I've obsoleted the function
void mpz_nextprime(mpz_t ROP ,mpz_t OP)
so any code using this function should be converted to use the new function if
you want to remain compatible with further MPIR releases. We will maintain
the old function interface for some time to come to maintain compatibility.
The new function is this
void mpz_next_probable_prime(mpz_t ROP ,mpz_t OP ,gmp_randstate_t STATE)
as you can see we have changed the name to reflect more accurately what the
function does and we now require a random state variable.
So the old mpz_nextprime function can be replaced like this
mpz_nextprime(ROP,OP)
is equivalent to
{
gmp_randstate_t STATE;
gmp_randinit_default(STATE);
mpz_next_probable_prime(ROP,OP,STATE);
gmp_randclear(STATE);
}
This equivalence highlights the other deficiency of the old function , in that
it would always use the same initial random state. To use the new function in
a more robust mathematical manner , the random state should be global.
Jason
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