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eggrobin · Apr 1, 2024 · d4a7062 · d4a7062
1 parent 655a8f8
commit d4a7062
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/testing_utilities/check_well_formedness_test.cpp b/testing_utilities/check_well_formedness_test.cpp
@@ -1,6 +1,7 @@
 #include "testing_utilities/check_well_formedness.hpp"
 
 #include <string>
+#include <utility>
 
 PRINCIPIA_CHECK_ILL_FORMED(s + 3, WITH<std::string> s);
 PRINCIPIA_CHECK_ILL_FORMED(s + "3", WITH<std::pair<double, double>> s);