Thread: Concatenation in C++

Hello,

I want to convert this java statement to C++:

String a;
int b=1;
double c=2.32;
String d="abc";

a=b + c + d;

Thank you very much!

Thank you very much.
Can sprintf support string?

May I change to:

string a= "These numbers to follow";
int b=1;
double c=2.32;
string d;

sprintf(d,"%s%i%f",a,b,c);
cout << d;

ANSI C++ has a string data type ready to use. Besides, we also have string streams, that would fit exactly what you want to do. Here is a sample:

Code:

#include <iostream>
#include <string>
#include <sstream>

using namespace std;

int main()
{
	char a[] = "These numbers to follow"; 
	int b=1; 
	double c=2.32; 
	char d[255]; 
	ostringstream oss;

	oss << a << b << c;
	cout << oss.str() << endl;
	
	// Optionally ...
	string e = oss.str();
	// Play with string e here before printing out
	cout << e << endl;
}

Rayon