/////////////////////////////////////////////////////////////////////////////
-// Name: wx/longlong.cpp
+// Name: src/common/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 licence
/////////////////////////////////////////////////////////////////////////////
// headers
// ============================================================================
-#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
- #pragma implementation "longlong.h"
-#endif
-
#include "wx/wxprec.h"
#ifdef __BORLANDC__
#endif
#if wxUSE_LONGLONG
+
#include "wx/longlong.h"
-#if defined(__MWERKS__) && defined(__WXMSW__)
-#include <string.h> // for memset()
-#else
-#include <memory.h> // for memset()
+#ifndef WX_PRECOMP
+ #include "wx/math.h" // for fabs()
#endif
-#include <math.h> // for fabs()
+#if wxUSE_STREAMS
+ #include "wx/txtstrm.h"
+#endif
+
+#include <string.h> // for memset()
+
+#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] = 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;
}
{
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_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;
+}
+
+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;
+}
+
+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());
+}
+
+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;
+}
+
+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
// ============================================================================
#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)
{
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);
return res;
}
-wxULongLongWx wxULongLongWx::operator-(const wxULongLongWx& ll) const
+wxLongLongWx wxULongLongWx::operator-(const wxULongLongWx& ll) const
{
- wxULongLongWx res(*this);
- res -= ll;
+ 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;
}
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;
+ 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;
+ return true;
else if ( m_hi == ll.m_hi )
return m_lo > ll.m_lo;
else
- return FALSE;
+ return false;
}
// bitwise operators
m_hi = m_lo = 0;
#ifdef wxLONGLONG_TEST_MODE
- unsigned wxLongLong_t llOld = m_ll;
+ wxULongLong_t llOld = m_ll;
m_ll = 0;
#endif // wxLONGLONG_TEST_MODE
// 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))
{
// all responsibility for using this code.
// init everything
- wxLongLongWx dividend = *this,
- divisor = divisorIn;
+ wxULongLongWx dividend, divisor, remainder;
quotient = 0l;
remainder = 0l;
// 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
}
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;
}
}
+ remainderIO = remainder;
+
// adjust signs
if ( negRemainder )
{
- remainder = -remainder;
+ remainderIO = -remainderIO;
}
if ( negQuotient )
size_t nBits = 64u;
wxULongLongWx d;
- #define IS_MSB_SET(ll) ((ll.m_hi) & (1 << (8*sizeof(long) - 1)))
-
while ( remainder < divisor )
{
remainder <<= 1;
#endif // wxUSE_LONGLONG_WX
-wxString
+#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
-wxLongLongNative::ToString() const
-#else
-wxLongLongWx::ToString() const
+ 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
+WXDLLIMPEXP_BASE
+wxSTD ostream& operator<< (wxSTD ostream& o, const wxLongLong& ll)
{
- // TODO: this is awfully inefficient, anything better?
- wxString result;
+ return o << ll.ToString();
+}
- wxLongLong ll = *this;
+WXDLLIMPEXP_BASE
+wxSTD ostream& operator<< (wxSTD ostream& o, const wxULongLong& ll)
+{
+ return o << ll.ToString();
+}
- bool neg;
- if ( ll < 0 )
- {
- ll.Negate();
- neg = TRUE;
- }
- else
- {
- neg = FALSE;
- }
+#endif // wxUSE_STD_IOSTREAM
- while ( ll != 0 )
- {
- result.Prepend((wxChar)(_T('0') + (ll % 10).ToLong()));
- ll /= 10;
- }
+WXDLLIMPEXP_BASE wxString& operator<< (wxString& s, const wxLongLong& ll)
+{
+ return s << ll.ToString();
+}
- if ( result.empty() )
- result = _T('0');
- else if ( neg )
- result.Prepend(_T('-'));
+WXDLLIMPEXP_BASE wxString& operator<< (wxString& s, const wxULongLong& ll)
+{
+ return s << ll.ToString();
+}
+
+#if wxUSE_STREAMS
- return result;
+WXDLLIMPEXP_BASE wxTextOutputStream& operator<< (wxTextOutputStream& o, const wxULongLong& ll)
+{
+ return o << ll.ToString();
}
-wxString
-#if wxUSE_LONGLONG_NATIVE
-wxULongLongNative::ToString() const
-#else
-wxULongLongWx::ToString() const
-#endif
+WXDLLIMPEXP_BASE wxTextOutputStream& operator<< (wxTextOutputStream& o, const wxLongLong& ll)
{
- // TODO: this is awfully inefficient, anything better?
- wxString result;
+ return o << ll.ToString();
+}
- wxULongLong ll = *this;
+#define READ_STRING_CHAR(s, idx, len) ((idx!=len) ? (wxChar)s[idx++] : wxT('\0'))
- while ( ll != 0 )
- {
- result.Prepend((wxChar)(_T('0') + (ll % 10).ToULong()));
- ll /= 10;
+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);
}
- if ( result.empty() )
- result = _T('0');
+ 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 result;
+ return o;
}
-#if wxUSE_STD_IOSTREAM
+#if wxUSE_LONGLONG_NATIVE
-// input/output
-wxSTD ostream& operator<< (wxSTD ostream& o, const wxLongLong& ll)
+WXDLLIMPEXP_BASE class wxTextOutputStream &operator<<(class wxTextOutputStream &o, wxULongLong_t value)
{
- return o << ll.ToString();
+ return o << wxULongLong(value).ToString();
}
-wxSTD ostream& operator<< (wxSTD ostream& o, const wxULongLong& ll)
+WXDLLIMPEXP_BASE class wxTextOutputStream &operator<<(class wxTextOutputStream &o, wxLongLong_t value)
{
- return o << ll.ToString();
+ return o << wxLongLong(value).ToString();
}
-#endif // wxUSE_STD_IOSTREAM
+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_LONGLONG_NATIVE
+
+#endif // wxUSE_STREAMS
#endif // wxUSE_LONGLONG
projects / wxWidgets.git / blobdiff