragma once
+
#include <sstream>
#include <string>
#include <vector>