Error in release mode: The program has unexpectedly finished.

  • When I run my code in Qt in Debug mode, it works correctly. But it does not work in release mode.
    The following message displays: "The program has unexpectedly finished. D: \ Engineering \ DyBlend1.2 \ release \ DyBlend4.exe crashed."
    Already searched in other topics but I not find the solution.
    Anyone have any ideas?
    I use MinGW

  • Any other information? What does the debugger say about where or what crashed?

    I had a somewhat similar problem using VC++ (ver 6) back in the old days. I could only compile this one particular program for debug build as release build would crash the compiler (only message I got from the crash was to contact Microsoft and report the error - bleh!). It turns out it was a very subtle mistake in an inline function; it took me a long time to find it.

  • I am not sure about MinGW,
    but if it was VC I would say 90% of release only errors are
    lack of initialization.
    In debug memory is always initialized to 0. When in release it is not.

  • I very much doubt it is MinGW. I have used many versions of this for quite a few years now and never had this issue.

    Lack of initialization makes sense.

    Another possibility is some optimization is done that has a detrimental effect on your program. This is rare but I have seen one example of this (in my case it was related to a loop - needed to use the keyword 'volatile' on one of the variables).

Log in to reply

Looks like your connection to Qt Forum was lost, please wait while we try to reconnect.