Because the term null cell is no longer commonly used, they are often referred to as natural killer cells or killer cells.

The language definition states that for each pointer type, there is a special value--the ``null pointer''--which is distinguishable from all other pointer values and which is ``guaranteed to compare unequal to a pointer to any object or function.'' That is, a null pointer points definitively nowhere; it is not the address of any object or function.

The address-of operator does return a null pointer when it fails, and this is a typical use of null pointers: as a ``special'' pointer value with some other meaning, usually ``not allocated'' or ``not pointing anywhere yet.'') A null pointer is conceptually different from an uninitialized pointer.

important; } .ezoic-wrapper-column-2 { max-width: 350px !

important; } .ezoic-wrapper-content { max-width: 750px ! important; } .ezoic-top-partition { max-width: none !

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Null cells make up a small proportion of the lymphocytes that can be found in an organism.

When using Visual C++, remember that if you use nullptr with native C/C++ code and then compile with the /clr compiler option, the compiler cannot determine whether nullptr indicates a native or managed null pointer value.

To make your intention clear to the compiler, use nullptr to specify a managed value or __nullptr to specify a native value.

Microsoft has implemented this as a component extension.

Although programmers need not know the internal values, the compiler must always be informed which type of null pointer is required, so that it can make the distinction if necessary (see questions 5.2, 5.5, and 5.6).

C++11 corrects this by introducing a new keyword to serve as a distinguished null pointer constant: nullptr.

It is of type nullptr_t, which is implicitly convertible and comparable to any pointer type or pointer-to-member type.

It is not implicitly convertible or comparable to integral types, except for bool.