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Diffstat (limited to 'shared/int64.h')
| -rw-r--r-- | shared/int64.h | 248 |
1 files changed, 0 insertions, 248 deletions
diff --git a/shared/int64.h b/shared/int64.h deleted file mode 100644 index cfd3e3d1..00000000 --- a/shared/int64.h +++ /dev/null @@ -1,248 +0,0 @@ -// ************************************************************************** -// * This file is part of the FreeFileSync project. It is distributed under * -// * GNU General Public License: http://www.gnu.org/licenses/gpl.html * -// * Copyright (C) 2008-2011 ZenJu (zhnmju123 AT gmx.de) * -// ************************************************************************** - -#ifndef FFS_LARGE_64_BIT_INTEGER_H_INCLUDED -#define FFS_LARGE_64_BIT_INTEGER_H_INCLUDED - -#include <cassert> -#include <ostream> -#include <limits> -#include <boost/cstdint.hpp> -#include <boost/numeric/conversion/bounds.hpp> -#include "assert_static.h" -#include "loki/TypeManip.h" - -#ifdef FFS_WIN -#include <wx/msw/wrapwin.h> -#endif - - -/* -zen::Int64/zen::UInt64: wrapper classes around boost::int64_t/boost::uint64_t - - - default initialization with 0 - - debug runtime overflow/underflow checks - - safe and explicit semantics: no unsafe type conversions - - safe conversion to and from Windows 64-bit integers - - specializes std::numeric_limits - - support stream operator<< and operator>> -*/ - -namespace zen -{ -template <class T, class U> inline void checkRange(U value) -{ - //caveat: std::numeric_limits<T>::min returns minimum positive(!) number for T = double, while behaving correctly for integer types... sigh - //std::numeric_limits<T>::lowest() not available before C++11 - assert(double(boost::numeric::bounds<T>::lowest ()) <= double(value) && - double(boost::numeric::bounds<T>::highest()) >= double(value)); -} - -class Int64 -{ - struct DummyClass { operator int() { return 0; } }; -public: - //safe implicit conversions - Int64() : value(0) {} - Int64(const Int64& rhs) : value(rhs.value) {} - Int64(int rhs) : value(rhs) {} //ambiguity intentional for types other than these - Int64(long rhs) : value(rhs) {} - Int64(Loki::Select<Loki::IsSameType<boost::int64_t, long>::value, DummyClass, boost::int64_t>::Result rhs) : - value(rhs) {} //-> boost::int64_t equals long int on x64 Linux! Still we want implicit behavior for all other systems! - - //unsafe explicit but checked conversion from arbitrary integer type - template <class T> explicit Int64(T rhs) : value(rhs) { checkRange<boost::int64_t>(rhs); } - - Int64& operator=(const Int64& rhs) { value = rhs.value; return *this; } - -#ifdef FFS_WIN - Int64(DWORD low, LONG high) - { - assert_static(sizeof(low) + sizeof(high) == sizeof(value)); - - LARGE_INTEGER cvt = {}; - cvt.LowPart = low; - cvt.HighPart = high; - value = cvt.QuadPart; - } - LONG getHi() const - { - LARGE_INTEGER cvt = {}; - cvt.QuadPart = value; - return cvt.HighPart; - } - DWORD getLo() const - { - LARGE_INTEGER cvt = {}; - cvt.QuadPart = value; - return cvt.LowPart; - } -#endif - - Int64& operator+=(const Int64& rhs) { checkRange<boost::int64_t>(double(value) + rhs.value); value += rhs.value; return *this; } - Int64& operator-=(const Int64& rhs) { checkRange<boost::int64_t>(double(value) - rhs.value); value -= rhs.value; return *this; } - Int64& operator*=(const Int64& rhs) { checkRange<boost::int64_t>(double(value) * rhs.value); value *= rhs.value; return *this; } - Int64& operator/=(const Int64& rhs) { assert(rhs.value != 0); value /= rhs.value; return *this; } - Int64& operator%=(const Int64& rhs) { assert(rhs.value != 0); value %= rhs.value; return *this; } - Int64& operator&=(const Int64& rhs) { value &= rhs.value; return *this;} - Int64& operator|=(const Int64& rhs) { value |= rhs.value; return *this;} - Int64& operator<<=(int rhs) { assert(rhs < 0 || (value << rhs) >> rhs == value); value <<= rhs; return *this; } - Int64& operator>>=(int rhs) { assert(rhs > 0 || (value >> rhs) << rhs == value); value >>= rhs; return *this; } - - inline friend bool operator==(const Int64& lhs, const Int64& rhs) { return lhs.value == rhs.value; } - inline friend bool operator!=(const Int64& lhs, const Int64& rhs) { return lhs.value != rhs.value; } - inline friend bool operator< (const Int64& lhs, const Int64& rhs) { return lhs.value < rhs.value; } - inline friend bool operator> (const Int64& lhs, const Int64& rhs) { return lhs.value > rhs.value; } - inline friend bool operator<=(const Int64& lhs, const Int64& rhs) { return lhs.value <= rhs.value; } - inline friend bool operator>=(const Int64& lhs, const Int64& rhs) { return lhs.value >= rhs.value; } - - //checked conversion to arbitrary target integer type - template <class T> inline friend T to(Int64 number) { checkRange<T>(number.value); return static_cast<T>(number.value); } - - template <class T> inline friend std::basic_istream<T>& operator>>(std::basic_istream<T>& lhs, Int64& rhs) { lhs >> rhs.value; return lhs; } - template <class T> inline friend std::basic_ostream<T>& operator<<(std::basic_ostream<T>& lhs, const Int64& rhs) { lhs << rhs.value; return lhs; } - -private: - boost::int64_t value; -}; - -inline Int64 operator+(const Int64& lhs, const Int64& rhs) { return Int64(lhs) += rhs; } -inline Int64 operator-(const Int64& lhs, const Int64& rhs) { return Int64(lhs) -= rhs; } -inline Int64 operator*(const Int64& lhs, const Int64& rhs) { return Int64(lhs) *= rhs; } -inline Int64 operator/(const Int64& lhs, const Int64& rhs) { return Int64(lhs) /= rhs; } -inline Int64 operator%(const Int64& lhs, const Int64& rhs) { return Int64(lhs) %= rhs; } -inline Int64 operator&(const Int64& lhs, const Int64& rhs) { return Int64(lhs) &= rhs; } -inline Int64 operator|(const Int64& lhs, const Int64& rhs) { return Int64(lhs) |= rhs; } -inline Int64 operator<<(const Int64& lhs, int rhs) { return Int64(lhs) <<= rhs; } -inline Int64 operator>>(const Int64& lhs, int rhs) { return Int64(lhs) >>= rhs; } - - -class UInt64 -{ - struct DummyClass { operator size_t() { return 0U; } }; -public: - //safe implicit conversions - UInt64() : value(0) {} - UInt64(const UInt64& rhs) : value(rhs.value) {} - UInt64(unsigned int rhs) : value(rhs) {} //ambiguity intentional for types other than these - UInt64(unsigned long rhs) : value(rhs) {} - UInt64(Loki::Select<Loki::IsSameType<boost::uint64_t, unsigned long>::value, DummyClass, boost::uint64_t>::Result rhs) : - value(rhs) {} //-> boost::uint64_t equals unsigned long int on x64 Linux! Still we want implicit behavior for all other systems! - - //unsafe explicit but checked conversion from arbitrary integer type - template <class T> explicit UInt64(T rhs) : value(rhs) { checkRange<boost::uint64_t>(rhs); } - - UInt64& operator=(const UInt64& rhs) { value = rhs.value; return *this; } - -#ifdef FFS_WIN - UInt64(DWORD low, DWORD high) - { - assert_static(sizeof(low) + sizeof(high) == sizeof(value)); - - ULARGE_INTEGER cvt = {}; - cvt.LowPart = low; - cvt.HighPart = high; - value = cvt.QuadPart; - } - DWORD getHi() const - { - ULARGE_INTEGER cvt = {}; - cvt.QuadPart = value; - return cvt.HighPart; - } - DWORD getLo() const - { - ULARGE_INTEGER cvt = {}; - cvt.QuadPart = value; - return cvt.LowPart; - } -#endif - - UInt64& operator+=(const UInt64& rhs) { checkRange<boost::uint64_t>(double(value) + rhs.value); value += rhs.value; return *this; } - UInt64& operator-=(const UInt64& rhs) { checkRange<boost::uint64_t>(double(value) - rhs.value); value -= rhs.value; return *this; } - UInt64& operator*=(const UInt64& rhs) { checkRange<boost::uint64_t>(double(value) * rhs.value); value *= rhs.value; return *this; } - UInt64& operator/=(const UInt64& rhs) { assert(rhs.value != 0); value /= rhs.value; return *this; } - UInt64& operator%=(const UInt64& rhs) { assert(rhs.value != 0); value %= rhs.value; return *this; } - UInt64& operator&=(const UInt64& rhs) { value &= rhs.value; return *this;} - UInt64& operator|=(const UInt64& rhs) { value |= rhs.value; return *this;} - UInt64& operator<<=(int rhs) { assert(rhs < 0 || (value << rhs) >> rhs == value); value <<= rhs; return *this; } - UInt64& operator>>=(int rhs) { assert(rhs > 0 || (value >> rhs) << rhs == value); value >>= rhs; return *this; } - - inline friend bool operator==(const UInt64& lhs, const UInt64& rhs) { return lhs.value == rhs.value; } - inline friend bool operator!=(const UInt64& lhs, const UInt64& rhs) { return lhs.value != rhs.value; } - inline friend bool operator< (const UInt64& lhs, const UInt64& rhs) { return lhs.value < rhs.value; } - inline friend bool operator> (const UInt64& lhs, const UInt64& rhs) { return lhs.value > rhs.value; } - inline friend bool operator<=(const UInt64& lhs, const UInt64& rhs) { return lhs.value <= rhs.value; } - inline friend bool operator>=(const UInt64& lhs, const UInt64& rhs) { return lhs.value >= rhs.value; } - - //checked conversion to arbitrary target integer type - template <class T> inline friend T to(UInt64 number) { checkRange<T>(number.value); return static_cast<T>(number.value); } - - template <class T> inline friend std::basic_istream<T>& operator>>(std::basic_istream<T>& lhs, UInt64& rhs) { lhs >> rhs.value; return lhs; } - template <class T> inline friend std::basic_ostream<T>& operator<<(std::basic_ostream<T>& lhs, const UInt64& rhs) { lhs << rhs.value; return lhs; } - -private: - boost::uint64_t value; -}; - -inline UInt64 operator+(const UInt64& lhs, const UInt64& rhs) { return UInt64(lhs) += rhs; } -inline UInt64 operator-(const UInt64& lhs, const UInt64& rhs) { return UInt64(lhs) -= rhs; } -inline UInt64 operator*(const UInt64& lhs, const UInt64& rhs) { return UInt64(lhs) *= rhs; } -inline UInt64 operator/(const UInt64& lhs, const UInt64& rhs) { return UInt64(lhs) /= rhs; } -inline UInt64 operator%(const UInt64& lhs, const UInt64& rhs) { return UInt64(lhs) %= rhs; } -inline UInt64 operator&(const UInt64& lhs, const UInt64& rhs) { return UInt64(lhs) &= rhs; } -inline UInt64 operator|(const UInt64& lhs, const UInt64& rhs) { return UInt64(lhs) |= rhs; } -inline UInt64 operator<<(const UInt64& lhs, int rhs) { return UInt64(lhs) <<= rhs; } -inline UInt64 operator>>(const UInt64& lhs, int rhs) { return UInt64(lhs) >>= rhs; } - -template <> inline UInt64 to(Int64 number) { checkRange<boost::uint64_t>(number.value); return UInt64(number.value); } -template <> inline Int64 to(UInt64 number) { checkRange<boost:: int64_t>(number.value); return Int64(number.value); } - - -#ifdef FFS_WIN -//convert FILETIME (number of 100-nanosecond intervals since January 1, 1601 UTC) -// to time_t (number of seconds since Jan. 1st 1970 UTC) -// -//FAT32 time is preserved exactly: FAT32 -> toTimeT -> tofiletime -> FAT32 -inline -Int64 toTimeT(const FILETIME& ft) -{ - return to<Int64>(UInt64(ft.dwLowDateTime, ft.dwHighDateTime) / 10000000U) - Int64(3054539008UL, 2); - //timeshift between ansi C time and FILETIME in seconds == 11644473600s -} - -inline -FILETIME tofiletime(const Int64& utcTime) -{ - const UInt64 fileTimeLong = to<UInt64>(utcTime + Int64(3054539008UL, 2)) * 10000000U; - const FILETIME output = { fileTimeLong.getLo(), fileTimeLong.getHi() }; - return output; -} -#endif -} - - -namespace std -{ -assert_static(std::numeric_limits<boost:: int64_t>::is_specialized); -assert_static(std::numeric_limits<boost::uint64_t>::is_specialized); - -template <> class numeric_limits<zen::Int64> : public numeric_limits<boost::int64_t> -{ -public: - static zen::Int64 min() throw() { return numeric_limits<boost::int64_t>::min(); } - static zen::Int64 max() throw() { return numeric_limits<boost::int64_t>::max(); } -}; - -template <> class numeric_limits<zen::UInt64> : public numeric_limits<boost::uint64_t> -{ -public: - static zen::UInt64 min() throw() { return numeric_limits<boost::uint64_t>::min(); } - static zen::UInt64 max() throw() { return numeric_limits<boost::uint64_t>::max(); } -}; -} - -#endif //FFS_LARGE_64_BIT_INTEGER_H_INCLUDED |