Update clistbox-class_23.cpp

jiangsheng · web-flow · commit 5543d045f8ef · 2017-12-19T12:47:36.000-06:00
the buffer required by later code would be 16 bytes in ANSI and 32 bytes in Unicode, preallocating 10 bytes is useless.
diff --git a/docs/mfc/codesnippet/CPP/clistbox-class_23.cpp b/docs/mfc/codesnippet/CPP/clistbox-class_23.cpp
@@ -1,6 +1,6 @@
    // Initialize the storage of the list box to be 256 strings with
    // about 10 characters per string, performance improvement.
-   int n = m_myListBox.InitStorage(256, 10);
+   int n = m_myListBox.InitStorage(256, 16*sizeof(TCHAR));
    ASSERT(n != LB_ERRSPACE);
 
    // Add 256 items to the list box.
@@ -9,4 +9,4 @@
    {
       str.Format(_T("item string %d"), i);
       m_myListBox.AddString( str );
-   }
+   }
