type_caster<std::function>: allow None values in both directions

2016-08-18 11:18:12 +02:00
parent 0b63231bae
commit 8de0437e46
4 changed files with 13 additions and 1 deletions
@@ -38,7 +38,10 @@ py::cpp_function test_callback5() {
 int dummy_function(int i) { return i + 1; }
 int dummy_function2(int i, int j) { return i + j; }
 std::function<int(int)> roundtrip(std::function<int(int)> f) { 
-    std::cout << "roundtrip.." << std::endl;
+    if (!f)
+        std::cout << "roundtrip (got None).." << std::endl;
+    else
+        std::cout << "roundtrip.." << std::endl;
    return f;
 }