If I have foo.h with: void foo(); struct Bar { int field; }; And main.cpp with: extern "C" { #include "foo.h" } int main() { foo(); Bar* b; int x = b->field; } The call to foo appears in black and doesn't show a tooltip. The same happens with 'Bar' and 'field'. However, nothing is underlined as an error either. As a workaround, I can remove (or comment out) the extern "C" wrapper, save the file, and reload. Then the highlighting starts working. Now I can add extern "C" again and it keeps working. If I reload the file I have to do the workaround again. Note that this doesn't happen if it's all in the same file, ie. having extern "C" { void foo(); } in either the .cpp or in the header.
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This bug has been in NEEDSINFO status with no change for at least 30 days. The bug is now closed as RESOLVED > WORKSFORME due to lack of needed information. For more information about our bug triaging procedures please read the wiki located here: https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging Thank you for helping us make KDE software even better for everyone!