1 files changed, 1 insertions, 6 deletions
diff --git a/Rx/v2/examples/doxygen/range.cpp b/Rx/v2/examples/doxygen/range.cpp
index 7b84d7f..69eecbd 100644
--- a/Rx/v2/examples/doxygen/range.cpp
+++ b/Rx/v2/examples/doxygen/range.cpp
@@ -13,12 +13,7 @@ SCENARIO("range sample"){
     printf("//! [range sample]\n");
 }
 
-#include <iostream>
-std::string get_pid() {
-    std::stringstream s;
-    s << std::this_thread::get_id();
-    return s.str();
-}
+std::string get_pid();
 
 SCENARIO("threaded range sample"){
     printf("//! [threaded range sample]\n");