c# - Defining operators and testing for null -


i have class in c# define operator ==. method have throws object null exception when testing following

myclass = new myclass(); if(a==null)....

this frustrating because in definition of operator can't ask if either parameter null because go infinite recursion.

how test see if either parameter null when defining == operator.

use object.referenceequals:

if (object.referenceequals(obja, null)) { ... }

another option cast obja object:

if ((object)obja == null) { ... }

you may want consult these guidelines.


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