display vector without looping it

[metulburr]

I was looking to make a way to view the contents of a vector without looping the vector? Kind of like in Python, you can just print the list and display its contents without looping it.

I know i can just print the elements in the split function but i wanted to make the split function just return the vector

#include <iostream>
#include <string>
#include <sstream>
#include <vector>
using namespace std ;

vector<string> split(string s, char splitter){
    vector<string> temp;
    istringstream iss(s);
    string s2;
    while ( getline( iss, s2, splitter ) ) {
        temp.push_back(s2.c_str());
    }
    return temp;
}


int main(){
    string s = "test this now meich";
    vector<string> v;
    v = split(s, ' ');
    
    for (int i=0; i<v.size(); i++){
        cout << v[i] << endl;
    }
}

[Zhuge]

No, there is no standard way to do what you are asking. However you could write your own function to do this or overload the stream operator to work for vectors.

[ResidentBiscuit]

Either way you have to iterate through the vector. You could either do as Zhuge said and overload the stream operator, or just write a print method that does this.

[metulburr]

well i guess i could just make a function to just loop it and print it as a test function to show me what is in it. Which the purpose is to save me the time of rewriting the loop for every vector self test. I was jsut hoping there would be a builtin or library that would do this instead of creating your own.

#include <iostream>
#include <string>
#include <sstream>
#include <vector>
using namespace std ;

vector<string> split(string s, char splitter='\n'){
    vector<string> temp;
    istringstream iss(s);
    string s2;
    while ( getline( iss, s2, splitter ) ) {
        temp.push_back(s2.c_str());
    }
    return temp;
}

string vector_content(vector<string> v){
    string s;
    s += '[';
    for (int i=0; i<v.size(); i++){
        s += "\"";
        s += v[i] ;
        s += "\"";
        if (v[i] != v.back())
            s += " ,";
    }
    s += ']';
    return s;
}


int main(){
    string s = "some:random text for split method tester";
    vector<string> v;
    cout << vector_content(split(s, ' ')) << endl;
    cout << vector_content(split(s, ':')) << endl;

}

and the python-like:

metulburr@ubuntu:~$ python3
Python 3.3.1 (default, Apr 17 2013, 22:30:32) 
[GCC 4.7.3] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> s = "some : random text for split method tester"
>>> s.split()
['some', ':', 'random', 'text', 'for', 'split', 'method', 'tester']
>>> s.split(':')
['some ', ' random text for split method tester']
>>>