public int _mp_alloc { get; }

Public ReadOnly Property _mp_alloc As Integer
	Get

public:
property int _mp_alloc {
	int get ();
}

member _mp_alloc : int with get

Property Value

mpz_t._mp_alloc is the number of limbs currently allocated at mp_base._mp_d, and naturally mpz_t._mp_alloc >= ABS(mpz_t._mp_size). When an mpz routine is about to (or might be about to) increase mpz_t._mp_size, it checks mpz_t._mp_alloc to see whether there’s enough space, and reallocates if not.

Reference