-The error: A segfault, according to "insight" at one point the 'this' pointer refers to 0x0.
-What should it do: Definately not segfault, instead, after writing: No such edge as (NOSUCH):true It should write: (according to supplied source) There is an edge as(EXISTS):true But instead, it segfaults. -The reason why I think this is a bug: Compiled and executed on multiple 32 bit platforms, executes without any problems. -- Summary: 'this' pointer goes null on x86_64-linux-gnu Product: gcc Version: 4.2.3 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c++ AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: nam3l3ss dot bugreportaccount at gmail dot com http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34650