C++ conversion of integers into strings, how

[chandubaba]

how to convert an input of integer(more than 1 character) type into output which is in string in c++

 

[Hurkyl]

(I'm assuming you've acquired an int value that you wish to convert into a char* or a std::string)

Use std::stringstream. Or do it the C-way with sprintf. Or, roll your own method.

 

[ravenprp]

In C++, the standard library provides the `to_string()` function which converts an integer into a string. This function takes the integer as an argument and returns a string representation of the number.

For example, if we have an integer variable `num` with a value of 123, we can convert it to a string by using the `to_string()` function:

```
int num = 123;
string str = to_string(num);
```

The resulting string `str` will now contain the value "123".

If the input integer has more than one character, the `to_string()` function will still work and return a string representation of the number.

Another way to convert an integer into a string is by using the `stringstream` class from the `<sstream>` header. This class allows us to manipulate strings as if they were input/output streams.

We can use the `<<` operator to insert the integer into the `stringstream` and then use the `str()` function to get the string representation of the number.

For example:

```
#include <iostream>
#include <sstream>

using namespace std;

int main(){
int num = 456;
stringstream ss;
ss << num;
string str = ss.str();
cout << str << endl; // output: "456"
return 0;
}
```

In conclusion, there are multiple ways to convert an integer into a string in C++. The `to_string()` function and the `stringstream` class are two commonly used methods for this conversion.