///////////////////////////////////////////////////////////////////////////// // Name: wx/longlong.h // Purpose: declaration of wxLongLong class - best implementation of a 64 // bit integer for the current platform. // Author: Jeffrey C. Ollie , Vadim Zeitlin // Remarks: this class is not public in wxWindows 2.0! It is intentionally // not documented and is for private use only. // Modified by: // Created: 10.02.99 // RCS-ID: $Id$ // Copyright: (c) 1998 Vadim Zeitlin // Licence: wxWindows license ///////////////////////////////////////////////////////////////////////////// #ifndef _WX_LONGLONG_H #define _WX_LONGLONG_H #ifdef __GNUG__ #pragma interface "longlong.h" #endif #include "wx/defs.h" #include "wx/wxchar.h" #include "wx/debug.h" #include // for LONG_MAX // define this to compile wxLongLongWx in "test" mode: the results of all // calculations will be compared with the real results taken from // wxLongLongNative -- this is extremely useful to find the bugs in // wxLongLongWx class! //#define wxLONGLONG_TEST_MODE #ifdef wxLONGLONG_TEST_MODE #define wxUSE_LONGLONG_WX 1 #define wxUSE_LONGLONG_NATIVE 1 #endif // wxLONGLONG_TEST_MODE // ---------------------------------------------------------------------------- // decide upon which class we will use // ---------------------------------------------------------------------------- // to avoid compilation problems on 64bit machines with ambiguous method calls // we will need to define this #undef wxLongLongIsLong // NB: we #define and not typedef wxLongLong_t because we want to be able to // use 'unsigned wxLongLong_t' as well and because we use "#ifdef // wxLongLong_t" below #if defined(SIZEOF_LONG) && (SIZEOF_LONG == 8) #define wxLongLong_t long #define wxLongLongIsLong #elif (defined(__VISUALC__) && defined(__WIN32__)) || defined( __VMS__ ) #define wxLongLong_t __int64 #elif defined(__BORLANDC__) && (__BORLANDC__ >= 0x530) #define wxLongLong_t __int64 #elif defined(__GNUG__) #define wxLongLong_t long long #elif defined(__MWERKS__) #if __option(longlong) #define wxLongLong_t long long #else #error "The 64 bit integer support in CodeWarrior has been disabled." #error "See the documentation on the 'longlong' pragma." #endif #elif defined(__VISAGECPP__) && __IBMCPP__ >= 400 #define wxLongLong_t long long #else // no native long long type // both warning and pragma warning are not portable, but at least an // unknown pragma should never be an error. // Err, actually, Watcom C++ doesn't like it. // (well, if the compilers are _that_ broken, I'm removing it (VZ)) #if 0 //ndef __WATCOMC__ #pragma warning "Your compiler does not appear to support 64 bit "\ "integers, using emulation class instead." #endif #define wxUSE_LONGLONG_WX 1 #endif // compiler // the user may predefine wxUSE_LONGLONG_NATIVE and/or wxUSE_LONGLONG_NATIVE // to disable automatic testing (useful for the test program which defines // both classes) but by default we only use one class #if (defined(wxUSE_LONGLONG_WX) && wxUSE_LONGLONG_WX) || !defined(wxLongLong_t) // don't use both classes unless wxUSE_LONGLONG_NATIVE was explicitly set: // this is useful in test programs nad only there #ifndef wxUSE_LONGLONG_NATIVE #define wxUSE_LONGLONG_NATIVE 0 #endif class WXDLLEXPORT wxLongLongWx; typedef wxLongLongWx wxLongLong; #else // if nothing is defined, use native implementation by default, of course #ifndef wxUSE_LONGLONG_NATIVE #define wxUSE_LONGLONG_NATIVE 1 #endif #endif #ifndef wxUSE_LONGLONG_WX #define wxUSE_LONGLONG_WX 0 class WXDLLEXPORT wxLongLongNative; typedef wxLongLongNative wxLongLong; #endif // NB: if both wxUSE_LONGLONG_WX and NATIVE are defined, the user code should // typedef wxLongLong as it wants, we don't do it // ---------------------------------------------------------------------------- // choose the appropriate class // ---------------------------------------------------------------------------- // we use iostream for wxLongLong output #include "wx/ioswrap.h" #if wxUSE_LONGLONG_NATIVE class WXDLLEXPORT wxLongLongNative { public: // ctors // default ctor initializes to 0 wxLongLongNative() { m_ll = 0; } // from long long wxLongLongNative(wxLongLong_t ll) { m_ll = ll; } // from 2 longs wxLongLongNative(long hi, unsigned long lo) { // assign first to avoid precision loss! m_ll = ((wxLongLong_t) hi) << 32; m_ll |= (wxLongLong_t) lo; } // default copy ctor is ok // no dtor // assignment operators // from native 64 bit integer wxLongLongNative& operator=(wxLongLong_t ll) { m_ll = ll; return *this; } // from double: this one has an explicit name because otherwise we // would have ambiguity with "ll = int" and also because we don't want // to have implicit conversions between doubles and wxLongLongs wxLongLongNative& Assign(double d) { m_ll = (wxLongLong_t)d; return *this; } // assignment operators from wxLongLongNative is ok // accessors // get high part long GetHi() const { return (long)(m_ll >> 32); } // get low part unsigned long GetLo() const { return (unsigned long)m_ll; } // get absolute value wxLongLongNative Abs() const { return wxLongLongNative(*this).Abs(); } wxLongLongNative& Abs() { if ( m_ll < 0 ) m_ll = -m_ll; return *this; } // convert to native long long wxLongLong_t GetValue() const { return m_ll; } // convert to long with range checking in the debug mode (only!) long ToLong() const { wxASSERT_MSG( (m_ll >= LONG_MIN) && (m_ll <= LONG_MAX), _T("wxLongLong to long conversion loss of precision") ); return (long)m_ll; } // don't provide implicit conversion to wxLongLong_t or we will have an // ambiguity for all arithmetic operations //operator wxLongLong_t() const { return m_ll; } // operations // addition wxLongLongNative operator+(const wxLongLongNative& ll) const { return wxLongLongNative(m_ll + ll.m_ll); } wxLongLongNative& operator+=(const wxLongLongNative& ll) { m_ll += ll.m_ll; return *this; } wxLongLongNative operator+(const wxLongLong_t ll) const { return wxLongLongNative(m_ll + ll); } wxLongLongNative& operator+=(const wxLongLong_t ll) { m_ll += ll; return *this; } // pre increment wxLongLongNative& operator++() { m_ll++; return *this; } // post increment wxLongLongNative& operator++(int) { m_ll++; return *this; } // negation operator wxLongLongNative operator-() const { return wxLongLongNative(-m_ll); } // subtraction wxLongLongNative operator-(const wxLongLongNative& ll) const { return wxLongLongNative(m_ll - ll.m_ll); } wxLongLongNative& operator-=(const wxLongLongNative& ll) { m_ll -= ll.m_ll; return *this; } wxLongLongNative operator-(const wxLongLong_t ll) const { return wxLongLongNative(m_ll - ll); } wxLongLongNative& operator-=(const wxLongLong_t ll) { m_ll -= ll; return *this; } // pre decrement wxLongLongNative& operator--() { m_ll--; return *this; } // post decrement wxLongLongNative& operator--(int) { m_ll--; return *this; } // shifts // left shift wxLongLongNative operator<<(int shift) const { return wxLongLongNative(m_ll << shift);; } wxLongLongNative& operator<<=(int shift) { m_ll <<= shift; return *this; } // right shift wxLongLongNative operator>>(int shift) const { return wxLongLongNative(m_ll >> shift);; } wxLongLongNative& operator>>=(int shift) { m_ll >>= shift; return *this; } // bitwise operators wxLongLongNative operator&(const wxLongLongNative& ll) const { return wxLongLongNative(m_ll & ll.m_ll); } wxLongLongNative& operator&=(const wxLongLongNative& ll) { m_ll &= ll.m_ll; return *this; } wxLongLongNative operator|(const wxLongLongNative& ll) const { return wxLongLongNative(m_ll | ll.m_ll); } wxLongLongNative& operator|=(const wxLongLongNative& ll) { m_ll |= ll.m_ll; return *this; } wxLongLongNative operator^(const wxLongLongNative& ll) const { return wxLongLongNative(m_ll ^ ll.m_ll); } wxLongLongNative& operator^=(const wxLongLongNative& ll) { m_ll ^= ll.m_ll; return *this; } // multiplication/division wxLongLongNative operator*(const wxLongLongNative& ll) const { return wxLongLongNative(m_ll * ll.m_ll); } wxLongLongNative operator*(long l) const { return wxLongLongNative(m_ll * l); } wxLongLongNative& operator*=(const wxLongLongNative& ll) { m_ll *= ll.m_ll; return *this; } wxLongLongNative& operator*=(long l) { m_ll *= l; return *this; } wxLongLongNative operator/(const wxLongLongNative& ll) const { return wxLongLongNative(m_ll / ll.m_ll); } wxLongLongNative operator/(long l) const { return wxLongLongNative(m_ll / l); } wxLongLongNative& operator/=(const wxLongLongNative& ll) { m_ll /= ll.m_ll; return *this; } wxLongLongNative& operator/=(long l) { m_ll /= l; return *this; } wxLongLongNative operator%(const wxLongLongNative& ll) const { return wxLongLongNative(m_ll % ll.m_ll); } wxLongLongNative operator%(long l) const { return wxLongLongNative(m_ll % l); } // comparison bool operator==(const wxLongLongNative& ll) const { return m_ll == ll.m_ll; } bool operator==(long l) const { return m_ll == l; } bool operator!=(const wxLongLongNative& ll) const { return m_ll != ll.m_ll; } bool operator!=(long l) const { return m_ll != l; } bool operator<(const wxLongLongNative& ll) const { return m_ll < ll.m_ll; } bool operator<(long l) const { return m_ll < l; } bool operator>(const wxLongLongNative& ll) const { return m_ll > ll.m_ll; } bool operator>(long l) const { return m_ll > l; } bool operator<=(const wxLongLongNative& ll) const { return m_ll <= ll.m_ll; } bool operator<=(long l) const { return m_ll <= l; } bool operator>=(const wxLongLongNative& ll) const { return m_ll >= ll.m_ll; } bool operator>=(long l) const { return m_ll >= l; } // miscellaneous // conversion to byte array: returns a pointer to static buffer! void *asArray() const; #if wxUSE_STD_IOSTREAM // input/output friend ostream& operator<<(ostream&, const wxLongLongNative&); #endif private: wxLongLong_t m_ll; }; #endif // wxUSE_LONGLONG_NATIVE #if wxUSE_LONGLONG_WX class WXDLLEXPORT wxLongLongWx { public: // ctors // default ctor initializes to 0 wxLongLongWx() { m_lo = m_hi = 0; #ifdef wxLONGLONG_TEST_MODE m_ll = 0; Check(); #endif // wxLONGLONG_TEST_MODE } // from long wxLongLongWx(long l) { *this = l; } // from 2 longs wxLongLongWx(long hi, unsigned long lo) { m_hi = hi; m_lo = lo; #ifdef wxLONGLONG_TEST_MODE m_ll = hi; m_ll <<= 32; m_ll |= lo; Check(); #endif // wxLONGLONG_TEST_MODE } // default copy ctor is ok in both cases // no dtor // assignment operators // from long wxLongLongWx& operator=(long l) { m_lo = l; m_hi = (l < 0 ? -1l : 0l); #ifdef wxLONGLONG_TEST_MODE m_ll = l; Check(); #endif // wxLONGLONG_TEST_MODE return *this; } // from double wxLongLongWx& Assign(double d); // can't have assignment operator from 2 longs // accessors // get high part long GetHi() const { return m_hi; } // get low part unsigned long GetLo() const { return m_lo; } // get absolute value wxLongLongWx Abs() const { return wxLongLongWx(*this).Abs(); } wxLongLongWx& Abs() { if ( m_hi < 0 ) m_hi = -m_hi; #ifdef wxLONGLONG_TEST_MODE if ( m_ll < 0 ) m_ll = -m_ll; Check(); #endif // wxLONGLONG_TEST_MODE return *this; } // convert to long with range checking in the debug mode (only!) long ToLong() const { wxASSERT_MSG( (m_hi == 0l) || (m_hi == -1l), _T("wxLongLong to long conversion loss of precision") ); return (long)m_lo; } // operations // addition wxLongLongWx operator+(const wxLongLongWx& ll) const; wxLongLongWx& operator+=(const wxLongLongWx& ll); wxLongLongWx operator+(long l) const; wxLongLongWx& operator+=(long l); // pre increment operator wxLongLongWx& operator++(); // post increment operator wxLongLongWx& operator++(int) { return ++(*this); } // negation operator wxLongLongWx operator-() const; wxLongLongWx& Negate(); // subraction wxLongLongWx operator-(const wxLongLongWx& ll) const; wxLongLongWx& operator-=(const wxLongLongWx& ll); // pre decrement operator wxLongLongWx& operator--(); // post decrement operator wxLongLongWx& operator--(int) { return --(*this); } // shifts // left shift wxLongLongWx operator<<(int shift) const; wxLongLongWx& operator<<=(int shift); // right shift wxLongLongWx operator>>(int shift) const; wxLongLongWx& operator>>=(int shift); // bitwise operators wxLongLongWx operator&(const wxLongLongWx& ll) const; wxLongLongWx& operator&=(const wxLongLongWx& ll); wxLongLongWx operator|(const wxLongLongWx& ll) const; wxLongLongWx& operator|=(const wxLongLongWx& ll); wxLongLongWx operator^(const wxLongLongWx& ll) const; wxLongLongWx& operator^=(const wxLongLongWx& ll); wxLongLongWx operator~() const; // comparison bool operator==(const wxLongLongWx& ll) const { return m_lo == ll.m_lo && m_hi == ll.m_hi; } bool operator!=(const wxLongLongWx& ll) const { return !(*this == ll); } bool operator<(const wxLongLongWx& ll) const; bool operator>(const wxLongLongWx& ll) const; bool operator<=(const wxLongLongWx& ll) const { return *this < ll || *this == ll; } bool operator>=(const wxLongLongWx& ll) const { return *this > ll || *this == ll; } // multiplication wxLongLongWx operator*(const wxLongLongWx& ll) const; wxLongLongWx& operator*=(const wxLongLongWx& ll); // division wxLongLongWx operator/(const wxLongLongWx& ll) const; wxLongLongWx& operator/=(const wxLongLongWx& ll); wxLongLongWx operator%(const wxLongLongWx& ll) const; void Divide(const wxLongLongWx& divisor, wxLongLongWx& quotient, wxLongLongWx& remainder) const; // input/output #if wxUSE_STD_IOSTREAM friend ostream& operator<<(ostream&, const wxLongLongWx&); #endif // wxUSE_STD_IOSTREAM void *asArray() const; private: // long is at least 32 bits, so represent our 64bit number as 2 longs long m_hi; // signed bit is in the high part unsigned long m_lo; #ifdef wxLONGLONG_TEST_MODE void Check() { wxASSERT( (m_ll >> 32) == m_hi && (unsigned long)m_ll == m_lo ); } wxLongLong_t m_ll; #endif // wxLONGLONG_TEST_MODE }; #endif // wxUSE_LONGLONG_WX // ---------------------------------------------------------------------------- // binary operators // ---------------------------------------------------------------------------- inline bool WXDLLEXPORT operator<(long l, const wxLongLong& ll) { return ll > l; } inline bool WXDLLEXPORT operator>(long l, const wxLongLong& ll) { return ll > l; } inline bool WXDLLEXPORT operator<=(long l, const wxLongLong& ll) { return ll > l; } inline bool WXDLLEXPORT operator>=(long l, const wxLongLong& ll) { return ll > l; } inline bool WXDLLEXPORT operator==(long l, const wxLongLong& ll) { return ll > l; } inline bool WXDLLEXPORT operator!=(long l, const wxLongLong& ll) { return ll > l; } inline wxLongLong WXDLLEXPORT operator+(long l, const wxLongLong& ll) { return ll + l; } inline wxLongLong WXDLLEXPORT operator-(long l, const wxLongLong& ll) { return ll - l; } #endif // _WX_LONGLONG_H