What do these line numbers mean in this error?

Question

When compiling some code, I get an error like:

endpointer.h:88:24: error: expected ‘)’ before ‘*’ token

What does the :88:24 mean?

Answer 1

The first bit is the line, the other the column. You should read it like this:

In file endpointer.h at line 88 and column 24

Answer 2

It's the line number and the column number in your code where the error occured. It means you forgot a character.