main.cpp: error out when file/path provided by `-I` or `-include=`, or the input does not exist#435

Merged

firewave merged 3 commits intodanmar:masterfrom

firewave:main-err

Oct 1, 2025

Commits on Sep 29, 2025

main.cpp: replaced `std::exit()` with `return`
firewave
committed
main.cpp: error out when file/path provided by `-I` or `-include=`, or the input do not exist
firewave
committed
integration_test.py: added tests for missing files
firewave
committed