http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49152
--- Comment #33 from Manuel López-Ibáñez <manu at gcc dot gnu.org> 2012-04-02 17:15:47 UTC --- (In reply to comment #32) > (In reply to comment #31) > > Well, that is reassuring. Then, will we still pretty-print expressions in > > diagnostics once we have the caret? > > No, there should be no need to. As a first minimal step, would a first patch be enough that simply: * Adds an option to disable/enable the caret? By default on if(isatty), otherwise off. * Implements the caret by reopening the file, looks for the appropriate line, and prints this line, then prints a '^' below it using the column info. Of course this may fail in some cases, like non-ANSI input, and not preprocessing, but it will work in 99% of the cases. In any case, it is not clear to me that we want to print the preprocessed line instead of the original text.
