Dear GPC Users, The GPC manual says I can turn off range checking with {$R-} or with the command-line option --no-range-checking. I tried both, but the compiler gives me an error: unrecognised directive. I'm using GPC for MacOSX compiled with GCC 3.3. Can I turn off range checking? I translated a few thousand lines of Code Warrior Pascal into GPC Pascal. As I did so, I took the opportunity to make use of GPC's wonderful dynamic schemata types, so I removed all my ugly pointer arithmatic, which I had previously used to access dynamically allocated blocks of memory. My translated code runs at half the speed of my original code. I don't think it is the dynamic schemata, but I thought I would turn off the range checking just to see. What other default compiler options might slow down the code? Should I turn off debugging information? Yours, Kevan Hashemi