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Add 'xo-unit/' from commit 'b531e382c2'

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git-subtree-dir: xo-unit
git-subtree-mainline: e9ee6992ca
git-subtree-split: b531e382c2
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Roland Conybeare 2025-05-10 21:29:43 -05:00
commit d1fa15f248
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31
xo-unit/example/ex7/ex7.cpp Normal file
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/** @file ex7.cpp **/
#include "xo/unit/quantity.hpp"
#include "xo/unit/quantity_iostream.hpp"
#include <iostream>
int
main () {
using namespace xo::qty;
namespace u = xo::qty::u;
namespace q = xo::qty::qty;
using namespace std;
quantity qty1 = 7.55 * q::kilometer / q::minute / q::minute;
quantity qty2 = q::nanograms(123);
quantity qty3 = qty2 * qty1;
cerr << "qty1: " << qty1 << endl;
cerr << "qty2: " << qty2 << endl;
cerr << "qty3: " << qty3 << endl;
/* rescale to not-so-absurd units */
/* kg.m.s^-2 */
quantity res = qty3.rescale_ext<u::kilogram * u::meter / (u::second * u::second)>();
/* 2.57958e-10kg.m.s^-2 */
cerr << "res: " << res << endl;
}
/** end ex7.cpp */