🚀 go-pugleaf

jjb@watson.ibm.com (John Barton) wrote:
>In article <47dn87$a17@sunsystem5.informatik.tu-muenchen.de>,
>|> You can extend this idea:
>|>
>|> template<class T> T  operator- (T&a, T&b) { return a + (-b); }
>|> template<class T> T  operator- (T&a)      { return 0 - a; }
>|> template<class T> T& operator+ (T&a)      { return a; }
>|> template<class T> T& operator++(T&a)      { return a += 1; }
>|> template<class T> T& operator++(T&a,int)  { return ++a; }
>
>This will not work: it prevent you from writing any templates
>for these operators over types that do not have "1" or "0"
>or that need a definition other than the one above.

How does it prevent it? [Quote WP ??]

   
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