From e09080ec62ad4a03d9efe7ef17bd225266fd4b81 Mon Sep 17 00:00:00 2001
From: Vadim Zeitlin <vadim@wxwidgets.org>
Date: Sat, 4 Nov 2006 23:27:15 +0000
Subject: [PATCH] use built in VC8 time functions instead of our (almost
 certainly broken) ones for wxWinCE

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@43076 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
---
 include/wx/msw/wince/time.h | 19 ++++++++++++-------
 src/common/datetime.cpp     | 32 ++++++++++++++++++++++++++++++--
 src/msw/wince/time.cpp      | 30 ++++++++++++++++++++++++++----
 3 files changed, 68 insertions(+), 13 deletions(-)

diff --git a/include/wx/msw/wince/time.h b/include/wx/msw/wince/time.h
index cb027d176f..d711111c89 100644
--- a/include/wx/msw/wince/time.h
+++ b/include/wx/msw/wince/time.h
@@ -4,8 +4,8 @@
  * Missing time functions and structures for use under WinCE
  */
 
-#ifndef __WINCE_TIME_
-#define __WINCE_TIME_
+#ifndef _WX_MSW_WINCE_TIME_H_
+#define _WX_MSW_WINCE_TIME_H_
 
 #ifndef _TM_DEFINED
 
@@ -26,23 +26,28 @@ struct tm {
 extern "C"
 {
 
-struct tm * __cdecl localtime(const time_t *);
-
 time_t __cdecl time(time_t *);
 
 time_t __cdecl mktime(struct tm *);
 
+// VC8 CRT provides the other functions
+#if !defined(__VISUALC__) || (__VISUALC__ < 1400)
+
+struct tm * __cdecl localtime(const time_t *);
+
 struct tm * __cdecl gmtime(const time_t *);
 
 #define _tcsftime   wcsftime
 
 size_t __cdecl wcsftime(wchar_t *, size_t, const wchar_t *, const struct tm *);
 
-}
-
 extern long timezone;
 
+#endif // !VC8
+
+}
+
 #endif // !_TM_DEFINED
 
-#endif // __WINCE_TIME_
+#endif // _WX_MSW_WINCE_TIME_H_
 
diff --git a/src/common/datetime.cpp b/src/common/datetime.cpp
index 4f1f73550a..abf6439eb2 100644
--- a/src/common/datetime.cpp
+++ b/src/common/datetime.cpp
@@ -141,6 +141,13 @@ wxCUSTOM_TYPE_INFO(wxDateTime, wxToStringConverter<wxDateTime> , wxFromStringCon
     #include <wtime.h>
 #endif
 
+// define a special symbol for VC8 instead of writing tests for 1400 repeatedly
+#ifdef __VISUALC__
+    #if __VISUALC__ >= 1400
+        #define __VISUALC8__
+    #endif
+#endif
+
 #if !defined(WX_TIMEZONE) && !defined(WX_GMTOFF_IN_TM)
     #if defined(__WXPALMOS__)
         #define WX_GMTOFF_IN_TM
@@ -166,11 +173,30 @@ wxCUSTOM_TYPE_INFO(wxDateTime, wxToStringConverter<wxDateTime> , wxFromStringCon
         #define WX_TIMEZONE wxGetTimeZone()
     #elif defined(__DARWIN__)
         #define WX_GMTOFF_IN_TM
+    #elif defined(__WXWINCE__) && defined(__VISUALC8__)
+        #define WX_TIMEZONE _timezone
     #else // unknown platform - try timezone
         #define WX_TIMEZONE timezone
     #endif
 #endif // !WX_TIMEZONE && !WX_GMTOFF_IN_TM
 
+// NB: VC8 safe time functions could/should be used for wxMSW as well probably
+#if defined(__WXWINCE__) && defined(__VISUALC8__)
+
+struct tm *wxLocaltime_r(const time_t *t, struct tm* tm)
+{
+    __time64_t t64 = *t;
+    return _localtime64_s(tm, &t64) == 0 ? tm : NULL;
+}
+
+struct tm *wxGmtime_r(const time_t* t, struct tm* tm)
+{
+    __time64_t t64 = *t;
+    return _gmtime64_s(tm, &t64) == 0 ? tm : NULL;
+}
+
+#else // !wxWinCE with VC8
+
 #if (!defined(HAVE_LOCALTIME_R) || !defined(HAVE_GMTIME_R)) && wxUSE_THREADS && !defined(__WINDOWS__)
 static wxMutex timeLock;
 #endif
@@ -186,7 +212,7 @@ struct tm *wxLocaltime_r(const time_t* ticks, struct tm* temp)
   memcpy(temp, localtime(ticks), sizeof(struct tm));
   return temp;
 }
-#endif
+#endif // !HAVE_LOCALTIME_R
 
 #ifndef HAVE_GMTIME_R
 struct tm *wxGmtime_r(const time_t* ticks, struct tm* temp)
@@ -199,7 +225,9 @@ struct tm *wxGmtime_r(const time_t* ticks, struct tm* temp)
   memcpy(temp, gmtime(ticks), sizeof(struct tm));
   return temp;
 }
-#endif
+#endif // !HAVE_GMTIME_R
+
+#endif // wxWinCE with VC8/other platforms
 
 // ----------------------------------------------------------------------------
 // macros
diff --git a/src/msw/wince/time.cpp b/src/msw/wince/time.cpp
index 587d4a7964..6e6915b819 100644
--- a/src/msw/wince/time.cpp
+++ b/src/msw/wince/time.cpp
@@ -2,7 +2,7 @@
 // Name:        src/msw/wince/time.cpp
 // Purpose:     Implements missing time functionality for WinCE
 // Author:      Marco Cavallini (MCK) - wx@koansoftware.com
-// Modified by:
+// Modified by: Vadim Zeitlin for VC8 support
 // Created:     31-08-2003
 // RCS-ID:      $Id$
 // Copyright:   (c) Marco Cavallini
@@ -30,6 +30,30 @@
 
 #include "wx/msw/wince/time.h"
 
+#if defined(__VISUALC__) && (__VISUALC__ >= 1400)
+
+// VC8 does provide the time functions but not the standard ones
+#include <altcecrt.h>
+
+time_t __cdecl time(time_t *t)
+{
+    __time64_t t64;
+    if ( !_time64(&t64) )
+        return (time_t)-1;
+
+    if ( t )
+        *t = (time_t)t64;
+
+    return (time_t)t64;
+}
+
+time_t __cdecl mktime(struct tm *t)
+{
+    return (time_t)_mktime64(t);
+}
+
+#else // !VC8
+
 /////////////////////////////////////////////////////////////////////////////////////////////
 //                                                                                         //
 //                             strftime() - taken from OpenBSD                             //
@@ -499,7 +523,6 @@ extern "C"
 
 /* Not needed in VS Studio 2005 */
 
-#if !(__VISUALC__ >= 1400)
 size_t wcsftime(wchar_t *s,
                 const size_t maxsize,
                 const wchar_t *format,
@@ -516,7 +539,6 @@ size_t wcsftime(wchar_t *s,
 
     return sz;
 }
-#endif
 
 } /* extern "C" */
 
@@ -737,4 +759,4 @@ time_t __cdecl mktime(struct tm *t)
 
 } // extern "C"
 
-
+#endif // VC8/!VC8
-- 
2.45.2