X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/62675f1e331549a873edd094c686fae771e862c5..c9ccc09c64f4c29d4667796bef7b507d9e8d25ed:/include/wx/longlong.h?ds=sidebyside

diff --git a/include/wx/longlong.h b/include/wx/longlong.h
index 59dcd57c74..f248bb6d21 100644
--- a/include/wx/longlong.h
+++ b/include/wx/longlong.h
@@ -67,8 +67,8 @@
         #define wxUSE_LONGLONG_NATIVE 0
     #endif
 
-    class WXDLLIMPEXP_BASE wxLongLongWx;
-    class WXDLLIMPEXP_BASE wxULongLongWx;
+    class WXDLLIMPEXP_FWD_BASE wxLongLongWx;
+    class WXDLLIMPEXP_FWD_BASE wxULongLongWx;
 #if defined(__VISUALC__) && !defined(__WIN32__)
     #define wxLongLong wxLongLongWx
     #define wxULongLong wxULongLongWx
@@ -86,8 +86,8 @@
 
 #ifndef wxUSE_LONGLONG_WX
     #define wxUSE_LONGLONG_WX 0
-    class WXDLLIMPEXP_BASE wxLongLongNative;
-    class WXDLLIMPEXP_BASE wxULongLongNative;
+    class WXDLLIMPEXP_FWD_BASE wxLongLongNative;
+    class WXDLLIMPEXP_FWD_BASE wxULongLongNative;
     typedef wxLongLongNative wxLongLong;
     typedef wxULongLongNative wxULongLong;
 #endif
@@ -113,9 +113,9 @@ public:
         // from long long
     wxLongLongNative(wxLongLong_t ll) : m_ll(ll) { }
         // from 2 longs
-    wxLongLongNative(long hi, unsigned long lo) : m_ll(0)
+    wxLongLongNative(wxInt32 hi, wxUint32 lo)
     {
-        // assign first to avoid precision loss!
+        // cast to wxLongLong_t first to avoid precision loss!
         m_ll = ((wxLongLong_t) hi) << 32;
         m_ll |= (wxLongLong_t) lo;
     }
@@ -160,11 +160,11 @@ public:
 
     // accessors
         // get high part
-    long GetHi() const
-        { return wx_truncate_cast(long, m_ll >> 32); }
+    wxInt32 GetHi() const
+        { return wx_truncate_cast(wxInt32, m_ll >> 32); }
         // get low part
-    unsigned long GetLo() const
-        { return wx_truncate_cast(unsigned long, m_ll); }
+    wxUint32 GetLo() const
+        { return wx_truncate_cast(wxUint32, m_ll); }
 
         // get absolute value
     wxLongLongNative Abs() const { return wxLongLongNative(*this).Abs(); }
@@ -177,7 +177,7 @@ public:
     long ToLong() const
     {
         wxASSERT_MSG( (m_ll >= LONG_MIN) && (m_ll <= LONG_MAX),
-                      _T("wxLongLong to long conversion loss of precision") );
+                      wxT("wxLongLong to long conversion loss of precision") );
 
         return wx_truncate_cast(long, m_ll);
     }
@@ -350,9 +350,9 @@ public:
         // from long long
     wxULongLongNative(wxULongLong_t ll) : m_ll(ll) { }
         // from 2 longs
-    wxULongLongNative(unsigned long hi, unsigned long lo) : m_ll(0)
+    wxULongLongNative(wxUint32 hi, wxUint32 lo) : m_ll(0)
     {
-        // assign first to avoid precision loss!
+        // cast to wxLongLong_t first to avoid precision loss!
         m_ll = ((wxULongLong_t) hi) << 32;
         m_ll |= (wxULongLong_t) lo;
     }
@@ -392,11 +392,11 @@ public:
 
     // accessors
         // get high part
-    unsigned long GetHi() const
-        { return wx_truncate_cast(unsigned long, m_ll >> 32); }
+    wxUint32 GetHi() const
+        { return wx_truncate_cast(wxUint32, m_ll >> 32); }
         // get low part
-    unsigned long GetLo() const
-        { return wx_truncate_cast(unsigned long, m_ll); }
+    wxUint32 GetLo() const
+        { return wx_truncate_cast(wxUint32, m_ll); }
 
         // convert to native ulong long
     wxULongLong_t GetValue() const { return m_ll; }
@@ -404,12 +404,24 @@ public:
         // convert to ulong with range checking in debug mode (only!)
     unsigned long ToULong() const
     {
-        wxASSERT_MSG( m_ll <= LONG_MAX,
-                      _T("wxULongLong to long conversion loss of precision") );
+        wxASSERT_MSG( m_ll <= ULONG_MAX,
+                      wxT("wxULongLong to long conversion loss of precision") );
 
         return wx_truncate_cast(unsigned long, m_ll);
     }
 
+        // convert to double
+        //
+        // For some completely obscure reasons compiling the cast below with
+        // VC6 in DLL builds only (!) results in "error C2520: conversion from
+        // unsigned __int64 to double not implemented, use signed __int64" so
+        // we must use a different version for that compiler.
+#ifdef __VISUALC6__
+    double ToDouble() const;
+#else
+    double ToDouble() const { return wx_truncate_cast(double, m_ll); }
+#endif
+
     // operations
         // addition
     wxULongLongNative operator+(const wxULongLongNative& ll) const
@@ -676,7 +688,7 @@ public:
     long ToLong() const
     {
         wxASSERT_MSG( (m_hi == 0l) || (m_hi == -1l),
-                      _T("wxLongLong to long conversion loss of precision") );
+                      wxT("wxLongLong to long conversion loss of precision") );
 
         return (long)m_lo;
     }
@@ -901,11 +913,14 @@ public:
     unsigned long ToULong() const
     {
         wxASSERT_MSG( m_hi == 0ul,
-                      _T("wxULongLong to long conversion loss of precision") );
+                      wxT("wxULongLong to long conversion loss of precision") );
 
         return (unsigned long)m_lo;
     }
 
+        // convert to double
+    double ToDouble() const;
+
     // operations
         // addition
     wxULongLongWx operator+(const wxULongLongWx& ll) const;
@@ -1065,6 +1080,39 @@ WXDLLIMPEXP_BASE class wxTextInputStream &operator>>(class wxTextInputStream &st
 
 #endif
 
+// ----------------------------------------------------------------------------
+// Specialize numeric_limits<> for our long long wrapper classes.
+// ----------------------------------------------------------------------------
+
+#if wxUSE_LONGLONG_NATIVE
+
+// VC6 is known to not have __int64 specializations of numeric_limits<> in its
+// <limits> anyhow so don't bother including it, especially as it results in
+// tons of warnings because the standard header itself uses obsolete template
+// specialization syntax.
+#ifndef __VISUALC6__
+
+#include <limits>
+
+namespace std
+{
+
+template<> class numeric_limits<wxLongLong>
+    : public numeric_limits<wxLongLong_t>
+{
+};
+
+template<> class numeric_limits<wxULongLong>
+    : public numeric_limits<wxULongLong_t>
+{
+};
+
+} // namespace std
+
+#endif // !VC6
+
+#endif // wxUSE_LONGLONG_NATIVE
+
 #endif // wxUSE_LONGLONG
 
 #endif // _WX_LONGLONG_H