The compiler does not display an error message when in a source file allocatable arrays are being used without having been allocated beforehand. For example, the following code is erroneous, but nevertheless the compiler will compile (and build) it silently:
real,allocatable:: a(:),b(:) a(1)=2*b(1) end Of course, the executable produced will collapse when run. The gfortran compiler used was the standalone package for Windows (downloaded as a zip archive). -- Summary: allocatable arrays may be used without being allocated Product: gcc Version: 4.0.0 Status: UNCONFIRMED Severity: normal Priority: P2 Component: fortran AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: ebertakis at gmail dot com CC: gcc-bugs at gcc dot gnu dot org http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20520