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-rw-r--r--src/utils/cpp/concepts.hpp6
1 files changed, 6 insertions, 0 deletions
diff --git a/src/utils/cpp/concepts.hpp b/src/utils/cpp/concepts.hpp
index 597179e1..04b2bfcc 100644
--- a/src/utils/cpp/concepts.hpp
+++ b/src/utils/cpp/concepts.hpp
@@ -66,4 +66,10 @@ concept ClockHasFromTime = requires(std::time_t const t) {
T::from_time_t(t);
};
+template <typename T>
+concept StrMapConstForwardIterator = requires(T const c) {
+ { (*c).first }
+ ->same_as<std::string const>;
+};
+
#endif // INCLUDED_SRC_UTILS_CPP_CONCEPTS_HPP