Replaced malloc/free with new/delete

 - now new/delete used everywhere except for CBotStack, which
   has to be fixed in other way
 - some segfaults should be fixed with this

5 files changed, 69 insertions, 53 deletions

diff --git a/src/CBot/CBotString.cpp b/src/CBot/CBotString.cpp
index 4795b63..b1b5fc4 100644
--- a/src/CBot/CBotString.cpp
+++ b/src/CBot/CBotString.cpp
@@ -127,7 +127,8 @@ CBotString::CBotString()
 
 CBotString::~CBotString()
 {
-    free(m_ptr);            //we can call free on null pointer as it's save
+    delete[] m_ptr;
+    m_ptr = nullptr;
 }
 
 
@@ -138,7 +139,7 @@ CBotString::CBotString(const char* p)
     m_ptr = NULL;
     if (m_lg>0)
     {
-        m_ptr = static_cast<char*>(malloc(m_lg+1));
+        m_ptr = new char[m_lg+1];
         strcpy(m_ptr, p);
     }
 }
@@ -150,7 +151,7 @@ CBotString::CBotString(const CBotString& srcString)
     m_ptr = NULL;
     if (m_lg>0)
     {
-        m_ptr = static_cast<char*>(malloc(m_lg+1));
+        m_ptr = new char[m_lg+1];
         strcpy(m_ptr, srcString.m_ptr);
     }
 }
@@ -285,12 +286,12 @@ CBotString CBotString::Mid(int start, int lg)
 
     if ( lg < 0 ) lg = m_lg - start;
 
-    char* p = static_cast<char*>(malloc(m_lg+1));
+    char* p = new char[m_lg+1];
     strcpy(p, m_ptr+start);
     p[lg] = 0;
 
     res = p;
-    free(p);
+    delete[] p;
     return res;
 }
 
@@ -314,15 +315,16 @@ void CBotString::MakeLower()
 
 bool CBotString::LoadString(unsigned int id)
 {
-    const char * str = NULL;
+    const char * str = nullptr;
     str = MapIdToString(static_cast<EID>(id));
-    if (m_ptr != NULL) free(m_ptr);
+    if (m_ptr != nullptr)
+        delete[] m_ptr;
 
     m_lg = strlen(str);
     m_ptr = NULL;
     if (m_lg > 0)
     {
-        m_ptr = static_cast<char*>(malloc(m_lg+1));
+        m_ptr = new char[m_lg+1];
         strcpy(m_ptr, str);
         return true;
     }
@@ -332,14 +334,14 @@ bool CBotString::LoadString(unsigned int id)
 
 const CBotString& CBotString::operator=(const CBotString& stringSrc)
 {
-    free(m_ptr);
-    m_ptr = NULL;
+    delete[] m_ptr;
+    m_ptr = nullptr;
 
     m_lg = stringSrc.m_lg; 
 
     if (m_lg > 0)
     {
-        m_ptr = static_cast<char*>(malloc(m_lg+1));
+        m_ptr = new char[m_lg+1];
         strcpy(m_ptr, stringSrc.m_ptr);
     }
 
@@ -355,13 +357,13 @@ CBotString operator+(const CBotString& string, const char * lpsz)
 
 const CBotString& CBotString::operator+(const CBotString& stringSrc)
 {
-    char* p = static_cast<char*>(malloc(m_lg+stringSrc.m_lg+1));
+    char* p = new char[m_lg+stringSrc.m_lg+1];
 
     if (m_ptr!=NULL) strcpy(p, m_ptr);
     char* pp = p + m_lg;
     if (stringSrc.m_ptr!=NULL) strcpy(pp, stringSrc.m_ptr);
 
-    free(m_ptr);
+    delete[] m_ptr;
     m_ptr = p;
     m_lg += stringSrc.m_lg;
 
@@ -370,11 +372,11 @@ const CBotString& CBotString::operator+(const CBotString& stringSrc)
 
 const CBotString& CBotString::operator=(const char ch)
 {
-    free(m_ptr);
+    delete[] m_ptr;
 
     m_lg = 1; 
 
-    m_ptr = static_cast<char*>(malloc(2));
+    m_ptr = new char[2];
     m_ptr[0] = ch;
     m_ptr[1] = 0;
 
@@ -383,16 +385,16 @@ const CBotString& CBotString::operator=(const char ch)
 
 const CBotString& CBotString::operator=(const char* pString)
 {
-    free(m_ptr);
-    m_ptr = NULL;
+    delete[] m_ptr;
+    m_ptr = nullptr;
 
-    if (pString != NULL)
+    if (pString != nullptr)
     {
         m_lg = strlen(pString); 
 
         if (m_lg != 0)
         {
-            m_ptr = static_cast<char*>(malloc(m_lg+1));
+            m_ptr = new char[m_lg+1];
             strcpy(m_ptr, pString);
         }
     }
@@ -403,13 +405,13 @@ const CBotString& CBotString::operator=(const char* pString)
 
 const CBotString& CBotString::operator+=(const char ch)
 {
-    char* p = static_cast<char*>(malloc(m_lg+2));
+    char* p = new char[m_lg+2];
 
-    if (m_ptr!=NULL) strcpy(p, m_ptr);
+    if (m_ptr != nullptr) strcpy(p, m_ptr);
     p[m_lg++] = ch;
     p[m_lg]   = 0;
 
-    free(m_ptr);
+    delete[] m_ptr;
 
     m_ptr = p;
 
@@ -418,7 +420,7 @@ const CBotString& CBotString::operator+=(const char ch)
 
 const CBotString& CBotString::operator+=(const CBotString& str)
 {
-    char* p = static_cast<char*>(malloc(m_lg+str.m_lg+1));
+    char* p = new char[m_lg+str.m_lg+1];
 
     strcpy(p, m_ptr);
     char* pp = p + m_lg;
@@ -426,7 +428,7 @@ const CBotString& CBotString::operator+=(const CBotString& str)
 
     m_lg = m_lg + str.m_lg;
 
-    free(m_ptr);
+    delete[] m_ptr;
 
     m_ptr = p;
 
@@ -500,8 +502,8 @@ bool CBotString::IsEmpty() const
 
 void CBotString::Empty()
 {
-    free(m_ptr);
-    m_ptr = NULL;
+    delete[] m_ptr;
+    m_ptr = nullptr;
     m_lg = 0;
 }
 
diff --git a/src/common/image.cpp b/src/common/image.cpp
index f3cfa34..ef8097e 100644
--- a/src/common/image.cpp
+++ b/src/common/image.cpp
@@ -124,14 +124,14 @@ bool PNGSaveSurface(const char *filename, SDL_Surface *surf)
     png_write_info(png_ptr, info_ptr);
     png_set_packing(png_ptr);
 
-    row_pointers = static_cast<png_bytep*>( malloc(sizeof(png_bytep)*surf->h) );
+    row_pointers = new png_bytep[surf->h];
     for (i = 0; i < surf->h; i++)
         row_pointers[i] = static_cast<png_bytep>( static_cast<Uint8 *>(surf->pixels) ) + i*surf->pitch;
     png_write_image(png_ptr, row_pointers);
     png_write_end(png_ptr, info_ptr);
 
     /* Cleaning out... */
-    free(row_pointers);
+    delete[] row_pointers;
     png_destroy_write_struct(&png_ptr, &info_ptr);
     fclose(fp);
 
diff --git a/src/object/brain.cpp b/src/object/brain.cpp
index 4ce1bf8..ef7309d 100644
--- a/src/object/brain.cpp
+++ b/src/object/brain.cpp
@@ -99,7 +99,7 @@ CBrain::CBrain(CInstanceManager* iMan, CObject* object)
     m_selScript = 0;
 
     m_bTraceRecord = false;
-    m_traceRecordBuffer = 0;
+    m_traceRecordBuffer = nullptr;
 }
 
 // Object's destructor.
@@ -111,12 +111,21 @@ CBrain::~CBrain()
     for ( i=0 ; i<BRAINMAXSCRIPT ; i++ )
     {
         delete m_script[i];
+        m_script[i] = nullptr;
     }
 
     delete m_primaryTask;
+    m_primaryTask = nullptr;
+
     delete m_secondaryTask;
+    m_secondaryTask = nullptr;
+
     delete m_studio;
-    delete m_traceRecordBuffer;
+    m_studio = nullptr;
+
+    delete[] m_traceRecordBuffer;
+    m_traceRecordBuffer = nullptr;
+
     m_iMan->DeleteInstance(CLASS_BRAIN, this);
 }
 
@@ -2791,8 +2800,8 @@ void CBrain::TraceRecordStart()
         m_traceColor = -1;
     }
 
-    delete m_traceRecordBuffer;
-    m_traceRecordBuffer = static_cast<TraceRecord*>(malloc(sizeof(TraceRecord)*MAXTRACERECORD));
+    delete[] m_traceRecordBuffer;
+    m_traceRecordBuffer = new TraceRecord[MAXTRACERECORD];
     m_traceRecordIndex = 0;
 }
 
@@ -2858,10 +2867,10 @@ void CBrain::TraceRecordStop()
     int         max, i;
     char*       buffer;
 
-    if ( m_traceRecordBuffer == 0 )  return;
+    if ( m_traceRecordBuffer == nullptr )  return;
 
     max = 10000;
-    buffer = static_cast<char*>(malloc(max));
+    buffer = new char[max];
     *buffer = 0;
     strncat(buffer, "extern void object::AutoDraw()\n{\n", max-1);
 
@@ -2892,8 +2901,8 @@ void CBrain::TraceRecordStop()
     }
     TraceRecordPut(buffer, max, lastOper, lastParam);
 
-    delete m_traceRecordBuffer;
-    m_traceRecordBuffer = 0;
+    delete[] m_traceRecordBuffer;
+    m_traceRecordBuffer = nullptr;
 
     strncat(buffer, "}\n", max-1);
     buffer[max-1] = 0;
@@ -2904,7 +2913,7 @@ void CBrain::TraceRecordStop()
         m_script[i] = new CScript(m_iMan, m_object, &m_secondaryTask);
     }
     m_script[i]->SendScript(buffer);
-    delete buffer;
+    delete[] buffer;
 }
 
 // Saves an instruction CBOT.
diff --git a/src/object/task/taskgoto.cpp b/src/object/task/taskgoto.cpp
index ce778ef..cab57f1 100644
--- a/src/object/task/taskgoto.cpp
+++ b/src/object/task/taskgoto.cpp
@@ -2119,7 +2119,7 @@ bool CTaskGoto::BitmapOpen()
     BitmapClose();
 
     m_bmSize = static_cast<int>(3200.0f/BM_DIM_STEP);
-    m_bmArray = static_cast<unsigned char*>(malloc(m_bmSize*m_bmSize/8*2));
+    m_bmArray = new unsigned char[m_bmSize*m_bmSize/8*2];
     memset(m_bmArray, 0, m_bmSize*m_bmSize/8*2);
 
     m_bmOffset = m_bmSize/2;
@@ -2137,7 +2137,7 @@ bool CTaskGoto::BitmapOpen()
 
 bool CTaskGoto::BitmapClose()
 {
-    free(m_bmArray);
+    delete[] m_bmArray;
     m_bmArray = 0;
     return true;
 }
diff --git a/src/script/script.cpp b/src/script/script.cpp
index 8471df5..57d638e 100644
--- a/src/script/script.cpp
+++ b/src/script/script.cpp
@@ -1571,7 +1571,7 @@ bool CScript::rGrab(CBotVar* var, CBotVar* result, int& exception, void* user)
     if ( script->m_primaryTask == 0 )  // no task in progress?
     {
         script->m_primaryTask = new CTaskManager(script->m_iMan, script->m_object);
-        if ( var == 0 )  
+        if ( var == 0 )
         {
             type = TMA_FFRONT;
         }
@@ -2753,9 +2753,14 @@ void CScript::InitFonctions()
 CScript::~CScript()
 {
     delete m_botProg;
+    m_botProg = nullptr;
+
     delete m_primaryTask;
-    delete m_script;
-    m_script = 0;
+    m_primaryTask = nullptr;
+
+    delete[] m_script;
+    m_script = nullptr;
+
     m_len = 0;
 
     m_iMan->DeleteInstance(CLASS_SCRIPT, this);
@@ -2766,7 +2771,7 @@ CScript::~CScript()
 
 void CScript::PutScript(Ui::CEdit* edit, const char* name)
 {
-    if ( m_script == 0 )
+    if ( m_script == nullptr )
     {
         New(edit, name);
     }
@@ -2785,11 +2790,11 @@ bool CScript::GetScript(Ui::CEdit* edit)
 {
     int     len;
 
-    delete m_script;
-    m_script = 0;
+    delete[] m_script;
+    m_script = nullptr;
 
     len = edit->GetTextLength();
-    m_script = static_cast<char*>(malloc(sizeof(char)*(len+1)));
+    m_script = new char[len+1];
 
     edit->GetText(m_script, len+1);
     edit->GetCursor(m_cursor2, m_cursor1);
@@ -2997,7 +3002,7 @@ void CScript::SetStepMode(bool bStep)
 bool CScript::Run()
 {
     if( m_botProg == 0 )  return false;
-    if ( m_script == 0 || m_len == 0 )  return false;
+    if ( m_script == nullptr || m_len == 0 )  return false;
 
     if ( !m_botProg->Start(m_title) )  return false;
 
@@ -3475,9 +3480,9 @@ bool CScript::IntroduceVirus()
     start = found[i+1];
     i     = found[i+0];
 
-    newScript = static_cast<char*>(malloc(sizeof(char)*(m_len+strlen(names[i+1])+1)));
+    newScript = new char[m_len+strlen(names[i+1])+1];
     strcpy(newScript, m_script);
-    delete m_script;
+    delete[] m_script;
     m_script = newScript;
 
     DeleteToken(m_script, start, strlen(names[i]));
@@ -3638,7 +3643,7 @@ void CScript::New(Ui::CEdit* edit, const char* name)
 bool CScript::SendScript(char* text)
 {
     m_len = strlen(text);
-    m_script = static_cast<char*>(malloc(sizeof(char)*(m_len+1)));
+    m_script = new char[m_len+1];
     strcpy(m_script, text);
     if ( !CheckToken() )  return false;
     if ( !Compile() )  return false;
@@ -3669,8 +3674,8 @@ bool CScript::ReadScript(const char* filename)
     if ( file == NULL )  return false;
     fclose(file);
 
-    delete m_script;
-    m_script = 0;
+    delete[] m_script;
+    m_script = nullptr;
 
     edit = m_interface->CreateEdit(Math::Point(0.0f, 0.0f), Math::Point(0.0f, 0.0f), 0, EVENT_EDIT9);
     edit->SetMaxChar(Ui::EDITSTUDIOMAX);
@@ -3697,7 +3702,7 @@ bool CScript::WriteScript(const char* filename)
         name = filename;
     }
 
-    if ( m_script == 0 )
+    if ( m_script == nullptr )
     {
         remove(filename);
         return false;