X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/2a31049201e9c1ff9f515eb9d144ae392f4b4e5a..db06cdc08cee40c72854d6a883cf017c2bcc670e:/src/common/longlong.cpp diff --git a/src/common/longlong.cpp b/src/common/longlong.cpp index 6a0cc8e315..1ceefe0123 100644 --- a/src/common/longlong.cpp +++ b/src/common/longlong.cpp @@ -1,24 +1,20 @@ ///////////////////////////////////////////////////////////////////////////// -// Name: wx/longlong.cpp +// Name: src/common/longlong.cpp // Purpose: implementation of wxLongLongNative // Author: Jeffrey C. Ollie , Vadim Zeitlin -// Remarks: this class is not public in wxWindows 2.0! It is intentionally +// Remarks: this class is not public in wxWidgets 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 +// Licence: wxWindows licence ///////////////////////////////////////////////////////////////////////////// // ============================================================================ // headers // ============================================================================ -#ifdef __GNUG__ - #pragma implementation "longlong.h" -#endif - #include "wx/wxprec.h" #ifdef __BORLANDC__ @@ -26,10 +22,20 @@ #endif #if wxUSE_LONGLONG + #include "wx/longlong.h" -#include // for memset() -#include // for fabs() +#ifndef WX_PRECOMP + #include "wx/math.h" // for fabs() +#endif + +#if wxUSE_STREAMS + #include "wx/txtstrm.h" +#endif + +#include // for memset() + +#include "wx/ioswrap.h" // ============================================================================ // implementation @@ -45,38 +51,103 @@ void *wxLongLongNative::asArray() const { static unsigned char temp[8]; - temp[0] = (m_ll >> 56) & 0xFF; - temp[1] = (m_ll >> 48) & 0xFF; - temp[2] = (m_ll >> 40) & 0xFF; - temp[3] = (m_ll >> 32) & 0xFF; - temp[4] = (m_ll >> 24) & 0xFF; - temp[5] = (m_ll >> 16) & 0xFF; - temp[6] = (m_ll >> 8) & 0xFF; - temp[7] = (m_ll >> 0) & 0xFF; + temp[0] = wx_truncate_cast(unsigned char, ((m_ll >> 56) & 0xFF)); + temp[1] = wx_truncate_cast(unsigned char, ((m_ll >> 48) & 0xFF)); + temp[2] = wx_truncate_cast(unsigned char, ((m_ll >> 40) & 0xFF)); + temp[3] = wx_truncate_cast(unsigned char, ((m_ll >> 32) & 0xFF)); + temp[4] = wx_truncate_cast(unsigned char, ((m_ll >> 24) & 0xFF)); + temp[5] = wx_truncate_cast(unsigned char, ((m_ll >> 16) & 0xFF)); + temp[6] = wx_truncate_cast(unsigned char, ((m_ll >> 8) & 0xFF)); + temp[7] = wx_truncate_cast(unsigned char, ((m_ll >> 0) & 0xFF)); return temp; } -#if wxUSE_STD_IOSTREAM +void *wxULongLongNative::asArray() const +{ + static unsigned char temp[8]; -// input/output -ostream& operator<< (ostream& o, const wxLongLongNative& ll) + temp[0] = wx_truncate_cast(unsigned char, ((m_ll >> 56) & 0xFF)); + temp[1] = wx_truncate_cast(unsigned char, ((m_ll >> 48) & 0xFF)); + temp[2] = wx_truncate_cast(unsigned char, ((m_ll >> 40) & 0xFF)); + temp[3] = wx_truncate_cast(unsigned char, ((m_ll >> 32) & 0xFF)); + temp[4] = wx_truncate_cast(unsigned char, ((m_ll >> 24) & 0xFF)); + temp[5] = wx_truncate_cast(unsigned char, ((m_ll >> 16) & 0xFF)); + temp[6] = wx_truncate_cast(unsigned char, ((m_ll >> 8) & 0xFF)); + temp[7] = wx_truncate_cast(unsigned char, ((m_ll >> 0) & 0xFF)); + + return temp; +} + +#if wxUSE_LONGLONG_WX +wxLongLongNative::wxLongLongNative(wxLongLongWx ll) { - char result[65]; + // assign first to avoid precision loss! + m_ll = ll.GetHi(); + m_ll <<= 32; + m_ll |= ll.GetLo(); +} - memset(result, 'A', 64); +wxLongLongNative& wxLongLongNative::operator=(wxLongLongWx ll) +{ + // assign first to avoid precision loss! + m_ll = ll.GetHi(); + m_ll <<= 32; + m_ll |= ll.GetLo(); + return *this; +} - result[64] = '\0'; +wxLongLongNative& wxLongLongNative::operator=(const class wxULongLongWx &ll) +{ + // assign first to avoid precision loss! + m_ll = ll.GetHi(); + m_ll <<= 32; + m_ll |= ll.GetLo(); + return *this; +} - for (int i = 0; i < 64; i++) - { - result[63 - i] = '0' + (char) ((ll.m_ll >> i) & 1); - } +wxULongLongNative::wxULongLongNative(const class wxULongLongWx &ll) +{ + // assign first to avoid precision loss! + m_ll = ll.GetHi(); + m_ll <<= 32; + m_ll |= ((unsigned long) ll.GetLo()); +} - return o << result; +wxULongLongNative& wxULongLongNative::operator=(wxLongLongWx ll) +{ + // assign first to avoid precision loss! + m_ll = ll.GetHi(); + m_ll <<= 32; + m_ll |= ((unsigned long) ll.GetLo()); + return *this; } -#endif // wxUSE_STD_IOSTREAM +wxULongLongNative& wxULongLongNative::operator=(const class wxULongLongWx &ll) +{ + // assign first to avoid precision loss! + m_ll = ll.GetHi(); + m_ll <<= 32; + m_ll |= ((unsigned long) ll.GetLo()); + return *this; +} +#endif + +#ifdef __VISUALC6__ +double wxULongLongNative::ToDouble() const +{ + // Work around the problem of casting unsigned __int64 to double in VC6 + // (which for unknown reasons only manifests itself in DLL builds, i.e. + // when using /MD). + static const __int64 int64_t_max = 9223372036854775807i64; + if ( m_ll <= int64_t_max ) + return wx_truncate_cast(double, (wxLongLong_t)m_ll); + + double d = wx_truncate_cast(double, int64_t_max); + d += (__int64)(m_ll - int64_t_max - 1); // The cast is safe because of -1 + return d + 1; +} +#endif // __VISUALC6__ #endif // wxUSE_LONGLONG_NATIVE @@ -86,42 +157,68 @@ ostream& operator<< (ostream& o, const wxLongLongNative& ll) #if wxUSE_LONGLONG_WX +// Set value from unsigned wxULongLongWx +wxLongLongWx &wxLongLongWx::operator=(const class wxULongLongWx &ll) +{ + m_hi = (unsigned long) ll.GetHi(); + m_lo = ll.GetLo(); + return *this; +} + // assignment wxLongLongWx& wxLongLongWx::Assign(double d) { bool positive = d >= 0; d = fabs(d); - if ( d <= LONG_MAX ) + if ( d <= ULONG_MAX ) { m_hi = 0; m_lo = (long)d; } else { -#if 0 - m_lo = (long)d; - d -= m_lo; - d /= 0x1000; - d /= 0x1000; - d /= 0x100; - m_hi = (long)d; -#else - wxFAIL_MSG(_T("TODO")); -#endif + m_hi = (unsigned long)(d / (1.0 + (double)ULONG_MAX)); + m_lo = (unsigned long)(d - ((double)m_hi * (1.0 + (double)ULONG_MAX))); } - if ( !positive ) - m_hi = -m_hi; - #ifdef wxLONGLONG_TEST_MODE m_ll = (wxLongLong_t)d; Check(); #endif // wxLONGLONG_TEST_MODE + if ( !positive ) + Negate(); + return *this; } +double wxLongLongWx::ToDouble() const +{ + double d = m_hi; + d *= 1.0 + (double)ULONG_MAX; + d += m_lo; + +#ifdef wxLONGLONG_TEST_MODE + wxASSERT( d == m_ll ); +#endif // wxLONGLONG_TEST_MODE + + return d; +} + +double wxULongLongWx::ToDouble() const +{ + unsigned double d = m_hi; + d *= 1.0 + (double)ULONG_MAX; + d += m_lo; + +#ifdef wxLONGLONG_TEST_MODE + wxASSERT( d == m_ll ); +#endif // wxLONGLONG_TEST_MODE + + return d; +} + wxLongLongWx wxLongLongWx::operator<<(int shift) const { wxLongLongWx ll(*this); @@ -130,6 +227,14 @@ wxLongLongWx wxLongLongWx::operator<<(int shift) const return ll; } +wxULongLongWx wxULongLongWx::operator<<(int shift) const +{ + wxULongLongWx ll(*this); + ll <<= shift; + + return ll; +} + wxLongLongWx& wxLongLongWx::operator<<=(int shift) { if (shift != 0) @@ -156,6 +261,32 @@ wxLongLongWx& wxLongLongWx::operator<<=(int shift) return *this; } +wxULongLongWx& wxULongLongWx::operator<<=(int shift) +{ + if (shift != 0) + { + if (shift < 32) + { + m_hi <<= shift; + m_hi |= m_lo >> (32 - shift); + m_lo <<= shift; + } + else + { + m_hi = m_lo << (shift - 32); + m_lo = 0; + } + } + +#ifdef wxLONGLONG_TEST_MODE + m_ll <<= shift; + + Check(); +#endif // wxLONGLONG_TEST_MODE + + return *this; +} + wxLongLongWx wxLongLongWx::operator>>(int shift) const { wxLongLongWx ll(*this); @@ -164,6 +295,14 @@ wxLongLongWx wxLongLongWx::operator>>(int shift) const return ll; } +wxULongLongWx wxULongLongWx::operator>>(int shift) const +{ + wxULongLongWx ll(*this); + ll >>= shift; + + return ll; +} + wxLongLongWx& wxLongLongWx::operator>>=(int shift) { if (shift != 0) @@ -190,6 +329,32 @@ wxLongLongWx& wxLongLongWx::operator>>=(int shift) return *this; } +wxULongLongWx& wxULongLongWx::operator>>=(int shift) +{ + if (shift != 0) + { + if (shift < 32) + { + m_lo >>= shift; + m_lo |= m_hi << (32 - shift); + m_hi >>= shift; + } + else + { + m_lo = m_hi >> (shift - 32); + m_hi = 0; + } + } + +#ifdef wxLONGLONG_TEST_MODE + m_ll >>= shift; + + Check(); +#endif // wxLONGLONG_TEST_MODE + + return *this; +} + wxLongLongWx wxLongLongWx::operator+(const wxLongLongWx& ll) const { wxLongLongWx res(*this); @@ -198,6 +363,14 @@ wxLongLongWx wxLongLongWx::operator+(const wxLongLongWx& ll) const return res; } +wxULongLongWx wxULongLongWx::operator+(const wxULongLongWx& ll) const +{ + wxULongLongWx res(*this); + res += ll; + + return res; +} + wxLongLongWx wxLongLongWx::operator+(long l) const { wxLongLongWx res(*this); @@ -206,6 +379,14 @@ wxLongLongWx wxLongLongWx::operator+(long l) const return res; } +wxULongLongWx wxULongLongWx::operator+(unsigned long l) const +{ + wxULongLongWx res(*this); + res += l; + + return res; +} + wxLongLongWx& wxLongLongWx::operator+=(const wxLongLongWx& ll) { unsigned long previous = m_lo; @@ -225,6 +406,25 @@ wxLongLongWx& wxLongLongWx::operator+=(const wxLongLongWx& ll) return *this; } +wxULongLongWx& wxULongLongWx::operator+=(const wxULongLongWx& ll) +{ + unsigned long previous = m_lo; + + m_lo += ll.m_lo; + m_hi += ll.m_hi; + + if ((m_lo < previous) || (m_lo < ll.m_lo)) + m_hi++; + +#ifdef wxLONGLONG_TEST_MODE + m_ll += ll.m_ll; + + Check(); +#endif // wxLONGLONG_TEST_MODE + + return *this; +} + wxLongLongWx& wxLongLongWx::operator+=(long l) { unsigned long previous = m_lo; @@ -245,6 +445,24 @@ wxLongLongWx& wxLongLongWx::operator+=(long l) return *this; } +wxULongLongWx& wxULongLongWx::operator+=(unsigned long l) +{ + unsigned long previous = m_lo; + + m_lo += l; + + if ((m_lo < previous) || (m_lo < l)) + m_hi++; + +#ifdef wxLONGLONG_TEST_MODE + m_ll += l; + + Check(); +#endif // wxLONGLONG_TEST_MODE + + return *this; +} + // pre increment wxLongLongWx& wxLongLongWx::operator++() { @@ -261,6 +479,21 @@ wxLongLongWx& wxLongLongWx::operator++() return *this; } +wxULongLongWx& wxULongLongWx::operator++() +{ + m_lo++; + if (m_lo == 0) + m_hi++; + +#ifdef wxLONGLONG_TEST_MODE + m_ll++; + + Check(); +#endif // wxLONGLONG_TEST_MODE + + return *this; +} + // negation wxLongLongWx wxLongLongWx::operator-() const { @@ -298,6 +531,18 @@ wxLongLongWx wxLongLongWx::operator-(const wxLongLongWx& ll) const return res; } +wxLongLongWx wxULongLongWx::operator-(const wxULongLongWx& ll) const +{ + wxASSERT(m_hi <= LONG_MAX ); + wxASSERT(ll.m_hi <= LONG_MAX ); + + wxLongLongWx res( (long)m_hi , m_lo ); + wxLongLongWx op( (long)ll.m_hi , ll.m_lo ); + res -= op; + + return res; +} + wxLongLongWx& wxLongLongWx::operator-=(const wxLongLongWx& ll) { unsigned long previous = m_lo; @@ -317,6 +562,25 @@ wxLongLongWx& wxLongLongWx::operator-=(const wxLongLongWx& ll) return *this; } +wxULongLongWx& wxULongLongWx::operator-=(const wxULongLongWx& ll) +{ + unsigned long previous = m_lo; + + m_lo -= ll.m_lo; + m_hi -= ll.m_hi; + + if (previous < ll.m_lo) + m_hi--; + +#ifdef wxLONGLONG_TEST_MODE + m_ll -= ll.m_ll; + + Check(); +#endif // wxLONGLONG_TEST_MODE + + return *this; +} + // pre decrement wxLongLongWx& wxLongLongWx::operator--() { @@ -333,26 +597,61 @@ wxLongLongWx& wxLongLongWx::operator--() return *this; } +wxULongLongWx& wxULongLongWx::operator--() +{ + m_lo--; + if (m_lo == 0xFFFFFFFF) + m_hi--; + +#ifdef wxLONGLONG_TEST_MODE + m_ll--; + + Check(); +#endif // wxLONGLONG_TEST_MODE + + return *this; +} + // comparison operators bool wxLongLongWx::operator<(const wxLongLongWx& ll) const { if ( m_hi < ll.m_hi ) - return TRUE; + return true; else if ( m_hi == ll.m_hi ) return m_lo < ll.m_lo; else - return FALSE; + return false; +} + +bool wxULongLongWx::operator<(const wxULongLongWx& ll) const +{ + if ( m_hi < ll.m_hi ) + return true; + else if ( m_hi == ll.m_hi ) + return m_lo < ll.m_lo; + else + return false; } bool wxLongLongWx::operator>(const wxLongLongWx& ll) const { if ( m_hi > ll.m_hi ) - return TRUE; + return true; + else if ( m_hi == ll.m_hi ) + return m_lo > ll.m_lo; + else + return false; +} + +bool wxULongLongWx::operator>(const wxULongLongWx& ll) const +{ + if ( m_hi > ll.m_hi ) + return true; else if ( m_hi == ll.m_hi ) return m_lo > ll.m_lo; else - return FALSE; + return false; } // bitwise operators @@ -362,16 +661,31 @@ wxLongLongWx wxLongLongWx::operator&(const wxLongLongWx& ll) const return wxLongLongWx(m_hi & ll.m_hi, m_lo & ll.m_lo); } +wxULongLongWx wxULongLongWx::operator&(const wxULongLongWx& ll) const +{ + return wxULongLongWx(m_hi & ll.m_hi, m_lo & ll.m_lo); +} + wxLongLongWx wxLongLongWx::operator|(const wxLongLongWx& ll) const { return wxLongLongWx(m_hi | ll.m_hi, m_lo | ll.m_lo); } +wxULongLongWx wxULongLongWx::operator|(const wxULongLongWx& ll) const +{ + return wxULongLongWx(m_hi | ll.m_hi, m_lo | ll.m_lo); +} + wxLongLongWx wxLongLongWx::operator^(const wxLongLongWx& ll) const { return wxLongLongWx(m_hi ^ ll.m_hi, m_lo ^ ll.m_lo); } +wxULongLongWx wxULongLongWx::operator^(const wxULongLongWx& ll) const +{ + return wxULongLongWx(m_hi ^ ll.m_hi, m_lo ^ ll.m_lo); +} + wxLongLongWx& wxLongLongWx::operator&=(const wxLongLongWx& ll) { m_lo &= ll.m_lo; @@ -386,6 +700,20 @@ wxLongLongWx& wxLongLongWx::operator&=(const wxLongLongWx& ll) return *this; } +wxULongLongWx& wxULongLongWx::operator&=(const wxULongLongWx& ll) +{ + m_lo &= ll.m_lo; + m_hi &= ll.m_hi; + +#ifdef wxLONGLONG_TEST_MODE + m_ll &= ll.m_ll; + + Check(); +#endif // wxLONGLONG_TEST_MODE + + return *this; +} + wxLongLongWx& wxLongLongWx::operator|=(const wxLongLongWx& ll) { m_lo |= ll.m_lo; @@ -400,6 +728,20 @@ wxLongLongWx& wxLongLongWx::operator|=(const wxLongLongWx& ll) return *this; } +wxULongLongWx& wxULongLongWx::operator|=(const wxULongLongWx& ll) +{ + m_lo |= ll.m_lo; + m_hi |= ll.m_hi; + +#ifdef wxLONGLONG_TEST_MODE + m_ll |= ll.m_ll; + + Check(); +#endif // wxLONGLONG_TEST_MODE + + return *this; +} + wxLongLongWx& wxLongLongWx::operator^=(const wxLongLongWx& ll) { m_lo ^= ll.m_lo; @@ -414,11 +756,30 @@ wxLongLongWx& wxLongLongWx::operator^=(const wxLongLongWx& ll) return *this; } +wxULongLongWx& wxULongLongWx::operator^=(const wxULongLongWx& ll) +{ + m_lo ^= ll.m_lo; + m_hi ^= ll.m_hi; + +#ifdef wxLONGLONG_TEST_MODE + m_ll ^= ll.m_ll; + + Check(); +#endif // wxLONGLONG_TEST_MODE + + return *this; +} + wxLongLongWx wxLongLongWx::operator~() const { return wxLongLongWx(~m_hi, ~m_lo); } +wxULongLongWx wxULongLongWx::operator~() const +{ + return wxULongLongWx(~m_hi, ~m_lo); +} + // multiplication wxLongLongWx wxLongLongWx::operator*(const wxLongLongWx& ll) const @@ -429,6 +790,14 @@ wxLongLongWx wxLongLongWx::operator*(const wxLongLongWx& ll) const return res; } +wxULongLongWx wxULongLongWx::operator*(const wxULongLongWx& ll) const +{ + wxULongLongWx res(*this); + res *= ll; + + return res; +} + wxLongLongWx& wxLongLongWx::operator*=(const wxLongLongWx& ll) { wxLongLongWx t(m_hi, m_lo); @@ -461,11 +830,45 @@ wxLongLongWx& wxLongLongWx::operator*=(const wxLongLongWx& ll) return *this; } +wxULongLongWx& wxULongLongWx::operator*=(const wxULongLongWx& ll) +{ + wxULongLongWx t(m_hi, m_lo); + wxULongLongWx q(ll.m_hi, ll.m_lo); + + m_hi = m_lo = 0; + +#ifdef wxLONGLONG_TEST_MODE + wxULongLong_t llOld = m_ll; + m_ll = 0; +#endif // wxLONGLONG_TEST_MODE + + int counter = 0; + do + { + if ((q.m_lo & 1) != 0) + *this += t; + q >>= 1; + t <<= 1; + counter++; + } + while ((counter < 64) && ((q.m_hi != 0) || (q.m_lo != 0))); + +#ifdef wxLONGLONG_TEST_MODE + m_ll = llOld * ll.m_ll; + + Check(); +#endif // wxLONGLONG_TEST_MODE + + return *this; +} + // division +#define IS_MSB_SET(ll) ((ll.GetHi()) & (1 << (8*sizeof(long) - 1))) + void wxLongLongWx::Divide(const wxLongLongWx& divisorIn, wxLongLongWx& quotient, - wxLongLongWx& remainder) const + wxLongLongWx& remainderIO) const { if ((divisorIn.m_lo == 0) && (divisorIn.m_hi == 0)) { @@ -486,11 +889,10 @@ void wxLongLongWx::Divide(const wxLongLongWx& divisorIn, // Use of this program, for any purpose, is granted the author, Ian // Kaplan, as long as this copyright notice is included in the source // code or any source code derived from this program. The user assumes - // all responsibility for using this code. + // all responsibility for using this code. // init everything - wxLongLongWx dividend = *this, - divisor = divisorIn; + wxULongLongWx dividend, divisor, remainder; quotient = 0l; remainder = 0l; @@ -503,17 +905,21 @@ void wxLongLongWx::Divide(const wxLongLongWx& divisorIn, // dividend = quotient*divisor + remainder // // with 0 <= abs(remainder) < abs(divisor) - bool negRemainder = dividend.m_hi < 0; - bool negQuotient = FALSE; // assume positive - if ( dividend.m_hi < 0 ) + bool negRemainder = GetHi() < 0; + bool negQuotient = false; // assume positive + if ( GetHi() < 0 ) { negQuotient = !negQuotient; - dividend = -dividend; + dividend = -*this; + } else { + dividend = *this; } - if ( divisor.m_hi < 0 ) + if ( divisorIn.GetHi() < 0 ) { negQuotient = !negQuotient; - divisor = -divisor; + divisor = -divisorIn; + } else { + divisor = divisorIn; } // check for some particular cases @@ -527,12 +933,10 @@ void wxLongLongWx::Divide(const wxLongLongWx& divisorIn, } else { - // here: dividend > divisor and both are positibe: do unsigned division + // here: dividend > divisor and both are positive: do unsigned division size_t nBits = 64u; wxLongLongWx d; - #define IS_MSB_SET(ll) ((ll.m_hi) & (1 << (8*sizeof(long) - 1))) - while ( remainder < divisor ) { remainder <<= 1; @@ -572,10 +976,12 @@ void wxLongLongWx::Divide(const wxLongLongWx& divisorIn, } } + remainderIO = remainder; + // adjust signs if ( negRemainder ) { - remainder = -remainder; + remainderIO = -remainderIO; } if ( negQuotient ) @@ -584,6 +990,93 @@ void wxLongLongWx::Divide(const wxLongLongWx& divisorIn, } } +void wxULongLongWx::Divide(const wxULongLongWx& divisorIn, + wxULongLongWx& quotient, + wxULongLongWx& remainder) const +{ + if ((divisorIn.m_lo == 0) && (divisorIn.m_hi == 0)) + { + // provoke division by zero error and silence the compilers warnings + // about an expression without effect and unused variable + unsigned long dummy = divisorIn.m_lo/divisorIn.m_hi; + dummy += 0; + } + + // VZ: I'm writing this in a hurry and it's surely not the fastest way to + // do this - any improvements are more than welcome + // + // code inspired by the snippet at + // http://www.bearcave.com/software/divide.htm + // + // Copyright notice: + // + // Use of this program, for any purpose, is granted the author, Ian + // Kaplan, as long as this copyright notice is included in the source + // code or any source code derived from this program. The user assumes + // all responsibility for using this code. + + // init everything + wxULongLongWx dividend = *this, + divisor = divisorIn; + + quotient = 0l; + remainder = 0l; + + // check for some particular cases + if ( divisor > dividend ) + { + remainder = dividend; + } + else if ( divisor == dividend ) + { + quotient = 1l; + } + else + { + // here: dividend > divisor + size_t nBits = 64u; + wxULongLongWx d; + + while ( remainder < divisor ) + { + remainder <<= 1; + if ( IS_MSB_SET(dividend) ) + { + remainder |= 1; + } + + d = dividend; + dividend <<= 1; + + nBits--; + } + + // undo the last loop iteration + dividend = d; + remainder >>= 1; + nBits++; + + for ( size_t i = 0; i < nBits; i++ ) + { + remainder <<= 1; + if ( IS_MSB_SET(dividend) ) + { + remainder |= 1; + } + + wxULongLongWx t = remainder - divisor; + dividend <<= 1; + quotient <<= 1; + if ( !IS_MSB_SET(t) ) + { + quotient |= 1; + + remainder = t; + } + } + } +} + wxLongLongWx wxLongLongWx::operator/(const wxLongLongWx& ll) const { wxLongLongWx quotient, remainder; @@ -593,13 +1086,35 @@ wxLongLongWx wxLongLongWx::operator/(const wxLongLongWx& ll) const return quotient; } +wxULongLongWx wxULongLongWx::operator/(const wxULongLongWx& ll) const +{ + wxULongLongWx quotient, remainder; + + Divide(ll, quotient, remainder); + + return quotient; +} + wxLongLongWx& wxLongLongWx::operator/=(const wxLongLongWx& ll) { wxLongLongWx quotient, remainder; Divide(ll, quotient, remainder); - return *this = quotient; + *this = quotient; + + return *this; +} + +wxULongLongWx& wxULongLongWx::operator/=(const wxULongLongWx& ll) +{ + wxULongLongWx quotient, remainder; + + Divide(ll, quotient, remainder); + + *this = quotient; + + return *this; } wxLongLongWx wxLongLongWx::operator%(const wxLongLongWx& ll) const @@ -611,6 +1126,15 @@ wxLongLongWx wxLongLongWx::operator%(const wxLongLongWx& ll) const return remainder; } +wxULongLongWx wxULongLongWx::operator%(const wxULongLongWx& ll) const +{ + wxULongLongWx quotient, remainder; + + Divide(ll, quotient, remainder); + + return remainder; +} + // ---------------------------------------------------------------------------- // misc // ---------------------------------------------------------------------------- @@ -632,27 +1156,224 @@ void *wxLongLongWx::asArray(void) const return temp; } +void *wxULongLongWx::asArray(void) const +{ + static unsigned char temp[8]; + + temp[0] = (char)((m_hi >> 24) & 0xFF); + temp[1] = (char)((m_hi >> 16) & 0xFF); + temp[2] = (char)((m_hi >> 8) & 0xFF); + temp[3] = (char)((m_hi >> 0) & 0xFF); + temp[4] = (char)((m_lo >> 24) & 0xFF); + temp[5] = (char)((m_lo >> 16) & 0xFF); + temp[6] = (char)((m_lo >> 8) & 0xFF); + temp[7] = (char)((m_lo >> 0) & 0xFF); + + return temp; +} + +#endif // wxUSE_LONGLONG_WX + +#define LL_TO_STRING(name) \ + wxString name::ToString() const \ + { \ + /* TODO: this is awfully inefficient, anything better? */ \ + wxString result; \ + \ + name ll = *this; \ + \ + bool neg = ll < 0; \ + if ( neg ) \ + { \ + while ( ll != 0 ) \ + { \ + long digit = (ll % 10).ToLong(); \ + result.Prepend((wxChar)(wxT('0') - digit)); \ + ll /= 10; \ + } \ + } \ + else \ + { \ + while ( ll != 0 ) \ + { \ + long digit = (ll % 10).ToLong(); \ + result.Prepend((wxChar)(wxT('0') + digit)); \ + ll /= 10; \ + } \ + } \ + \ + if ( result.empty() ) \ + result = wxT('0'); \ + else if ( neg ) \ + result.Prepend(wxT('-')); \ + \ + return result; \ + } + +#define ULL_TO_STRING(name) \ + wxString name::ToString() const \ + { \ + /* TODO: this is awfully inefficient, anything better? */ \ + wxString result; \ + \ + name ll = *this; \ + \ + while ( ll != 0 ) \ + { \ + result.Prepend((wxChar)(wxT('0') + (ll % 10).ToULong())); \ + ll /= 10; \ + } \ + \ + if ( result.empty() ) \ + result = wxT('0'); \ + \ + return result; \ + } + +#if wxUSE_LONGLONG_NATIVE + LL_TO_STRING(wxLongLongNative) + ULL_TO_STRING(wxULongLongNative) +#endif + +#if wxUSE_LONGLONG_WX + LL_TO_STRING(wxLongLongWx) + ULL_TO_STRING(wxULongLongWx) +#endif + #if wxUSE_STD_IOSTREAM // input/output -ostream& operator<< (ostream& o, const wxLongLongWx& ll) +WXDLLIMPEXP_BASE +wxSTD ostream& operator<< (wxSTD ostream& o, const wxLongLong& ll) { - char result[65]; + return o << ll.ToString(); +} + +WXDLLIMPEXP_BASE +wxSTD ostream& operator<< (wxSTD ostream& o, const wxULongLong& ll) +{ + return o << ll.ToString(); +} - memset(result, 'A', 64); +#endif // wxUSE_STD_IOSTREAM - result[64] = '\0'; +WXDLLIMPEXP_BASE wxString& operator<< (wxString& s, const wxLongLong& ll) +{ + return s << ll.ToString(); +} - for (int i = 0; i < 32; i++) - { - result[31 - i] = (char) ('0' + (int) ((ll.m_hi >> i) & 1)); - result[63 - i] = (char) ('0' + (int) ((ll.m_lo >> i) & 1)); +WXDLLIMPEXP_BASE wxString& operator<< (wxString& s, const wxULongLong& ll) +{ + return s << ll.ToString(); +} + +#if wxUSE_STREAMS + +WXDLLIMPEXP_BASE wxTextOutputStream& operator<< (wxTextOutputStream& o, const wxULongLong& ll) +{ + return o << ll.ToString(); +} + +WXDLLIMPEXP_BASE wxTextOutputStream& operator<< (wxTextOutputStream& o, const wxLongLong& ll) +{ + return o << ll.ToString(); +} + +#define READ_STRING_CHAR(s, idx, len) ((idx!=len) ? (wxChar)s[idx++] : wxT('\0')) + +WXDLLIMPEXP_BASE class wxTextInputStream &operator>>(class wxTextInputStream &o, wxULongLong &ll) +{ + wxString s = o.ReadWord(); + + ll = wxULongLong(0l, 0l); + size_t length = s.length(); + size_t idx = 0; + + wxChar ch = READ_STRING_CHAR(s, idx, length); + + // Skip WS + while (ch==wxT(' ') || ch==wxT('\t')) + ch = READ_STRING_CHAR(s, idx, length); + + // Read number + wxULongLong multiplier(0l, 10l); + while (ch>=wxT('0') && ch<=wxT('9')) { + long lValue = (unsigned) (ch - wxT('0')); + ll = ll * multiplier + wxULongLong(0l, lValue); + ch = READ_STRING_CHAR(s, idx, length); } - return o << result; + return o; +} + +WXDLLIMPEXP_BASE class wxTextInputStream &operator>>(class wxTextInputStream &o, wxLongLong &ll) +{ + wxString s = o.ReadWord(); + + ll = wxLongLong(0l, 0l); + size_t length = s.length(); + size_t idx = 0; + + wxChar ch = READ_STRING_CHAR(s, idx, length); + + // Skip WS + while (ch==wxT(' ') || ch==wxT('\t')) + ch = READ_STRING_CHAR(s, idx, length); + + // Ask for sign + int iSign = 1; + if (ch==wxT('-') || ch==wxT('+')) { + iSign = ((ch==wxT('-')) ? -1 : 1); + ch = READ_STRING_CHAR(s, idx, length); + } + + // Read number + wxLongLong multiplier(0l, 10l); + while (ch>=wxT('0') && ch<=wxT('9')) { + long lValue = (unsigned) (ch - wxT('0')); + ll = ll * multiplier + wxLongLong(0l, lValue); + ch = READ_STRING_CHAR(s, idx, length); + } + +#if wxUSE_LONGLONG_NATIVE + ll = ll * wxLongLong((wxLongLong_t) iSign); +#else + ll = ll * wxLongLong((long) iSign); +#endif + + return o; +} + +#if wxUSE_LONGLONG_NATIVE + +WXDLLIMPEXP_BASE class wxTextOutputStream &operator<<(class wxTextOutputStream &o, wxULongLong_t value) +{ + return o << wxULongLong(value).ToString(); +} + +WXDLLIMPEXP_BASE class wxTextOutputStream &operator<<(class wxTextOutputStream &o, wxLongLong_t value) +{ + return o << wxLongLong(value).ToString(); +} + +WXDLLIMPEXP_BASE class wxTextInputStream &operator>>(class wxTextInputStream &o, wxULongLong_t &value) +{ + wxULongLong ll; + o >> ll; + value = ll.GetValue(); + return o; +} + +WXDLLIMPEXP_BASE class wxTextInputStream &operator>>(class wxTextInputStream &o, wxLongLong_t &value) +{ + wxLongLong ll; + o >> ll; + value = ll.GetValue(); + return o; } -#endif // wxUSE_STD_IOSTREAM #endif // wxUSE_LONGLONG_NATIVE +#endif // wxUSE_STREAMS + #endif // wxUSE_LONGLONG