char * type caster: turn null pointers into a Python None object (

#317)
wjakob · Oct 9, 2023 · 30a6bac · 30a6bac
1 parent 4dd7459
commit 30a6bac
Showing 1 changed file with 5 additions and 0 deletions.
diff --git a/include/nanobind/nb_cast.h b/include/nanobind/nb_cast.h
@@ -218,6 +218,11 @@ template <> struct type_caster<char> {
 
     static handle from_cpp(const char *value, rv_policy,
                            cleanup_list *) noexcept {
+        if (value == nullptr) {
+            PyObject* result = Py_None;
+            Py_INCREF(result);
+            return result;
+        }
         return PyUnicode_FromString(value);
     }