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-rw-r--r--tests/class_construction_tracker.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/tests/class_construction_tracker.h b/tests/class_construction_tracker.h
index 03db0ab..7bf1bfd 100644
--- a/tests/class_construction_tracker.h
+++ b/tests/class_construction_tracker.h
@@ -17,6 +17,8 @@
#ifndef FRUIT_CLASS_CONSTRUCTION_TRACKER_H
#define FRUIT_CLASS_CONSTRUCTION_TRACKER_H
+#include <cstddef>
+
/**
* This class is useful to keep track of how many instances of a given type are created during the entire program
* execution.