Crestron simpl plus language ref 사용자 설명서

Software Crestron 

®

z SIMPL+

Function arguments that have been declared as ReadOnlyByRef can only have their 
values read;  values cannot be assigned to them.  

The following are examples of this error:

FUNCTION MyFunc( INTEGER x, ReadOnlyByRef INTEGER y )

{

   x = 5; // ok

   x = y; // ok – the value of y can be read

   y = 6; // error – y is read-only

}

STRING_OUTPUT variables can only have their values read.  Once assigned a 
value, that value is immediately acted upon by the control system, and the value is 
assumed to be unknown thereafter.

The following are examples of this error:

STRING_OUTPUT sOut;

STRING str[100];

FUNCTION MyFunc()

{

   str = “abc”;                // ok

   sOut = str;                 // ok – sOut can be assigned a value

   sOut = “abc”;               // ok – sOut can be assigned a value

   str = sOut;                 // error – the value of sOut is lost

   Print( “str = %s”, str );   // ok – STRINGs can be read and 

written

   Print( “sOut = %s”, sOut ); // error – the value of sOut is 

unknown

}