Comment-only update

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

diff --git a/include/wx/math.h b/include/wx/math.h
index e5fdef0a5823a83311a320686f43cd3094044641..3ee45490e087d95bc48c95a681a3f4831a5e8986 100644 (file)
--- a/include/wx/math.h
+++ b/include/wx/math.h
@@ -4,7 +4,6 @@
 * Author:      John Labenski and others
 * Modified by:
 * Created:     02/02/03
-* RCS-ID:      $Id$
 * Copyright:   (c) John Labenski
 * Licence:     wxWindows licence
 */
@@ -24,7 +23,7 @@
 
 /* Scaling factors for various unit conversions: 1 inch = 2.54 cm */
 #ifndef METRIC_CONVERSION_CONSTANT
-    #define METRIC_CONVERSION_CONSTANT (1./254)
+    #define METRIC_CONVERSION_CONSTANT (1/25.4)
 #endif
 
 #ifndef mm2inches
@@ -57,9 +56,23 @@
 #if defined(__VISUALC__) || defined(__BORLANDC__) || defined(__WATCOMC__)
     #include <float.h>
     #define wxFinite(x) _finite(x)
-#elif defined(__GNUG__)||defined(__GNUWIN32__)||defined(__DJGPP__)|| \
+#elif defined(__MINGW64__) || defined(__clang__)
+    /*
+        add more compilers with C99 support here: using C99 isfinite() is
+        preferable to using BSD-ish finite()
+     */
+    #if defined(_GLIBCXX_CMATH) || defined(_LIBCPP_CMATH)
+        // these <cmath> headers #undef isfinite
+        #define wxFinite(x) std::isfinite(x)
+    #else
+        #define wxFinite(x) isfinite(x)
+    #endif
+#elif ( defined(__GNUG__)||defined(__GNUWIN32__)||defined(__DJGPP__)|| \
       defined(__SGI_CC__)||defined(__SUNCC__)||defined(__XLC__)|| \
-      defined(__HPUX__)||defined(__MWERKS__)
+      defined(__HPUX__) ) && ( !defined(wxOSX_USE_IPHONE) || wxOSX_USE_IPHONE == 0 )
+#ifdef __SOLARIS__
+#include <ieeefp.h>
+#endif
     #define wxFinite(x) finite(x)
 #else
     #define wxFinite(x) ((x) == (x))
@@ -70,7 +83,7 @@
     #define wxIsNaN(x) _isnan(x)
 #elif defined(__GNUG__)||defined(__GNUWIN32__)||defined(__DJGPP__)|| \
       defined(__SGI_CC__)||defined(__SUNCC__)||defined(__XLC__)|| \
-      defined(__HPUX__)||defined(__MWERKS__)
+      defined(__HPUX__)
     #define wxIsNaN(x) isnan(x)
 #else
     #define wxIsNaN(x) ((x) != (x))
@@ -86,7 +99,7 @@
             //     shouldn't be used with doubles, but we get too many of them and
             //     removing these operators is probably not a good idea
             //
-            //     Maybe we should alway compare doubles up to some "epsilon" precision
+            //     Maybe we should always compare doubles up to some "epsilon" precision
             #pragma warning(push)
 
             // floating-point equality and inequality comparisons are unreliable
@@ -98,8 +111,9 @@
         }
 
     #else /* !__INTELC__ */
-
+        wxGCC_WARNING_SUPPRESS(float-equal)
         inline bool wxIsSameDouble(double x, double y) { return x == y; }
+        wxGCC_WARNING_RESTORE(float-equal)
 
     #endif /* __INTELC__/!__INTELC__ */
 
@@ -108,7 +122,7 @@
     inline int wxRound(double x)
     {
         wxASSERT_MSG( x > INT_MIN - 0.5 && x < INT_MAX + 0.5,
-                      _T("argument out of supported range") );
+                      wxT("argument out of supported range") );
 
         #if defined(HAVE_ROUND)
             return int(round(x));
@@ -119,12 +133,10 @@
 #endif /* __cplusplus */
 
 
-#if defined(__WXMSW__) && !defined(__WXWINCE__)
+#if defined(__WINDOWS__) && !defined(__WXWINCE__)
     #define wxMulDivInt32( a , b , c ) ::MulDiv( a , b , c )
-#elif defined( __WXMAC__ )
-    #define wxMulDivInt32( a , b , c ) ( (wxInt32) ( ( (wxInt64)(a) * (wxInt64)(b) ) / (wxInt64)(c) ) )
 #else
-    #define wxMulDivInt32( a , b , c ) ((wxInt32)((a)*(((wxDouble)b)/((wxDouble)c))))
+    #define wxMulDivInt32( a , b , c ) (wxRound((a)*(((wxDouble)b)/((wxDouble)c))))
 #endif
 
 #if wxUSE_APPLE_IEEE
@@ -139,7 +151,7 @@
 #if WXWIN_COMPATIBILITY_2_8
     wxDEPRECATED( WXDLLIMPEXP_BASE wxFloat64 ConvertFromIeeeExtended(const wxInt8 *bytes) );
     wxDEPRECATED( WXDLLIMPEXP_BASE void ConvertToIeeeExtended(wxFloat64 num, wxInt8 *bytes) );
-#endif // WXWIN_COMPATIBILITY_2_8
+#endif
 
 #ifdef __cplusplus
     }