2 files changed, 13 insertions, 0 deletions
diff --git a/butl/process b/butl/process
index 282a994..c16e39e 100644
--- a/butl/process
+++ b/butl/process
@@ -44,6 +44,12 @@ namespace butl
     process_child_error (int e): process_error (e, true) {}
   };
 
+  struct process_args
+  {
+    const char* const* argv;
+    std::size_t argc;
+  };
+
   // A process executable has three paths: initial, recall, and effective.
   // Initial is the original "command" that you specify in argv[0] and on
   // POSIX that's what ends up in the child's argv[0]. But not on Windows. On
diff --git a/butl/process-io b/butl/process-io
index 42a720a..1212b22 100644
--- a/butl/process-io
+++ b/butl/process-io
@@ -16,6 +16,13 @@ namespace butl
   {
     return o << p.recall_string ();
   }
+
+  inline std::ostream&
+  operator<< (std::ostream& o, const process_args& a)
+  {
+    process::print (o, a.argv, a.argc);
+    return o;
+  }
 }
 
 #endif // BUTL_PROCESS_IO