1 files changed, 19 insertions, 2 deletions
diff --git a/hello/hello b/hello/hello
index 4f85114..75a47a0 100644
--- a/hello/hello
+++ b/hello/hello
@@ -4,8 +4,25 @@
 
 #include <string>
 
+#include <format/format>
+
+#include <hello/export>
+
 namespace hello
 {
-  void
-  say (const std::string& name);
+  // If you compare this interface to version 1.0, then you will notice that
+  // while it is API/source-compatible (the signature of say() is unchanged)
+  // it is not ABI/binary-compatible (say() is now inline).
+  //
+  // Notice also that inline say() calls format() which means libformat is an
+  // interface dependency of libhello.
+
+  LIBHELLO_EXPORT void
+  say_formatted (const std::string& message);
+
+  inline void
+  say (const std::string& name)
+  {
+    say_formatted (format ("Hello", name));
+  }
 }