Fix potential invalid stack variable access in test code

This code was (and is still) commented out but it *would* trigger
a "stack buffer overflow" error *if* uncommented.

The new code demonstrates how a binary object (Fl_Preferences 'bed')
can be dumped to a preferences file in binary format (if activated).

1 files changed, 6 insertions, 3 deletions

diff --git a/test/preferences.fl b/test/preferences.fl
index 1f2b5d098..e4fb3c5ca 100644
--- a/test/preferences.fl
+++ b/test/preferences.fl
@@ -471,7 +471,10 @@ Function {writePrefs()} {open return_type void
     fl_message( "Assertion failed:\\nNot all group entries were found!" );
 
   /* sample code only: */
-  //unsigned int hex = 0x2387efcd;
-  //eat.set( "binFoo", (void*)&hex, sizeof( unsigned int ) );
-  //eat.set( "binFoo2", (void*)&bed, 256 );} {}
+  // unsigned int hex = 0xefbeadde;
+  // unsigned int size_of_bed = sizeof( bed ); // size of Fl_Preferences 'bed'
+  // eat.set( "binFoo", (void*)&hex, sizeof( unsigned int ) );
+  // eat.set( "SizeOfBed", (int)size_of_bed );
+  // eat.set( "Prefs_Bed", (void*)&bed, sizeof( bed ) );} {selected
+  }
 }