TestStand and memory usage

I have a pretty basic question, but I'm curious to know what is happening when I assign a string to a string of TestStand.

If I had to do the following:

Locals.String = Locals.String_2

TestStand copy the string or strings are pointing to the same place? Is there a way to refer to the location even if strings are copied?

TestStand strings have copy on write behavior. This means that when you make an expression you wrote, a copy is not made yet, but if a variable is later changed, here a copy made at this time. From the point of view of the user, it is no different if a copy had been made immediately when the assignment was made. The only difference lies in the use of memory.

NOTE: If what you really want is that variables share a string so that if it has been modified in two places it will affect the value of two, you can use an object reference to point to the chain, or create an alias to the original string variable. You can create an alias variable in creating dynamically using the SetPropertyObject API as well as the options (PropOption_NotOwning | ) ( PropOption_InsertIfMissing)

Hope this helps explain things,

-Doug

Tags: NI Software

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