The following invalid code snippet causes an ICE since GCC 4.1.0 (and in GCC 3.3, 3.3.1, 3.3.2):
======================== struct A {}; A a[] = { 0 }; ======================== The compiler loops forever until it runs out of memory: bug.cc:3: error: initializer for 'A' must be brace-enclosed bug.cc:3: error: initializer for 'A' must be brace-enclosed bug.cc:3: error: initializer for 'A' must be brace-enclosed bug.cc:3: error: initializer for 'A' must be brace-enclosed bug.cc:3: error: initializer for 'A' must be brace-enclosed bug.cc:3: error: initializer for 'A' must be brace-enclosed bug.cc:3: error: initializer for 'A' must be brace-enclosed bug.cc:3: error: initializer for 'A' must be brace-enclosed bug.cc:3: error: initializer for 'A' must be brace-enclosed bug.cc:3: error: initializer for 'A' must be brace-enclosed [etc.] -- Summary: [4.1/4.2 regression] ICE with invalid array initializer Product: gcc Version: 4.2.0 Status: UNCONFIRMED Keywords: ice-on-invalid-code, error-recovery, monitored Severity: normal Priority: P3 Component: c++ AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: reichelt at gcc dot gnu dot org http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27385