The standard example is: void f(int x); void f(char *x); ... f(0); // calls void... | Hacker News

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Someone on Aug 13, 2011 | parent | context | favorite | on: C++ 11 Approved

The standard example is:

    void f(int x);
    void f(char *x);
    ...
    f(0);  // calls void f(int)

That may seem contrived, but you may not know of the f(int) overload, especially in combination with templates.

NULL, if #define'd as (void *)0, prevents that error.

pmjordan on Aug 13, 2011 [–]

NULL is actually #defined to 0 in C++ as void* is not implicitly convertible to any pointer type as it is in C. So unlike in C there has been no safety in using NULL. Until now.

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