pub unsafe extern "C" fn BN_mod_exp_mont_consttime_x2(
rr1: *mut bignum_st,
a1: *const bignum_st,
p1: *const bignum_st,
m1: *const bignum_st,
in_mont1: *mut bn_mont_ctx_st,
rr2: *mut bignum_st,
a2: *const bignum_st,
p2: *const bignum_st,
m2: *const bignum_st,
in_mont2: *mut bn_mont_ctx_st,
ctx: *mut bignum_ctx,
) -> i32