Function return values in GMP?
haberg at math.su.se
Mon Feb 27 07:11:11 CET 2006
On 27 Feb 2006, at 01:12, Décio Luiz Gazzoni Filho wrote:
>> Even when using C++, it is unwise to return values, especially for
>> dynamically allocated variables, due to the time it takes, unless
>> one uses some kind a reference method (like a reference count).
> mpz_t is a pointer type, so that's a non-sequitur. It really comes
> down to the points made in the previous email -- syntactic sugar
> vs. flexibility of memory management.
I mean in the C++ appropriate wrapper, of course. Then you can not
use pointers as a substitute for return values, as new memory
allocations may be needed, and then will require cleanup. Try to
make, for example, a class "integer", with an
integer operator+(const& integer, const& integer);
so see what happens.
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