[SOLVED] C++ static templates

[AggrorJorn]

Hi everyone,

 

One of things that I can't seem to get working is using a static method. I have written a simple Int to string function that I want to be able to call everywhere in the program. I am using a template to let you convert anything to a string.

#include <sstream>
class Convert
{
template <class T>
static inline std::string ToString (const T& t)
{
std::stringstream ss;
ss << t;
return ss.str();
}
}

 

So my question is: How would I achieve this and what are alternatives to using static?

[Josh]

I use a base Object class called "Object" and have a virtual function on the object class called "ToString". Then each derived class can have its own variation.

[Furbolg]

Hey Aggror!

 

1. You forget a closing bracket at the end.

2. All Methods and Variables declared without a specific access space are default in private (opposite to struct where all entires automatically public)

 

So your working class look like this:

 

#include <sstream>
class Convert
{
public:
template <class T>
static inline std::string ToString (const T& t)
{
 std::stringstream ss;
 ss << t;
 return ss.str();
}
};

 

 

Simple Test code from me:

#include <windows.h>
#include <iostream>
#include <stdio.h>
#include "convert.h"
int main(int argc, char** argv)
{
int a = 12345;
float b = 54321.0f;
std::cout << Convert::ToString<int>(a) << std::endl;
std::cout << Convert::ToString<float>(B) << std::endl;
system("pause");
return 0;
}

 

Cheers

[smashthewindow]

But more fundamentally now why are you trying to create "Convert" a class?

Simple namespace would do.

[Roland]

Yepp. Smashthewindow is right. Just make a namespace Convert and place your conversion functions there

 

 

#include <sstream>

namespace Convert

{

template <class T>

inline std::string ToString (const T& t)

{

std::stringstream ss;

ss << t;

return ss.str();

}

}

 

 

#include <iostream>

#include <stdio.h>

#include "convert.h"

int main(int argc, char** argv)

{

int a = 12345;

float b = 54321.0f;

std::cout << Convert::ToString<int>(a) << std::endl;

std::cout << Convert::ToString<float>(B) << std::endl;

system("pause");

return 0;

}

[Furbolg]

Hi again,

 

sorry i was just focusing the error, of course smashthewindow and roland are right.

A namespace makes more sense in this case.

[AggrorJorn]

Thanks for the help everyone. Really helpful!