https://gcc.gnu.org/bugzilla/show_bug.cgi?id=43673
Eric Gallager <egallager at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |NEW Last reconfirmed| |2017-07-26 CC| |egallager at gcc dot gnu.org Ever confirmed|0 |1 --- Comment #2 from Eric Gallager <egallager at gcc dot gnu.org> --- Confirmed, although for me it also prints an additional error about my target lacking support for decimal floating point: $ /usr/local/bin/gcc -Wall -c 43673.c 43673.c: In function ‘main’: 43673.c:7:2: error: decimal floating point not supported for this target _Decimal64 e = 0.1dd; ^~~~~~~~~~ 43673.c:9:13: warning: use of ‘D’ length modifier with ‘a’ type character has either no effect or undefined behavior [-Wformat=] printf ("%Da\n", e); ^