Replace zero with nullptr

samples/archive/archive.cpp

@@ -82,7 +82,7 @@ const ArchiveApp::ArchiveCommandDesc ArchiveApp::s_cmdDesc[] =
     {CMD_LIST, "l", "list"},
     {CMD_EXTRACT, "x", "extract"},
 
-    {CMD_NONE, 0, 0}
+    {CMD_NONE, nullptr, nullptr}
 };
 
 // Helper function iterating over all factories of the given type (assumed to

samples/dataview/dataview.cpp

@@ -1017,7 +1017,7 @@ void MyFrame::BuildDataViewCtrl(wxPanel* parent, unsigned int nPanel,
             tc->SetImages(images);
 
             const wxDataViewItem root =
-                tc->AppendContainer( wxDataViewItem(0), "The Root", 0 );
+                tc->AppendContainer( wxDataViewItem(nullptr), "The Root", 0 );
             tc->AppendItem( root, "Child 1", 0 );
             tc->AppendItem( root, "Child 2", 0 );
             tc->AppendItem( root, "Child 3, very long, long, long, long", 0 );

samples/dataview/mymodels.cpp

@@ -269,13 +269,13 @@ wxDataViewItem MyMusicTreeModel::GetParent( const wxDataViewItem &item ) const
 {
     // the invisible root node has no parent
     if (!item.IsOk())
-        return wxDataViewItem(0);
+        return wxDataViewItem(nullptr);
 
     MyMusicTreeModelNode *node = (MyMusicTreeModelNode*) item.GetID();
 
     // "MyMusic" also has no parent
     if (node == m_root)
-        return wxDataViewItem(0);
+        return wxDataViewItem(nullptr);
 
     return wxDataViewItem( (void*) node->GetParent() );
 }

samples/debugrpt/debugrpt.cpp

@@ -118,7 +118,7 @@ public:
 // just some functions to get a slightly deeper stack trace
 static void bar(const char *p)
 {
-    char *pc = 0;
+    char *pc = nullptr;
     *pc = *p;
 
     printf("bar: %s\n", p);
@@ -317,7 +317,7 @@ void MyFrame::OnListLoadedDLLs(wxCommandEvent& WXUNUSED(event))
             return;
 
         const wxDynamicLibraryDetails& det = loaded[sel];
-        void *addr = 0;
+        void *addr = nullptr;
         size_t len = 0;
         det.GetAddress(&addr, &len);
         wxLogMessage("Full path is \"%s\", memory range %p:%p, version \"%s\"",

samples/except/except.cpp

@@ -62,7 +62,7 @@ static void DoCrash()
 {
     wxGCC_WARNING_SUPPRESS(nonnull)
 
-    char *p = 0;
+    char *p = nullptr;
     strcpy(p, "Let's crash");
 
     wxGCC_WARNING_RESTORE(nonnull)
@@ -587,7 +587,7 @@ void MyFrame::OnShowAssertInThread(wxCommandEvent& WXUNUSED(event))
         {
             wxFAIL_MSG("Test assert in another thread.");
 
-            return 0;
+            return nullptr;
         }
     };
 

samples/opengl/cube/cube.cpp

@@ -430,7 +430,7 @@ void TestGLCanvas::OnSpinTimer(wxTimerEvent& WXUNUSED(event))
 wxString glGetwxString(GLenum name)
 {
     const GLubyte *v = glGetString(name);
-    if ( v == 0 )
+    if ( v == nullptr )
     {
         // The error is not important. It is GL_INVALID_ENUM.
         // We just want to clear the error stack.

samples/opengl/pyramid/oglpfuncs.cpp

@@ -52,7 +52,7 @@ void* MyGetGLFuncAddress(const char* fname)
 
     // Some drivers return -apart from 0-, -1, 1, 2 or 3
     if ( pret == (void*)-1 || pret == (void*)1 || pret == (void*)2 || pret == (void*)3 )
-        pret = (void*)0;
+        pret = nullptr;
 
     return pret;
 }
@@ -97,7 +97,7 @@ PFNGLVERTEXATTRIBPOINTERPROC my_glVertexAttribPointer = nullptr;
 // Retrieve the pointers
 #define GETANDTEST(type, name)                       \
     my_ ## name = (type) MyGetGLFuncAddress(#name);  \
-    if (name == 0)                                   \
+    if (name == nullptr)                                   \
         return false;
 
 bool MyInitGLPointers()

samples/opengl/pyramid/oglstuff.cpp

@@ -644,12 +644,12 @@ void myOGLTriangles::SetBuffers(myOGLShaders* theShader,
     glBindBuffer(GL_ARRAY_BUFFER, m_bufVertId);
     GLuint loc = m_triangShaders->GetAttribLoc("in_Position");
     glEnableVertexAttribArray(loc);
-    glVertexAttribPointer(loc, 3, GL_FLOAT, GL_FALSE, 0, (GLvoid *)0);
+    glVertexAttribPointer(loc, 3, GL_FLOAT, GL_FALSE, 0, nullptr);
     // Colours
     glBindBuffer(GL_ARRAY_BUFFER, m_bufColNorId);
     loc = m_triangShaders->GetAttribLoc("in_Colour");
     glEnableVertexAttribArray(loc);
-    glVertexAttribPointer(loc, 4, GL_FLOAT, GL_FALSE, 0, (GLvoid *)0);
+    glVertexAttribPointer(loc, 4, GL_FLOAT, GL_FALSE, 0, nullptr);
     // Normals. Their position in buffer starts at bufoffset
     loc = m_triangShaders->GetAttribLoc("in_Normal");
     glEnableVertexAttribArray(loc);
@@ -691,7 +691,7 @@ void myOGLTriangles::Draw(const GLfloat* unifMvp, const GLfloat* unifToVw,
     glProvokingVertex(GL_FIRST_VERTEX_CONVENTION);
 
     // Indexed drawing the triangles in strip mode, using 6 indices
-    glDrawElements(GL_TRIANGLE_STRIP, 6, GL_UNSIGNED_SHORT, (GLvoid *)0);
+    glDrawElements(GL_TRIANGLE_STRIP, 6, GL_UNSIGNED_SHORT, nullptr);
 
     MyOnGLError(myoglERR_DRAWING_TRI);
 
@@ -803,7 +803,7 @@ void myOGLString::SetStringWithVerts(myOGLShaders* theShader,
     // Vertices positions
     GLuint loc = m_stringShaders->GetAttribLoc("in_sPosition");
     glEnableVertexAttribArray(loc);
-    glVertexAttribPointer(loc, 3, GL_FLOAT, GL_FALSE, 0, (GLvoid *)0);
+    glVertexAttribPointer(loc, 3, GL_FLOAT, GL_FALSE, 0, nullptr);
     // Normals. Their position in buffer starts at bufoffset
     bufoffset = 12 * sizeof(GLfloat);
     if ( norm )

samples/scroll/scroll.cpp

@@ -207,8 +207,8 @@ private:
 
         int xScrollUnits, xOrigin;
 
-        m_owner->GetViewStart( &xOrigin, 0 );
-        m_owner->GetScrollPixelsPerUnit( &xScrollUnits, 0 );
+        m_owner->GetViewStart( &xOrigin, nullptr );
+        m_owner->GetScrollPixelsPerUnit( &xScrollUnits, nullptr );
         dc.SetDeviceOrigin( -xOrigin * xScrollUnits, 0 );
 
         dc.DrawText("Column 1", 5, 5);
@@ -242,8 +242,8 @@ private:
 
         int yScrollUnits, yOrigin;
 
-        m_owner->GetViewStart( 0, &yOrigin );
-        m_owner->GetScrollPixelsPerUnit( 0, &yScrollUnits );
+        m_owner->GetViewStart( nullptr, &yOrigin );
+        m_owner->GetScrollPixelsPerUnit( nullptr, &yScrollUnits );
         dc.SetDeviceOrigin( 0, -yOrigin * yScrollUnits );
 
         dc.DrawText("Row 1", 5, 5);

samples/sockets/baseclient.cpp

@@ -729,6 +729,6 @@ wxThread::ExitCode ThreadWorker::Entry()
     WorkerEvent e(this,etype);
     if (failed) e.setFailed();
     wxGetApp().AddPendingEvent(e);
-    return 0;
+    return nullptr;
 }
 

samples/sockets/baseserver.cpp

@@ -495,7 +495,7 @@ wxThread::ExitCode ThreadWorker::Entry()
     if (!m_socket->IsConnected())
     {
         LogWorker("ThreadWorker: not connected",wxLOG_Error);
-        return 0;
+        return nullptr;
     }
     int to_process = -1;
     if (m_socket->IsConnected())
@@ -510,7 +510,7 @@ wxThread::ExitCode ThreadWorker::Entry()
             {
                 LogWorker("ThreadWorker: Read error",wxLOG_Error);
                 wxGetApp().AddPendingEvent(e);
-                return 0;
+                return nullptr;
             }
             to_process -= m_socket->LastCount();
             LogWorker(wxString::Format("to_process: %d",to_process));
@@ -521,7 +521,7 @@ wxThread::ExitCode ThreadWorker::Entry()
         if (signature[0] == 0)
         {
             e.m_exit = true;
-            return 0;
+            return nullptr;
         }
 
         if (signature[0] == 0xCE)
@@ -529,7 +529,7 @@ wxThread::ExitCode ThreadWorker::Entry()
             LogWorker("This server does not support test2 from GUI client",wxLOG_Error);
             e.m_workerFailed = true;
             e.m_exit = true;
-            return 0;
+            return nullptr;
         }
         int size = signature[1] * (signature[0] == 0xBE ? 1 : 1024);
         char* buf = new char[size];
@@ -545,7 +545,7 @@ wxThread::ExitCode ThreadWorker::Entry()
             {
                 LogWorker("ThreadWorker: Read error",wxLOG_Error);
                 wxGetApp().AddPendingEvent(e);
-                return 0;
+                return nullptr;
             }
             to_process -= m_socket->LastCount();
             LogWorker(wxString::Format("ThreadWorker: %d bytes readed, %d todo",m_socket->LastCount(),to_process));
@@ -573,7 +573,7 @@ wxThread::ExitCode ThreadWorker::Entry()
     e.m_workerFailed = to_process != 0;
     m_socket->Destroy();
     wxGetApp().AddPendingEvent(e);
-    return 0;
+    return nullptr;
 }
 
 EventWorker::EventWorker(wxSocketBase* pSock)

samples/treectrl/treetest.cpp

@@ -1318,7 +1318,7 @@ void MyTreeCtrl::DoResetBrokenStateImages(const wxTreeItemId& idParent,
         SetItemState(id, state);
 
     if (ItemHasChildren(id))
-        DoResetBrokenStateImages(id, 0, state);
+        DoResetBrokenStateImages(id, nullptr, state);
 
     DoResetBrokenStateImages(idParent, cookie, state);
 }
@@ -1531,7 +1531,7 @@ void MyTreeCtrl::OnEndDrag(wxTreeEvent& event)
 {
     wxTreeItemId itemSrc = m_draggedItem,
                  itemDst = event.GetItem();
-    m_draggedItem = (wxTreeItemId)0l;
+    m_draggedItem = nullptr;
 
     // where to copy the item?
     if ( itemDst.IsOk() && !ItemHasChildren(itemDst) )

samples/treectrl/treetest.h

@@ -104,7 +104,7 @@ public:
 
     wxTreeItemId GetLastTreeITem() const;
     void GetItemsRecursively(const wxTreeItemId& idParent,
-                             wxTreeItemIdValue cookie = 0);
+                             wxTreeItemIdValue cookie = nullptr);
 
     // This function behaves differently depending on the value of size:
     //  - If it's -1, it turns off the use of images entirely.
@@ -137,7 +137,7 @@ public:
     {
         const size_t count = GetStateImageList()->GetImageCount();
         int state = count > 0 ? count - 1 : wxTREE_ITEMSTATE_NONE;
-        DoResetBrokenStateImages(GetRootItem(), 0, state);
+        DoResetBrokenStateImages(GetRootItem(), nullptr, state);
     }
 
 protected: