https://gcc.gnu.org/bugzilla/show_bug.cgi?id=52952
--- Comment #53 from David Malcolm <dmalcolm at gcc dot gnu.org> --- (In reply to Manuel López-Ibáñez from comment #51) > 2. Locations within strings expanded from a macro (2) should also be fixed for gcc 9 by r264887: /tmp/foo.c: In function ‘foo’: /tmp/foo.c:2:25: warning: format ‘%d’ expects argument of type ‘int’, but argument 2 has type ‘double’ [-Wformat=] 2 | #define c " %d %d " | ^~~~~~~~~ /tmp/foo.c:3:20: note: in expansion of macro ‘c’ 3 | __builtin_printf(c, 0.5, 0); | ^ /tmp/foo.c:2:28: note: format string is defined here 2 | #define c " %d %d " | ~^ | | | int | %f /tmp/foo.c:6:20: warning: format ‘%d’ expects argument of type ‘int’, but argument 2 has type ‘double’ [-Wformat=] 6 | __builtin_printf(a, 0.5); | ^ ~~~ | | | double (same output for both C and C++) > 3. Location within strings from a const char array. (3) isn't yet fixed, as can be seen above.
