Re: [Boost-users] generic vector

Subject: Re: [Boost-users] generic vector
From: Joren Heit (jorenheit_at_[hidden])
Date: 2015-02-17 04:13:48

C++11 offers non-restricted unions, which you can wrap in a class:

class Wrapper
{
    union
    {
        int64_t x1; // use better names than these...
        uint64_t x2;
        double x3;
        std::string x4;
    } m_u;

public:
    explicit Wrapper(int64_t x1)
    {
        m_u.x1 = x1;
    }

    // etc....
    // You'll also need some clever getters
};
On Feb 17, 2015 6:00 AM, "Ben Pope" <benpope81_at_[hidden]> wrote:

> On Tuesday, February 17, 2015 12:34 PM, U.Mutlu wrote:
>
>> Hi,
>> I need to have a std::vector in my program, but it's type
>> will be known only when it runs, ie. the type will be provided
>> via a program param. The possible types are limited to these: int64_t,
>> uint64_t, double, std::string.
>> Is there a solution in boost or C++11 for this kind of problem?
>>
>
> Perhaps:
> std::vector<boost::variant<int64_t, uint64_t, double, std::string>>
>
> http://www.boost.org/doc/libs/1_57_0/doc/html/variant.html
>
> Ben
>
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