Jump to content
  • Advertisement
Sign in to follow this  
Cornstalks

Is it Possible to Return a Variables Type?[resolved]

This topic is 4583 days old which is more than the 365 day threshold we allow for new replies. Please post a new topic.

If you intended to correct an error in the post then please contact us.

Recommended Posts

Well, I was hoping I wouldn't have to ask, but I do. I want to be able to return the type that a variable is, kinda confusing, so I'll show you what I mean.
typedef struct {
   int x;
   bool y;
} i;

typedef struct {
   float x;
   double y;
} f;

template <class T> 
class tempclass
{
    public:
        T a;
        T b; //For variable b, I want it to be whatever type the y section is for the typedefs
             //So if it was templcass<i>, I'd want it to be bool b.  But if it was tempclass<f>
             //I'd want it to be double b.
} ;
If you know of anyway to do this, I'd appreciate knowing. Thanks, --Michael [Edited by - MikeTacular on December 29, 2005 12:57:27 AM]

Share this post


Link to post
Share on other sites
Advertisement
You're probably looking for something like this:

struct i {
int x;
typedef bool Type;
Type y;
};

struct f {
float x;
typedef double Type;
Type y;
};

template<class T>
struct tempclass {
T a;
typename T::Type b;
};


Also, typedef struct isn't really needed in C++.

Share this post


Link to post
Share on other sites
Hey thanks a ton. It works perfect now. Also, I never could get it to work without doing typedef struct, but from looking at your code, I just kept forgetting to delcare its name. Thanks.

Share this post


Link to post
Share on other sites
Sign in to follow this  

  • Advertisement
×

Important Information

By using GameDev.net, you agree to our community Guidelines, Terms of Use, and Privacy Policy.

We are the game development community.

Whether you are an indie, hobbyist, AAA developer, or just trying to learn, GameDev.net is the place for you to learn, share, and connect with the games industry. Learn more About Us or sign up!

Sign me up!