From 0cd9bfe8dacee998429236912c831fd2472163a8 Mon Sep 17 00:00:00 2001
From: Guilhem Lavaux <lavaux@easynet.fr>
Date: Tue, 14 Jul 1998 16:35:50 +0000
Subject: [PATCH] * wxMemory*Stream link problem fix. * wxData*Stream update.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@264 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
---
 include/wx/stream.h    | 12 ++++++------
 src/common/datstrm.cpp | 36 ------------------------------------
 src/common/mstream.cpp |  8 ++++++++
 3 files changed, 14 insertions(+), 42 deletions(-)

diff --git a/include/wx/stream.h b/include/wx/stream.h
index 3fef67ff56..b2a889a9bf 100644
--- a/include/wx/stream.h
+++ b/include/wx/stream.h
@@ -43,6 +43,8 @@ class wxInputStream: virtual public wxObject {
 
   virtual bool Eof() const = 0;
   virtual size_t LastRead() const = 0;
+
+  wxInputStream& operator>>(wxOutputStream& out) { return Read(out); }
 };
 
 class wxOutputStream: virtual public wxObject {
@@ -63,12 +65,6 @@ class wxOutputStream: virtual public wxObject {
   virtual void Sync() {}
 };
 
-class wxStream: virtual public wxInputStream, virtual public wxOutputStream {
- public:
-  wxStream() {}
-  virtual ~wxStream() { }
-};
-
 /*
  * "Filter" streams
  */
@@ -83,6 +79,8 @@ class wxFilterInputStream: public wxInputStream {
      { return m_parent_i_stream->Read(buffer, size); }
   virtual off_t SeekI(off_t pos, wxSeekMode mode = wxFromStart)
      { return m_parent_i_stream->SeekI(pos, mode); }
+  virtual off_t TellI() const
+     { return m_parent_i_stream->TellI(); }
 
   virtual bool Eof() const { return m_parent_i_stream->Eof(); } 
   virtual size_t LastRead() const { return m_parent_i_stream->LastRead(); } 
@@ -101,6 +99,8 @@ class wxFilterOutputStream: public wxOutputStream {
      { return m_parent_o_stream->Write(buffer, size); }
   virtual off_t SeekO(off_t pos, wxSeekMode mode = wxFromStart)
      { return m_parent_o_stream->SeekO(pos, mode); }
+  virtual off_t TellO() const
+     { return m_parent_o_stream->TellO(); }
 
   virtual bool Bad() const { return m_parent_o_stream->Bad(); }
   virtual size_t LastWrite() const { return m_parent_o_stream->LastWrite(); }
diff --git a/src/common/datstrm.cpp b/src/common/datstrm.cpp
index 3f456cca7c..f5fdaa1bd4 100644
--- a/src/common/datstrm.cpp
+++ b/src/common/datstrm.cpp
@@ -44,9 +44,6 @@ unsigned long wxDataInputStream::Read32()
 {
   char buf[4];
 
-  if (!m_parent_i_stream)
-    return 0;
-
   Read(buf, 4);
 
   return (unsigned long)buf[0] |
@@ -59,9 +56,6 @@ unsigned short wxDataInputStream::Read16()
 {
   char buf[2];
 
-  if (!m_parent_i_stream)
-    return 0;
-
   Read(buf, 2);
 
   return (unsigned short)buf[0] |
@@ -72,9 +66,6 @@ unsigned char wxDataInputStream::Read8()
 {
   char buf;
 
-  if (!m_parent_i_stream)
-    return 0;
-
   Read(&buf, 1);
   return (unsigned char)buf;
 }
@@ -87,9 +78,6 @@ double wxDataInputStream::ReadDouble()
 #if USE_APPLE_IEEE
   char buf[10];
 
-  if (!m_parent_i_stream)
-    return 0.0;
-
   Read(buf, 10);
   return ConvertFromIeeeExtended((unsigned char *)buf);
 #else
@@ -101,9 +89,6 @@ wxString wxDataInputStream::ReadLine()
 {
   char i_strg[255];
 
-  if (!m_parent_i_stream)
-    return "";
-
   // TODO: Implement ReadLine
   return i_strg;
 }
@@ -114,9 +99,6 @@ wxString wxDataInputStream::ReadString()
   char *string;
   unsigned long len;
 
-  if (!m_parent_i_stream)
-    return "";
-
   len = Read32();
   string = new char[len+1];
 
@@ -142,9 +124,6 @@ void wxDataOutputStream::Write32(unsigned long i)
 {
   char buf[4];
 
-  if (!m_parent_o_stream)
-    return;
-
   buf[0] = i & 0xff;
   buf[1] = (i >> 8) & 0xff;
   buf[2] = (i >> 16) & 0xff;
@@ -156,9 +135,6 @@ void wxDataOutputStream::Write16(unsigned short i)
 {
   char buf[2];
 
-  if (!m_parent_o_stream)
-    return;
-
   buf[0] = i & 0xff;
   buf[1] = (i >> 8) & 0xff;
   Write(buf, 2);
@@ -166,9 +142,6 @@ void wxDataOutputStream::Write16(unsigned short i)
 
 void wxDataOutputStream::Write8(unsigned char i)
 {
-  if (!m_parent_o_stream)
-    return;
-
   Write(&i, 1);
 }
 
@@ -180,17 +153,11 @@ void wxDataOutputStream::WriteLine(const wxString& line)
   wxString tmp_string = line + '\n';
 #endif
 
-  if (!m_parent_o_stream)
-    return;
-
   Write((const char *) tmp_string, tmp_string.Length());
 }
 
 void wxDataOutputStream::WriteString(const wxString& string)
 {
-  if (!m_parent_o_stream)
-    return;
-
   Write32(string.Length());
   Write((const char *) string, string.Length());
 }
@@ -202,9 +169,6 @@ void wxDataOutputStream::WriteDouble(double d)
 {
   char buf[10];
 
-  if (!m_parent_o_stream)
-    return;
-
 #if USE_APPLE_IEEE
   ConvertToIeeeExtended(d, (unsigned char *)buf);
 #else
diff --git a/src/common/mstream.cpp b/src/common/mstream.cpp
index d37a9ddaa3..d19b9755df 100644
--- a/src/common/mstream.cpp
+++ b/src/common/mstream.cpp
@@ -75,6 +75,10 @@ wxMemoryInputStream::wxMemoryInputStream(const char *data, size_t len)
   m_iolimit = 1;
 }
 
+wxMemoryInputStream::~wxMemoryInputStream()
+{
+}
+
 wxInputStream& wxMemoryInputStream::Read(void *buffer, size_t size)
 {
   if (m_iolimit == 2) {
@@ -133,6 +137,10 @@ wxMemoryOutputStream::wxMemoryOutputStream(char *data, size_t len)
   m_iolimit = 2;
 }
 
+wxMemoryOutputStream::~wxMemoryOutputStream()
+{
+}
+
 wxOutputStream& wxMemoryOutputStream::Write(const void *buffer, size_t size)
 {
   if (m_iolimit == 1) {
-- 
2.45.2