Qt Eclipse can not recognise some type and function!why?

[greenoaktree]

My developing platform is Qt Eclipse + CDT+MinGW+GDB+QT 4.3.3.When I write code in Eclipse,I can not see the type hierarchy and declaration of some types and functions.For example,the function delete in this line below:

delete ui.list->currentItem();

delete ui.list->currentItem();

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When I selected "delete" and right click it,choose Open declaration or Open type hierarchy,there is a warning that "Select text cannot be mapped to a symbol name" or "Cannot resolve selected text to a define type".

The project can be compiled.
Anyone know how to deal with it?

[marcel]

Delete is not an ordinary function. It is a C++ language keyword.

[greenoaktree]

Delete is not an ordinary function. It is a C++ language keyword.

Thank you!I will look up it in c++ reference