On Mar 19, 2012 5:56 AM, "Basile Starynkevitch" wrote: > > On Sun, 18 Mar 2012 20:49:24 +0000 > Jonathan Wakely <jwakely....@gmail.com> wrote: > > > On 18 March 2012 16:56, Basile Starynkevitch wrote: > > > > > > * a garbage collector. Even a modular GCC need some memory management > > > policy (and > > > ref-counting à la GTK, or à la std::shared_ptr is not enough IMHO inside > > > a compiler > > > because a compiler has much more complex and circular data structures, > > > and much less > > > hierarchically organized, that a graphical tookit has). > > > > As has been pointed out to you before, shared_ptr is designed to be > > useful even with circular structures. Please read about weak_ptr. > > > Then why has it not being used before?
I don't understand the question. Are you asking why shared_ptr hasn't been used in GCC before? Surely that's obvious, the GCC code is still written in C and no C++ templates have been introduced to the code yet. Maybe shared_ptr isn't the right tool for memory management in GCC, but if it's rejected then I hope it will be for valid reasons, not because of misinformation about being unsuitable for code with circular references.
