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MiniRobotLanguage (MRL)

 

LST.StkPop

Pop the Top Value from the Stack

 

 

Intention

 

The LST.StkPop command is used to remove and retrieve the top value from the stack of a specified list container. This is a fundamental operation for managing data in a Last-In-First-Out (LIFO) manner, where the last value pushed onto the stack is the first one to be retrieved.

The stack is a data structure that allows you to store and retrieve values in a specific order. The LST.StkPop command removes the top value from the stack and optionally stores it in a variable.

 

 

Syntax

 

LST.StkPop|P1[|P2]

 

 

Parameter Explanation

 

P1 - The handle of the list container. This is a numeric value or a variable that contains the handle of the list.

P2 - (Optional) The variable to store the popped value. If omitted, the value is placed on the Top of Stack (TOS).

 

 

Example

 

'***********************************

' LST.StkPop Sample Script

'***********************************

' Create a new list container

LST.New|$$LST

' Push values onto the stack

LST.StkPush|$$LST|10

LST.StkPush|$$LST|20

' Pop the top value

LST.StkPop|$$LST|$$VAL

' Display the popped value

DBP.$$VAL

' End the script

ENR.

 

 

Remarks

 

-

 

 

Limitations:

- If the stack is empty, the command will return an error or an empty value.

 

See also:

 

• LST.StkPush - Push a Value onto the Stack

• LST.StkPeek - Peek at the Top Value on the Stack