// Name: wx/longlong.cpp
// Purpose: implementation of wxLongLongNative
// Author: Jeffrey C. Ollie <jeff@ollie.clive.ia.us>, 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 <zeitlin@dptmaths.ens-cachan.fr>
-// Licence: wxWindows license
+// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
// ============================================================================
// headers
// ============================================================================
-#ifdef __GNUG__
+#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
#pragma implementation "longlong.h"
#endif
#if wxUSE_LONGLONG
#include "wx/longlong.h"
+#include "wx/math.h" // for fabs()
+#if defined(__MWERKS__) && defined(__WXMSW__)
+#include <string.h> // for memset()
+#else
#include <memory.h> // for memset()
-#include <math.h> // for fabs()
+#endif
+
+#include "wx/ioswrap.h"
// ============================================================================
// implementation
{
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] = (unsigned char)((m_ll >> 56) & 0xFF);
+ temp[1] = (unsigned char)((m_ll >> 48) & 0xFF);
+ temp[2] = (unsigned char)((m_ll >> 40) & 0xFF);
+ temp[3] = (unsigned char)((m_ll >> 32) & 0xFF);
+ temp[4] = (unsigned char)((m_ll >> 24) & 0xFF);
+ temp[5] = (unsigned char)((m_ll >> 16) & 0xFF);
+ temp[6] = (unsigned char)((m_ll >> 8) & 0xFF);
+ temp[7] = (unsigned char)((m_ll >> 0) & 0xFF);
+
+ return temp;
+}
+
+void *wxULongLongNative::asArray() const
+{
+ static unsigned char temp[8];
+
+ temp[0] = (unsigned char)((m_ll >> 56) & 0xFF);
+ temp[1] = (unsigned char)((m_ll >> 48) & 0xFF);
+ temp[2] = (unsigned char)((m_ll >> 40) & 0xFF);
+ temp[3] = (unsigned char)((m_ll >> 32) & 0xFF);
+ temp[4] = (unsigned char)((m_ll >> 24) & 0xFF);
+ temp[5] = (unsigned char)((m_ll >> 16) & 0xFF);
+ temp[6] = (unsigned char)((m_ll >> 8) & 0xFF);
+ temp[7] = (unsigned char)((m_ll >> 0) & 0xFF);
return temp;
}
+#if wxUSE_LONGLONG_WX
+wxLongLongNative::wxLongLongNative(wxLongLongWx ll)
+{
+ // assign first to avoid precision loss!
+ m_ll = ll.GetHi();
+ m_ll <<= 32;
+ m_ll |= ll.GetLo();
+}
+
+wxLongLongNative& wxLongLongNative::operator=(wxLongLongWx ll)
+{
+ // assign first to avoid precision loss!
+ m_ll = ll.GetHi();
+ m_ll <<= 32;
+ m_ll |= ll.GetLo();
+ return *this;
+}
+#endif
+
#endif // wxUSE_LONGLONG_NATIVE
// ============================================================================
return ll;
}
+wxULongLongWx wxULongLongWx::operator<<(int shift) const
+{
+ wxULongLongWx ll(*this);
+ ll <<= shift;
+
+ return ll;
+}
+
wxLongLongWx& wxLongLongWx::operator<<=(int shift)
{
if (shift != 0)
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);
return ll;
}
+wxULongLongWx wxULongLongWx::operator>>(int shift) const
+{
+ wxULongLongWx ll(*this);
+ ll >>= shift;
+
+ return ll;
+}
+
wxLongLongWx& wxLongLongWx::operator>>=(int shift)
{
if (shift != 0)
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);
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);
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;
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;
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++()
{
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
{
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;
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--()
{
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;
+}
+
+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;
}
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;
}
// bitwise operators
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;
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;
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;
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
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);
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
void wxLongLongWx::Divide(const wxLongLongWx& divisorIn,
//
// with 0 <= abs(remainder) < abs(divisor)
bool negRemainder = dividend.m_hi < 0;
- bool negQuotient = FALSE; // assume positive
+ bool negQuotient = false; // assume positive
if ( dividend.m_hi < 0 )
{
negQuotient = !negQuotient;
}
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;
}
}
+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;
+
+ #define IS_MSB_SET(ll) ((ll.m_hi) & (1 << (8*sizeof(long) - 1)))
+
+ 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;
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;
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
{
wxLongLongWx quotient, remainder;
return remainder;
}
+wxULongLongWx wxULongLongWx::operator%(const wxULongLongWx& ll) const
+{
+ wxULongLongWx quotient, remainder;
+
+ Divide(ll, quotient, remainder);
+
+ return remainder;
+}
+
// ----------------------------------------------------------------------------
// misc
// ----------------------------------------------------------------------------
return temp;
}
-#endif // wxUSE_LONGLONG_WX
-
-wxString
-#ifdef wxUSE_LONGLONG_NATIVE
-wxLongLongNative
-#else
-wxLognLongWx
-#endif
-::ToString() const
+void *wxULongLongWx::asArray(void) const
{
- // TODO: this is awfully inefficient, anything better?
- wxString result;
+ 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);
- wxLongLong ll = *this;
+ return temp;
+}
- bool neg;
- if ( ll < 0 )
- {
- ll.Negate();
- neg = TRUE;
- }
- else
- {
- neg = FALSE;
+#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)(_T('0') - digit)); \
+ ll /= 10; \
+ } \
+ } \
+ else \
+ { \
+ while ( ll != 0 ) \
+ { \
+ long digit = (ll % 10).ToLong(); \
+ result.Prepend((wxChar)(_T('0') + digit)); \
+ ll /= 10; \
+ } \
+ } \
+ \
+ if ( result.empty() ) \
+ result = _T('0'); \
+ else if ( neg ) \
+ result.Prepend(_T('-')); \
+ \
+ return result; \
}
- while ( ll != 0 )
- {
- result.Prepend((wxChar)(_T('0') + (ll % 10).ToLong()));
- ll /= 10;
+#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)(_T('0') + (ll % 10).ToULong())); \
+ ll /= 10; \
+ } \
+ \
+ if ( result.empty() ) \
+ result = _T('0'); \
+ \
+ return result; \
}
- if ( result.empty() )
- result = _T('0');
- else if ( neg )
- result.Prepend(_T('-'));
+#if wxUSE_LONGLONG_NATIVE
+ LL_TO_STRING(wxLongLongNative)
+ ULL_TO_STRING(wxULongLongNative)
+#endif
- return result;
-}
+#if wxUSE_LONGLONG_WX
+ LL_TO_STRING(wxLongLongWx)
+ ULL_TO_STRING(wxULongLongWx)
+#endif
#if wxUSE_STD_IOSTREAM
// input/output
+WXDLLIMPEXP_BASE
wxSTD ostream& operator<< (wxSTD ostream& o, const wxLongLong& ll)
{
return o << ll.ToString();
}
+WXDLLIMPEXP_BASE
+wxSTD ostream& operator<< (wxSTD ostream& o, const wxULongLong& ll)
+{
+ return o << ll.ToString();
+}
+
#endif // wxUSE_STD_IOSTREAM
+WXDLLIMPEXP_BASE wxString& operator<< (wxString& s, const wxLongLong& ll)
+{
+ return s << ll.ToString();
+}
+
+WXDLLIMPEXP_BASE wxString& operator<< (wxString& s, const wxULongLong& ll)
+{
+ return s << ll.ToString();
+}
+
#endif // wxUSE_LONGLONG
projects / wxWidgets.git / blobdiff