On Mon, 23 Nov 2020 at 12:25, emre brookes wrote: > > I was compiling a project and received an odd message that took some > digging. Didn't you already send this yesterday? > e.g. > > file.cpp:#:#: error: expected unqualified-id before numeric constant > # | if ( inttype == MyClass::ERROR ) > ^~~~~ > where MyClass::ERROR is an enum. > > Took some digging to find out ERROR was somewhere #define'd and the cure > was to #undef ERROR > Could never find out *where* it was defined - recursively searched all > include files of the project and /usr/include etc. > Regardless, it would have been very helpful to know in the error > messages that a #define was active or to have the ERROR replaced by the > macro substitution. > > Is it possible to get any macro expansion information in error messages? > I didn't see a compiler flag for to get this information, but I might > have missed it. > If not, it would be a nice feature to have. > > Cheers, > Emre. >
