This is popular with many C++ dev libraries, like boost, for example.There are several advantages with doing that; mainly reducing the risk of clashing with application's own symbols, or even with symbols from other libraries that an app also links to.
I can prepare a patch to do that, if there's interest.Compatibility with existing code is trivial. Either provide a separate file that existing code can include, that contains a grand total of three typedefs:
typedef gnu::mp::mpz_class mpz_class; typedef gnu::mp::mpf_class mpf_class; typedef gnu::mp::mpq_class mpq_class;Or, for 100% source backwards compatibility, rename gmpxx.h to something else, and have it declare everything in gnu::mp, and replace gmpxx.h with a stub that includes the real file, and provides the three typedefs.
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