added attribute printf to perform printf format checks (GNU C)

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

diff --git a/include/wx/defs.h b/include/wx/defs.h
index 80b4fbb8458a8e219deb9edb90ac2357df7a9743..ea7a3722aee51866e9b602950186285ec83f2741 100644 (file)
--- a/include/wx/defs.h
+++ b/include/wx/defs.h
@@ -176,11 +176,23 @@
 
 #ifdef __cplusplus
     // define boolean constants: don't use true/false here as not all compilers
-    // support them
-    #undef TRUE
-    #undef FALSE
-    #define TRUE  ((bool)1)
-    #define FALSE ((bool)0)
+    // support them but also redefine TRUE which could have been defined as 1
+    // by previous headers: this would be incorrect as our TRUE is supposed to
+    // be of type bool, just like true, not int
+    //
+    // however if the user code absolutely needs TRUE to be defined in its own
+    // way, it can predefine WX_TRUE_DEFINED to prevent the redefinition here
+    #ifdef TRUE
+        #ifndef WX_TRUE_DEFINED
+            #undef TRUE
+            #undef FALSE
+        #endif
+    #endif
+
+    #ifndef TRUE
+        #define TRUE  ((bool)1)
+        #define FALSE ((bool)0)
+    #endif
 #else // !__cplusplus
     // the definitions above don't work for C sources
     #ifndef TRUE
@@ -415,6 +427,27 @@ class WXDLLEXPORT wxEvent;
 typedef void (*wxFunction) (wxObject&, wxEvent&);
 #endif
 
+// Printf-like attribute definitions to obtain warnings with GNU C/C++
+#if defined(__GNUC__)
+#  ifndef ATTRIBUTE_PRINTF
+#    define ATTRIBUTE_PRINTF(m, n) __attribute__ ((__format__ (__printf__, m, n)))
+#    define ATTRIBUTE_PRINTF_1 ATTRIBUTE_PRINTF(1, 2)
+#    define ATTRIBUTE_PRINTF_2 ATTRIBUTE_PRINTF(2, 3)
+#    define ATTRIBUTE_PRINTF_3 ATTRIBUTE_PRINTF(3, 4)
+#    define ATTRIBUTE_PRINTF_4 ATTRIBUTE_PRINTF(4, 5)
+#    define ATTRIBUTE_PRINTF_5 ATTRIBUTE_PRINTF(5, 6)
+#  endif /* ATTRIBUTE_PRINTF */
+#else
+#  ifndef ATTRIBUTE_PRINTF
+#    define ATTRIBUTE_PRINTF
+#    define ATTRIBUTE_PRINTF_1
+#    define ATTRIBUTE_PRINTF_2
+#    define ATTRIBUTE_PRINTF_3
+#    define ATTRIBUTE_PRINTF_4
+#    define ATTRIBUTE_PRINTF_5
+#  endif /* ATTRIBUTE_PRINTF */
+#endif
+
 // ----------------------------------------------------------------------------
 // OS mnemonics -- Identify the running OS (useful for Windows)
 // ----------------------------------------------------------------------------
@@ -934,11 +967,11 @@ enum wxBorder
 #define wxDIALOG_NO_PARENT      0x0001  // Don't make owned by apps top window
 #define wxFRAME_NO_TASKBAR      0x0002  // No taskbar button (MSW only)
 #define wxFRAME_TOOL_WINDOW     0x0004  // No taskbar button, no system menu
+#define wxFRAME_FLOAT_ON_PARENT 0x0008  // Always above its parent
 
 // deprecated versions defined for compatibility reasons
 #define wxRESIZE_BOX            wxMAXIMIZE_BOX
 #define wxTHICK_FRAME           wxRESIZE_BORDER
-#define wxFRAME_FLOAT_ON_PARENT wxFRAME_TOOL_WINDOW
 
 // obsolete styles, unused any more
 #define wxDIALOG_MODAL          0x0020  // free flag value 0x0020
@@ -1463,6 +1496,7 @@ enum wxDataFormatId
     wxDF_FILENAME =         15, /* CF_HDROP */
     wxDF_LOCALE =           16,
     wxDF_PRIVATE =          20,
+    wxDF_HTML =             30, /* Note: does not correspond to CF_ constant */
     wxDF_MAX
 };