debugging issue with iphone simulator 4.0

Friends,

I am building and debugging my xproj. Now the control is not stopping at the breakpoint i kept in the program but it is stopping at the return statement of operator++() in the stl_iterator.h file. After I press Continue the code is giving expected results but the thing is I cannot see the step by step debugging. Can any one give me clue why it is happening so, always i see the control at same position. I cleaned all targets and tried but no luck.

Active SDK = iphonesimulator4.0, Active Configuration = Build. (I used C++ in the code).

With iphoneSImulator3开发者_运维技巧.1.2, i can able to debug step-by-step for the same code.

Thanks in Advance, Anil

Sometimes the compiler will optimize your code and make breakpoints move around. Be sure to turn off all optimizations when building for debugging purposes; this should already be set in the “Debug” build setting.