add print_no_space function for use in first round

example.cpp

@@ -72,6 +72,11 @@ signed main() {
   print(tuple{unordered_map<int, string>{{3,"three"},{1,"one"}}});
   print(unordered_set<int>{3,1,4});
 
+  print_no_space("Case #", 0, ": ");
+  print_no_space(42);
+  print_no_space();
+  print();
+
   redirect_input("example.in");
   print("reading from example.in:", read_string());
   redirect_input("example.in");

include/bits/soi-io.hpp

@@ -97,4 +97,10 @@ void print() {
   std::cout << '\n';
 }
 
+template <typename... Args>
+void print_no_space(Args&&... args) {
+  using expander = bool[];
+  (void)expander{0, (soi::io::print(std::cout, std::forward<Args>(args)), false)...};
+}
+
 #endif // SOI_HEADER_IO