Tcl_Alloc() and Tcl_Free() because Tcl_Alloc() uses (unsigned int)
for the argument type and therefore limits memory allocations to
what can fit in 32 bits. Using the system malloc(size_t) should not
cause any issues.
not useful so long as Tcl_Alloc() has (unsigned int) for an argument.
The more important investigation is probably to determine if there is
a way to keep csa2_list from growing to absurdly large sizes on
connectivity checks.
Johan Euphrosine
Tim Edwards