compilation warning (and possible bug) fix

[wxWidgets.git] / include / wx / longlong.h

diff --git a/include/wx/longlong.h b/include/wx/longlong.h
index dd35aafdd2d9d619b974a2e2000ca6b945bb65e2..07d8ca434281a2d72b760f42b3e649faddadb456 100644 (file)
--- a/include/wx/longlong.h
+++ b/include/wx/longlong.h
@@ -18,7 +18,7 @@
 #endif
 
 #include "wx/defs.h"
-#include "wx/wxchar.h"
+#include "wx/string.h"
 
 #include <limits.h>     // for LONG_MAX
 
@@ -45,6 +45,9 @@
 // NB: we #define and not typedef wxLongLong_t because we want to be able to
 //     use 'unsigned wxLongLong_t' as well and because we use "#ifdef
 //     wxLongLong_t" below
+
+// first check for generic cases which are long on 64bit machine and "long
+// long", then check for specific compilers
 #if defined(SIZEOF_LONG) && (SIZEOF_LONG == 8)
     #define wxLongLong_t long
     #define wxLongLongIsLong
@@ -52,7 +55,9 @@
     #define wxLongLong_t __int64
 #elif defined(__BORLANDC__) && defined(__WIN32__) && (__BORLANDC__ >= 0x520)
     #define wxLongLong_t __int64
-#elif defined(__GNUG__)
+#elif defined(SIZEOF_LONG_LONG) && SIZEOF_LONG_LONG >= 8
+    #define wxLongLong_t long long
+#elif defined(__MINGW32__) || defined(__CYGWIN__)
     #define wxLongLong_t long long
 #elif defined(__MWERKS__)
     #if __option(longlong)
@@ -65,12 +70,16 @@
         #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 - unless the compiler is
-    // seriously broken as Watcom C++ seems to be...
-#ifndef __WATCOMC__
+    // unknown pragma should never be an error - except that, actually, some
+    // broken compilers don't like it, so we have to disable it in this case
+    // <sigh>
+#if !(defined(__WATCOMC__) || defined(__VISAGECPP__))
     #pragma warning "Your compiler does not appear to support 64 bit "\
-                    "integers, using emulation class instead."
+                    "integers, using emulation class instead.\n" \
+                    "Please report your compiler version to " \
+                    "wx-dev@lists.wxwindows.org!"
 #endif
+
     #define wxUSE_LONGLONG_WX 1
 #endif // compiler
 
@@ -85,7 +94,12 @@
     #endif
 
     class WXDLLEXPORT wxLongLongWx;
+#if defined(__VISUALC__) && !defined(__WIN32__)
+    #define wxLongLong wxLongLongWx
+#else
     typedef wxLongLongWx wxLongLong;
+#endif
+
 #else
     // if nothing is defined, use native implementation by default, of course
     #ifndef wxUSE_LONGLONG_NATIVE
@@ -195,6 +209,7 @@ public:
         // negation operator
     wxLongLongNative operator-() const
         { return wxLongLongNative(-m_ll); }
+    wxLongLongNative& Negate() { m_ll = -m_ll; return *this; }
 
         // subtraction
     wxLongLongNative operator-(const wxLongLongNative& ll) const
@@ -295,12 +310,16 @@ public:
         { return m_ll >= l; }
 
     // miscellaneous
+
+        // return the string representation of this number
+    wxString ToString() const;
+
         // conversion to byte array: returns a pointer to static buffer!
     void *asArray() const;
 
 #if wxUSE_STD_IOSTREAM
         // input/output
-    friend ostream& operator<<(ostream&, const wxLongLongNative&);
+    friend wxSTD ostream& operator<<(wxSTD ostream&, const wxLongLongNative&);
 #endif
 
 private:
@@ -481,12 +500,16 @@ public:
                 wxLongLongWx& remainder) const;
 
     // input/output
-#if wxUSE_STD_IOSTREAM
-    friend ostream& operator<<(ostream&, const wxLongLongWx&);
-#endif // wxUSE_STD_IOSTREAM
+
+    // return the string representation of this number
+    wxString ToString() const;
 
     void *asArray() const;
 
+#if wxUSE_STD_IOSTREAM
+    friend wxSTD ostream& operator<<(wxSTD ostream&, const wxLongLongWx&);
+#endif // wxUSE_STD_IOSTREAM
+
 private:
     // long is at least 32 bits, so represent our 64bit number as 2 longs
 
@@ -509,14 +532,14 @@ private:
 // 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 bool operator<(long l, const wxLongLong& ll) { return ll > l; }
+inline bool operator>(long l, const wxLongLong& ll) { return ll > l; }
+inline bool operator<=(long l, const wxLongLong& ll) { return ll > l; }
+inline bool operator>=(long l, const wxLongLong& ll) { return ll > l; }
+inline bool operator==(long l, const wxLongLong& ll) { return ll > l; }
+inline bool 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; }
+inline wxLongLong operator+(long l, const wxLongLong& ll) { return ll + l; }
+inline wxLongLong operator-(long l, const wxLongLong& ll) { return ll - l; }
 
 #endif // _WX_LONGLONG_H