Applied patch, fixes #12090: wxGTK cursor handling revamp

[wxWidgets.git] / src / common / string.cpp

diff --git a/src/common/string.cpp b/src/common/string.cpp
index 9e9ba528fcbd6b11bd7c64154fa70179ecba8563..f3e8c0b2605001575d1cbbf725356aa4011e5ab9 100644 (file)
--- a/src/common/string.cpp
+++ b/src/common/string.cpp
@@ -57,16 +57,20 @@
     #define wxStringStrlen   wxStrlen
 #endif
 
-// ----------------------------------------------------------------------------
-// global variables
-// ----------------------------------------------------------------------------
-
+// define a function declared in wx/buffer.h here as we don't have buffer.cpp
+// and don't want to add it just because of this simple function
 namespace wxPrivate
 {
 
-static UntypedBufferData s_untypedNullData(NULL, 0);
+// wxXXXBuffer classes can be (implicitly) used during global statics
+// initialization so wrap the status UntypedBufferData variable in a function
+// to make it safe to access it even before all global statics are initialized
+UntypedBufferData *GetUntypedNullData()
+{
+    static UntypedBufferData s_untypedNullData(NULL, 0);
 
-UntypedBufferData * const untypedNullDataPtr = &s_untypedNullData;
+    return &s_untypedNullData;
+}
 
 } // namespace wxPrivate
 
@@ -1075,9 +1079,15 @@ size_t wxString::find_last_not_of(const wxOtherCharType* sz, size_t nStart,
 int wxString::CmpNoCase(const wxString& s) const
 {
 #if defined(__WXMSW__) && !wxUSE_UNICODE_UTF8
-    // prefer to use CompareString() if available as it's more efficient than
-    // doing it manual or even using wxStricmp() (see #10375)
-    switch ( ::CompareString(LOCALE_USER_DEFAULT, NORM_IGNORECASE,
+    // Prefer to use CompareString() if available as it's more efficient than
+    // doing it manually or even using wxStricmp() (see #10375)
+    //
+    // Also note that not using NORM_STRINGSORT may result in not having a
+    // strict weak ordering (e.g. s1 < s2 and s2 < s3 but s3 < s1) and so break
+    // algorithms such as std::sort that rely on it. It's also more consistent
+    // with the fall back version below.
+    switch ( ::CompareString(LOCALE_USER_DEFAULT,
+                             NORM_IGNORECASE | SORT_STRINGSORT,
                              m_impl.c_str(), m_impl.length(),
                              s.m_impl.c_str(), s.m_impl.length()) )
     {