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## org.jibx.runtime
Class IntStack

    java.lang.Object
      org.jibx.runtime.IntStack

    public class IntStack

extends java.lang.Object

Growable `int` stack with type specific access methods. This implementation is unsynchronized in order to provide the best possible performance for typical usage scenarios, so explicit synchronization must be implemented by a wrapper class or directly by the application in cases where instances are modified in a multithreaded environment. See the base classes for other details of the implementation.

Version:
  1.0
Author:
  Dennis M. Sosnoski

Field Summary
`static int` | `DEFAULT_SIZE` Default initial array size.

Constructor Summary
`IntStack()` Default constructor.
`IntStack(int size)` Constructor with initial size specified.
`IntStack(int[] ints)` Constructor from array of ints.
`IntStack(int size, int growth)` Constructor with full specification.
`IntStack(IntStack base)` Copy (clone) constructor.

Method Summary
`void` | `clear()` Set the stack to the empty state.
`java.lang.Object` | `clone()` Duplicates the object with the generic call.
`void` | `ensureCapacity(int min)` Ensure that the array has the capacity for at least the specified number of values.
`boolean` | `isEmpty()` Check if stack is empty.
`int` | `peek()` Copy top value from the stack.
`int` | `peek(int depth)` Copy a value from the stack.
`int` | `pop()` Pop a value from the stack.
`int` | `pop(int count)` Pop multiple values from the stack.
`void` | `push(int value)` Push a value on the stack.
`int` | `size()` Get the number of values currently present in the stack.
`int[]` | `toArray()` Constructs and returns a simple array containing the same data as held in this stack.

Methods inherited from class java.lang.Object
`equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Field Detail

### DEFAULT_SIZE

    public static final int DEFAULT_SIZE

  Default initial array size.

  See Also:
    Constant Field Values

Constructor Detail

### IntStack

    public IntStack(int size,
                    int growth)

  Constructor with full specification.

  Parameters:
    `size` - number of `int` values initially allowed in stack
    `growth` - maximum size increment for growing stack

### IntStack

    public IntStack(int size)

  Constructor with initial size specified.

  Parameters:
    `size` - number of `int` values initially allowed in stack

### IntStack

    public IntStack()

  Default constructor.

### IntStack

    public IntStack(IntStack base)

  Copy (clone) constructor.

  Parameters:
    `base` - instance being copied

### IntStack

    public IntStack(int[] ints)

  Constructor from array of ints.

  Parameters:
    `ints` - array of ints for initial contents

Method Detail

### ensureCapacity

    public final void ensureCapacity(int min)

  Ensure that the array has the capacity for at least the specified number of values.

  Parameters:
    `min` - minimum capacity to be guaranteed

### push

    public void push(int value)

  Push a value on the stack.

  Parameters:
    `value` - value to be added

### pop

    public int pop()

  Pop a value from the stack.

  Returns:
    value from top of stack
  Throws:
    `java.lang.ArrayIndexOutOfBoundsException` - on attempt to pop empty stack

### pop

    public int pop(int count)

  Pop multiple values from the stack. The last value popped is the one returned.

  Parameters:
    `count` - number of values to pop from stack (must be strictly positive)
  Returns:
    value from top of stack
  Throws:
    `java.lang.ArrayIndexOutOfBoundsException` - on attempt to pop past end of stack

### peek

    public int peek(int depth)

  Copy a value from the stack. This returns a value from within the stack without modifying the stack.

  Parameters:
    `depth` - depth of value to be returned
  Returns:
    value from stack
  Throws:
    `java.lang.ArrayIndexOutOfBoundsException` - on attempt to peek past end of stack

### peek

    public int peek()

  Copy top value from the stack. This returns the top value without removing it from the stack.

  Returns:
    value at top of stack
  Throws:
    `java.lang.ArrayIndexOutOfBoundsException` - on attempt to peek empty stack

### toArray

    public int[] toArray()

  Constructs and returns a simple array containing the same data as held in this stack. Note that the items will be in reverse pop order, with the last item to be popped from the stack as the first item in the array.

  Returns:
    array containing a copy of the data

### clone

    public java.lang.Object clone()

  Duplicates the object with the generic call.

  Overrides:
    `clone` in class `java.lang.Object`
  Returns:
    a copy of the object

### size

    public int size()

  Get the number of values currently present in the stack.

  Returns:
    count of values present

### isEmpty

    public boolean isEmpty()

  Check if stack is empty.

  Returns:
    `true` if stack empty, `false` if not

### clear

    public void clear()

  Set the stack to the empty state.

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