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40 lines
1.1 KiB
C++
40 lines
1.1 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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/* Helpers for units on integer literals. */
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#ifndef mozilla_Literals_h
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#define mozilla_Literals_h
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#include <cstddef>
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// User-defined literals to make constants more legible. Use them by
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// appending them to literals such as:
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//
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// size_t page_size = 4_KiB;
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//
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constexpr size_t operator"" _KiB(unsigned long long int aNum) {
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return size_t(aNum) * 1024;
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}
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constexpr size_t operator"" _KiB(long double aNum) {
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return size_t(aNum * 1024);
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}
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constexpr size_t operator"" _MiB(unsigned long long int aNum) {
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return size_t(aNum) * 1024_KiB;
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}
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constexpr size_t operator"" _MiB(long double aNum) {
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return size_t(aNum * 1024_KiB);
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}
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constexpr double operator""_percent(long double aPercent) {
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return double(aPercent) / 100;
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}
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#endif /* ! mozilla_Literals_h */
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