Add load_default_options() function template overload that accepts tracing function

1 files changed, 16 insertions, 0 deletions

diff --git a/libbutl/default-options.ixx b/libbutl/default-options.ixx
new file mode 100644
index 0000000..e1a3dcf
--- /dev/null
+++ b/libbutl/default-options.ixx
@@ -0,0 +1,16 @@
+// file      : libbutl/default-options.ixx -*- C++ -*-
+// copyright : Copyright (c) 2014-2019 Code Synthesis Ltd
+// license   : MIT; see accompanying LICENSE file
+
+LIBBUTL_MODEXPORT namespace butl //@@ MOD Clang needs this for some reason.
+{
+  template <typename O>
+  inline O
+  merge_default_options (const default_options<O>& def_ops, const O& cmd_ops)
+  {
+    return merge_default_options (
+      def_ops,
+      cmd_ops,
+      [] (const default_options_entry<O>&, const O&) {});
+  }
+}