+- WXWIN_COMPATIBILITY_2_4 doesn't exist any more, please update your code if
+ you still relied on features deprecated since version 2.4
+
+- Return type of wxString::operator[] and wxString::iterator::operator* is no
+ longer wxChar (i.e. char or wchar_t), but wxUniChar. This is not a problem
+ in vast majority of cases because of conversion operators, but it can break
+ code that depends on the result being wxChar.
+
+- The value returned by wxString::c_str() cannot be casted to non-const char*
+ or wchar_t* anymore. The solution is to use newly added wxString methods
+ char_str() (which returns a buffer convertible to char*) or wchar_str()
+ (which returns a buffer convertible to wchar_t*). These methods are
+ available in wxWidgets 2.8 series beginning with 2.8.4 as well.
+
+- The value returned by wxString::operator[] or wxString::iterator cannot be
+ used in switch statements anymore, because it's a class instance. Code like
+ this won't compile:
+ switch (str[i]) { ... }
+ and has to be replaced with this:
+ switch (str[i].GetValue()) { ... }
+
+- Return type of wxString::c_str() is now wxCStrData struct and not
+ const wxChar*. wxCStrData is implicitly convertible to const char* and
+ const wchar_t*, so this only presents a problem if the compiler cannot
+ convert the type. In particular, Borland C++ and DigitalMars compilers
+ don't correctly convert operator?: operands to the same type and fail with
+ compilation error instead. This can be worked around by explicitly casting
+ to const wxChar*:
+ wxLogError(_("error: %s"), !err.empty() ? (const wxChar*)err.c_str() : "")
+
+- DigitalMars compiler has a bug that prevents it from using
+ wxUniChar::operator bool in conditions and it erroneously reports type
+ conversion ambiguity in expressions such as this:
+ for ( wxString::const_iterator p = s.begin(); *p; ++p )
+ This can be worked around by explicitly casting to bool:
+ for ( wxString::const_iterator p = s.begin(); (bool)*p; ++p )
+
projects / wxWidgets.git / blobdiff