Using an ostringstream object. - C++ STL

C++ examples for STL:string

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Description

Using an ostringstream object.

Demo Code

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

int main(int argc, const char* argv[]) {
    std::ostringstream outputString;/* www .  j  a  v a  2 s  .  co  m*/

    std::string string1("Output of several data types ");
    std::string string2("to an ostringstream object:");
    std::string string3("\n        double: ");
    std::string string4("\n           int: ");
    std::string string5("\naddress of int: ");

    double double1 = 123.4567;
    int integer = 22;

    // output strings, double and int to ostringstream outputString
    outputString << string1 << string2 << string3 << double1 << string4
                 << integer << string5 << &integer;

    // call str to obtain string contents of the ostringstream
    std::cout << "outputString contains:\n" << outputString.str();

    // add additional characters and call str to output string
    outputString << "\nmore characters added";

    std::cout << "\n\nafter additional stream insertions,\n"
              << "outputString contains:\n"
              << outputString.str() << std::endl;

    return 0;
}

Result


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