diff --git a/comp_bench/cbench_submdspan.cpp.erb b/comp_bench/cbench_submdspan.cpp.erb
index 7c894b28..318e78d9 100644
--- a/comp_bench/cbench_submdspan.cpp.erb
+++ b/comp_bench/cbench_submdspan.cpp.erb
@@ -28,6 +28,7 @@ int test(int* data) {
   <% end %>
   ;
   #endif
+  return 0;
 }
 
 int main() {}
diff --git a/examples/dot_product/dot_product.cpp b/examples/dot_product/dot_product.cpp
index f4202861..48ba8fc8 100644
--- a/examples/dot_product/dot_product.cpp
+++ b/examples/dot_product/dot_product.cpp
@@ -56,8 +56,8 @@ T dot_product(
 ) //requires ExtsA::rank() == ExtsB::rank() && ExtsA::rank() == 2
 {
   T result = 0;
-  for(int i = 0; i < a.extent(0); ++i) {
-    for(int j = 0; j < a.extent(1); ++j) {
+  for (size_t i = 0; i < a.extent(0); ++i) {
+    for (size_t j = 0; j < a.extent(1); ++j) {
 #if MDSPAN_USE_BRACKET_OPERATOR
       result += a[i, j] * b[i, j];
 #else
@@ -79,8 +79,8 @@ void fill_in_order(
 ) // requires ExtsA::rank() == 2
 {
   T count = 0;
-  for(int i = 0; i < a.extent(0); ++i) {
-    for(int j = 0; j < a.extent(1); ++j) {
+  for(size_t i = 0; i < a.extent(0); ++i) {
+    for (size_t j = 0; j < a.extent(1); ++j) {
 #if MDSPAN_USE_BRACKET_OPERATOR
       a[i, j] = count++;
 #else