mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-10-31 14:15:30 +00:00
41 lines
1.1 KiB
C++
41 lines
1.1 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
|
|
/* This Source Code Form is subject to the terms of the Mozilla Public
|
|
* License, v. 2.0. If a copy of the MPL was not distributed with this
|
|
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
|
|
|
|
/* Compatibility with std::numeric_limits<char16_t>. */
|
|
|
|
#ifndef mozilla_NumericLimits_h
|
|
#define mozilla_NumericLimits_h
|
|
|
|
#include "mozilla/Char16.h"
|
|
|
|
#include <limits>
|
|
#include <stdint.h>
|
|
|
|
namespace mozilla {
|
|
|
|
/**
|
|
* The NumericLimits class provides a compatibility layer with
|
|
* std::numeric_limits for char16_t, otherwise it is exactly the same as
|
|
* std::numeric_limits. Code which does not need std::numeric_limits<char16_t>
|
|
* should avoid using NumericLimits.
|
|
*/
|
|
template<typename T>
|
|
class NumericLimits : public std::numeric_limits<T>
|
|
{
|
|
};
|
|
|
|
#ifdef MOZ_CHAR16_IS_NOT_WCHAR
|
|
template<>
|
|
class NumericLimits<char16_t> : public std::numeric_limits<uint16_t>
|
|
{
|
|
// char16_t and uint16_t numeric limits should be exactly the same.
|
|
};
|
|
#endif
|
|
|
|
} // namespace mozilla
|
|
|
|
#endif /* mozilla_NumericLimits_h */
|