在函数c ++中从main更改对象

I want to get the values to rsaPrivate key, by calling a function.. because I have to use it other places in the main function, but I can't make it work. I have tried with and without pointer to rsaPrivate in the function.

我想通过调用函数来获取rsaPrivate键的值。因为我必须在main函数中的其他地方使用它,但我不能使它工作。我已尝试在函数中使用和不使用指向rsaPrivate的指针。

int main(int argc, char* argv[]) {
    CryptoPP::RSA::PrivateKey rsaPrivate;
    getKeysFromPfx(&rsaPrivate);
}


void getKeysFromPfx(CryptoPP::RSA::PrivateKey *rsaPrivate) {
    try
    {
        rsaPrivate.BERDecodePrivateKey(queue, false /*paramsPresent*/, queue.MaxRetrievable());

        // BERDecodePrivateKey is a void function. Here's the only check
        // we have regarding the DER bytes consumed.
        assert(queue.IsEmpty());

        bool valid = *rsaPrivate.Validate(prng, 3);
        if (!valid)
        std::cerr << "RSA private key is not valid" << std::endl;
    catch (const Exception& ex)
    {
        std::cerr << ex.what() << std::endl;
        exit(1);
    }

}

the error is in the function where it says for rsaPrivate

错误发生在它为rsaPrivate所说的函数中

expression must have class type

表达式必须具有类类型

1 个解决方案

#1

By the comments of this question, here is the solution.

通过这个问题的评论,这是解决方案。

Removing * from rsaPrivate and changing . to -> when calling a function to rsaPrivate.

从rsaPrivate中删除*并进行更改。 to - >调用rsaPrivate函数时。

#1