confirm that the result of stringstream is integer.

This is a discussion on confirm that the result of stringstream is integer. within the C++ Programming forums, part of the General Programming Boards category; How can i ensure that 1024 is an integer? thank you.... Code: #include <iostream> #include <string> #include <sstream> using namespace ...

  1. #1
    Registered User
    Join Date
    Aug 2010
    Posts
    230

    confirm that the result of stringstream is integer.

    How can i ensure that 1024 is an integer? thank you....

    Code:
    #include <iostream>
    #include <string>
    #include <sstream>
    
    using namespace std;
    
    int main(void){
    	int age;
    	string buf("1024");
    		stringstream(buf) >> age;
    		cout << age << ".\n";
    	
    return 0;
    }

  2. #2
    C++まいる!Cをこわせ!
    Join Date
    Oct 2007
    Posts
    23,012
    Check the state of the stream after the extraction. Typical method:
    Code:
    std::stringstream sstr(buf);
    if (sstr >> age) // Extraction OK
    if (!(sstr >> age)) // Extraction not OK
    Quote Originally Posted by Adak View Post
    io.h certainly IS included in some modern compilers. It is no longer part of the standard for C, but it is nevertheless, included in the very latest Pelles C versions.
    Quote Originally Posted by Salem View Post
    You mean it's included as a crutch to help ancient programmers limp along without them having to relearn too much.

    Outside of your DOS world, your header file is meaningless.

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