// 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"
+#if defined(__MWERKS__) && defined(__WXMSW__)
+#include <string.h> // for memset()
+#else
#include <memory.h> // for memset()
+#endif
+
#include <math.h> // for fabs()
// ============================================================================
{
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;
}
-#if wxUSE_STD_IOSTREAM
-
-// input/output
-ostream& operator<< (ostream& o, const wxLongLongNative& ll)
+void *wxULongLongNative::asArray() const
{
- char result[65];
-
- memset(result, 'A', 64);
-
- result[64] = '\0';
+ static unsigned char temp[8];
- for (int i = 0; i < 64; i++)
- {
- result[63 - i] = '0' + (char) ((ll.m_ll >> i) & 1);
- }
+ 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 o << result;
+ return temp;
}
-#endif // wxUSE_STD_IOSTREAM
-
#endif // wxUSE_LONGLONG_NATIVE
// ============================================================================
{
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;
}
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;
}
+wxULongLongWx wxULongLongWx::operator-(const wxULongLongWx& ll) const
+{
+ wxULongLongWx res(*this);
+ res -= ll;
+
+ 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;
+ 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
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
+ unsigned wxLongLong_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,
// 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,
//
// 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;
}
}
+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;
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
return remainder;
}
+wxULongLongWx wxULongLongWx::operator%(const wxULongLongWx& ll) const
+{
+ wxULongLongWx quotient, remainder;
+
+ Divide(ll, quotient, remainder);
+
+ return remainder;
+}
+
// ----------------------------------------------------------------------------
// misc
// ----------------------------------------------------------------------------
return temp;
}
-#if wxUSE_STD_IOSTREAM
+void *wxULongLongWx::asArray(void) const
+{
+ static unsigned char temp[8];
-// input/output
-ostream& operator<< (ostream& o, const wxLongLongWx& ll)
+ 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
+
+wxString
+#if wxUSE_LONGLONG_NATIVE
+wxLongLongNative::ToString() const
+#else
+wxLongLongWx::ToString() const
+#endif
{
- char result[65];
+ // TODO: this is awfully inefficient, anything better?
+ wxString result;
+
+ wxLongLong ll = *this;
+
+ bool neg;
+ if ( ll < 0 )
+ {
+ ll.Negate();
+ neg = true;
+ }
+ else
+ {
+ neg = false;
+ }
+
+ while ( ll != 0 )
+ {
+ result.Prepend((wxChar)(_T('0') + (ll % 10).ToLong()));
+ ll /= 10;
+ }
- memset(result, 'A', 64);
+ if ( result.empty() )
+ result = _T('0');
+ else if ( neg )
+ result.Prepend(_T('-'));
+
+ return result;
+}
+
+wxString
+#if wxUSE_LONGLONG_NATIVE
+wxULongLongNative::ToString() const
+#else
+wxULongLongWx::ToString() const
+#endif
+{
+ // TODO: this is awfully inefficient, anything better?
+ wxString result;
- result[64] = '\0';
+ wxULongLong ll = *this;
- for (int i = 0; i < 32; i++)
+ while ( ll != 0 )
{
- result[31 - i] = (char) ('0' + (int) ((ll.m_hi >> i) & 1));
- result[63 - i] = (char) ('0' + (int) ((ll.m_lo >> i) & 1));
+ result.Prepend((wxChar)(_T('0') + (ll % 10).ToULong()));
+ ll /= 10;
}
- return o << result;
+ if ( result.empty() )
+ result = _T('0');
+
+ return result;
}
-#endif // wxUSE_STD_IOSTREAM
-#endif // wxUSE_LONGLONG_NATIVE
+#if wxUSE_STD_IOSTREAM
+
+// input/output
+wxSTD ostream& operator<< (wxSTD ostream& o, const wxLongLong& ll)
+{
+ return o << ll.ToString();
+}
+
+wxSTD ostream& operator<< (wxSTD ostream& o, const wxULongLong& ll)
+{
+ return o << ll.ToString();
+}
+
+#endif // wxUSE_STD_IOSTREAM
#endif // wxUSE_LONGLONG
projects / wxWidgets.git / blobdiff