I tried some of those gdb macros, but they did not work for me. Don't remember the details. In any case, in a recent debugging session, I noticed that gdb elides or loses some essential iterator features. For example, iterator->first and ->second do not show up if I execute the "p" command in gdb. The whole situation led me to claim that, at least in open-source Unixland, the C++ toolchain leaves a great deal to be desired.
