Function nginx::DH_meth_set_bn_mod_exp

pub unsafe extern "C" fn DH_meth_set_bn_mod_exp(
    dhm: *mut DH_METHOD, 
    bn_mod_exp: Option<unsafe extern "C" fn(arg1: *const DH, arg2: *mut BIGNUM, arg3: *const BIGNUM, arg4: *const BIGNUM, arg5: *const BIGNUM, arg6: *mut BN_CTX, arg7: *mut BN_MONT_CTX) -> c_int>
) -> c_int