int64.H

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-------------------------------------------------------------------------------
    Copyright (C) 2014-2016 OpenFOAM Foundation
    Copyright (C) 2016-2021 OpenCFD Ltd.
-------------------------------------------------------------------------------
License
    This file is part of OpenFOAM.
 
    OpenFOAM is free software: you can redistribute it and/or modify it
    under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.
 
    OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
    for more details.
 
    You should have received a copy of the GNU General Public License
    along with OpenFOAM.  If not, see <http://www.gnu.org/licenses/>.
 
Primitive
    int64_t
 
Description
    64bit signed integer
 
SourceFiles
    int64.C
    int64IO.C
 
\*---------------------------------------------------------------------------*/
 
#ifndef Foam_primitives_int64_H
#define Foam_primitives_int64_H
 
#include <cstdint>
#include <climits>
#include <cstdlib>
 
#include "direction.H"
#include "pTraits.H"
#include "word.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
//- A word representation of int64 value
inline word name(const int64_t val)
{
    return word(std::to_string(val), false); // Needs no stripping
}
 
 
//- A word representation of int64 value
template<>
struct nameOp<int64_t>
{
    word operator()(const int64_t val) const
    {
        return word(std::to_string(val), false); // Needs no stripping
    }
};
 
 
inline int64_t mag(const int64_t val)
{
    return ::labs(val);
}
 
 
// * * * * * * * * * * * * * * * IOstream Operators  * * * * * * * * * * * * //
 
//- Read int64_t from stream
int64_t readInt64(Istream& is);
 
//- Parse entire buffer as a int64_t, skipping leading/trailing whitespace.
//  \return Parsed value or FatalIOError on any problem
int64_t readInt64(const char* buf);
 
//- Parse entire string as a int64_t, skipping leading/trailing whitespace.
//  \return Parsed value or FatalIOError on any problem
inline int64_t readInt64(const std::string& str)
{
    return readInt64(str.c_str());
}
 
//- Read entire buffer as a int64_t, skipping leading/trailing whitespace.
//  \return True if successful.
bool readInt64(const char* buf, int64_t& val);
 
//- Read entire string as a int64_t, skipping leading/trailing whitespace.
//  \return True if successful.
inline bool readInt64(const std::string& str, int64_t& val)
{
    return readInt64(str.c_str(), val);
}
 
//- Same as readInt64
//  \return True if successful.
inline bool read(const char* buf, int64_t& val)
{
    return readInt64(buf, val);
}
 
//- Same as readInt64
//  \return True if successful.
inline bool read(const std::string& str, int64_t& val)
{
    return readInt64(str, val);
}
 
 
Istream& operator>>(Istream& is, int64_t& val);
Ostream& operator<<(Ostream& os, const int64_t val);
 
// On Darwin:
// long is not unambiguously (int32_t | int64_t)
// - explicitly resolve for input and output
#ifdef __APPLE__
    Istream& operator>>(Istream& is, long& val);
    Ostream& operator<<(Ostream& os, const long val);
#endif
 
 
/*---------------------------------------------------------------------------*\
                        Specialization pTraits<int64_t>
\*---------------------------------------------------------------------------*/
 
//- Template specialization for pTraits<int64_t>
template<>
class pTraits<int64_t>
{
    int64_t p_;
 
public:
 
    // Typedefs
 
        //- Component type
        typedef int64_t cmptType;
 
        //- Magnitude type
        typedef int64_t magType;
 
 
    // Member Constants
 
        //- Dimensionality of space
        static constexpr direction dim = 3;
 
        //- Rank of int64_t is 0
        static constexpr direction rank = 0;
 
        //- Number of components in int64_t is 1
        static constexpr direction nComponents = 1;
 
 
    // Limits
 
        static constexpr int64_t min_ = INT64_MIN;
        static constexpr int64_t max_ = INT64_MAX;
 
 
    // Static Data Members
 
        static const char* const typeName;
        static const char* const componentNames[];
        static const int64_t zero;
        static const int64_t one;
        static const int64_t min;
        static const int64_t max;
        static const int64_t rootMax;
        static const int64_t rootMin;
 
 
    // Constructors
 
        //- Copy construct from primitive
        explicit pTraits(int64_t val) noexcept : p_(val) {}
 
        //- Read construct from Istream
        explicit pTraits(Istream& is);
 
 
    // Member Functions
 
        //- Return the value
        operator int64_t() const noexcept { return p_; }
 
        //- Access the value
        operator int64_t&() noexcept { return p_; }
};
 
 
#ifdef __APPLE__
//- On Darwin: long is not unambiguously (int64_t)
template<> class pTraits<long> : pTraits<int64_t> {};
#endif
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //