ladybird/AK/NumberFormat.h
David Isaksson 17c0349d23 AK: Add longer human readable size to string helper function
Wraps the existing AK::human_readable_size function but will always
display the bytes in the base unit as well as the shorter string with
one decimal. E.g. "14 KiB (14396 bytes)".
2021-03-25 10:59:11 +01:00

69 lines
2.6 KiB
C++

/*
* Copyright (c) 2020, The SerenityOS developers.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
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*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#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);
}
}
using AK::human_readable_size;
using AK::human_readable_size_long;