compilation

Undefined Symbols for architecture x86_64: Compiling problems

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There’s no mystery here, the linker is telling you that you haven’t defined the missing symbols, and you haven’t. Similarity::Similarity() or Similarity::~Similarity() are just missing and you have defined the others incorrectly, not etc. etc. The second one is a function called readData, only the first is the readData method of the Similarity class. To be clear about … Read more

What are the differences between make clean, make clobber, make distclean, make mrproper and make realclean?

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Trying to form my own answer based on some research. I think the approximate order of severity is; mostlyclean, clean, maintainer-clean, mrproper, distclean and finally clobber (which is combined distclean and uninstall). make clean make clean is the most basic level. It cleans up most generated files but not anything that records configuration. GNU Make … Read more