Why ios::hex and ios::oct Does not Work in C++

Someone might think ios:ct and ios::hex doesn't work in Linux for some unknown reason. The thing is that I have got to know why it's happening. Actually there is no problem, the thing is by default ios::dec turned on in C++. So we have to turn it off by typing cout.unsetf(ios::dec); before our cout statement or cout<<hex<<21323<<endl;.


Eg:-1.


#include<iostream>

#include<iomanip>

using namespace std;

int main()

{

cout.unsetf(ios::dec); //Turn off decimal mode

cout<<setiosflags(ios::hex)<<12323<<endl; //Hex mode is turned on from now on

return 0;

}


Eg:-2.


#include<iostream>

using namespace std;

int main()

{

cout<<hex<<12323<<endl;/*This is easy because we do not have to type cout.unsetf(ios::dec).This thing automatically turns off ios::dec.*/

return 0;

}


Eg:-3.


#include<iostream>

#include<iomanip>

using namespace std;

int main()

{

cout.unsetf(ios::dec);

cout<<setiosflags(ios::hex)<<setw(5)<<12323<<endl;

return 0;

}



I learned this thing from http://www.learncpp.com/cpp-tutorial...tream-and-ios/