https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108310
--- Comment #5 from Eric Gallager <egallager at gcc dot gnu.org> --- (In reply to Jonathan Wakely from comment #4) > void f(float); > > void g() > { > f(1.0); > } > > conv.c: In function ‘g’: > conv.c:5:5: warning: passing argument 1 of ‘f’ as ‘float’ rather than > ‘double’ due to prototype > 5 | f(1.0); > | ^~~ Thanks, which testsuite subdirectory would this go in?