X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/a0b7b493504f8ef023962f0282eeef3bca5600f9..28ac82bf0444ba664a4740393fde133058c0e3d3:/src/common/stringimpl.cpp

diff --git a/src/common/stringimpl.cpp b/src/common/stringimpl.cpp
index d626556df9..2a30e687df 100644
--- a/src/common/stringimpl.cpp
+++ b/src/common/stringimpl.cpp
@@ -77,9 +77,9 @@ const size_t wxStringImpl::npos = (size_t) -1;
 
 // FIXME-UTF8: get rid of this, have only one wxEmptyString
 #if wxUSE_UNICODE_UTF8
-extern const wxStringCharType WXDLLIMPEXP_BASE *wxEmptyStringImpl = "";
+const wxStringCharType WXDLLIMPEXP_BASE *wxEmptyStringImpl = "";
 #endif
-extern const wxChar WXDLLIMPEXP_BASE *wxEmptyString = _T("");
+const wxChar WXDLLIMPEXP_BASE *wxEmptyString = _T("");
 
 #else
 
@@ -95,10 +95,10 @@ static const struct
 // empty C style string: points to 'string data' byte of g_strEmpty
 #if wxUSE_UNICODE_UTF8
 // FIXME-UTF8: get rid of this, have only one wxEmptyString
-extern const wxStringCharType WXDLLIMPEXP_BASE *wxEmptyStringImpl = &g_strEmpty.dummy;
-extern const wxChar WXDLLIMPEXP_BASE *wxEmptyString = _T("");
+const wxStringCharType WXDLLIMPEXP_BASE *wxEmptyStringImpl = &g_strEmpty.dummy;
+const wxChar WXDLLIMPEXP_BASE *wxEmptyString = _T("");
 #else
-extern const wxStringCharType WXDLLIMPEXP_BASE *wxEmptyString = &g_strEmpty.dummy;
+const wxStringCharType WXDLLIMPEXP_BASE *wxEmptyString = &g_strEmpty.dummy;
 #endif
 
 #endif
@@ -111,19 +111,26 @@ extern const wxStringCharType WXDLLIMPEXP_BASE *wxEmptyString = &g_strEmpty.dumm
 // ----------------------------------------------------------------------------
 
 // this small class is used to gather statistics for performance tuning
+
+// uncomment this to enable gathering of some statistics about wxString
+// efficiency
 //#define WXSTRING_STATISTICS
+
 #ifdef  WXSTRING_STATISTICS
   class Averager
   {
   public:
     Averager(const wxStringCharType *sz) { m_sz = sz; m_nTotal = m_nCount = 0; }
    ~Averager()
-   { wxPrintf("wxString: average %s = %f\n", m_sz, ((float)m_nTotal)/m_nCount); }
+    {
+        wxPrintf("wxString %s: total = %lu, average = %f\n",
+                 m_sz, m_nTotal, ((float)m_nTotal)/m_nCount);
+    }
 
     void Add(size_t n) { m_nTotal += n; m_nCount++; }
 
   private:
-    size_t m_nCount, m_nTotal;
+    unsigned long m_nCount, m_nTotal;
     const wxStringCharType *m_sz;
   } g_averageLength("allocation size"),
     g_averageSummandLength("summand length"),
@@ -335,6 +342,8 @@ bool wxStringImpl::Alloc(size_t nLen)
   wxStringData *pData = GetStringData();
   if ( pData->nAllocLength <= nLen ) {
     if ( pData->IsEmpty() ) {
+      STATISTICS_ADD(Length, nLen);
+
       nLen += EXTRA_ALLOC;
 
       pData = (wxStringData *)