I'm trying to learn to use namespaces declarations more definitive than not just say "using namespace std". I'm trying to format my data to 2 decimal places, and set the format to be fixed and not scientific. This is my main file: #include <iostream> #include <iomanip> #include "SavingsAccount.h" using std::cout; using std::setprecis...
Hi all, I'm doing some calculations, and the results are being save in a file. I have to output very precise results, near the precision of the double variable, and I'm using the iomanip setprecision(int) for that. The problem is that I have to put the setprecision everywhere in the output, like that: func1() { cout<<setprecision(12)<<...
If I wanted to output a fixed width hex number with 4 digits on a stream, I would need to do something like this: cout << "0x" << hex << setw(4) << setfill('0') << 0xABC; which seems a bit long winded. Using a macro helps: #define HEX(n) "0x" << hex << setw(n) << setfill('0') cout << HEX(4) << 0xABC; Is there a better way to comb...
How can I cut off the leading digits of a number in order to only display the last two digits, without using the library. For example: 1923 to 23 2001 to 01 1234 to 34 123 to 23 with only #include <iomanip> #include <iostream> Thanks! ...