X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/0203c8cd674d1c53adace200219c0a95871365bf..677856c9ef3e4d4f0bb4b9acf71fd8f6a90a2f01:/src/common/longlong.cpp diff --git a/src/common/longlong.cpp b/src/common/longlong.cpp index 304264faf0..b61b13d159 100644 --- a/src/common/longlong.cpp +++ b/src/common/longlong.cpp @@ -15,10 +15,6 @@ // headers // ============================================================================ -#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA) - #pragma implementation "longlong.h" -#endif - #include "wx/wxprec.h" #ifdef __BORLANDC__ @@ -27,6 +23,7 @@ #if wxUSE_LONGLONG #include "wx/longlong.h" +#include "wx/math.h" // for fabs() #if defined(__MWERKS__) && defined(__WXMSW__) #include // for memset() @@ -34,7 +31,7 @@ #include // for memset() #endif -#include // for fabs() +#include "wx/ioswrap.h" // ============================================================================ // implementation @@ -50,14 +47,14 @@ void *wxLongLongNative::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); + 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; } @@ -66,18 +63,37 @@ 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); + 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; +} +#endif + #endif // wxUSE_LONGLONG_NATIVE // ============================================================================ @@ -114,6 +130,19 @@ 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; +} + wxLongLongWx wxLongLongWx::operator<<(int shift) const { wxLongLongWx ll(*this); @@ -426,10 +455,14 @@ wxLongLongWx wxLongLongWx::operator-(const wxLongLongWx& ll) const 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; } @@ -729,7 +762,7 @@ wxULongLongWx& wxULongLongWx::operator*=(const wxULongLongWx& ll) 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 @@ -755,9 +788,11 @@ wxULongLongWx& wxULongLongWx::operator*=(const wxULongLongWx& ll) // 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)) { @@ -781,8 +816,7 @@ void wxLongLongWx::Divide(const wxLongLongWx& divisorIn, // all responsibility for using this code. // init everything - wxLongLongWx dividend = *this, - divisor = divisorIn; + wxULongLongWx dividend, divisor, remainder; quotient = 0l; remainder = 0l; @@ -795,17 +829,21 @@ void wxLongLongWx::Divide(const wxLongLongWx& divisorIn, // dividend = quotient*divisor + remainder // // with 0 <= abs(remainder) < abs(divisor) - bool negRemainder = dividend.m_hi < 0; + bool negRemainder = GetHi() < 0; bool negQuotient = false; // assume positive - if ( dividend.m_hi < 0 ) + 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 @@ -819,12 +857,10 @@ 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; @@ -864,10 +900,12 @@ void wxLongLongWx::Divide(const wxLongLongWx& divisorIn, } } + remainderIO = remainder; + // adjust signs if ( negRemainder ) { - remainder = -remainder; + remainderIO = -remainderIO; } if ( negQuotient ) @@ -923,8 +961,6 @@ void wxULongLongWx::Divide(const wxULongLongWx& divisorIn, size_t nBits = 64u; wxULongLongWx d; - #define IS_MSB_SET(ll) ((ll.m_hi) & (1 << (8*sizeof(long) - 1))) - while ( remainder < divisor ) { remainder <<= 1; @@ -1062,75 +1098,82 @@ void *wxULongLongWx::asArray(void) const #endif // wxUSE_LONGLONG_WX -wxString -#if wxUSE_LONGLONG_NATIVE -wxLongLongNative::ToString() const -#else -wxLongLongWx::ToString() const -#endif -{ - // TODO: this is awfully inefficient, anything better? - wxString result; - - wxLongLong ll = *this; - - bool neg; - if ( ll < 0 ) - { - ll.Negate(); - neg = true; - } - else - { - neg = false; +#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('-')); - - return result; -} - -wxString #if wxUSE_LONGLONG_NATIVE -wxULongLongNative::ToString() const -#else -wxULongLongWx::ToString() const + LL_TO_STRING(wxLongLongNative) + ULL_TO_STRING(wxULongLongNative) #endif -{ - // TODO: this is awfully inefficient, anything better? - wxString result; - - wxULongLong ll = *this; - while ( ll != 0 ) - { - result.Prepend((wxChar)(_T('0') + (ll % 10).ToULong())); - ll /= 10; - } - - if ( result.empty() ) - result = _T('0'); - - 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(); @@ -1138,4 +1181,14 @@ wxSTD ostream& operator<< (wxSTD ostream& o, const wxULongLong& ll) #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