----- Mensaje original ----- De: Felipe Magno de Almeida <felipe.m.almeida@gmail.com> Fecha: Martes, Junio 27, 2006 11:44 pm Asunto: Re: [boost] [multi_index] Working with a composite key of keys with different sorting criterias

On 6/27/06, JOAQUIN LOPEZ MU?Z <joaquin@tid.es> wrote: [...]

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[I guess you mean "dependent".] Well, sorting by pointer value makes all entries under the same directory (i.e. with the same "dir" pointer) to be kept together. What it's platform dependent is the order in which different directory clusters appear, but the example does not make any assumption about that. Have I explained this sufficiently clear? (I'm not sure I made my point through.)

Yes, clear. But the order shouldnt be something predictable?

No, not really. The only requirement in this direction is that it's stable in the sense that comparison of elements does not change in within the program execution. Different runs can yield different orderings, but this is of no concern to us. Joaquín M López Muñoz Telefónica, Investigación y Desarrollo