https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81233
--- Comment #7 from David Malcolm <dmalcolm at gcc dot gnu.org> --- For reference, current output of the test case from comment #0 with trunk is https://godbolt.org/z/8hYY3eaoa <source>: In function 'f': <source>:5:8: error: assignment to 'int *' from incompatible pointer type 'char *' [-Wincompatible-pointer-types] 5 | s->p = s->q; | ^ <source>:6:8: warning: assignment discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers] 6 | s->q = s->r; | ^ Ideally we'd probably add secondary locations with labels: <source>: In function 'f': <source>:5:8: error: assignment to 'int *' from incompatible pointer type 'char *' [-Wincompatible-pointer-types] 5 | s->p = s->q; | ~~~~ ^ ~~~~ | | | | int * char * <source>:6:8: warning: assignment discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers] 6 | s->q = s->r; | ~~~~ ^ ~~~ | | | | char * const char * though I don't know if the location data is available. (In reply to Eric Gallager from comment #5) [...] > -Wdiscarded-qualifiers still doesn't say quite enough, IMO Secondary locations with labels as above would help, but arguably the message text should also say the types involved, perhaps worded as: <source>:6:8: warning: assignment to 'char *' discards 'const' qualifier from pointer target type 'const char *' [-Wdiscarded-qualifiers]
