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/****************************************************************************
**
** Copyright (C) 2021 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the QtCore module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:COMM$
**
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** $QT_END_LICENSE$
**
**
**
**
**
**
**
**
**
**
**
**
**
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**
**
**
****************************************************************************/
#ifndef QTOOLS_P_H
#define QTOOLS_P_H
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists for the convenience
// of other Qt classes. This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//
#include "QtCore/private/qglobal_p.h"
#include <limits.h>
QT_BEGIN_NAMESPACE
namespace QtMiscUtils {
Q_DECL_CONSTEXPR inline char toHexUpper(uint value) noexcept
{
return "0123456789ABCDEF"[value & 0xF];
}
Q_DECL_CONSTEXPR inline char toHexLower(uint value) noexcept
{
return "0123456789abcdef"[value & 0xF];
}
Q_DECL_CONSTEXPR inline int fromHex(uint c) noexcept
{
return ((c >= '0') && (c <= '9')) ? int(c - '0') :
((c >= 'A') && (c <= 'F')) ? int(c - 'A' + 10) :
((c >= 'a') && (c <= 'f')) ? int(c - 'a' + 10) :
/* otherwise */ -1;
}
Q_DECL_CONSTEXPR inline char toOct(uint value) noexcept
{
return '0' + char(value & 0x7);
}
Q_DECL_CONSTEXPR inline int fromOct(uint c) noexcept
{
return ((c >= '0') && (c <= '7')) ? int(c - '0') : -1;
}
}
// We typically need an extra bit for qNextPowerOfTwo when determining the next allocation size.
enum {
MaxAllocSize = INT_MAX
};
struct CalculateGrowingBlockSizeResult {
size_t size;
size_t elementCount;
};
// Implemented in qarraydata.cpp:
size_t Q_CORE_EXPORT Q_DECL_CONST_FUNCTION
qCalculateBlockSize(size_t elementCount, size_t elementSize, size_t headerSize = 0) noexcept;
CalculateGrowingBlockSizeResult Q_CORE_EXPORT Q_DECL_CONST_FUNCTION
qCalculateGrowingBlockSize(size_t elementCount, size_t elementSize, size_t headerSize = 0) noexcept ;
QT_END_NAMESPACE
#endif // QTOOLS_P_H
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