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by boolemancer
836 days ago
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> Often yes. Sometimes, no. You haven't enjoyed C++ until you get reports of the app intermittently crashing, and your build at the same version just won't. That's okay, it's probably just some bank in a random country that requires some software package to be installed, presumably in the interest of security, which injects a dll into every process on the machine and unsurprisingly has a bug which causes your process to crash at random in only that part of the world. |
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You don't even have to get that far. Shell extensions (for file open or save dialogs) and printer drivers also introduce arbitrary DLLs to your processes. And some of them are compiled in an old version of IIRC Delphi or Turbo Pascal, which on the DLL startup code unconditionally changes the floating point control word to something which causes unexpected behavior in some framework you're using.
(We ended up wrapping all calls to file open or save or print dialogs with code to save and restore the floating point control word, just in case they had loaded one of these annoying DLLs.)