iomanip – Tarik Billa

Decimal points with std::stringstream?

August 30, 2023 by Tarik

I think that your problem is that precision() sets the precision used in future stream insertion operations, not when generating the final string to present. That is, by writing ta << a; tb << b; tc << c; ta.precision(2); tb.precision(2); tc.precision(2); You’re setting precision too late, as the first three lines have already converted the … Read more

How can I print 0x0a instead of 0xa using cout?

February 9, 2023 by Tarik

This works for me in GCC: #include <iostream> #include <iomanip> using namespace std; int main() { cout << “0x” << setfill(‘0′) << setw(2) << right << hex << 10 << endl; } If you are getting sick and tired of iostream’s formatting quirkiness, give Boost.Format a try. It allows good-old-fashioned, printf-style format specifiers, yet it … Read more