Potential performance improvement for Arrays. A reserve() method is now

available, which helps with constant resizes of arrays with a large number
of push_backs.  For now, only the ROM launcher and debugger disassembly
really needs it.


git-svn-id: svn://svn.code.sf.net/p/stella/code/trunk@2442 8b62c5a3-ac7e-4cc8-8f21-d9a121418aba

src/common/Array.hxx

@@ -58,6 +58,13 @@ class Array
         delete [] _data;
     }
 
+    void reserve(int capacity)
+    {
+      if(capacity <= _capacity)
+        return;
+      ensureCapacity(capacity - 128);
+    }
+
     void push_back(const T& element)
     {
       ensureCapacity(_size + 1);

src/debugger/CartDebug.cxx

@@ -278,6 +278,7 @@ bool CartDebug::fillDisassemblyList(BankInfo& info, bool resolvedata, uInt16 sea
   bool found = false;
 
   myDisassembly.list.clear();
+  myDisassembly.list.reserve(2048);
   myDisassembly.fieldwidth = 10 + myLabelLength;
   DiStella distella(*this, myDisassembly.list, info,
                     myDisLabels, myDisDirectives, resolvedata);

src/gui/LauncherDialog.cxx

@@ -345,6 +345,7 @@ void LauncherDialog::loadDirListing()
     return;
 
   FSList files;
+  files.reserve(1024);
   myCurrentNode.getChildren(files, FilesystemNode::kListAll);
 
   // Add '[..]' to indicate previous folder