• bearophile <bearophileHUGS lycos.com> Dec 07 2009
• Don <nospam nospam.com> Dec 07 2009

bearophile <bearophileHUGS lycos.com> writes:

Thanks to Andrei to explain the situation better.

Denis Koroskin:
 OpTrue also implies opFalse, which is redundant.


C# allows to define both methods, but I don't like that. The compiler can just
return the negation of opTrue, no need of opFalse. Is this a good enough
solution? It looks better than using !!.

Bye,
bearophile

Don <nospam nospam.com> writes:

bearophile wrote:
 Thanks to Andrei to explain the situation better.
 
 Denis Koroskin:
 OpTrue also implies opFalse, which is redundant.


 C# allows to define both methods, but I don't like that. The compiler can just
return the negation of opTrue, no need of opFalse. Is this a good enough
solution? It looks better than using !!.


Only the compiler uses !!
opUnary("!") is opFalse.
BTW, the last line of operatoroverloading.html is:
"The operators ! && || ?: and a few others will likely never be 
overloadable."
Never say never.