Unfortunately, this is not as straight forward as it seems it should be. This really comes down to roughly two approaches in my opinion:
NSString *robot= @"Ronnie"; NSString *robotname = [robot stringByAppendingString:@" is the name of a robot."];
NSString *robot= @"Ronnie"; NSString *robotname= @" is the name of the a robot."; NSString *robotknowledge = @" knows eight languages."; [NSString stringWithFormat:@"%@/%@/%@", robot, robotname, robot, robotknowledge];
cocoadevcentral.com, “Learn Objective-C”, http://cocoadevcentral.com/d/learn_objectivec/
There are many different ways to achieve this, but in my opinion the best method for something this commonly used is a solution that does not require additional external dependencies.. However, see reference at the bottom of this post for some other good solutions which are optimized for speed and brevity.
//declare our variables to concatenate std::string name="somename"; int age = 100; std::string result; //if it's for basic console output std::cout << "name:" << name << " age:" << age; //using stringstream std::stringstream ss; ss << "name:" << name << " age:" << age; result = ss.str(); std::cout << result; //using ostringstream std::ostringstream os; os << "name:" << name << " age:" << age; std::cout << os.str(); //using strintf char numstr; // enough to hold all numbers up to 64-bits sprintf(numstr, "%d", age); //convert age to string result = name + numstr; //concatenate
Stackoverflow (forum), http://stackoverflow.com/questions/191757/c-concatenate-string-and-int