ladybird/AK/NumberFormat.h

71 lines
1.9 KiB
C++

/*
* Copyright (c) 2020, the SerenityOS developers.
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/String.h>
namespace AK {
// FIXME: Remove this hackery once printf() supports floats.
static String number_string_with_one_decimal(u64 number, u64 unit, const char* suffix)
{
int decimal = (number % unit) * 10 / unit;
return String::formatted("{}.{} {}", number / unit, decimal, suffix);
}
static inline String human_readable_size(u64 size)
{
if (size < 1 * KiB)
return String::formatted("{} B", size);
if (size < 1 * MiB)
return number_string_with_one_decimal(size, KiB, "KiB");
if (size < 1 * GiB)
return number_string_with_one_decimal(size, MiB, "MiB");
if (size < 1 * TiB)
return number_string_with_one_decimal(size, GiB, "GiB");
if (size < 1 * PiB)
return number_string_with_one_decimal(size, TiB, "TiB");
if (size < 1 * EiB)
return number_string_with_one_decimal(size, PiB, "PiB");
return number_string_with_one_decimal(size, EiB, "EiB");
}
static inline String human_readable_size_long(u64 size)
{
if (size < 1 * KiB)
return String::formatted("{} bytes", size);
else
return String::formatted("{} ({} bytes)", human_readable_size(size), size);
}
static inline String human_readable_time(i64 time_in_seconds)
{
auto hours = time_in_seconds / 3600;
time_in_seconds = time_in_seconds % 3600;
auto minutes = time_in_seconds / 60;
time_in_seconds = time_in_seconds % 60;
StringBuilder builder;
if (hours > 0)
builder.appendff("{} hour{} ", hours, hours == 1 ? "" : "s");
if (minutes > 0)
builder.appendff("{} minute{} ", minutes, minutes == 1 ? "" : "s");
builder.appendff("{} second{}", time_in_seconds, time_in_seconds == 1 ? "" : "s");
return builder.to_string();
}
}
using AK::human_readable_size;
using AK::human_readable_size_long;
using AK::human_readable_time;