On Sat, Sep 25, 2021 at 04:53:20PM +0200, Jean-Marc Lasgouttes wrote: > Le 25/09/2021 à 05:20, Scott Kostyshak a écrit : > > After building with fsanitize=undefined -fno-omit-frame-pointer, I get the > > following: > > > > $ cd lib/examples/ && lyx -e pdf Welcome.lyx > > /home/scott/lyxbuilds/master/repo/src/frontends/qt/GuiApplication.cpp:558:55: > > runtime error: member call on null pointer of type 'struct GuiApplication' > > /home/scott/lyxbuilds/master/repo/src/frontends/qt/GuiApplication.cpp:558:55: > > runtime error: member access within null pointer of type 'struct > > GuiApplication' > > What I do not understand is why it does not crash without fsanitized.
I guess it's undefined behavior? https://stackoverflow.com/questions/5431420/why-doesnt-the-program-crash-when-i-call-a-member-function-through-a-null-point > BTW, with your patch is the output pdf correct? I will look at the differences between GUI and command line, and between patch/no-patch and report back within a couple of days. Scott
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