https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105501
anlauf at gcc dot gnu.org changed: What |Removed |Added ---------------------------------------------------------------------------- Last reconfirmed| |2022-05-06 Status|UNCONFIRMED |NEW Ever confirmed|0 |1 --- Comment #1 from anlauf at gcc dot gnu.org --- Confirmed. Intel and NAG reject the testcase, too. In F2018, the mentioned table is: Table 6.2: Adjacent keywords where separating blanks are optional In does neither mention TYPE IS nor CLASS IS. However, CLASSIS (CLASS IS w/o blanks) is properly rejected.