Mega Code Archive
Make ostringstream work with decimal, hexadecimal value, floating value, bitset
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/* The following code example is taken from the book
* "The C++ Standard Library - A Tutorial and Reference"
* by Nicolai M. Josuttis, Addison-Wesley, 1999
*
* (C) Copyright Nicolai M. Josuttis 1999.
* Permission to copy, use, modify, sell and distribute this software
* is granted provided this copyright notice appears in all copies.
* This software is provided "as is" without express or implied
* warranty, and with no claim as to its suitability for any purpose.
*/
#include <iostream>
#include <sstream>
#include <bitset>
using namespace std;
int main()
{
ostringstream os;
// decimal and hexadecimal value
os << "dec: " << 15 << hex << " hex: " << 15 << endl;
cout << os.str() << endl;
// append floating value and bitset
bitset<15> b(5789);
os << "float: " << 4.67 << " bitset: " << b << endl;
// overwrite with octal value
os.seekp(0);
os << "oct: " << oct << 15;
cout << os.str() << endl;
}
dec: 15 hex: f
oct: 17 hex: f
float: 4.67 bitset: 001011010011101
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