X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/8b81872f2efe2948592096f155729ec4ba5640a2..2a36259f27f58de31cdd66d6c5176e776fc25df3:/include/wx/longlong.h?ds=sidebyside diff --git a/include/wx/longlong.h b/include/wx/longlong.h index 5f0b712947..b2b617a804 100644 --- a/include/wx/longlong.h +++ b/include/wx/longlong.h @@ -19,20 +19,31 @@ #pragma interface "longlong.h" #endif +#include "wx/defs.h" +#include "wx/wxchar.h" +#include "wx/debug.h" + +#include // for LONG_MAX + +// #define wxUSE_LONGLONG_WX 1 // for testing (VZ) + // ---------------------------------------------------------------------------- // decide upon which class we will use // ---------------------------------------------------------------------------- // to avoid compilation problems on 64bit machines with ambiguous method calls -// we will need this +// we will need to define this #undef wxLongLongIsLong // NB: we #define and not typedef wxLongLong_t because we want to be able to -// use 'unsigned wxLongLong_t' as well +// use 'unsigned wxLongLong_t' as well and because we use "#ifdef +// wxLongLong_t" below #if defined(SIZEOF_LONG) && (SIZEOF_LONG == 8) #define wxLongLong_t long #define wxLongLongIsLong -#elif defined(__VISUALC__) +#elif (defined(__VISUALC__) && defined(__WIN32__)) || defined( __VMS__ ) + #define wxLongLong_t __int64 +#elif defined(__BORLANDC__) && (__BORLANDC__ >= 0x530) #define wxLongLong_t __int64 #elif defined(__GNUG__) #define wxLongLong_t long long @@ -43,20 +54,34 @@ #error "The 64 bit integer support in CodeWarrior has been disabled." #error "See the documentation on the 'longlong' pragma." #endif -#else - #warning "Your compiler does not appear to support 64 bit integers, "\ - "using emulation class instead." +#elif defined(__VISAGECPP__) && __IBMCPP__ >= 400 + #define wxLongLong_t long long +#else // no native long long type + // both warning and pragma warning are not portable, but at least an + // unknown pragma should never be an error. + // Err, actually, Watcom C++ doesn't like it. + // (well, if the compilers are _that_ broken, I'm removing it (VZ)) +#if 0 //ndef __WATCOMC__ + #pragma warning "Your compiler does not appear to support 64 bit "\ + "integers, using emulation class instead." +#endif + #define wxUSE_LONGLONG_WX 1 #endif // compiler // the user may predefine wxUSE_LONGLONG_NATIVE and/or wxUSE_LONGLONG_NATIVE // to disable automatic testing (useful for the test program which defines // both classes) but by default we only use one class -#ifndef wxLongLong_t +#if (defined(wxUSE_LONGLONG_WX) && wxUSE_LONGLONG_WX) || !defined(wxLongLong_t) #undef wxUSE_LONGLONG_NATIVE #define wxUSE_LONGLONG_NATIVE 0 class WXDLLEXPORT wxLongLongWx; typedef wxLongLongWx wxLongLong; +#else + // if nothing is defined, use native implementation by default, of course + #ifndef wxUSE_LONGLONG_NATIVE + #define wxUSE_LONGLONG_NATIVE 1 + #endif #endif #ifndef wxUSE_LONGLONG_WX @@ -93,7 +118,7 @@ public: m_ll |= (wxLongLong_t) lo; } - // default copy ctor is ok in both cases + // default copy ctor is ok // no dtor @@ -102,20 +127,41 @@ public: wxLongLongNative& operator=(wxLongLong_t ll) { m_ll = ll; return *this; } + // from double: this one has an explicit name because otherwise we + // would have ambiguity with "ll = int" and also because we don't want + // to have implicit conversions between doubles and wxLongLongs + wxLongLongNative& Assign(double d) + { m_ll = (wxLongLong_t)d; return *this; } + // assignment operators from wxLongLongNative is ok // accessors // get high part long GetHi() const - { return (long)((m_ll & 0xFFFFFFFF00000000ll) >> 32); } + { return (long)(m_ll >> 32); } // get low part unsigned long GetLo() const - { return (unsigned long) (m_ll & 0x00000000FFFFFFFFll); } + { return (unsigned long)m_ll; } + + // get absolute value + wxLongLongNative Abs() const { return wxLongLongNative(*this).Abs(); } + wxLongLongNative& Abs() { if ( m_ll < 0 ) m_ll = -m_ll; return *this; } // convert to native long long wxLongLong_t GetValue() const { return m_ll; } - operator wxLongLong_t() const { return m_ll; } + // convert to long with range checking in the debug mode (only!) + long ToLong() const + { + wxASSERT_MSG( (m_ll >= LONG_MIN) && (m_ll <= LONG_MAX), + _T("wxLongLong to long conversion loss of precision") ); + + return (long)m_ll; + } + + // don't provide implicit conversion to wxLongLong_t or we will have an + // ambiguity for all arithmetic operations + //operator wxLongLong_t() const { return m_ll; } // operations // addition @@ -189,40 +235,64 @@ public: wxLongLongNative& operator^=(const wxLongLongNative& ll) { m_ll ^= ll.m_ll; return *this; } - // multiplication/division TODO + // multiplication/division wxLongLongNative operator*(const wxLongLongNative& ll) const { return wxLongLongNative(m_ll * ll.m_ll); } + wxLongLongNative operator*(long l) const + { return wxLongLongNative(m_ll * l); } wxLongLongNative& operator*=(const wxLongLongNative& ll) { m_ll *= ll.m_ll; return *this; } + wxLongLongNative& operator*=(long l) + { m_ll *= l; return *this; } wxLongLongNative operator/(const wxLongLongNative& ll) const { return wxLongLongNative(m_ll / ll.m_ll); } + wxLongLongNative operator/(long l) const + { return wxLongLongNative(m_ll / l); } wxLongLongNative& operator/=(const wxLongLongNative& ll) { m_ll /= ll.m_ll; return *this; } + wxLongLongNative& operator/=(long l) + { m_ll /= l; return *this; } wxLongLongNative operator%(const wxLongLongNative& ll) const { return wxLongLongNative(m_ll % ll.m_ll); } + wxLongLongNative operator%(long l) const + { return wxLongLongNative(m_ll % l); } // comparison bool operator==(const wxLongLongNative& ll) const { return m_ll == ll.m_ll; } + bool operator==(long l) const + { return m_ll == l; } bool operator!=(const wxLongLongNative& ll) const { return m_ll != ll.m_ll; } + bool operator!=(long l) const + { return m_ll != l; } bool operator<(const wxLongLongNative& ll) const { return m_ll < ll.m_ll; } + bool operator<(long l) const + { return m_ll < l; } bool operator>(const wxLongLongNative& ll) const { return m_ll > ll.m_ll; } + bool operator>(long l) const + { return m_ll > l; } bool operator<=(const wxLongLongNative& ll) const { return m_ll <= ll.m_ll; } + bool operator<=(long l) const + { return m_ll <= l; } bool operator>=(const wxLongLongNative& ll) const { return m_ll >= ll.m_ll; } + bool operator>=(long l) const + { return m_ll >= l; } // miscellaneous // conversion to byte array: returns a pointer to static buffer! void *asArray() const; +#if wxUSE_STD_IOSTREAM // input/output - friend std::ostream& operator<<(ostream&, const wxLongLongNative&); + friend ostream& operator<<(ostream&, const wxLongLongNative&); +#endif private: wxLongLong_t m_ll; @@ -253,6 +323,8 @@ public: // from long wxLongLongWx& operator=(long l) { m_lo = l; m_hi = (l < 0 ? -1l : 0l); return *this; } + // from double + wxLongLongWx& Assign(double d); // can't have assignment operator from 2 longs // accessors @@ -261,6 +333,19 @@ public: // get low part unsigned long GetLo() const { return m_lo; } + // get absolute value + wxLongLongWx Abs() const { return wxLongLongWx(*this).Abs(); } + wxLongLongWx& Abs() { if ( m_hi < 0 ) m_hi = -m_hi; return *this; } + + // convert to long with range checking in the debug mode (only!) + long ToLong() const + { + wxASSERT_MSG( m_hi == 0l, + _T("wxLongLong to long conversion loss of precision") ); + + return (long)m_lo; + } + // operations // addition wxLongLongWx operator+(const wxLongLongWx& ll) const; @@ -306,25 +391,37 @@ public: wxLongLongWx operator~() const; // comparison - bool operator==(const wxLongLongWx& ll) const; - bool operator!=(const wxLongLongWx& ll) const; + bool operator==(const wxLongLongWx& ll) const + { return m_lo == ll.m_lo && m_hi == ll.m_hi; } + bool operator!=(const wxLongLongWx& ll) const + { return !(*this == ll); } bool operator<(const wxLongLongWx& ll) const; bool operator>(const wxLongLongWx& ll) const; - bool operator<=(const wxLongLongWx& ll) const; - bool operator>=(const wxLongLongWx& ll) const; + bool operator<=(const wxLongLongWx& ll) const + { return *this < ll || *this == ll; } + bool operator>=(const wxLongLongWx& ll) const + { return *this > ll || *this == ll; } // multiplication wxLongLongWx operator*(const wxLongLongWx& ll) const; wxLongLongWx& operator*=(const wxLongLongWx& ll); - void *asArray(void) const; // division + wxLongLongWx operator/(const wxLongLongWx& ll) const; + wxLongLongWx& operator/=(const wxLongLongWx& ll); + + wxLongLongWx operator%(const wxLongLongWx& ll) const; + void Divide(const wxLongLongWx& divisor, wxLongLongWx& quotient, wxLongLongWx& remainder) const; // input/output - friend ostream& operator<<(std::ostream&, const wxLongLongWx&); +#if wxUSE_STD_IOSTREAM + friend ostream& operator<<(ostream&, const wxLongLongWx&); +#endif // wxUSE_STD_IOSTREAM + + void *asArray(void) const; private: // long is at least 32 bits, so represent our 64bit number as 2 longs @@ -335,4 +432,18 @@ private: #endif // wxUSE_LONGLONG_WX +// ---------------------------------------------------------------------------- +// binary operators +// ---------------------------------------------------------------------------- + +inline bool WXDLLEXPORT operator<(long l, const wxLongLong& ll) { return ll > l; } +inline bool WXDLLEXPORT operator>(long l, const wxLongLong& ll) { return ll > l; } +inline bool WXDLLEXPORT operator<=(long l, const wxLongLong& ll) { return ll > l; } +inline bool WXDLLEXPORT operator>=(long l, const wxLongLong& ll) { return ll > l; } +inline bool WXDLLEXPORT operator==(long l, const wxLongLong& ll) { return ll > l; } +inline bool WXDLLEXPORT operator!=(long l, const wxLongLong& ll) { return ll > l; } + +inline wxLongLong WXDLLEXPORT operator+(long l, const wxLongLong& ll) { return ll + l; } +inline wxLongLong WXDLLEXPORT operator-(long l, const wxLongLong& ll) { return ll - l; } + #endif // _WX_LONGLONG_H