C++ concatenate strings with stream or sprint
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[21]; // 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
Posted on June 3, 2011, in Programming & Development and tagged c#, concatenate, cout, std, str, string, strings, stringstream. Bookmark the permalink. Leave a comment.
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