fix for Borland compilation

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

diff --git a/include/wx/log.h b/include/wx/log.h
index 78c614424532faaf093faeef633d7e94c43dc8fb..83ea99678ea20d4901ee6c071f8f1088ea55c011 100644 (file)
--- a/include/wx/log.h
+++ b/include/wx/log.h
@@ -45,14 +45,17 @@ typedef unsigned long wxLogLevel;
 // ----------------------------------------------------------------------------
 
 #include "wx/string.h"
 // ----------------------------------------------------------------------------
 
 #include "wx/string.h"

+#include "wx/strvararg.h"

 
 #if wxUSE_LOG
 
 #include "wx/arrstr.h"
 
 
 #if wxUSE_LOG
 
 #include "wx/arrstr.h"
 

+#ifndef __WXPALMOS5__

 #ifndef __WXWINCE__
     #include <time.h>   // for time_t
 #endif
 #ifndef __WXWINCE__
     #include <time.h>   // for time_t
 #endif

+#endif // ! __WXPALMOS5__

 
 #include "wx/dynarray.h"
 
 
 #include "wx/dynarray.h"
 


@@ -69,10 +72,10 @@ typedef unsigned long wxLogLevel;
 // ----------------------------------------------------------------------------
 
 #if wxUSE_GUI
 // ----------------------------------------------------------------------------
 
 #if wxUSE_GUI

-    class WXDLLIMPEXP_CORE wxTextCtrl;
-    class WXDLLIMPEXP_CORE wxLogFrame;
-    class WXDLLIMPEXP_CORE wxFrame;
-    class WXDLLIMPEXP_CORE wxWindow;
+    class WXDLLIMPEXP_FWD_CORE wxTextCtrl;
+    class WXDLLIMPEXP_FWD_CORE wxLogFrame;
+    class WXDLLIMPEXP_FWD_CORE wxFrame;
+    class WXDLLIMPEXP_FWD_CORE wxWindow;

 #endif // wxUSE_GUI
 
 // ----------------------------------------------------------------------------
 #endif // wxUSE_GUI
 
 // ----------------------------------------------------------------------------


@@ -80,7 +83,7 @@ typedef unsigned long wxLogLevel;
 // ----------------------------------------------------------------------------
 
 // different standard log levels (you may also define your own)
 // ----------------------------------------------------------------------------
 
 // different standard log levels (you may also define your own)

-enum
+enum wxLogLevelValues

 {
     wxLOG_FatalError, // program can't continue, abort immediately
     wxLOG_Error,      // a serious error, user must be informed about it
 {
     wxLOG_FatalError, // program can't continue, abort immediately
     wxLOG_Error,      // a serious error, user must be informed about it


@@ -121,13 +124,6 @@ public:
     // ctor
     wxLog(){}
 
     // ctor
     wxLog(){}
 

-    // Internal buffer.
-
-    // Allow replacement of the fixed size static buffer with
-    // a user allocated one.  Pass in NULL to restore the
-    // built in static buffer.
-    static wxChar *SetLogBuffer( wxChar *buf, size_t size = 0 );
-

     // these functions allow to completely disable all log messages
 
     // is logging disabled now?
     // these functions allow to completely disable all log messages
 
     // is logging disabled now?


@@ -135,19 +131,11 @@ public:
 
     // change the flag state, return the previous one
     static bool EnableLogging(bool doIt = true)
 
     // change the flag state, return the previous one
     static bool EnableLogging(bool doIt = true)

-    { bool doLogOld = ms_doLog; ms_doLog = doIt; return doLogOld; }
+        { bool doLogOld = ms_doLog; ms_doLog = doIt; return doLogOld; }

 
     // static sink function - see DoLog() for function to overload in the
     // derived classes
 
     // static sink function - see DoLog() for function to overload in the
     // derived classes

-    static void OnLog(wxLogLevel level, const wxChar *szString, time_t t)
-    {
-        if ( IsEnabled() && ms_logLevel >= level )
-        {
-            wxLog *pLogger = GetActiveTarget();
-            if ( pLogger )
-                pLogger->DoLog(level, szString, t);
-        }
-    }
+    static void OnLog(wxLogLevel level, const wxString& szString, time_t t);

 
     // message buffering
 
 
     // message buffering
 


@@ -195,12 +183,22 @@ public:
     // current is NULL?
     static void DontCreateOnDemand();
 
     // current is NULL?
     static void DontCreateOnDemand();
 

+    // Make GetActiveTarget() create a new log object again.
+    static void DoCreateOnDemand();
+
+    // log the count of repeating messages instead of logging the messages
+    // multiple times
+    static void SetRepetitionCounting(bool bRepetCounting = true)
+        { ms_bRepetCounting = bRepetCounting; }
+
+    // gets duplicate counting status
+    static bool GetRepetitionCounting() { return ms_bRepetCounting; }
+

     // trace mask (see wxTraceXXX constants for details)
     static void SetTraceMask(wxTraceMask ulMask) { ms_ulTraceMask = ulMask; }
 
     // add string trace mask
     // trace mask (see wxTraceXXX constants for details)
     static void SetTraceMask(wxTraceMask ulMask) { ms_ulTraceMask = ulMask; }
 
     // add string trace mask

-    static void AddTraceMask(const wxString& str)
-    { ms_aTraceMasks.push_back(str); }
+    static void AddTraceMask(const wxString& str);

 
     // add string trace mask
     static void RemoveTraceMask(const wxString& str);
 
     // add string trace mask
     static void RemoveTraceMask(const wxString& str);


@@ -208,13 +206,17 @@ public:
     // remove all string trace masks
     static void ClearTraceMasks();
 
     // remove all string trace masks
     static void ClearTraceMasks();
 

-    // get string trace masks
-    static const wxArrayString &GetTraceMasks() { return ms_aTraceMasks; }
+    // get string trace masks: note that this is MT-unsafe if other threads can
+    // call AddTraceMask() concurrently
+    static const wxArrayString& GetTraceMasks() { return ms_aTraceMasks; }
+
+    // sets the time stamp string format: this is used as strftime() format
+    // string for the log targets which add time stamps to the messages; set
+    // it to empty string to disable time stamping completely.
+    static void SetTimestamp(const wxString& ts) { ms_timestamp = ts; }

 
 

-    // sets the timestamp string: this is used as strftime() format string
-    // for the log targets which add time stamps to the messages - set it
-    // to NULL to disable time stamping completely.
-    static void SetTimestamp(const wxChar *ts) { ms_timestamp = ts; }
+    // disable time stamping of log messages
+    static void DisableTimestamp() { SetTimestamp(wxEmptyString); }

 
 
     // accessors
 
 
     // accessors


@@ -226,13 +228,13 @@ public:
     static wxTraceMask GetTraceMask() { return ms_ulTraceMask; }
 
     // is this trace mask in the list?
     static wxTraceMask GetTraceMask() { return ms_ulTraceMask; }
 
     // is this trace mask in the list?

-    static bool IsAllowedTraceMask(const wxChar *mask);
+    static bool IsAllowedTraceMask(const wxString& mask);

 
     // return the current loglevel limit
     static wxLogLevel GetLogLevel() { return ms_logLevel; }
 
     // get the current timestamp format string (may be NULL)
 
     // return the current loglevel limit
     static wxLogLevel GetLogLevel() { return ms_logLevel; }
 
     // get the current timestamp format string (may be NULL)

-    static const wxChar *GetTimestamp() { return ms_timestamp; }
+    static const wxString& GetTimestamp() { return ms_timestamp; }

 
 
     // helpers
 
 
     // helpers


@@ -242,27 +244,87 @@ public:
     static void TimeStamp(wxString *str);
 
     // make dtor virtual for all derived classes
     static void TimeStamp(wxString *str);
 
     // make dtor virtual for all derived classes

-    virtual ~wxLog() { }
+    virtual ~wxLog();

 
 
     // this method exists for backwards compatibility only, don't use
     bool HasPendingMessages() const { return true; }
 
 
 
     // this method exists for backwards compatibility only, don't use
     bool HasPendingMessages() const { return true; }
 

+#if WXWIN_COMPATIBILITY_2_6
+    // this function doesn't do anything any more, don't call it
+    wxDEPRECATED( static wxChar *SetLogBuffer(wxChar *buf, size_t size = 0) );
+#endif
+

 protected:
     // the logging functions that can be overriden
 
     // default DoLog() prepends the time stamp and a prefix corresponding
     // to the message to szString and then passes it to DoLogString()
 protected:
     // the logging functions that can be overriden
 
     // default DoLog() prepends the time stamp and a prefix corresponding
     // to the message to szString and then passes it to DoLogString()

-    virtual void DoLog(wxLogLevel level, const wxChar *szString, time_t t);
+    virtual void DoLog(wxLogLevel level, const wxString& szString, time_t t);
+#if WXWIN_COMPATIBILITY_2_8
+    // these shouldn't be used by new code
+    wxDEPRECATED_BUT_USED_INTERNALLY(
+        virtual void DoLog(wxLogLevel level, const char *szString, time_t t)
+    );
+
+    wxDEPRECATED_BUT_USED_INTERNALLY(
+        virtual void DoLog(wxLogLevel level, const wchar_t *wzString, time_t t)
+    );
+#endif // WXWIN_COMPATIBILITY_2_8
+
+    void LogString(const wxString& szString, time_t t)
+        { DoLogString(szString, t); }

 
     // default DoLogString does nothing but is not pure virtual because if
     // you override DoLog() you might not need it at all
 
     // default DoLogString does nothing but is not pure virtual because if
     // you override DoLog() you might not need it at all

-    virtual void DoLogString(const wxChar *szString, time_t t);
+    virtual void DoLogString(const wxString& szString, time_t t);
+#if WXWIN_COMPATIBILITY_2_8
+    // these shouldn't be used by new code
+    virtual void DoLogString(const char *WXUNUSED(szString),
+                             time_t WXUNUSED(t)) {}
+    virtual void DoLogString(const wchar_t *WXUNUSED(szString),
+                             time_t WXUNUSED(t)) {}
+#endif // WXWIN_COMPATIBILITY_2_8
+
+    // this macro should be used in the derived classes to avoid warnings about
+    // hiding the other DoLog() overloads when overriding DoLog(wxString) --
+    // but don't use it with MSVC which doesn't give this warning but does give
+    // warning when a deprecated function is overridden
+#if WXWIN_COMPATIBILITY_2_8 && !defined(__VISUALC__)
+    #define wxSUPPRESS_DOLOG_HIDE_WARNING()                                   \
+        virtual void DoLog(wxLogLevel, const char *, time_t) { }              \
+        virtual void DoLog(wxLogLevel, const wchar_t *, time_t) { }
+
+    #define wxSUPPRESS_DOLOGSTRING_HIDE_WARNING()                             \
+        virtual void DoLogString(const char *, time_t) { }                    \
+        virtual void DoLogString(const wchar_t *, time_t) { }
+#else
+    #define wxSUPPRESS_DOLOG_HIDE_WARNING()
+    #define wxSUPPRESS_DOLOGSTRING_HIDE_WARNING()
+#endif
+
+    // log a message indicating the number of times the previous message was
+    // repeated if ms_prevCounter > 0, does nothing otherwise; return the old
+    // value of ms_prevCounter
+    unsigned LogLastRepeatIfNeeded();

 
 private:
 
 private:

+    // implement of LogLastRepeatIfNeeded(): it assumes that the
+    // caller had already locked ms_prevCS
+    unsigned LogLastRepeatIfNeededUnlocked();
+

     // static variables
     // ----------------
 
     // static variables
     // ----------------
 

+    // if true, don't log the same message multiple times, only log it once
+    // with the number of times it was repeated
+    static bool        ms_bRepetCounting;
+
+    static wxString    ms_prevString;   // previous message that was logged
+    static unsigned    ms_prevCounter;  // how many times it was repeated
+    static time_t      ms_prevTimeStamp;// timestamp of the previous message
+    static wxLogLevel  ms_prevLevel;    // level of the previous message
+

     static wxLog      *ms_pLogger;      // currently active log sink
     static bool        ms_doLog;        // false => all logging disabled
     static bool        ms_bAutoCreate;  // create new log targets on demand?
     static wxLog      *ms_pLogger;      // currently active log sink
     static bool        ms_doLog;        // false => all logging disabled
     static bool        ms_bAutoCreate;  // create new log targets on demand?


@@ -274,7 +336,7 @@ private:
 
     // format string for strftime(), if NULL, time stamping log messages is
     // disabled
 
     // format string for strftime(), if NULL, time stamping log messages is
     // disabled

-    static const wxChar *ms_timestamp;
+    static wxString    ms_timestamp;

 
     static wxTraceMask ms_ulTraceMask;   // controls wxLogTrace behaviour
     static wxArrayString ms_aTraceMasks; // more powerful filter for wxLogTrace
 
     static wxTraceMask ms_ulTraceMask;   // controls wxLogTrace behaviour
     static wxArrayString ms_aTraceMasks; // more powerful filter for wxLogTrace


@@ -284,8 +346,6 @@ private:
 // "trivial" derivations of wxLog
 // ----------------------------------------------------------------------------
 
 // "trivial" derivations of wxLog
 // ----------------------------------------------------------------------------
 

-#if wxABI_VERSION > 20601
-

 // log everything to a buffer
 class WXDLLIMPEXP_BASE wxLogBuffer : public wxLog
 {
 // log everything to a buffer
 class WXDLLIMPEXP_BASE wxLogBuffer : public wxLog
 {


@@ -300,8 +360,11 @@ public:
     virtual void Flush();
 
 protected:
     virtual void Flush();
 
 protected:

-    virtual void DoLog(wxLogLevel level, const wxChar *szString, time_t t);
-    virtual void DoLogString(const wxChar *szString, time_t t);
+    virtual void DoLog(wxLogLevel level, const wxString& szString, time_t t);
+    virtual void DoLogString(const wxString& szString, time_t t);
+
+    wxSUPPRESS_DOLOG_HIDE_WARNING()
+    wxSUPPRESS_DOLOGSTRING_HIDE_WARNING()

 
 private:
     wxString m_str;
 
 private:
     wxString m_str;


@@ -309,7 +372,6 @@ private:
     DECLARE_NO_COPY_CLASS(wxLogBuffer)
 };
 
     DECLARE_NO_COPY_CLASS(wxLogBuffer)
 };
 

-#endif // wxABI_VERSION

 
 // log everything to a "FILE *", stderr by default
 class WXDLLIMPEXP_BASE wxLogStderr : public wxLog
 
 // log everything to a "FILE *", stderr by default
 class WXDLLIMPEXP_BASE wxLogStderr : public wxLog


@@ -320,7 +382,9 @@ public:
 
 protected:
     // implement sink function
 
 protected:
     // implement sink function

-    virtual void DoLogString(const wxChar *szString, time_t t);
+    virtual void DoLogString(const wxString& szString, time_t t);
+
+    wxSUPPRESS_DOLOGSTRING_HIDE_WARNING()

 
     FILE *m_fp;
 
 
     FILE *m_fp;
 


@@ -338,7 +402,9 @@ public:
 
 protected:
     // implement sink function
 
 protected:
     // implement sink function

-    virtual void DoLogString(const wxChar *szString, time_t t);
+    virtual void DoLogString(const wxString& szString, time_t t);
+
+    wxSUPPRESS_DOLOGSTRING_HIDE_WARNING()

 
     // using ptr here to avoid including <iostream.h> from this file
     wxSTD ostream *m_ostr;
 
     // using ptr here to avoid including <iostream.h> from this file
     wxSTD ostream *m_ostr;


@@ -407,9 +473,14 @@ public:
     // override base class version to flush the old logger as well
     virtual void Flush();
 
     // override base class version to flush the old logger as well
     virtual void Flush();
 

+    // call to avoid destroying the old log target
+    void DetachOldLog() { m_logOld = NULL; }
+

 protected:
     // pass the chain to the old logger if needed
 protected:
     // pass the chain to the old logger if needed

-    virtual void DoLog(wxLogLevel level, const wxChar *szString, time_t t);
+    virtual void DoLog(wxLogLevel level, const wxString& szString, time_t t);
+
+    wxSUPPRESS_DOLOG_HIDE_WARNING()

 
 private:
     // the current log target
 
 private:
     // the current log target


@@ -425,13 +496,28 @@ private:
 };
 
 // a chain log target which uses itself as the new logger
 };
 
 // a chain log target which uses itself as the new logger

-class WXDLLIMPEXP_BASE wxLogPassThrough : public wxLogChain
+
+#define wxLogPassThrough wxLogInterposer
+
+class WXDLLIMPEXP_BASE wxLogInterposer : public wxLogChain

 {
 public:
 {
 public:

-    wxLogPassThrough();
+    wxLogInterposer();

 
 private:
 
 private:

-    DECLARE_NO_COPY_CLASS(wxLogPassThrough)
+    DECLARE_NO_COPY_CLASS(wxLogInterposer)
+};
+
+// a temporary interposer which doesn't destroy the old log target
+// (calls DetachOldLog)
+
+class WXDLLIMPEXP_BASE wxLogInterposerTemp : public wxLogChain
+{
+public:
+    wxLogInterposerTemp();
+
+private:
+    DECLARE_NO_COPY_CLASS(wxLogInterposerTemp)

 };
 
 #if wxUSE_GUI
 };
 
 #if wxUSE_GUI


@@ -463,32 +549,111 @@ WXDLLIMPEXP_BASE const wxChar* wxSysErrorMsg(unsigned long nErrCode = 0);
 // ----------------------------------------------------------------------------
 
 #define DECLARE_LOG_FUNCTION(level)                                         \
 // ----------------------------------------------------------------------------
 
 #define DECLARE_LOG_FUNCTION(level)                                         \

-extern void WXDLLIMPEXP_BASE wxVLog##level(const wxChar *szFormat,          \
-                                           va_list argptr);                 \
-extern void WXDLLIMPEXP_BASE wxLog##level(const wxChar *szFormat,           \
-                                          ...) ATTRIBUTE_PRINTF_1
+    extern void WXDLLIMPEXP_BASE                                            \
+    wxDoLog##level##Wchar(const wxChar *format, ...);                       \
+    extern void WXDLLIMPEXP_BASE                                            \
+    wxDoLog##level##Utf8(const char *format, ...);                          \
+    WX_DEFINE_VARARG_FUNC_VOID(wxLog##level,                                \
+                               1, (const wxFormatString&),                  \
+                               wxDoLog##level##Wchar, wxDoLog##level##Utf8) \
+    DECLARE_LOG_FUNCTION_WATCOM(level)                                      \
+    extern void WXDLLIMPEXP_BASE wxVLog##level(const wxString& format,      \
+                                               va_list argptr)
+
+#ifdef __WATCOMC__
+    // workaround for http://bugzilla.openwatcom.org/show_bug.cgi?id=351;
+    // can't use WX_WATCOM_ONLY_CODE here because the macro would expand to
+    // something too big for Borland C++ to handle
+    #define DECLARE_LOG_FUNCTION_WATCOM(level)                              \
+        WX_VARARG_WATCOM_WORKAROUND(void, wxLog##level,                     \
+                                   1, (const wxString&),                    \
+                                   (wxFormatString(f1)))                    \
+        WX_VARARG_WATCOM_WORKAROUND(void, wxLog##level,                     \
+                                   1, (const wxCStrData&),                  \
+                                   (wxFormatString(f1)))                    \
+        WX_VARARG_WATCOM_WORKAROUND(void, wxLog##level,                     \
+                                   1, (const char*),                        \
+                                   (wxFormatString(f1)))                    \
+        WX_VARARG_WATCOM_WORKAROUND(void, wxLog##level,                     \
+                                   1, (const wchar_t*),                     \
+                                   (wxFormatString(f1)))
+#else
+    #define DECLARE_LOG_FUNCTION_WATCOM(level)
+#endif
+
+

 #define DECLARE_LOG_FUNCTION2_EXP(level, argclass, arg, expdecl)            \
 #define DECLARE_LOG_FUNCTION2_EXP(level, argclass, arg, expdecl)            \

-extern void expdecl wxVLog##level(argclass arg,                             \
-                                  const wxChar *szFormat,                   \
-                                  va_list argptr);                          \
-extern void expdecl wxLog##level(argclass arg,                              \
-                                 const wxChar *szFormat,                    \
-                                 ...) ATTRIBUTE_PRINTF_2
+    extern void expdecl wxDoLog##level##Wchar(argclass arg,                 \
+                                              const wxChar *format, ...);   \
+    extern void expdecl wxDoLog##level##Utf8(argclass arg,                  \
+                                             const char *format, ...);      \
+    WX_DEFINE_VARARG_FUNC_VOID(wxLog##level,                                \
+                               2, (argclass, const wxFormatString&),        \
+                               wxDoLog##level##Wchar, wxDoLog##level##Utf8) \
+    DECLARE_LOG_FUNCTION2_EXP_WATCOM(level, argclass, arg, expdecl)         \
+    extern void expdecl wxVLog##level(argclass arg,                         \
+                                      const wxString& format,               \
+                                      va_list argptr)
+
+#ifdef __WATCOMC__
+    // workaround for http://bugzilla.openwatcom.org/show_bug.cgi?id=351;
+    // can't use WX_WATCOM_ONLY_CODE here because the macro would expand to
+    // something too big for Borland C++ to handle
+    #define DECLARE_LOG_FUNCTION2_EXP_WATCOM(level, argclass, arg, expdecl) \
+        WX_VARARG_WATCOM_WORKAROUND(void, wxLog##level,                     \
+                                   2, (argclass, const wxString&),          \
+                                   (f1, wxFormatString(f2)))                \
+        WX_VARARG_WATCOM_WORKAROUND(void, wxLog##level,                     \
+                                   2, (argclass, const wxCStrData&),        \
+                                   (f1, wxFormatString(f2)))                \
+        WX_VARARG_WATCOM_WORKAROUND(void, wxLog##level,                     \
+                                   2, (argclass, const char*),              \
+                                   (f1, wxFormatString(f2)))                \
+        WX_VARARG_WATCOM_WORKAROUND(void, wxLog##level,                     \
+                                   2, (argclass, const wchar_t*),           \
+                                   (f1, wxFormatString(f2)))
+#else
+    #define DECLARE_LOG_FUNCTION2_EXP_WATCOM(level, argclass, arg, expdecl)
+#endif
+
+

 #else // !wxUSE_LOG
 
 #else // !wxUSE_LOG
 

+#ifdef __WATCOMC__
+    // workaround for http://bugzilla.openwatcom.org/show_bug.cgi?id=351
+    #define WX_WATCOM_ONLY_CODE( x )  x
+#else
+    #define WX_WATCOM_ONLY_CODE( x )
+#endif
+
+#if defined(__WATCOMC__) || defined(__MINGW32__)
+    // Mingw has similar problem with wxLogSysError:
+    #define WX_WATCOM_OR_MINGW_ONLY_CODE( x )  x
+#else
+    #define WX_WATCOM_OR_MINGW_ONLY_CODE( x )
+#endif
+

 // log functions do nothing at all
 #define DECLARE_LOG_FUNCTION(level)                                         \
 // log functions do nothing at all
 #define DECLARE_LOG_FUNCTION(level)                                         \

-inline void wxVLog##level(const wxChar *WXUNUSED(szFormat),                 \
-                          va_list WXUNUSED(argptr)) { }                     \
-inline void wxLog##level(const wxChar *WXUNUSED(szFormat),                  \
-                         ...) { }
+    WX_DEFINE_VARARG_FUNC_NOP(wxLog##level, 1, (const wxString&))           \
+    WX_WATCOM_ONLY_CODE(                                                    \
+        WX_DEFINE_VARARG_FUNC_NOP(wxLog##level, 1, (const char*))           \
+        WX_DEFINE_VARARG_FUNC_NOP(wxLog##level, 1, (const wchar_t*))        \
+        WX_DEFINE_VARARG_FUNC_NOP(wxLog##level, 1, (const wxCStrData&))     \
+    )                                                                       \
+    inline void wxVLog##level(const wxString& WXUNUSED(format),             \
+                              va_list WXUNUSED(argptr)) { }                 \
+

 #define DECLARE_LOG_FUNCTION2_EXP(level, argclass, arg, expdecl)            \
 #define DECLARE_LOG_FUNCTION2_EXP(level, argclass, arg, expdecl)            \

-inline void wxVLog##level(argclass WXUNUSED(arg),                           \
-                          const wxChar *WXUNUSED(szFormat),                 \
-                          va_list WXUNUSED(argptr)) {}                      \
-inline void wxLog##level(argclass WXUNUSED(arg),                            \
-                         const wxChar *WXUNUSED(szFormat),                  \
-                         ...) { }
+    WX_DEFINE_VARARG_FUNC_NOP(wxLog##level, 2, (argclass, const wxString&)) \
+    WX_WATCOM_OR_MINGW_ONLY_CODE(                                           \
+        WX_DEFINE_VARARG_FUNC_NOP(wxLog##level, 2, (argclass, const char*)) \
+        WX_DEFINE_VARARG_FUNC_NOP(wxLog##level, 2, (argclass, const wchar_t*)) \
+        WX_DEFINE_VARARG_FUNC_NOP(wxLog##level, 2, (argclass, const wxCStrData&)) \
+    )                                                                       \
+    inline void wxVLog##level(argclass WXUNUSED(arg),                       \
+                              const wxString& WXUNUSED(format),             \
+                              va_list WXUNUSED(argptr)) {}

 
 // Empty Class to fake wxLogNull
 class WXDLLIMPEXP_BASE wxLogNull
 
 // Empty Class to fake wxLogNull
 class WXDLLIMPEXP_BASE wxLogNull


@@ -505,9 +670,16 @@ public:
 #define wxTRACE_OleCalls wxEmptyString // OLE interface calls
 
 #endif // wxUSE_LOG/!wxUSE_LOG
 #define wxTRACE_OleCalls wxEmptyString // OLE interface calls
 
 #endif // wxUSE_LOG/!wxUSE_LOG

+

 #define DECLARE_LOG_FUNCTION2(level, argclass, arg)                         \
     DECLARE_LOG_FUNCTION2_EXP(level, argclass, arg, WXDLLIMPEXP_BASE)
 
 #define DECLARE_LOG_FUNCTION2(level, argclass, arg)                         \
     DECLARE_LOG_FUNCTION2_EXP(level, argclass, arg, WXDLLIMPEXP_BASE)
 

+// VC6 produces a warning if we a macro expanding to nothing to
+// DECLARE_LOG_FUNCTION2:
+#if defined(__VISUALC__) && __VISUALC__ < 1300
+    // "not enough actual parameters for macro 'DECLARE_LOG_FUNCTION2_EXP'"
+    #pragma warning(disable:4003)
+#endif

 
 // a generic function for all levels (level is passes as parameter)
 DECLARE_LOG_FUNCTION2(Generic, wxLogLevel, level);
 
 // a generic function for all levels (level is passes as parameter)
 DECLARE_LOG_FUNCTION2(Generic, wxLogLevel, level);


@@ -526,7 +698,7 @@ DECLARE_LOG_FUNCTION(Status);
 
 #if wxUSE_GUI
     // this one is the same as previous except that it allows to explicitly
 
 #if wxUSE_GUI
     // this one is the same as previous except that it allows to explicitly

-    class WXDLLEXPORT wxFrame;
+    class WXDLLIMPEXP_FWD_CORE wxFrame;

     // specify the frame to which the output should go
     DECLARE_LOG_FUNCTION2_EXP(Status, wxFrame *, pFrame, WXDLLIMPEXP_CORE);
 #endif // wxUSE_GUI
     // specify the frame to which the output should go
     DECLARE_LOG_FUNCTION2_EXP(Status, wxFrame *, pFrame, WXDLLIMPEXP_CORE);
 #endif // wxUSE_GUI


@@ -538,9 +710,13 @@ DECLARE_LOG_FUNCTION(SysError);
 // and another one which also takes the error code (for those broken APIs
 // that don't set the errno (like registry APIs in Win32))
 DECLARE_LOG_FUNCTION2(SysError, long, lErrCode);
 // and another one which also takes the error code (for those broken APIs
 // that don't set the errno (like registry APIs in Win32))
 DECLARE_LOG_FUNCTION2(SysError, long, lErrCode);

+#ifdef __WATCOMC__
+// workaround for http://bugzilla.openwatcom.org/show_bug.cgi?id=351
+DECLARE_LOG_FUNCTION2(SysError, unsigned long, lErrCode);
+#endif

 
 // debug functions do nothing in release mode
 
 // debug functions do nothing in release mode

-#if wxUSE_LOG_DEBUG
+#if wxUSE_LOG && wxUSE_LOG_DEBUG

     DECLARE_LOG_FUNCTION(Debug);
 
     // there is no more unconditional LogTrace: it is not different from
     DECLARE_LOG_FUNCTION(Debug);
 
     // there is no more unconditional LogTrace: it is not different from


@@ -549,25 +725,68 @@ DECLARE_LOG_FUNCTION2(SysError, long, lErrCode);
 
     // this version only logs the message if the mask had been added to the
     // list of masks with AddTraceMask()
 
     // this version only logs the message if the mask had been added to the
     // list of masks with AddTraceMask()

-    DECLARE_LOG_FUNCTION2(Trace, const wxChar *, mask);
+    DECLARE_LOG_FUNCTION2(Trace, const wxString&, mask);
+#ifdef __WATCOMC__
+    // workaround for http://bugzilla.openwatcom.org/show_bug.cgi?id=351
+    DECLARE_LOG_FUNCTION2(Trace, const char*, mask);
+    DECLARE_LOG_FUNCTION2(Trace, const wchar_t*, mask);
+#endif

 
     // and this one does nothing if all of level bits are not set in
     // wxLog::GetActive()->GetTraceMask() -- it's deprecated in favour of
     // string identifiers
     DECLARE_LOG_FUNCTION2(Trace, wxTraceMask, mask);
 
     // and this one does nothing if all of level bits are not set in
     // wxLog::GetActive()->GetTraceMask() -- it's deprecated in favour of
     // string identifiers
     DECLARE_LOG_FUNCTION2(Trace, wxTraceMask, mask);

-#else   //!debug
-    // these functions do nothing in release builds
-
-    // note that leaving out "fmt" in the vararg functions provokes a warning
-    // from SGI CC: "the last argument of the varargs function is unnamed"
-    inline void wxVLogDebug(const wxChar *, va_list) { }
-    inline void wxLogDebug(const wxChar *fmt, ...) { wxUnusedVar(fmt); }
-    inline void wxVLogTrace(wxTraceMask, const wxChar *, va_list) { }
-    inline void wxLogTrace(wxTraceMask, const wxChar *fmt, ...) { wxUnusedVar(fmt); }
-    inline void wxVLogTrace(const wxChar *, const wxChar *, va_list) { }
-    inline void wxLogTrace(const wxChar *, const wxChar *fmt, ...) { wxUnusedVar(fmt); }
+#ifdef __WATCOMC__
+    // workaround for http://bugzilla.openwatcom.org/show_bug.cgi?id=351
+    DECLARE_LOG_FUNCTION2(Trace, int, mask);
+#endif
+#else   //!debug || !wxUSE_LOG
+    // these functions do nothing in release builds, but don't define them as
+    // nothing as it could result in different code structure in debug and
+    // release and this could result in trouble when these macros are used
+    // inside if/else
+    //
+    // note that making wxVLogDebug/Trace() themselves (empty inline) functions
+    // is a bad idea as some compilers are stupid enough to not inline even
+    // empty functions if their parameters are complicated enough, but by
+    // defining them as an empty inline function we ensure that even dumbest
+    // compilers optimise them away
+#ifdef __BORLANDC__
+    // but Borland gives "W8019: Code has no effect" for wxLogNop() so we need
+    // to define it differently for it to avoid these warnings (same problem as
+    // with wxUnusedVar())
+    #define wxLogNop() { }
+#else
+    inline void wxLogNop() { }
+#endif
+
+    #define wxVLogDebug(fmt, valist) wxLogNop()
+    #define wxVLogTrace(mask, fmt, valist) wxLogNop()
+
+    #ifdef HAVE_VARIADIC_MACROS
+        // unlike the inline functions below, this completely removes the
+        // wxLogXXX calls from the object file:
+        #define wxLogDebug(fmt, ...) wxLogNop()
+        #define wxLogTrace(mask, fmt, ...) wxLogNop()
+    #else // !HAVE_VARIADIC_MACROS
+        //inline void wxLogDebug(const wxString& fmt, ...) {}
+        WX_DEFINE_VARARG_FUNC_NOP(wxLogDebug, 1, (const wxString&))
+        //inline void wxLogTrace(wxTraceMask, const wxString& fmt, ...) {}
+        //inline void wxLogTrace(const wxString&, const wxString& fmt, ...) {}
+        WX_DEFINE_VARARG_FUNC_NOP(wxLogTrace, 2, (wxTraceMask, const wxString&))
+        WX_DEFINE_VARARG_FUNC_NOP(wxLogTrace, 2, (const wxString&, const wxString&))
+        #ifdef __WATCOMC__
+        // workaround for http://bugzilla.openwatcom.org/show_bug.cgi?id=351
+        WX_DEFINE_VARARG_FUNC_NOP(wxLogTrace, 2, (const char*, const char*))
+        WX_DEFINE_VARARG_FUNC_NOP(wxLogTrace, 2, (const wchar_t*, const wchar_t*))
+        #endif
+    #endif // HAVE_VARIADIC_MACROS/!HAVE_VARIADIC_MACROS

 #endif // debug/!debug
 
 #endif // debug/!debug
 

+#if defined(__VISUALC__) && __VISUALC__ < 1300
+    #pragma warning(default:4003)
+#endif
+

 // wxLogFatalError helper: show the (fatal) error to the user in a safe way,
 // i.e. without using wxMessageBox() for example because it could crash
 void WXDLLIMPEXP_BASE
 // wxLogFatalError helper: show the (fatal) error to the user in a safe way,
 // i.e. without using wxMessageBox() for example because it could crash
 void WXDLLIMPEXP_BASE


@@ -583,21 +802,21 @@ wxSafeShowMessage(const wxString& title, const wxString& text);
 #ifdef __VISUALC__
     #define wxLogApiError(api, rc)                                            \
         wxLogDebug(wxT("%s(%d): '%s' failed with error 0x%08lx (%s)."),       \
 #ifdef __VISUALC__
     #define wxLogApiError(api, rc)                                            \
         wxLogDebug(wxT("%s(%d): '%s' failed with error 0x%08lx (%s)."),       \

-                   __TFILE__, __LINE__, api,                                  \
+                   __FILE__, __LINE__, api,                                   \

                    (long)rc, wxSysErrorMsg(rc))
 #else // !VC++
     #define wxLogApiError(api, rc)                                            \
         wxLogDebug(wxT("In file %s at line %d: '%s' failed with ")            \
                    wxT("error 0x%08lx (%s)."),                                \
                    (long)rc, wxSysErrorMsg(rc))
 #else // !VC++
     #define wxLogApiError(api, rc)                                            \
         wxLogDebug(wxT("In file %s at line %d: '%s' failed with ")            \
                    wxT("error 0x%08lx (%s)."),                                \

-                   __TFILE__, __LINE__, api,                                  \
+                   __FILE__, __LINE__, api,                                   \

                    (long)rc, wxSysErrorMsg(rc))
 #endif // VC++/!VC++
 
     #define wxLogLastError(api) wxLogApiError(api, wxSysErrorCode())
 
 #else   //!debug
                    (long)rc, wxSysErrorMsg(rc))
 #endif // VC++/!VC++
 
     #define wxLogLastError(api) wxLogApiError(api, wxSysErrorCode())
 
 #else   //!debug

-    inline void wxLogApiError(const wxChar *, long) { }
-    inline void wxLogLastError(const wxChar *) { }
+    #define wxLogApiError(api, err) wxLogNop()
+    #define wxLogLastError(api) wxLogNop()

 #endif  //debug/!debug
 
 // wxCocoa has additiional trace masks
 #endif  //debug/!debug
 
 // wxCocoa has additiional trace masks


@@ -605,5 +824,9 @@ wxSafeShowMessage(const wxString& title, const wxString& text);
 #include "wx/cocoa/log.h"
 #endif
 
 #include "wx/cocoa/log.h"
 #endif
 

+#ifdef WX_WATCOM_ONLY_CODE
+    #undef WX_WATCOM_ONLY_CODE
+#endif
+

 #endif  // _WX_LOG_H_
 
 #endif  // _WX_LOG_H_