Split off of PR 34230. Compile the following with -fno-range-check:
module except real, parameter :: inf = 1./0., nan = 0./0. end module program a use except print *, inf, nan end program a This prints: 0.0000000 0.0000000 The .mod shows: (CONSTANT (REAL 4 0 0 REAL ()) 0 '[EMAIL PROTECTED]@@47231941137967') and ^^^^^^^^ (CONSTANT (REAL 4 0 0 REAL ()) 0 '[EMAIL PROTECTED]@@47231941137967') ^^^^^^^^ -- Summary: Modules: Infinity/NaN parameters read as 0.0 Product: gcc Version: 4.3.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: fortran AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: burnus at gcc dot gnu dot org http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34318