Is it possible to change the BOOL value from true to false or vice versa while I'm in debug mode?
In the Xcode debugger, where it shows local var values, you can double-click on the value and edit it while you are at a breakpoint. It can be faster than printing everything on the console.
With the LLDB debugger:
If you run your code and stop at that breakpoint, you can simply enter:
expr myString = @"New string" expr myBooleanValue = NO
and etc.
, , BOOL var = NO; , (gdb) set var = YES, . , po var .
BOOL var = NO;
set var = YES
po var