PHP | DsDeque allocate() Function

PHP | Ds\Stack allocate() Function

Last Updated : 10 May, 2021

The Ds\Stack::allocate() function is an inbuilt function in PHP which is used to allocate memory for required capacity. This function allocates sufficient memory for a given capacity of an instance of Stack class.
Syntax:

void Ds\Stack::allocate( $capacity )

Parameters: This function accepts a single parameter $capacity which is an integral value denoting the number of values for which capacity is needed to allocate.
Return Value: This function does not return any value.
Below programs illustrate the Ds\Stack::allocate() function in PHP:
Program 1:

php

<?php 

// PHP program to illustrate the 
// Ds\Stack::allocate() function 

// Create a Stack instance 
$stack = new \Ds\Stack(); 
  
echo("Allocated Space is: "); 
  
// Use capacity() function 
var_dump($stack->capacity()); 
  
echo("Allocated space is: "); 
  
// Use allocate() function to  
// allocate capacity 
$stack->allocate(50); 
  
// Display the allocated stack 
// capacity 
var_dump($stack->capacity()); 

?>

Output:

Allocated Space is: int(8)
Allocated space is: int(50)

Program 2:

php

<?php 

// Declare new stack 
$stack = new \Ds\Stack(); 

echo("Allocated Space is: "); 

// Use capacity() function 
var_dump($stack->capacity()); 

echo("Allocated space is: "); 

// Use allocate() function to 
// allocate capacity 
$stack->allocate(5); 

// Display the stack capacity 
var_dump($stack->capacity()); 

echo("Allocated space is: "); 

// Use allocate() function to 
// allocate capacity 
$stack->allocate(120); 

// Display the stack capacity 
var_dump($stack->capacity()); 
?>

Output:

Allocated Space is: int(8)
Allocated space is: int(8)
Allocated space is: int(120)

Reference: https://www.php.net/manual/en/ds-stack.allocate.php

PHP | DsDeque allocate() Function

jit_t

Improve

Article Tags :

Similar Reads

PHP | DsSet allocate() Function

The Ds\Set::allocate() function is an inbuilt function in PHP which is used to allocate memory for required capacity. Syntax: void public Ds\Set::allocate( $capacity ) Parameters: This function accepts single parameter $capacity which holds the value of capacity to be allocated. Capacity always roun

PHP | DsStack allocate() Function

The Ds\Stack::allocate() function is an inbuilt function in PHP which is used to allocate memory for required capacity. This function allocates sufficient memory for a given capacity of an instance of Stack class.Syntax: void Ds\Stack::allocate( $capacity ) Parameters: This function accepts a single

PHP | DsDeque allocate() Function

The Ds\Deque::allocate() function is an inbuilt function in PHP which is used to allocate memory as specified in the argument. If the argument is not defined, then the Deque of default size will be created. Syntax: public Ds\Deque::allocate( $capacity ) : void Parameters: This function accepts singl

PHP DsQueue allocate() Function

The Ds\Queue::allocate() Function in PHP is used to allocate memory for a Queue class instance. This function allocates sufficient memory for a given capacity for an instance of Queue class. Syntax: void public Ds\Queue::allocate ( int $capacity ) Parameters: This function accepts a single parameter

PHP | DsVector allocate() Function

The Ds\Vector::allocate() function is an inbuilt function in PHP which is used to allocate enough memory for a required capacity. It provides the custom size of the vector to allocate space. Syntax: void public Ds\Vector::allocate( $capacity ) Parameters: This function accepts a single parameter $ca

PHP | DsSequence allocate() Function

The Ds\Sequence::allocate() function is an inbuilt function in PHP which is used to allocate enough memory for required capacity. Syntax: void abstract public Ds\Sequence::allocate ( int $capacity ) Parameter: This function accepts single parameter $capacity which indicate number of capacity allocat

PHP DsPriorityQueue allocate() Function

The Ds\PriorityQueue::allocate() Function in PHP is used to allocate memory for a PriorityQueue class instance. This function allocates sufficient memory for a given capacity for an instance of PriorityQueue class. Syntax: void public Ds\PriorityQueue::allocate ( int $capacity ) Parameters: This fun

PHP | DsMap sort() Function

The Ds\Map::sort() function of DS\Map class in PHP is used to in-place sort the elements of a specified Map instance according to the values. By default, the Map is sorted according to the increasing order of the values. Syntax: Ds\Pair public Ds\Map::sort ( int $position ) Parameter: This function

PHP DsSet sort() Function

The Ds\Set::sort() function of DS\Set class in PHP is used to in-place sort the elements of a specified Set instance according to the values. By default, the Set is sorted according to the increasing order of the values. Syntax: void public Ds\Set::sort ([ callable $comparator ] ) Parameters: This f

PHP | DsSet capacity() Function

The Ds\Set::capacity() function is an inbuilt function in PHP which is used to return the capacity of the set. Syntax: int public Ds\Set::capacity( void ) Parameter: This function does not accepts any parameter. Return value: This function returns the current capacity of set. Below programs illustra