On Sun, 22 Nov 2020, 15:35 emre brookes, <brookes@xxxxxxxxxxx> wrote: > I was compiling a project and received an odd message that took some > digging. > 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. > I know it's not your main question, but ... g++ -E -dD foo.cc will show all the macro definitions.
