1. suppressed some messages from HasEntry()/HasKeys()

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

diff --git a/include/wx/string.h b/include/wx/string.h
index 645e8c49c18a4da7f49e873682971682c506f59d..474f23d3b6e3f23d5836480284d1c3c7e73139e3 100644 (file)
--- a/include/wx/string.h
+++ b/include/wx/string.h
@@ -257,14 +257,23 @@ public:
   size_t Len() const { return GetStringData()->nDataLength; }
     /// string contains any characters?
   bool IsEmpty() const { return Len() == 0; }
-    /// reinitialize string (and free data!)
+    /// empty string contents
   void Empty()
   {
-    if ( GetStringData()->nDataLength != 0 )
+    if ( !IsEmpty() )
       Reinit();
 
+    // should be empty
     wxASSERT( GetStringData()->nDataLength == 0 );
-    wxASSERT( GetStringData()->nAllocLength == 0 );
+  }
+    /// empty the string and free memory
+  void Clear()
+  {
+    if ( !GetStringData()->IsEmpty() )
+      Reinit();
+
+    wxASSERT( GetStringData()->nDataLength == 0 );  // should be empty
+    wxASSERT( GetStringData()->nAllocLength == 0 ); // and not own any memory
   }
 
     /// Is an ascii value
@@ -294,9 +303,12 @@ public:
     char& Last()
       { wxASSERT( !IsEmpty() ); CopyBeforeWrite(); return m_pchData[Len()-1]; }
 
+    // on alpha-linux this gives overload problems:
+#if ! defined(__ALPHA__)
     /// operator version of GetChar
     char  operator[](size_t n) const
       { ASSERT_VALID_INDEX( n ); return m_pchData[n]; }
+#endif
     /// operator version of GetChar
     char  operator[](int n) const
       { ASSERT_VALID_INDEX( n ); return m_pchData[n]; }
@@ -360,18 +372,28 @@ public:
     /** @name return resulting string */
     //@{
       ///
-  friend wxString operator+(const wxString& string1,  const wxString& string2);
+  friend wxString WXDLLEXPORT operator+(const wxString& string1,  const wxString& string2);
       ///
-  friend wxString operator+(const wxString& string, char ch);
+  friend wxString WXDLLEXPORT operator+(const wxString& string, char ch);
       ///
-  friend wxString operator+(char ch, const wxString& string);
+  friend wxString WXDLLEXPORT operator+(char ch, const wxString& string);
       ///
-  friend wxString operator+(const wxString& string, const char *psz);
+  friend wxString WXDLLEXPORT operator+(const wxString& string, const char *psz);
       ///
-  friend wxString operator+(const char *psz, const wxString& string);
+  friend wxString WXDLLEXPORT operator+(const char *psz, const wxString& string);
     //@}
   //@}
 
+  /** @name stream-like functions */
+  //@{
+        /// insert an int into string
+    wxString& operator<<(int i);
+        /// insert a float into string
+    wxString& operator<<(float f);
+        /// insert a double into string
+    wxString& operator<<(double d);
+  //@}
+  
   /** @name string comparison */
   //@{
     /**
@@ -686,7 +708,7 @@ public:
           size_t find(char ch, size_t nStart = 0) const;
 
           // wxWin compatibility
-          inline bool Contains(const wxString& str) { return Find(str) != -1; }
+          inline bool Contains(const wxString& str) const { return Find(str) != -1; }
 
         //@}
 
@@ -909,6 +931,11 @@ inline bool operator>=(const wxString& s1, const char  * s2) { return s1.Cmp(s2)
 ///
 inline bool operator>=(const char  * s1, const wxString& s2) { return s2.Cmp(s1) <= 0; }
 //@}
+wxString WXDLLEXPORT operator+(const wxString& string1,  const wxString& string2);
+wxString WXDLLEXPORT operator+(const wxString& string, char ch);
+wxString WXDLLEXPORT operator+(char ch, const wxString& string);
+wxString WXDLLEXPORT operator+(const wxString& string, const char *psz);
+wxString WXDLLEXPORT operator+(const char *psz, const wxString& string);
 
 // ---------------------------------------------------------------------------
 /** @name Global functions complementing standard C string library
@@ -919,9 +946,20 @@ inline bool operator>=(const char  * s1, const wxString& s2) { return s2.Cmp(s1)
 #ifdef  STD_STRING_COMPATIBILITY
 
 // fwd decl
-class WXDLLEXPORT istream;
+// Known not to work with wxUSE_IOSTREAMH set to 0, so
+// replacing with includes (on advice of ungod@pasdex.com.au)
+// class WXDLLEXPORT istream;
+#if wxUSE_IOSTREAMH
+// N.B. BC++ doesn't have istream.h, ostream.h
+#include <iostream.h>
+#else
+#include <istream>
+#  ifdef _MSC_VER
+      using namespace std;
+#  endif
+#endif
 
-istream& WXDLLEXPORT operator>>(istream& is, wxString& str);
+WXDLLEXPORT istream& operator>>(istream& is, wxString& str);
 
 #endif  //std::string compatibility