include/types: fixed compile warning for signed/unsigned comparison

Signed-off-by: Jason Dillaman <dillaman@redhat.com>

diff --git a/src/include/types.h b/src/include/types.h
index 73123bc9733f188365509694dea7ed00e3d704b2..8103cabbb3656cbf4272f1b2152f1a30522f392d 100644 (file)
--- a/src/include/types.h
+++ b/src/include/types.h
@@ -158,7 +158,7 @@ inline std::ostream& operator<<(std::ostream& out, const std::deque<A,Alloc>& v)
 
 template<typename... Ts>
 inline std::ostream& operator<<(std::ostream& out, const std::tuple<Ts...> &t) {
-  auto f = [n = sizeof...(Ts), i = 0, &out](const auto& e) mutable {
+  auto f = [n = sizeof...(Ts), i = 0U, &out](const auto& e) mutable {
     out << e;
     if (++i != n)
       out << ",";