# HG changeset patch
# User Daniel J Sebald <daniel.sebald@ieee.org>
# Date 1424998678 21600
# Node ID 60fe3ef12bb0c1ea0a08b52ac9f0db4640286b3d
# Parent  c7c50030e76c6110ca47571e785f8699f68cbb95
Correct test for string-not-found, avoid substr crash in drawnow() (bug #44292)

* graphics.cc (drawnow): Use proper check for a size_t value being not-found,
rather than treating as signed number.

diff -r c7c50030e76c -r 60fe3ef12bb0 libinterp/corefcn/graphics.cc
--- a/libinterp/corefcn/graphics.cc	Fri Feb 27 09:44:58 2015 -0500
+++ b/libinterp/corefcn/graphics.cc	Thu Feb 26 18:57:58 2015 -0600
@@ -11070,7 +11070,7 @@
               if (! error_state)
                 {
                   size_t pos = file.find_first_not_of ("|");
-                  if (pos > 0)
+                  if (pos != std::string::npos)
                     file = file.substr (pos);
                   else
                     {