lldb - fix misleading "valid target indexes are" error message

See http://reviews.llvm.org/D4430 for more details.

Change by Paul Osmialowski.

llvm-svn: 216766

1 files changed, 10 insertions, 3 deletions

diff --git a/lldb/source/Commands/CommandObjectTarget.cpp b/lldb/source/Commands/CommandObjectTarget.cpp
index 24a6b9dcadb..024f7b5a041 100644
--- a/lldb/source/Commands/CommandObjectTarget.cpp
+++ b/lldb/source/Commands/CommandObjectTarget.cpp
@@ -545,9 +545,16 @@ protected:
                 }
                 else
                 {
-                    result.AppendErrorWithFormat ("index %u is out of range, valid target indexes are 0 - %u\n", 
-                                                  target_idx,
-                                                  num_targets - 1);
+                    if (num_targets > 0)
+                    {
+                        result.AppendErrorWithFormat ("index %u is out of range, valid target indexes are 0 - %u\n",
+                                                      target_idx,
+                                                      num_targets - 1);
+                    } else
+                    {
+                        result.AppendErrorWithFormat ("index %u is out of range since there are no active targets\n",
+                                                      target_idx);
+                    }
                     result.SetStatus (eReturnStatusFailed);
                 }
             }