====== xor ======

===== Description =====

The boolean 'xor' function returns true if one, and only one, of its two boolean arguments are true. 

===== Function prototype =====

<code>
bool xor <bool:arg1> <bool:arg2>
</code>

===== Arguments =====

^  Name  ^  Type  ^ Comment ^
|  //arg1//  |  bool  | The first boolean value. |
|  //arg2//  |  bool  | The second boolean value. |

===== Return value =====

True if:
  * //arg1// is true and //arg2// is false, or;
  * //arg2// is true and //arg1// is false.
False otherwise.

===== Example =====

<code>
echo <zs:xor false false> // should be false
echo <zs:xor false true> // should be true
echo <zs:xor true false> // should be true
echo <zs:xor true true> // should be false
</code>

... the output of which is written to the event log by [[plugins:general:zeoscript:reference:functions:echo]] as:

<file>
false
true
true
false
</file>

===== Comments =====

None.

===== See also =====

  * [[plugins:general:zeoscript:reference:functions:not]]
  * [[plugins:general:zeoscript:reference:functions:or]]
  * [[plugins:general:zeoscript:reference:functions:and]]