From 8fc35fa32afca70894dfc650fa84ef04970087fd Mon Sep 17 00:00:00 2001
From: Nick Gasson <nick@nickg.me.uk>
Date: Sat, 6 Sep 2008 13:23:55 +0100
Subject: [PATCH] Avoid emitting empty string at end of $display translation

This happened if the last part of a format string was a % code.
---
 tgt-vhdl/display.cc | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/tgt-vhdl/display.cc b/tgt-vhdl/display.cc
index b230002cc..05bbe944a 100644
--- a/tgt-vhdl/display.cc
+++ b/tgt-vhdl/display.cc
@@ -169,8 +169,10 @@ int draw_stask_display(vhdl_procedural *proc, stmt_container *container,
             else
                ss << *p;
          }
-         
-         display_write(container, new vhdl_const_string(ss.str().c_str()));
+
+         // Call Write on any non-empty string data left in the buffer
+         if (!ss.str().empty())  
+            display_write(container, new vhdl_const_string(ss.str().c_str()));
       }
       else {
          vhdl_expr *base = translate_expr(net);