Luna/luna/Units.cpp

#include <Format.h>
#include <Units.h>

Result<usize> to_dynamic_unit(usize value, char* buffer, size_t max)
{
    if (value < 1024) { return string_format(buffer, max, "%u bytes", value); }

    const char* unit_prefixes = "KMGTPE";
    while (value > (1024 * 1024))
    {
        value /= 1024;
        unit_prefixes++;
    }

    return string_format(buffer, max, "%u.%u %ciB", value / 1024, (value % 1024) / 103, *unit_prefixes);
}